| NGC 2298 | |
|---|---|
 | |
| Observation data (J2000 epoch) | |
| Class | VI |
| Constellation | Puppis |
| Right ascension | 06h 48m 59.4s |
| Declination | −36° 00′ 19″ |
| Distance | 34.9 kly (10.7 kpc) |
| Apparent magnitude (V) | 9.3 |
| Physical characteristics | |
| Absolute magnitude | -5.85 |
| Metallicity | = -1.76 ± 0.14 [1] dex |
| Estimated age | 13.2±0.4 Gyr[2] |
| Other designations | Melotte 53 |
![{\displaystyle {\begin{smallmatrix}\left[{\ce {Fe}}/{\ce {H}}\right]\end{smallmatrix}}}](https://wikimedia.org/api/rest_v1/media/math/render/svg/4c0821bd80891e071c08e7c7ee8e022baedf522c)
NGC 2298 is a globular cluster in the southern constellation of Puppis. Discovered by James Dunlop on May 30, 1826, it is probably a former member of the disputed Canis Major Dwarf galaxy.[3]
The cluster is being disrupted by the galactic tide, trailing a long tidal tail.[4]
- ^ Baeza, Ian; Fernández-Trincado, José G.; Villanova, Sandro; Geisler, Doug; Minniti, Dante; Garro, Elisa R.; Barbuy, Beatriz; Beers, Timothy C.; Lane, Richard R. (2022), "APOGEE-2S Mg–Al anti-correlation of the metal-poor globular cluster NGC 2298", Astronomy & Astrophysics, 662: A47, arXiv:2204.09703, Bibcode:2022A&A...662A..47B, doi:10.1051/0004-6361/202243475, S2CID 248300230
- ^ Monty, Stephanie; Puzia, Thomas H.; Miller, Bryan W.; Carrasco, Eleazar R.; Simunovic, Mirko; Schirmer, Mischa; Stetson, Peter B.; Cassisi, Santi; Venn, Kim A.; Dotter, Aaron; Goudfrooij, Paul; Perina, Sibilla; Pessev, Peter; Sarajedini, Ata; Taylor, Matthew A. (2018), "The GeMS/GSAOI Galactic Globular Cluster Survey (G4CS). I. A Pilot Study of the Stellar Populations in NGC 2298 and NGC 3201", The Astrophysical Journal, 865 (2): 160, arXiv:1808.05271, Bibcode:2018ApJ...865..160M, doi:10.3847/1538-4357/aadb43, S2CID 119089142
- ^ NGC 2298 (seds.org)
- ^ Carballo-Bello, Julio A.; Martínez-Delgado, David; Navarrete, Camila; Catelan, Márcio; Muñoz, Ricardo R.; Antoja, Teresa; Sollima, Antonio (2017), "Tails and streams around the Galactic globular clusters NGC 1851, NGC 1904, NGC 2298 and NGC 2808", Monthly Notices of the Royal Astronomical Society, 474: 683–695, arXiv:1710.08927, Bibcode:2018MNRAS.474..683C, doi:10.1093/mnras/stx2767