NGC 2139 is a barred spiral galaxy in the constellation of Lepus. [4] It was discovered on November 17, 1784, by the German-English astronomer William Herschel. [7] The galaxy is located at a distance of 120.6 million light-years (36.98 Mpc) from the Sun and is receding with a radial velocity of 1,836 km/s. [3]

NGC 2139 是在 星座 天兔座 的一个 棒旋星系 [4]。 它于1784年11月17日由德裔英国天文学家 威廉·赫歇尔 发现 [7]。 这个星系距离约120.6 × 10 6 光年 （36.98 百万秒差距），并以1,836公里/秒的 径向速度 远离 太阳 [3]。

NGC 2139 is a Spiral Galaxy in the Lepus constellation. NGC 2139 is situated close to the celestial equator and, as such, it is at least partly visible from both hemispheres in certain times of the year. Given its visual magnitude of 11.71, NGC 2139 is visible with the help of a telescope having an aperture of 8 inches (200mm) or more.

NGC 2139 is an Spiral Galaxy located in the constellation of Lepus in the southern hemisphere. NGC 2139's distance from Earth is 87,977,421.32 light years. NGC 2139 is called NGC 2139 in the New General Catalogue (NGC).

2012年5月14日 · We report Chandra observations of the Scd galaxy NGC 2139, which is known to host a recently formed (10^7.6 yrs) nuclear star cluster. The star cluster is undetected in X-rays, with an upper bound on 0.5-7 keV luminosity of L_X < 7.1 x 10^37 erg/s.

NGC 2139 - Wikidata ... galaxy

Radial Profiles • summary from 1-D atlas • surface brightness and color profile plot • geometric and Fourier parameters plot • surface brightness ( B, V, R, I) • ellipticity ( B, V, R, I) • position angle ( B, V, R, I)

NGC 2139 是在 星座 天兔座 的一個 棒旋星系 [4]。 它於1784年11月17日由德裔英國天文學家 威廉·赫歇爾 發現 [7]。 這個星系距離約120.6 × 10 6 光年 （36.98 百萬秒差距），並以1,836公里/秒的 徑向速度 遠離 太陽 [3]。

NGC 2139 is a barred spiral galaxy located approximately 120.6 million light-years away in the constellation Lepus. It has an apparent size of about 2.4 × 1.9 arcminutes and an apparent magnitude of 11.6. Classified as type SAB (rs)cd, NGC 2139 exhibits a weak central bar structure, a somewhat defined inner ring, and loosely wound spiral arms.

2023年3月4日 · Measuring 2.4' with a magnitude of 11.6, NGC 2139 is a bulgeless barred spiral galaxy approximately 84 million light years away in the constellation of Lepus. According to researchers, the galaxy hosts a "nuclear-cluster-to-be" - a star cluster close to its centre that is younger and less massive than any nuclear star cluster studied so far.