Astronomy:NGC 6144
From HandWiki
Short description: Globular cluster in the constellation Scorpius
| 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 | [math]\displaystyle{ \begin{smallmatrix}\left[\ce{Fe}/\ce{H}\right]\end{smallmatrix} }[/math] = -1.81±0.12[4] dex |
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]
References
- ↑ 1.0 1.1 "VizieR Catalogue Database". Results for NGC 6144. http://vizier.cfa.harvard.edu/viz-bin/VizieR-5?-out.all=1&-source=VII/1B&-c=NGC+6144,rm=5.0.
- ↑ 2.0 2.1 "NASA/IPAC Extragalactic Database". Results for NGC 6144. http://ned.ipac.caltech.edu/cgi-bin/objsearch?objname=NGC+6144&extend=no&hconst=73&omegam=0.27&omegav=0.73&corr_z=1&out_csys=Equatorial&out_equinox=J2000.0&obj_sort=RA+or+Longitude&of=pre_text&zv_breaker=30000.0&list_limit=5&img_stamp=YES.
- ↑ "SIMBAD Astronomical Object Database". Results for NGC 6144. http://simbad.u-strasbg.fr/simbad/sim-id?Ident=NGC+6144&QueryType=ned.
- ↑ 4.0 4.1 CCD PHOTOMETRY OF THE GALACTIC GLOBULAR CLUSTER NGC 6144
- ↑ "Clusters of Clusters: Globular Pairings" (in en-US). 2006-07-28. https://skyandtelescope.org/observing/celestial-objects-to-watch/clusters-of-clusters-globular-pairings/.
- ↑ 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, doi:10.1088/0004-637X/712/1/380
External links
 |  |
