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UKS 2323-326
UKS 2323-326 (not shown) is part of the local group, the Sculptor Group to be more specific.
Observation data
Right ascension	23^h 23^m 47.6^s
Declination	−32° 39′ 57″
Distance	4.2 million ly
Characteristics
Type	Dwarf irregular galaxy
Number of stars	~6x10^5
Other designations
UGCA 4383, MCG -05-55-012, PGC 71431^[1]

UKS 2323-326 is a very low mass and faint dwarf irregular galaxy located in the local group at a distance of 1.3 mpc from Earth.^[2] The galaxy is a member of the Sculptor group.^[3] The galaxy has a young stellar population that recently (~100 mya^[3]) formed defined red giant branch (RGB) stars but no significant amount of H ll emissions. It also has no detected hot dust or polycyclic aromatic hydrocarbons.^[4]^[5]

Structure and composition

The galaxy shape is amorphous but surprisingly circular. The central region of UKS 2323-326 has a concentration of several tens of bright stars. Farther from the center of the galaxy are fewer bright stars and more faint stars.^[3] There are a number of red giant branch (AGB) stars that exist in UKS 2323-326 and a lack of H II regions.^[4]

References

^ "UKS 2323-326". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2025-04-21.
^ "UKS 2323-326". spider.seds.org. Retrieved 2025-04-07.
^ ^a ^b ^c Lee, Myung Gyoon; Byun, Yong-Ik (1999-08-01). "Stellar Populations of the Dwarf Galaxy UKS 2323-326 in the Sculptor Group". The Astronomical Journal. 118 (2): 817–825. arXiv:astro-ph/9905061. Bibcode:1999AJ....118..817L. doi:10.1086/300989. ISSN 0004-6256.
^ ^a ^b Gullieuszik, M.; Greggio, L.; Held, E. V.; Moretti, A.; Arcidiacono, C.; Bagnara, P.; Baruffolo, A.; Diolaiti, E.; Falomo, R.; Farinato, J.; Lombini, M.; Ragazzoni, R.; Brast, R.; Donaldson, R.; Kolb, J. (2008-05-01). "Resolving stellar populations outside the Local Group: MAD observations of UKS 2323-326". Astronomy & Astrophysics. 483 (1): L5 – L8. arXiv:0803.3728. Bibcode:2008A&A...483L...5G. doi:10.1051/0004-6361:200809631. ISSN 0004-6361.
^ Longmore, A. J.; Hawarden, T. G.; Webster, B. L.; Goss, W. M.; Mebold, Ulrich (1978-05-01). "Two new dwarf galaxies in the Local Group: UKS 1927 – 177 and UKS 2323 – 326". Monthly Notices of the Royal Astronomical Society. 183 (1): 97P – 100P. doi:10.1093/mnras/183.1.97P. ISSN 0035-8711.

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