NGC 2998
| NGC 2998 | |
|---|---|
 SDSS拍摄的NGC 2998 | |
| 观测资料（J2000 历元） | |
| 星座 | 大熊座 |
| 赤经 | 09h 48m 43.630s[1] |
| 赤纬 | +44° 04′ 52.63″[1] |
| 红移 | 0.01591[2] |
| 径向速度 | 4732 ± 3 km/s[2] |
| 距离 | 195 Mly（59.7 Mpc）[3] |
| 视星等 (B) | 13.3[4] |
| 特征 | |
| 类型 | SAB(rs)c[5] |
| 角直径 (V) | 1.080′ × 0.562′[1] |
| 其他名称 | |
| NGC 2998、UGC 5250、MCG+07-20-051、PGC 28196[4][4] | |
NGC 2998是一个位于大熊座的棒旋星系和中间螺旋星系，质量略小于银河系，距离地球1.95亿光年[5][3][6]。NGC 2998属于NGC 2998星系群。该星系群还包括NGC 3002、NGC 3005、NGC 3006、NGC 3008等星系[7][6]。
参见
[编辑]- ^ 1.0 1.1 1.2 Skrutskie, Michael F.; Cutri, Roc M.; Stiening, Rae; Weinberg, Martin D.; Schneider, Stephen E.; Carpenter, John M.; Beichman, Charles A.; Capps, Richard W.; Chester, Thomas; Elias, Jonathan H.; Huchra, John P.; Liebert, James W.; Lonsdale, Carol J.; Monet, David G.; Price, Stephan; Seitzer, Patrick; Jarrett, Thomas H.; Kirkpatrick, J. Davy; Gizis, John E.; Howard, Elizabeth V.; Evans, Tracey E.; Fowler, John W.; Fullmer, Linda; Hurt, Robert L.; Light, Robert M.; Kopan, Eugene L.; Marsh, Kenneth A.; McCallon, Howard L.; Tam, Robert; Van Dyk, Schuyler D.; Wheelock, Sherry L. The Two Micron All Sky Survey (2MASS). The Astronomical Journal. 1 February 2006, 131: 1163–1183 [2022-06-19]. ISSN 0004-6256. doi:10.1086/498708. （原始内容存档于2022-04-02）.
- ^ 2.0 2.1 Ahn, C. P.; et al. The Ninth Data Release of the Sloan Digital Sky Survey: First Spectroscopic Data from the SDSS-III Baryon Oscillation Spectroscopic Survey. The Astrophysical Journal Supplement. 2009, 203 (2): 21. Bibcode:2012ApJS..203...21A. S2CID 20026118. arXiv:1207.7137
. doi:10.1088/0067-0049/203/2/21.
- ^ 3.0 3.1 Tully, R. Brent; Courtois, Hélène M.; Sorce, Jenny G. Cosmicflows-3. The Astronomical Journal. 2016, 152 (2): 21. Bibcode:2016AJ....152...50T. arXiv:1605.01765 . doi:10.3847/0004-6256/152/2/50. 50.
- ^ 4.0 4.1 4.2 [ NGC 2998] 请检查
|url=值 (帮助). SIMBAD. 斯特拉斯堡天文资料中心. - ^ 5.0 5.1 NED results for object NGC 2998. NASA/IPAC Extragalactic Database. [5 October 2018]. （原始内容存档于2018-09-19）.
- ^ 6.0 6.1 Paudel, Sanjaya; Sengupta, Chandreyee; Yoon, Suk-Jin; Chhatkuli, Daya Nidhi. MCG+07-20-052: Interacting Dwarf Pair in a Group Environment. The Astronomical Journal. 2020, 159 (4): 141. Bibcode:2020AJ....159..141P. S2CID 211258826. arXiv:2002.10076 . doi:10.3847/1538-3881/ab722f.
- ^ [ NAME NGC 2998 Group] 请检查
|url=值 (帮助). SIMBAD. 斯特拉斯堡天文资料中心. [2021-02-14].
外部链接
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