NGC 6229 is a globular cluster located in the constellation Hercules. It is designated as GC(v)B in the galaxy morphological classification scheme and was discovered by the British astronomer William Herschel on 12 May 1787. NGC 6229 is located at about 100,000 light years away from Earth.[2][3][4][5]
| NGC 6229 | |
|---|---|
 NGC 6229 as seen through the Hubble Space Telescope | |
| Observation data (J2000 epoch) | |
| Class | VII |
| Constellation | Hercules |
| Right ascension | 16h 46m 58.8s |
| Declination | +47° 31′ 40″ |
| Apparent magnitude (V) | 9.4 |
| Apparent dimensions (V) | 4.50' |
| Physical characteristics | |
| Absolute magnitude | -8.06 |
| Metallicity | = -1.13±0.06[1] dex |
| Other designations | GCL 47 |
![{\displaystyle {\begin{smallmatrix}\left[{\ce {Fe}}/{\ce {H}}\right]\end{smallmatrix}}}](https://wikimedia.org/api/rest_v1/media/math/render/svg/4c0821bd80891e071c08e7c7ee8e022baedf522c)
It is an intermediate-metallicity globular cluster with two distinct generations of stars, and may be the remnant core of a spheroidal dwarf galaxy.[1]
See also
editReferences
edit- ^ a b Johnson, Christian I.; Caldwell, Nelson; Michael Rich, R.; Walker, Matthew G. (2017), "Light and Heavy Element Abundance Variations in the Outer Halo Globular Cluster NGC 6229", The Astronomical Journal, 154 (4): 155, arXiv:1709.00048, Bibcode:2017AJ....154..155J, doi:10.3847/1538-3881/aa86ac, S2CID 119517454
- ^ "Object No. 1 - NGC 6229". NASA/IPAC extragalactic database. NASA/IPAC. Retrieved 3 October 2015.
- ^ "Revised NGC Data for NGC 6229". Seds. Retrieved 3 October 2015.
- ^ "NGC NGC 6229 (= GCL 47)". cseligman. Retrieved 3 October 2015.
- ^ "NGC 6229". NGC/IC Project. Archived from the original on 20 May 2012. Retrieved 3 October 2015.
External links
edit
Media related to NGC 6229 at Wikimedia Commons
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