Carina III

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Carina III
Observation data
Constellation Carina
Right ascension 10:17:00
Declination -61:20:00
Distance 91,300 ly (28 kpc)
Characteristics
Type Dwarf galaxy

Carina III (Car III) is an ultra-faint satellite galaxy of the Milky Way located roughly 91,300 light years (28 kpc) away in the constellation of Carina. [1] It was discovered using data from the Magellanic Satellites Survey (MagLiteS). [2]

It is a dwarf galaxy with a very elongated and compact morphology. It is also a dark matter dominated galaxy. [3] While it is metal-rich compared to most dwarf galaxies with similar luminosities, it is much more metal-poor compared to star clusters of similar luminosities. [4]

Galactic neighborhood

It is a member of the local group being a satellite galaxy to the Milky Way. It is located close to another satellite galaxy, Carina II, with the smallest known physical separation among galaxies in the local group. However they are unlikely to be a bounded pair. Both galaxies however may be associated with the Large Magellanic Cloud (LMC) and possibly satellite to it. [4]

References

  1. ↑ "cariii [BRITE Constellation Wiki]". brite-wiki.astro.uni.wroc.pl. Retrieved 2025-12-27.
  2. ↑ Torrealba, G.; Belokurov, V.; Koposov, S. E.; Bechtol, K.; Drlica-Wagner, A.; Olsen, K. A. G.; Vivas, A. K.; Yanny, B.; Jethwa, P.; Walker, A. R.; Li, T. S.; Allam, S.; Conn, B. C.; Gallart, C.; Gruendl, R. A.; James, D. J.; Johnson, M. D.; Kuehn, K.; Kuropatkin, N.; Martin, N. F.; Martinez-Delgado, D.; Nidever, D. L.; Noël, N. E. D.; Simon, J. D.; Stringfellow, G. S.; Tucker, D. (April 2018). "Discovery of two neighbouring satellites in the Carina constellation with MagLiteS". Monthly Notices of the Royal Astronomical Society. 475 (4): 5085. arXiv: 1801.07279 . Bibcode:2018MNRAS.475.5085T. doi: 10.1093/mnras/sty170 . ISSN   0035-8711. Archived from the original on 2022-10-28.
  3. ↑ "Carina III". New Planetarium. Retrieved 2025-12-27.
  4. 1 2 Li, T. S.; Simon, J. D.; Pace, A. B.; Torrealba, G.; Kuehn, K.; Drlica-Wagner, A.; Bechtol, K.; Vivas, A. K.; van der Marel, R. P.; Wood, M.; Yanny, B.; Belokurov, V.; Jethwa, P.; Zucker, D. B.; Lewis, G. (2018-04-20). "Ships Passing in the Night: Spectroscopic Analysis of Two Ultra-faint Satellites in the Constellation Carina". The Astrophysical Journal. 857 (2): 145. doi: 10.3847/1538-4357/aab666 . ISSN   0004-637X.
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