738 Alagasta

738 Alagasta (/æləˈɡæstə/) is a main belt asteroid.[2] It was discovered from Heidelberg on 7 January 1913 by German astronomer Franz Kaiser. The asteroid was named in honor of Gau-Algesheim, previously Alaghastesheim, which is the home city of the discoverer's family.[3] This body is orbiting at a distance of 3.04 AU with a period of 5.29 years and an eccentricity of 0.055. The orbital plane is inclined at an angle of 3.53° to the plane of the ecliptic.[1]

738 Alagasta
Discovery
Discovered byFranz Kaiser
Discovery siteHeidelberg
Discovery date7 January 1913
Designations
(738) Alagasta
Pronunciation/æləˈɡæstə/
Named after
Gau-Algesheim
1913 QO
Orbital characteristics[1]
Epoch 31 July 2016 (JD 2457600.5)
Uncertainty parameter 0
Observation arc103.3 yr (37,720 d)
Aphelion3.2040 AU (479.31 Gm)
Perihelion2.8698 AU (429.32 Gm)
3.0369 AU (454.31 Gm)
Eccentricity0.055023
5.29 yr (1,933.1 d)
146.545°
0° 11m 10.428s / day
Inclination3.5344°
132.115°
41.826°
Earth MOID1.87517 AU (280.521 Gm)
Jupiter MOID1.76226 AU (263.630 Gm)
TJupiter3.236
Physical characteristics
Mean radius
31.395±0.6 km
18.86 h (0.786 d)[1]
0.0398±0.002[1]
10.13[1]

    Photometric measurements made of the asteroid during 2015 produced a light curve that showed a rotation period of 18.86±0.01 h with a brightness variation of 0.11 in magnitude.[2] The asteroid is roughly 63 km in diameter and has a low albedo.[1]

    See also

    References

    1. "JPL Small-Body Database Browser: 738 Alagasta (1913 QO)". Jet Propulsion Laboratory. Retrieved 6 May 2016.
    2. Garceran, Alfonso Carreno; et al. (January 2016), "Nineteen Asteroids Lightcurves at Asteroids Observers (OBAS) - MPPD: 2015 April - September", Bulletin of the Minor Planets Section of the Association of Lunar and Planetary Observers, 43 (1): 92–97, Bibcode:2016MPBu...43...92G.
    3. Schmadel, Lutz D. (2013), Dictionary of Minor Planet Names, Springer Berlin Heidelberg, p. 111, ISBN 9783662066157.


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