NGC 2998 is a barred spiral galaxy located in the constellation Ursa Major. [5] It is 195 million light-years (59.7 megaparsecs) away from the Earth. [3] It is an intermediate spiral galaxy. [5] Its stellar mass is about that of the Milky Way. [6]

NGC 2998 是一个位于 大熊座 的 棒旋星系 和 中間螺旋星系，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 （英语：NGC 3006） 、 NGC 3008 等星系 [7][6]。

NGC 2998 is a Intermediate Spiral Galaxy in the Ursa Major constellation. NGC 2998 is situated north of the celestial equator and, as such, it is more easily visible from the northern hemisphere. Given its B magnitude of 13.3, NGC 2998 is visible with the help of a telescope having an aperture of 10 inches (250mm) or more.

NGC 2998 est une galaxie spirale intermédiaire située dans la constellation de la Grande Ourse. Sa vitesse par rapport au fond diffus cosmologique est de 5 000 ± 15 km/s, ce qui correspond à une distance de Hubble de 73,8 ± 5,2 Mpc (∼241 millions d' al) 1.

2014年9月20日 · NGC 2998 is the major galaxy in a group of 6 to 8 galaxies about 220 to 230 million light-years distant that sits between the feet of Ursa Major. It is a huge spiral. Assuming 230 million light-years it is some 230,000 light-years across. It is classed as SAB (rs)c by NED and simply as Sc by the NGC project.

The largest galaxy, the beautiful spiral NGC 2998, spans 2.5 arc-minutes in our apparent view, which corresponds to a large diameter of 140,000 light years. Our view is about 30 degrees from edge-on. I love the intricate structure of this magnitude 13 galaxy disk, with a solid yellow central region, fragmented blue arms, and numerous star clouds.

NGC 2998 is a barred spiral galaxy located in the constellation Ursa Major. It is 195 million light-years away from the Earth. It is an intermediate spiral gala...

NGC 2998, Yeni Ümumi Kataloqda qeydə alınmış qalaktika. Göy üzündə Böyük Ayı bürcü istiqamətində yerləşir. SBc tipli qalaktikadır. İngilis astronomu Vilyam Herşel tərəfindən 1788-ci ildə 47.5 sm (18.7 inç) ölçülü reflektor vasitəsilə kəşf edilmişdir. [6]

2020年5月16日 · Physical Information: Based on a recessional velocity of 4785 km/sec, NGC 2998 is about 225 million light years away, in good agreement with redshift-independent distance estimates of 145 to 225 million light years.

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]。