Messier object

Messier Catalog
	All Messier objects, photographed by an amateur astronomer
Alternative names	Messier Catalogue
Survey type	Astronomical catalogue
Named after	Charles Messier
Published	1774 (preliminary version)
	Related media on Commons

The Messier objects are a set of 110 astronomical objects catalogued by the French astronomer Charles Messier in his Catalogue des Nébuleuses et des Amas d'Étoiles (Catalogue of Nebulae and Star Clusters). Because Messier was only interested in finding comets, he created a list of those non-comet objects that frustrated his hunt for them. The compilation of this list, in collaboration with his assistant Pierre Méchain, is known as the Messier catalogue. This catalogue of objects is one of the most famous lists of astronomical objects, and many Messier objects are still referenced by their Messier numbers.[1] The catalogue includes most of the astronomical deep-sky objects that can easily be observed from Earth's Northern Hemisphere; many Messier objects are popular targets for amateur astronomers.[2]

A preliminary version first appeared in 1774 in the Memoirs of the French Academy of Sciences for the year 1771.[3][4][5] The first version of Messier's catalogue contained 45 objects, which were not numbered. Eighteen of the objects were discovered by Messier; the rest had been previously observed by other astronomers.[6] By 1780 the catalogue had increased to 70 objects.[7] The final version of the catalogue containing 103 objects was published in 1781 in the Connaissance des Temps for the year 1784.[8][4] However, due to what was thought for a long time to be the incorrect addition of Messier 102, the total number remained 102. Other astronomers, using side notes in Messier's texts, eventually filled out the list up to 110 objects.[9]

The catalogue consists of a diverse range of astronomical objects, from star clusters and nebulae to galaxies. For example, Messier 1 is a supernova remnant, known as the Crab Nebula, and the great spiral Andromeda Galaxy is M31. Further inclusions followed, the first addition came from Nicolas Camille Flammarion in 1921, who added Messier 104 after finding Messier's side note in his 1781 edition exemplar of the catalogue. M105 to M107 were added by Helen Sawyer Hogg in 1947, M108 and M109 by Owen Gingerich in 1960, and M110 by Kenneth Glyn Jones in 1967.[10]

Lists and editions

Charles Messier

The first edition of 1774 covered 45 objects (M1 to M45). The total list published by Messier in 1781 contained 103 objects, but the list was expanded through successive additions by other astronomers, motivated by notes in Messier's and Méchain's texts indicating that at least one of them knew of the additional objects. The first such addition came from Nicolas Camille Flammarion in 1921, who added Messier 104 after finding a note Messier made in a copy of the 1781 edition of the catalogue. M105 to M107 were added by Helen Sawyer Hogg in 1947, M108 and M109 by Owen Gingerich in 1960, and M110 by Kenneth Glyn Jones in 1967.[11] M102 was observed by Méchain, who communicated his notes to Messier. Méchain later concluded that this object was simply a re-observation of M101, though some sources suggest that the object Méchain observed was the galaxy NGC 5866 and identify that as M102.[12]

Messier's final catalogue was included in the Connaissance des Temps pour l'Année 1784 [Knowledge of the Times for the Year 1784], the French official yearly publication of astronomical ephemerides.[8][4]

Messier lived and did his astronomical work at the Hôtel de Cluny (now the Musée national du Moyen Âge), in Paris, France. The list he compiled contains only objects found in the sky area he could observe: from the north celestial pole to a celestial latitude of about −35.7° . He did not observe or list objects visible only from farther south, such as the Large and Small Magellanic Clouds.[13]

Observations

The Messier catalogue comprises nearly all of the most spectacular examples of the five types of deep-sky object – diffuse nebulae, planetary nebulae, open clusters, globular clusters, and galaxies – visible from European latitudes. Furthermore, almost all of the Messier objects are among the closest to Earth in their respective classes, which makes them heavily studied with professional class instruments that today can resolve very small and visually significant details in them. A summary of the astrophysics of each Messier object can be found in the Concise Catalog of Deep-sky Objects.[14]

Since these objects could be observed visually with the relatively small-aperture refracting telescope (approximately 100 mm ≈ 4 inches) used by Messier to study the sky, they are among the brightest and thus most attractive astronomical objects (popularly called deep-sky objects) observable from Earth, and are popular targets for visual study and astrophotography available to modern amateur astronomers using larger aperture equipment. In early spring, astronomers sometimes gather for "Messier marathons", when all of the objects can be viewed over a single night.[15][16]

Messier objects

Open cluster

Globular cluster

Diffuse nebula

Planetary nebula

Supernova remnant

Galaxy

Other

Messier number	NGC/IC number	Common name	Object type	Distance (kly)	Constellation	Apparent magnitude	Apparent dimensions	Right ascension	Declination
M1[17]	NGC 1952	Crab Nebula	Supernova remnant	4.9–8.1	Taurus	8.4	420″ × 290″	05^h 34^m 31.94^s	+22° 00′ 52.2″
M2[18]	NGC 7089	–	Globular cluster	33	Aquarius	6.5	16′.0	21^h 33^m 27.02^s	−00° 49′ 23.7″
M3[19]	NGC 5272	–	Globular cluster	33.9	Canes Venatici	6.2	18′.0	13^h 42^m 11.62^s	+28° 22′ 38.2″
M4[20]	NGC 6121	Spider Globular	Globular cluster	7.2	Scorpius	5.6	26′.0	16^h 23^m 35.22^s	−26° 31′ 32.7″
M5[21]	NGC 5904	Rose Cluster	Globular cluster	24.5	Serpens	5.6	23′.0	15^h 18^m 33.22^s	+02° 04′ 51.7″
M6[22]	NGC 6405	Butterfly Cluster	Open cluster	1.6	Scorpius	4.2	25′	17^h 40.1^m	−32° 13′
M7[23]	NGC 6475	Ptolemy's Cluster	Open cluster	0.65–1.31	Scorpius	3.3	80.0′	17^h 53^m 51.2^s	−34° 47′ 34″
M8[24]	NGC 6523	Lagoon Nebula	Nebula with cluster	4.1	Sagittarius	4.6	90′ × 40′	18^h 03^m 37^s	−24° 23′ 12″
M9[25]	NGC 6333	–	Globular cluster	25.8	Ophiuchus	7.7	9.3′	17^h 19^m 11.78^s	−18° 30′ 58.5″
M10[26]	NGC 6254	–	Globular cluster	14.3	Ophiuchus	6.6	20′	16^h 57^m 8.92^s	−04° 05′ 58.07″
M11[27]	NGC 6705	Wild Duck Cluster	Open cluster	6.2	Scutum	5.8	22.8′	18^h 51.1^m	−06° 16′
M12[28]	NGC 6218	–	Globular cluster	15.7	Ophiuchus	6.7	16′	16^h 47^m 14.18^s	−01° 56′ 54.7″
M13[29]	NGC 6205	Great Hercules Cluster	Globular cluster	22.2	Hercules	5.8	20'	16^h 41^m 41.24^s	+36° 27′ 35.5″
M14[30]	NGC 6402	–	Globular cluster	30.3	Ophiuchus	7.6	11'	17^h 37^m 36.15^s	−03° 14′ 45.3″
M15[31]	NGC 7078	Great Pegasus Cluster	Globular cluster	33	Pegasus	6.2	18'	21^h 29^m 58.33^s	+12° 10′ 01.2″
M16[32]	NGC 6611	Eagle Nebula	H II region nebula with cluster	7	Serpens	6.4	70' x 50'	18^h 18^m 48^s	−13° 49′
M17[33]	NGC 6618	Omega, Swan, Horseshoe, Lobster, or Checkmark Nebula	H II region nebula with cluster	5–6	Sagittarius	6.0	11'	18^h 20^m 26^s	−16° 10′ 36″
M18[34]	NGC 6613	Black Swan Cluster	Open cluster	4.9	Sagittarius	7.5	9.8'	18^h 19.9^m	−17° 08′
M19[35]	NGC 6273	–	Globular cluster	28.7	Ophiuchus	6.8	17'	17^h 02^m 37.69^s	−26° 16′ 04.6″
M20[36]	NGC 6514	Trifid Nebula	H II region nebula with cluster	5.2	Sagittarius	6.3	28'	18^h 02^m 23^s	−23° 01′ 48″
M21[37]	NGC 6531	Webb's Cross Cluster	Open cluster	4.25	Sagittarius	6.5	14'	18^h 04.6^m	−22° 30′
M22[38]	NGC 6656	Great Sagittarius Cluster	Globular cluster	9.6–11.6	Sagittarius	5.1	32'	18^h 36^m 23.94^s	−23° 54′ 17.1″
M23[39]	NGC 6494	–	Open cluster	2.15	Sagittarius	5.5	35'	17^h 56.8^m	−19° 01′
M24[40]	IC 4715	Small Sagittarius Star Cloud	Milky Way star cloud	~10	Sagittarius	2.5	2°x1°	18^h 17^m	−18° 33′
M25[41]	IC 4725	–	Open cluster	2.0	Sagittarius	4.6	36'	18^h 31.6^m	−19° 15′
M26[42]	NGC 6694	–	Open cluster	5.0	Scutum	8.0	14'	18^h 45.2^m	−09° 24′
M27[43]	NGC 6853	Dumbbell Nebula	Planetary nebula	1.148–1.52	Vulpecula	7.4	8.0′ × 5.6′	19^h 59^m 36.340^s	+22° 43′ 16.09″
M28[44]	NGC 6626	–	Globular cluster	17.9	Sagittarius	6.8	11′.2	18^h 24^m 32.89^s	−24° 52′ 11.4″
M29[45]	NGC 6913	Cooling Tower	Open cluster	7.2	Cygnus	7.1	7'	20^h 23^m 56^s	+38° 31′ 24″
M30[46]	NGC 7099	Jellyfish Cluster	Globular cluster	27.8–31	Capricornus	7.2	12'	21^h 40^m 22.12^s	−23° 10′ 47.5″
M31[47]	NGC 224	Andromeda Galaxy	Spiral galaxy	2,430–2,650	Andromeda	3.4	3.167° × 1°	00^h 42^m 44.3^s	+41° 16′ 09″
M32[48]	NGC 221	Andromeda Satellite #1	Dwarf elliptical galaxy	2,410–2,570	Andromeda	8.1	8′.7 × 6′.5	00^h 42^m 41.8^s	+40° 51′ 55″
M33[49]	NGC 598	Triangulum/Pinwheel Galaxy	Spiral galaxy	2,380–3,070	Triangulum	5.7	70'.8 x 41'.7	01^h 33^m 50.02^s	+30° 39′ 36.7″
M34[50]	NGC 1039	Spiral Cluster	Open cluster	1.5	Perseus	5.5		02^h 42.1^m	+42° 46′
M35[51]	NGC 2168	Shoe-Buckle Cluster	Open cluster	2.8	Gemini	5.3		06^h 09.1^m	+24° 21′
M36[52]	NGC 1960	Pinwheel Cluster	Open cluster	4.1	Auriga	6.3		05^h 36^m 12^s	+34° 08′ 04″
M37[53]	NGC 2099	Salt and Pepper Cluster	Open cluster	4.511	Auriga	6.2		05^h 52^m 18^s	+32° 33′ 02″
M38[54]	NGC 1912	Starfish Cluster	Open cluster	4.2	Auriga	7.4		05^h 28^m 42^s	+35° 51′ 18″
M39[55]	NGC 7092	–	Open cluster	0.8244	Cygnus	4.6		21^h 31^m 42^s	+48° 26′ 00″
M40[56]	–	Winnecke-4	Optical Double	0.51	Ursa Major	8.4		12^h 22^m 12.5^s	+58° 04′ 59″
M41[57]	NGC 2287	Little Beehive Cluster	Open cluster	2.3	Canis Major	4.5		06^h 46.0^m	−20° 46′
M42[58]	NGC 1976	Great Orion Nebula	H II region nebula	1.324–1.364	Orion	4.0		05^h 35^m 17.3^s	−05° 23′ 28″
M43[59]	NGC 1982	De Mairan's Nebula	H II region nebula (part of the Orion Nebula)	1.6	Orion	9.0		05^h 35.6^m	−05° 16′
M44[60]	NGC 2632	Beehive Cluster or Praesepe	Open cluster	0.577	Cancer	3.7		08^h 40.4^m	+19° 59′
M45[61]	–	Pleiades, Seven Sisters or Subaru	Open cluster	0.39–0.46	Taurus	1.6		03^h 47^m 24^s	+24° 07′ 00″
M46[62]	NGC 2437	–	Open cluster	5.4	Puppis	6.0		07^h 41.8^m	−14° 49′
M47[63]	NGC 2422	–	Open cluster	1.6	Puppis	4.4		07^h 36.6^m	−14° 30′
M48[64]	NGC 2548	–	Open cluster	1.5	Hydra	5.5		08^h 13.7^m	−05° 45′
M49[65]	NGC 4472	–	Elliptical galaxy	53,600–58,200	Virgo	8.4		12^h 29^m 46.7^s	+08° 00′ 02″
M50[66]	NGC 2323	Heart-Shaped Cluster	Open cluster	3.2	Monoceros	5.9		07^h 03.2^m	−08° 20′
M51[67]	NGC 5194, NGC 5195	Whirlpool Galaxy	Spiral galaxy	19,000–27,000	Canes Venatici	8.4		13^h 29^m 52.7^s	+47° 11′ 43″
M52[68]	NGC 7654	Scorpion Cluster	Open cluster	5.0	Cassiopeia	7.3		23^h 24.2^m	+61° 35′
M53[69]	NGC 5024	–	Globular cluster	58	Coma Berenices	7.6		13^h 12^m 55.25^s	+18° 10′ 05.4″
M54[70]	NGC 6715	–	Globular cluster	87.4	Sagittarius	7.6		18^h 55^m 03.33^s	−30° 28′ 47.5″
M55[71]	NGC 6809	Specter Cluster	Globular cluster	17.6	Sagittarius	6.3		19^h 39^m 59.71^s	−30° 57′ 53.1″
M56[72]	NGC 6779	–	Globular cluster	32.9	Lyra	8.3		19^h 16^m 35.57^s	+30° 11′ 00.5″
M57[73]	NGC 6720	Ring Nebula	Planetary nebula	1.6–3.8	Lyra	8.8		18^h 53^m 35.079^s	+33° 01′ 45.03″
M58[74]	NGC 4579	–	Barred Spiral galaxy	~63,000	Virgo	9.7		12^h 37^m 43.5^s	+11° 49′ 05″
M59[75]	NGC 4621	–	Elliptical galaxy	55,000–65,000	Virgo	9.6		12^h 42^m 02.3^s	+11° 38′ 49″
M60[76]	NGC 4649	–	Elliptical galaxy	51,000–59,000	Virgo	8.8		12^h 43^m 39.6^s	+11° 33′ 09″
M61[77]	NGC 4303	Swelling Spiral	Spiral galaxy	50,200–54,800	Virgo	9.7		12^h 21^m 54.9^s	+04° 28′ 25″
M62[78]	NGC 6266	Flickering Globular	Globular cluster	22.2	Ophiuchus	6.5		17^h 01^m 12.60^s	−30° 06′ 44.5″
M63[79]	NGC 5055	Sunflower Galaxy	Spiral galaxy	37,000	Canes Venatici	8.6		13^h 15^m 49.3^s	+42° 01′ 45″
M64[80]	NGC 4826	Black Eye Galaxy	Spiral galaxy	22,000–26,000	Coma Berenices	8.5		12^h 56^m 43.7^s	+21° 40′ 58″
M65[81]	NGC 3623	Leo Triplet	Barred Spiral galaxy	41,000–42,000	Leo	9.3		11^h 18^m 55.9^s	+13° 05′ 32″
M66[82]	NGC 3627	Leo Triplet	Barred Spiral galaxy	31,000–41,000	Leo	8.9		11^h 20^m 15.0^s	+12° 59′ 30″
M67[83]	NGC 2682	King Cobra Cluster	Open cluster	2.61–2.93	Cancer	6.1		08^h 51.3^m	+11° 49′
M68[84]	NGC 4590	–	Globular cluster	33.6	Hydra	7.8		12^h 39^m 27.98^s	−26° 44′ 38.6″
M69[85]	NGC 6637	–	Globular cluster	29.7	Sagittarius	7.6		18^h 31^m 23.10^s	−32° 20′ 53.1″
M70[86]	NGC 6681	–	Globular cluster	29.4	Sagittarius	7.9		18^h 43^m 12.76^s	−32° 17′ 31.6″
M71[87]	NGC 6838	Angelfish Cluster	Globular cluster	13.0	Sagitta	8.2		19^h 53^m 46.49^s	+18° 46′ 45.1″
M72[88]	NGC 6981	–	Globular cluster	53.40–55.74	Aquarius	9.3		20^h 53^m 27.70^s	−12° 32′ 14.3″
M73[89]	NGC 6994	–	Asterism	~2.5	Aquarius	9.0		20^h 58^m 54^s	−12° 38′
M74[90]	NGC 628	Phantom Galaxy[91]	Spiral galaxy	24,000–36,000	Pisces	9.4		01^h 36^m 41.8^s	+15° 47′ 01″
M75[92]	NGC 6864	–	Globular cluster	67.5	Sagittarius	8.5		20^h 06^m 04.75^s	−21° 55′ 16.2″
M76[93]	NGC 650, NGC 651	Little Dumbbell Nebula	Planetary nebula	2.5	Perseus	10.1		01^h 42.4^m	+51° 34′ 31″
M77[94]	NGC 1068	Cetus A or Squid Galaxy	Spiral galaxy	47,000	Cetus	8.9		02^h 42^m 40.7^s	−00° 00′ 48″
M78[95]	NGC 2068	Casper the Friendly Ghost Nebula	Diffuse nebula	1.6	Orion	8.3		05^h 46^m 46.7^s	+00° 00′ 50″
M79[96]	NGC 1904	–	Globular cluster	41	Lepus	7.7		05^h 24^m 10.59^s	−24° 31′ 27.3″
M80[97]	NGC 6093	–	Globular cluster	32.6	Scorpius	7.3		16^h 17^m 02.41^s	−22° 58′ 33.9″
M81[98]	NGC 3031	Bode's Galaxy	Spiral galaxy	11,400–12,200	Ursa Major	6.9		09^h 55^m 33.2^s	+69° 03′ 55″
M82[99]	NGC 3034	Cigar Galaxy	Starburst galaxy	10,700–12,300	Ursa Major	8.4		09^h 55^m 52.2^s	+69° 40′ 47″
M83[100]	NGC 5236	Southern Pinwheel Galaxy	Barred Spiral galaxy	14,700	Hydra	7.6		13^h 37^m 00.9^s	−29° 51′ 57″
M84[101]	NGC 4374	–	Lenticular galaxy	57,000–63,000	Virgo	9.1		12^h 25^m 03.7^s	+12° 53′ 13″
M85[102]	NGC 4382	–	Lenticular galaxy	56,000–64,000	Coma Berenices	9.1		12^h 25^m 24.0^s	+18° 11′ 28″
M86[103]	NGC 4406	–	Lenticular galaxy	49,000–55,000	Virgo	8.9		12^h 26^m 11.7^s	+12° 56′ 46″
M87[104]	NGC 4486	Virgo A or Smoking Gun Galaxy	Elliptical galaxy	51,870–55,130	Virgo	8.6		12^h 30^m 49.42338^s	+12° 23′ 28.0439″
M88[105]	NGC 4501	–	Spiral galaxy	39,000–56,000	Coma Berenices	9.6		12^h 31^m 59.2^s	+14° 25′ 14″
M89[106]	NGC 4552	–	Elliptical galaxy	47,000–53,000	Virgo	9.8		12^h 35^m 39.8^s	+12° 33′ 23″
M90[107]	NGC 4569	–	Spiral galaxy	55,900–61,500	Virgo	9.5		12^h 36^m 49.8^s	+13° 09′ 46″
M91[108]	NGC 4548	–	Barred Spiral galaxy	47,000–79,000	Coma Berenices	10.2		12^h 35^m 26.4^s	+14° 29′ 47″
M92[109]	NGC 6341	–	Globular cluster	26.7	Hercules	6.4		17^h 17^m 07.39^s	+43° 08′ 09.4″
M93[110]	NGC 2447	Critter Cluster	Open cluster	3.6	Puppis	6.0		07^h 44.6^m	−23° 52′
M94[111]	NGC 4736	Crocodile Eye or Cat's Eye Galaxy	Spiral galaxy	14,700–17,300	Canes Venatici	8.2		12^h 50^m 53.1^s	+41° 07′ 14″
M95[112]	NGC 3351	–	Barred Spiral galaxy	31,200–34,000	Leo	9.7		10^h 43^m 57.7^s	+11° 42′ 14″
M96[113]	NGC 3368	–	Spiral galaxy	28,000–34,000	Leo	9.2		10^h 46^m 45.7^s	+11° 49′ 12″
M97[114]	NGC 3587	Owl Nebula	Planetary nebula	2.03	Ursa Major	9.9		11^h 14^m 47.734^s	+55° 01′ 08.50″
M98[115]	NGC 4192	–	Spiral galaxy	44,400	Coma Berenices	10.1		12^h 13^m 48.292^s	+14° 54′ 01.69″
M99[116]	NGC 4254	St. Catherine’s Wheel	Spiral galaxy	44,700–55,700	Coma Berenices	9.9		12^h 18^m 49.6^s	+14° 24′ 59″
M100[117]	NGC 4321	Mirror Galaxy	Spiral galaxy	55,000	Coma Berenices	9.3		12^h 22^m 54.9^s	+15° 49′ 21″
M101[118]	NGC 5457	Pinwheel Galaxy	Spiral galaxy	19,100–22,400	Ursa Major	7.9		14^h 03^m 12.6^s	+54° 20′ 57″
M102[119]	NGC 5866	Spindle Galaxy	Lenticular galaxy	50,000	Draco	9.9		15^h 06^m 29.5^s	+55° 45′ 48″
M103[120]	NGC 581	–	Open cluster	10	Cassiopeia	7.4		01^h 33.2^m	+60° 42′
M104[121]	NGC 4594	Sombrero Galaxy	Spiral galaxy	28,700–30,900	Virgo	8.0		12^h 39^m 59.4^s	−11° 37′ 23″
M105[122]	NGC 3379	–	Elliptical galaxy	30,400–33,600	Leo	9.3		10^h 47^m 49.6^s	+12° 34′ 54″
M106[123]	NGC 4258	–	Spiral galaxy	22,200–25,200	Canes Venatici	8.4		12^h 18^m 57.5^s	+47° 18′ 14″
M107[124]	NGC 6171	Crucifix Cluster	Globular cluster	20.9	Ophiuchus	7.9		16^h 32^m 31.86^s	−13° 03′ 13.6″
M108[125]	NGC 3556	Surfboard Galaxy	Barred Spiral galaxy	46,000	Ursa Major	10.0		11^h 11^m 31.0^s	+55° 40′ 27″
M109[126]	NGC 3992	Vacuum Cleaner Galaxy	Barred Spiral galaxy	59,500–107,500	Ursa Major	9.8		11^h 57^m 36.0^s	+53° 22′ 28″
M110[127]	NGC 205	–	Dwarf elliptical galaxy	2,600–2,780	Andromeda	8.5		00^h 40^m 22.1^s	+41° 41′ 07″

Star chart of Messier objects

Star chart depicting the Messier objects plotted on a rectangular grid representing right ascension and declination

References

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English, Neil (2018). Chronicling the Golden Age of Astronomy: A history of visual observing from Harriot to Moore. Springer. p. 91. ISBN 978-3319977072. Retrieved 9 October 2019.
Finlay, W.H. (2003). Concise Catalog of Deep-sky Objects: Astrophysical information for 500 galaxies. Springer. ISBN 1-85233-691-9.
"The Messier Marathon". Students for the Exploration and Development of Space (SEDS). 19 March 2013. Retrieved 17 May 2014.
Stoyan, Ronald; Binnewies, Stefan; Friedrich, Susanne (2008). Atlas of the Messier Objects: Highlights of the Deep Sky. Cambridge University Press. ISBN 9783319977072.
"Messier 1". SEDS Messier catalog. Retrieved 17 March 2014.
"Messier 2". SEDS Messier catalog. Retrieved 17 March 2014.
"Messier 3". SEDS Messier catalog. Retrieved 17 March 2014.
"Messier 4". SEDS Messier catalog. Retrieved 17 March 2014.
"Messier 5". SEDS Messier catalog. Retrieved 17 March 2014.
"Messier 6". SEDS Messier catalog. Retrieved 17 March 2014.
"Messier 7". SEDS Messier catalog. Retrieved 17 March 2014.
Stoyan, Ronald (2008). Atlas of the Messier Objects: Highlights of the Deep Sky. Cambridge University Press. p. 88. ISBN 978-0521895545.
"Messier 9". SEDS Messier catalog. Retrieved 17 March 2014.
"Messier 10". SEDS Messier catalog. Retrieved 17 March 2014.
O'Meara, Stephen James; Levy, David H. (1998), Deep-Sky Companions: The Messier Objects, Cambridge University Press, p. 65, ISBN 978-0521553322.
"Messier 12". SEDS Messier catalog. Retrieved 17 March 2014.
"Messier 13". SEDS Messier catalog. Retrieved 17 March 2014.
"Messier 14". SEDS Messier catalog. Retrieved 17 March 2014.
"Messier 15". SEDS Messier catalog. Retrieved 17 March 2014.
"Messier 16". SEDS Messier catalog. Retrieved 17 March 2014.
"Messier 17". SEDS Messier catalog. Retrieved 17 March 2014.
"Messier 18". SEDS Messier catalog. Retrieved 17 March 2014.
"Messier 19". SEDS Messier catalog. Retrieved 17 March 2014.
"Messier 20 (The Trifid Nebula)". Hubble's Messier Catalog. 6 October 2017. Retrieved 28 April 2022.
"Messier 21". SEDS Messier catalog. Retrieved 17 March 2014.
"Messier 22". SEDS Messier catalog. Retrieved 17 March 2014.
Thompson, Robert; Thompson, Barbara (2007), Illustrated Guide to Astronomical Wonders: From Novice to Master Observer, DIY science, O'Reilly Media, Inc., p. 408, ISBN 978-0596526856
French, Sue (July 2015). "Small Sagittarius star cloud: The Sagittarius Milky Way is host to dark nebulae and open clusters". Sky & Telescope. p. 56.
"Messier 25". SEDS Messier catalog. Retrieved 17 March 2014.
"Messier 26". SEDS Messier catalog. Retrieved 17 March 2014.
"Messier 27". SEDS Messier catalog. Retrieved 17 March 2014.
"Messier 28". SEDS Messier catalog. Retrieved 17 March 2014.
"Messier 29". SEDS Messier catalog. Retrieved 17 March 2014.
"Messier 30". SEDS Messier catalog. Retrieved 17 March 2014.
"Messier 31". SEDS Messier catalog. Retrieved 17 March 2014.
"Messier 32". SEDS Messier catalog. Retrieved 17 March 2014.
"Messier 33". SEDS Messier catalog. Retrieved 17 March 2014.
"Messier 34". SEDS Messier catalog. Retrieved 17 March 2014.
"Messier 35". SEDS Messier catalog. Retrieved 17 March 2014.
"Messier 36". SEDS Messier catalog. Retrieved 17 March 2014.
"Messier 37". SEDS Messier catalog. Retrieved 17 March 2014.
"Messier 38". SEDS Messier catalog. Retrieved 17 March 2014.
"Messier 39". SEDS Messier catalog. Retrieved 17 March 2014.
"Messier 40". SEDS Messier catalog. Retrieved 17 March 2014.
"Messier 41". SEDS Messier catalog. Retrieved 17 March 2014.
"Messier 42". SEDS Messier catalog. Retrieved 17 March 2014.
"Messier 43". SEDS Messier catalog. Retrieved 17 March 2014.
"Messier 44". SEDS Messier catalog. Retrieved 17 March 2014.
"Messier 45". SEDS Messier catalog. Retrieved 17 March 2014.
"Messier 46". SEDS Messier catalog. Retrieved 17 March 2014.
Stoyan, Ronald (2008). Atlas of the Messier Objects: Highlights of the Deep Sky. Cambridge University Press. p. 195. ISBN 978-0521895545.
"Messier 48". SEDS Messier catalog. Retrieved 17 March 2014.
"Messier 49". SEDS Messier catalog. Retrieved 17 March 2014.
"Messier 50". SEDS Messier catalog. Retrieved 17 March 2014.
"Messier 51". SEDS Messier catalog. Retrieved 18 March 2014.
"Messier 52". SEDS Messier catalog. Retrieved 18 March 2014.
"Messier 53". SEDS Messier catalog. Retrieved 18 March 2014.
"Messier 54". SEDS Messier catalog. Retrieved 18 March 2014.
"Messier 55". SEDS Messier catalog. Retrieved 18 March 2014.
"Messier 56". SEDS Messier catalog. Retrieved 18 March 2014.
"Messier 57". SEDS Messier catalog. Retrieved 18 March 2014.
"Messier 58". SEDS Messier catalog. Retrieved 18 March 2014.
"Messier 59". SEDS Messier catalog. Retrieved 18 March 2014.
"Messier 60". SEDS Messier catalog. Retrieved 18 March 2014.
"Messier 61". SEDS Messier catalog. Retrieved 18 March 2014.
"Messier 62". SEDS Messier catalog. Retrieved 18 March 2014.
"Messier 63". SEDS Messier catalog. Retrieved 18 March 2014.
"Messier 64". SEDS Messier catalog. Retrieved 18 March 2014.
"Messier 65". SEDS Messier catalog. Retrieved 18 March 2014.
"Messier 66". SEDS Messier catalog. Retrieved 18 March 2014.
"Messier 67". SEDS Messier catalog. Retrieved 18 March 2014.
"Messier 68". SEDS Messier catalog. Retrieved 18 March 2014.
"Messier 69". SEDS Messier catalog. Retrieved 18 March 2014.
"Messier 70". SEDS Messier catalog. Retrieved 18 March 2014.
"Messier 71". SEDS Messier catalog. Retrieved 18 March 2014.
"Messier 72". SEDS Messier catalog. Retrieved 18 March 2014.
"Messier 73". SEDS Messier catalog. Retrieved 18 March 2014.
"Messier 74". SEDS Messier catalog. Retrieved 18 March 2014.
"Messier 74 Phantom Galaxy". 24 July 2015. Retrieved 20 April 2020.
"Messier 75". SEDS Messier catalog. Retrieved 18 March 2014.
"Messier 76". SEDS Messier catalog. Retrieved 18 March 2014.
"Messier 77". SEDS Messier catalog. Retrieved 18 March 2014.
"Messier 78". SEDS Messier catalog. Retrieved 18 March 2014.
"Messier 79". SEDS Messier catalog. Retrieved 18 March 2014.
"Messier 80". SEDS Messier catalog. Retrieved 18 March 2014.
"Messier 81". SEDS Messier catalog. Retrieved 18 March 2014.
"Messier 82". SEDS Messier catalog. Retrieved 18 March 2014.
"Messier 83". SEDS Messier catalog. Retrieved 18 March 2014.
"Messier 84". SEDS Messier catalog. Retrieved 18 March 2014.
"Messier 85". SEDS Messier catalog. Retrieved 18 March 2014.
"Messier 86". SEDS Messier catalog. Retrieved 18 March 2014.
"Messier 87". SEDS Messier catalog. Retrieved 18 March 2014.
"Messier 88". SEDS Messier catalog. Retrieved 18 March 2014.
"Messier 89". SEDS Messier catalog. Retrieved 18 March 2014.
"Messier 90". SEDS Messier catalog. Retrieved 18 March 2014.
"Messier 91". SEDS Messier catalog. Retrieved 18 March 2014.
"Messier 92". SEDS Messier catalog. Retrieved 18 March 2014.
"Messier 93". SEDS Messier catalog. Retrieved 18 March 2014.
"Messier 94". SEDS Messier catalog. Retrieved 18 March 2014.
"Messier 95". SEDS Messier catalog. Retrieved 18 March 2014.
"Messier 96". SEDS Messier catalog. Retrieved 18 March 2014.
"Messier 97". SEDS Messier catalog. Retrieved 18 March 2014.
"Messier 98". SEDS Messier catalog. Retrieved 18 March 2014.
"Messier 99". SEDS Messier catalog. Retrieved 18 March 2014.
"Messier 100". SEDS Messier catalog. Retrieved 18 March 2014.
"Messier 101". SEDS Messier catalog. Retrieved 18 March 2014.
"Messier 102". SEDS Messier catalog. Retrieved 28 December 2016.
"Messier 103". SEDS Messier catalog. Retrieved 18 March 2014.
"Messier 104". SEDS Messier catalog. Retrieved 18 March 2014.
"Messier 105". SEDS Messier catalog. Retrieved 18 March 2014.
"Messier 106". SEDS Messier catalog. Retrieved 18 March 2014.
"Messier 107". SEDS Messier catalog. Retrieved 18 March 2014.
"Messier 108". SEDS Messier catalog. Retrieved 18 March 2014.
"Messier 109". SEDS Messier catalog. Retrieved 18 March 2014.
"Messier 110". SEDS Messier catalog. Retrieved 18 March 2014.

External links

"SEDS Messier Database". Students for the Exploration and Development of Space (SEDS). — includes images
"Messier gallery". Messier Objects 101.
"Messier objects". Deep Sky Videos.
"Messier objects". Constellation Guide.
"Messier Objects Ranked By Viewing Difficulty". Starlust.

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[1] "Original Messier Catalog of 1781". Students for the Exploration and Development of Space. 10 November 2007.

[Hubble-2] Garner, Rob (18 December 2018). "Hubble's Messier catalog". Goddard SFC. NASA. Retrieved 17 January 2019.

[3] Messier, Charles (16 February 1771). "Catalogue des Nébuleuses et des amas d'Étoiles, que l'on découvre parmi les Étoiles fixes, sur l'horizon de Paris. Observées à l'Observatoire de la Marine, avec differens instrumens". Histoire de l'Académie Royale des Sciences. Avec les Mémoires de Mathématique & de Physique, pour la même Année, Tirés des Registres de cette Académie. Paris, FR: L'Imprimerie Royale. année 1774: 435. Retrieved 7 January 2021 – via Gallica (Archives de l'Académie des sciences).

[SEDS-Messier-1771-4] "Charles Messier's original catalog of 1771". Students for the Exploration and Development of Space (SEDS). 15 June 2007. Retrieved 5 November 2015.

[Britannica-5] "Messier catalog". Encyclopædia Britannica. Retrieved 27 May 2015.

[6] Gingerich, Owen (September 1953). "Messier and his catalogue II". Sky & Telescope. No. 142 – via archive.org.

[7] Messier, Charles (1780). "Catalogue des Nébuleuses et des amas d'Étoiles, Observées à Paris, par M. Messier, à l'Observatoire de la Marine, hôtel de Clugni, rue des Mathurins". Connoissance des Temps. Paris, FR: L'Imprimerie Royale. pour l'année commune 1783: 225–249, & 408 – via Gallica (Archives de l'Académie des sciences).

[Messier-1781-Connaissance-1784-8] Messier, Charles (1781). "Catalogue des Nébuleuses et des amas d'Étoiles, Observées à Paris, par M. Messier, à l'Observatoire de la Marine, hôtel de Clugni, rue des Mathurins". Connoissance des Temps, ou Connoissance des mouvemens célestes. Paris, FR: L'Imprimerie Royale. pour l'année bissextile 1784: 227–267. Bibcode:1781cote.rept..227M – via Gallica.

[9] "The Messier Catalogue". SEDS Messier Database. SEDS. 27 May 2015.

[10] Moore, Patrick (1979). The Guinness Book of Astronomy. Guinness Superlatives. ISBN 978-0-900424-76-2 – via archive.org.

[11] Moore, Patrick (1979). The Guinness Book of Astronomy. Guinness Superlatives. ISBN 0-900424-76-1 – via archive.org.

[12] Frommert, Hartmut (10 May 1995). "Messier 102". MSFC X-Ray Astronomy (InterNetNews) (Press release). Retrieved 24 February 2019 – via SEDS.

[13] English, Neil (2018). Chronicling the Golden Age of Astronomy: A history of visual observing from Harriot to Moore. Springer. p. 91. ISBN 978-3319977072. Retrieved 9 October 2019.

[14] Finlay, W.H. (2003). Concise Catalog of Deep-sky Objects: Astrophysical information for 500 galaxies. Springer. ISBN 1-85233-691-9.

[15] "The Messier Marathon". Students for the Exploration and Development of Space (SEDS). 19 March 2013. Retrieved 17 May 2014.

[16] Stoyan, Ronald; Binnewies, Stefan; Friedrich, Susanne (2008). Atlas of the Messier Objects: Highlights of the Deep Sky. Cambridge University Press. ISBN 9783319977072.

[17] "Messier 1". SEDS Messier catalog. Retrieved 17 March 2014.

[18] "Messier 2". SEDS Messier catalog. Retrieved 17 March 2014.

[19] "Messier 3". SEDS Messier catalog. Retrieved 17 March 2014.

[20] "Messier 4". SEDS Messier catalog. Retrieved 17 March 2014.

[21] "Messier 5". SEDS Messier catalog. Retrieved 17 March 2014.

[22] "Messier 6". SEDS Messier catalog. Retrieved 17 March 2014.

[23] "Messier 7". SEDS Messier catalog. Retrieved 17 March 2014.

[24] Stoyan, Ronald (2008). Atlas of the Messier Objects: Highlights of the Deep Sky. Cambridge University Press. p. 88. ISBN 978-0521895545.

[25] "Messier 9". SEDS Messier catalog. Retrieved 17 March 2014.

[26] "Messier 10". SEDS Messier catalog. Retrieved 17 March 2014.

[27] O'Meara, Stephen James; Levy, David H. (1998), Deep-Sky Companions: The Messier Objects, Cambridge University Press, p. 65, ISBN 978-0521553322.

[28] "Messier 12". SEDS Messier catalog. Retrieved 17 March 2014.

[29] "Messier 13". SEDS Messier catalog. Retrieved 17 March 2014.

[30] "Messier 14". SEDS Messier catalog. Retrieved 17 March 2014.

[31] "Messier 15". SEDS Messier catalog. Retrieved 17 March 2014.

[32] "Messier 16". SEDS Messier catalog. Retrieved 17 March 2014.

[33] "Messier 17". SEDS Messier catalog. Retrieved 17 March 2014.

[34] "Messier 18". SEDS Messier catalog. Retrieved 17 March 2014.

[35] "Messier 19". SEDS Messier catalog. Retrieved 17 March 2014.

[36] "Messier 20 (The Trifid Nebula)". Hubble's Messier Catalog. 6 October 2017. Retrieved 28 April 2022.

[37] "Messier 21". SEDS Messier catalog. Retrieved 17 March 2014.

[38] "Messier 22". SEDS Messier catalog. Retrieved 17 March 2014.

[39] Thompson, Robert; Thompson, Barbara (2007), Illustrated Guide to Astronomical Wonders: From Novice to Master Observer, DIY science, O'Reilly Media, Inc., p. 408, ISBN 978-0596526856

[French-40] French, Sue (July 2015). "Small Sagittarius star cloud: The Sagittarius Milky Way is host to dark nebulae and open clusters". Sky & Telescope. p. 56.

[41] "Messier 25". SEDS Messier catalog. Retrieved 17 March 2014.

[42] "Messier 26". SEDS Messier catalog. Retrieved 17 March 2014.

[43] "Messier 27". SEDS Messier catalog. Retrieved 17 March 2014.

[44] "Messier 28". SEDS Messier catalog. Retrieved 17 March 2014.

[45] "Messier 29". SEDS Messier catalog. Retrieved 17 March 2014.

[46] "Messier 30". SEDS Messier catalog. Retrieved 17 March 2014.

[47] "Messier 31". SEDS Messier catalog. Retrieved 17 March 2014.

[48] "Messier 32". SEDS Messier catalog. Retrieved 17 March 2014.

[49] "Messier 33". SEDS Messier catalog. Retrieved 17 March 2014.

[50] "Messier 34". SEDS Messier catalog. Retrieved 17 March 2014.

[51] "Messier 35". SEDS Messier catalog. Retrieved 17 March 2014.

[52] "Messier 36". SEDS Messier catalog. Retrieved 17 March 2014.

[53] "Messier 37". SEDS Messier catalog. Retrieved 17 March 2014.

[54] "Messier 38". SEDS Messier catalog. Retrieved 17 March 2014.

[55] "Messier 39". SEDS Messier catalog. Retrieved 17 March 2014.

[56] "Messier 40". SEDS Messier catalog. Retrieved 17 March 2014.

[57] "Messier 41". SEDS Messier catalog. Retrieved 17 March 2014.

[58] "Messier 42". SEDS Messier catalog. Retrieved 17 March 2014.

[59] "Messier 43". SEDS Messier catalog. Retrieved 17 March 2014.

[60] "Messier 44". SEDS Messier catalog. Retrieved 17 March 2014.

[61] "Messier 45". SEDS Messier catalog. Retrieved 17 March 2014.

[62] "Messier 46". SEDS Messier catalog. Retrieved 17 March 2014.

[63] Stoyan, Ronald (2008). Atlas of the Messier Objects: Highlights of the Deep Sky. Cambridge University Press. p. 195. ISBN 978-0521895545.

[64] "Messier 48". SEDS Messier catalog. Retrieved 17 March 2014.

[65] "Messier 49". SEDS Messier catalog. Retrieved 17 March 2014.

[66] "Messier 50". SEDS Messier catalog. Retrieved 17 March 2014.

[67] "Messier 51". SEDS Messier catalog. Retrieved 18 March 2014.

[68] "Messier 52". SEDS Messier catalog. Retrieved 18 March 2014.

[69] "Messier 53". SEDS Messier catalog. Retrieved 18 March 2014.

[70] "Messier 54". SEDS Messier catalog. Retrieved 18 March 2014.

[71] "Messier 55". SEDS Messier catalog. Retrieved 18 March 2014.

[72] "Messier 56". SEDS Messier catalog. Retrieved 18 March 2014.

[73] "Messier 57". SEDS Messier catalog. Retrieved 18 March 2014.

[74] "Messier 58". SEDS Messier catalog. Retrieved 18 March 2014.

[75] "Messier 59". SEDS Messier catalog. Retrieved 18 March 2014.

[76] "Messier 60". SEDS Messier catalog. Retrieved 18 March 2014.

[77] "Messier 61". SEDS Messier catalog. Retrieved 18 March 2014.

[78] "Messier 62". SEDS Messier catalog. Retrieved 18 March 2014.

[79] "Messier 63". SEDS Messier catalog. Retrieved 18 March 2014.

[80] "Messier 64". SEDS Messier catalog. Retrieved 18 March 2014.

[81] "Messier 65". SEDS Messier catalog. Retrieved 18 March 2014.

[82] "Messier 66". SEDS Messier catalog. Retrieved 18 March 2014.

[83] "Messier 67". SEDS Messier catalog. Retrieved 18 March 2014.

[84] "Messier 68". SEDS Messier catalog. Retrieved 18 March 2014.

[85] "Messier 69". SEDS Messier catalog. Retrieved 18 March 2014.

[86] "Messier 70". SEDS Messier catalog. Retrieved 18 March 2014.

[87] "Messier 71". SEDS Messier catalog. Retrieved 18 March 2014.

[88] "Messier 72". SEDS Messier catalog. Retrieved 18 March 2014.

[89] "Messier 73". SEDS Messier catalog. Retrieved 18 March 2014.

[90] "Messier 74". SEDS Messier catalog. Retrieved 18 March 2014.

[91] "Messier 74 Phantom Galaxy". 24 July 2015. Retrieved 20 April 2020.

[92] "Messier 75". SEDS Messier catalog. Retrieved 18 March 2014.

[93] "Messier 76". SEDS Messier catalog. Retrieved 18 March 2014.

[94] "Messier 77". SEDS Messier catalog. Retrieved 18 March 2014.

[95] "Messier 78". SEDS Messier catalog. Retrieved 18 March 2014.

[96] "Messier 79". SEDS Messier catalog. Retrieved 18 March 2014.

[97] "Messier 80". SEDS Messier catalog. Retrieved 18 March 2014.

[98] "Messier 81". SEDS Messier catalog. Retrieved 18 March 2014.

[99] "Messier 82". SEDS Messier catalog. Retrieved 18 March 2014.

[100] "Messier 83". SEDS Messier catalog. Retrieved 18 March 2014.

[101] "Messier 84". SEDS Messier catalog. Retrieved 18 March 2014.

[102] "Messier 85". SEDS Messier catalog. Retrieved 18 March 2014.

[103] "Messier 86". SEDS Messier catalog. Retrieved 18 March 2014.

[104] "Messier 87". SEDS Messier catalog. Retrieved 18 March 2014.

[105] "Messier 88". SEDS Messier catalog. Retrieved 18 March 2014.

[106] "Messier 89". SEDS Messier catalog. Retrieved 18 March 2014.

[107] "Messier 90". SEDS Messier catalog. Retrieved 18 March 2014.

[108] "Messier 91". SEDS Messier catalog. Retrieved 18 March 2014.

[109] "Messier 92". SEDS Messier catalog. Retrieved 18 March 2014.

[110] "Messier 93". SEDS Messier catalog. Retrieved 18 March 2014.

[111] "Messier 94". SEDS Messier catalog. Retrieved 18 March 2014.

[112] "Messier 95". SEDS Messier catalog. Retrieved 18 March 2014.

[113] "Messier 96". SEDS Messier catalog. Retrieved 18 March 2014.

[114] "Messier 97". SEDS Messier catalog. Retrieved 18 March 2014.

[115] "Messier 98". SEDS Messier catalog. Retrieved 18 March 2014.

[116] "Messier 99". SEDS Messier catalog. Retrieved 18 March 2014.

[117] "Messier 100". SEDS Messier catalog. Retrieved 18 March 2014.

[118] "Messier 101". SEDS Messier catalog. Retrieved 18 March 2014.

[119] "Messier 102". SEDS Messier catalog. Retrieved 28 December 2016.

[120] "Messier 103". SEDS Messier catalog. Retrieved 18 March 2014.

[121] "Messier 104". SEDS Messier catalog. Retrieved 18 March 2014.

[122] "Messier 105". SEDS Messier catalog. Retrieved 18 March 2014.

[123] "Messier 106". SEDS Messier catalog. Retrieved 18 March 2014.

[124] "Messier 107". SEDS Messier catalog. Retrieved 18 March 2014.

[125] "Messier 108". SEDS Messier catalog. Retrieved 18 March 2014.

[126] "Messier 109". SEDS Messier catalog. Retrieved 18 March 2014.

[127] "Messier 110". SEDS Messier catalog. Retrieved 18 March 2014.

Messier objects
List	M1 M2 M3 M4 M5 M6 M7 M8 M9 M10 M11 M12 M13 M14 M15 M16 M17 M18 M19 M20 M21 M22 M23 M24 M25 M26 M27 M28 M29 M30 M31 M32 M33 M34 M35 M36 M37 M38 M39 M40 M41 M42 M43 M44 M45 M46 M47 M48 M49 M50 M51 M52 M53 M54 M55 M56 M57 M58 M59 M60 M61 M62 M63 M64 M65 M66 M67 M68 M69 M70 M71 M72 M73 M74 M75 M76 M77 M78 M79 M80 M81 M82 M83 M84 M85 M86 M87 M88 M89 M90 M91 M92 M93 M94 M95 M96 M97 M98 M99 M100 M101 M102 M103 Added M104 M105 M106 M107 M108 M109 M110
See also	Caldwell catalogue Catalogue of Nebulae and Clusters of Stars Herschel 400 Catalogue Index Catalogue New General Catalogue Revised New General Catalogue
Category Commons Portal

Authority control databases
National	Germany
Other	IdRef