NGC 6144
NGC 6144 is a globular cluster in the constellation Scorpius, located almost exactly 1° away from its brighter counterpart globular cluster Messier 4.[5] It is relatively close to and is partially obscured by the Rho Ophiuchi cloud complex.[4] The cluster has a very low core stellar density for a globular cluster and harbors a handful of X-ray radiation sources.[6]
| NGC 6144 | |
|---|---|
 NGC 6144, imaged by the Hubble Space Telescope | |
| Observation data (J2000 epoch) | |
| Class | XI[1] |
| Constellation | Scorpius |
| Right ascension | 16h 27m 14.1s[2] |
| Declination | –26° 01′ 29″[2] |
| Apparent magnitude (V) | +9.63[3] |
| Apparent dimensions (V) | 1.8′[1] |
| Physical characteristics | |
| Metallicity | = -1.81±0.12[4] dex |
![{\displaystyle {\begin{smallmatrix}\left[{\ce {Fe}}/{\ce {H}}\right]\end{smallmatrix}}}](../I/4c0821bd80891e071c08e7c7ee8e022baedf522c.svg)
References
- "VizieR Catalogue Database". Results for NGC 6144.
- "NASA/IPAC Extragalactic Database". Results for NGC 6144.
- "SIMBAD Astronomical Object Database". Results for NGC 6144.
- CCD PHOTOMETRY OF THE GALACTIC GLOBULAR CLUSTER NGC 6144
- "Clusters of Clusters: Globular Pairings". Sky & Telescope. 2006-07-28. Retrieved 2021-03-10.
- Lan, Shih-Hao; Kong, Albert K. H.; Verbunt, Frank; Lewin, Walter H. G.; Bassa, Cees; Anderson, Scott F.; Pooley, David (2010), "X-Ray and Optical Study of Low Core Density Globular Clusters Ngc6144 and E3", The Astrophysical Journal, 712: 380–391, arXiv:0907.0837, doi:10.1088/0004-637X/712/1/380, S2CID 11046118
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