NGC 2865 is an isolated [4] elliptical galaxy in the equatorial constellation of Hydra. [6][7][3] The core region of the galaxy shows a kinematically distinct component showing indications of a recent accretion or merger event that led to a burst of star formation around the nucleus.

NGC 2865 是一個在天球上位於 長蛇座 的 橢圓星系，距離地球超過1億光年。該星系於1835年由天文學家 約翰·赫歇爾 發現 [2][3][1]。 NGC 2865在橢圓星系中是相對較年輕的。該星系擁有一個快速旋轉的盤面，並且內部充滿恆星和富含金屬的氣體。因為NGC 2865的年輕恆星在橢圓星系中不尋常地多，天文學家推 ...

2015年4月17日 · NGC 2865, however, is relatively youthful and dynamic, with a rapidly rotating disk full of young stars and metal-rich gas. For an elliptical galaxy it contains an unusually high number of young stars — suggesting that a galaxy-wide …

6 天之前 · NGC 2865 (NGC2865) is a galaxy that has a distance from Earth of 90,286,608.47 light years. It can be found in the constellation of Hydra.

2015年4月13日 · NGC 2865 lies just over 100 million light-years away in the constellation of Hydra (The Sea Serpent). Credit: ESA/Hubble & NASA; Acknowledgement: Judy Schmidt This Hubble image of the week shows elliptical galaxy NGC 2865, which is located roughly 100 million light-years from Earth.

The distinctionamong Pec objects between the YP family (NGC 2865 type), and the NP one (NGC 3923 type), is statistically supported, and generally confirmed inspecific cases.Based in part on observations collected at the Observatoire deHaute-Provence.Table 4 is only available in electonic form at the CDS via anonymous ftpto cdsarc.u-strasbg.fr ...

We report on the discovery of a rapidly corotating stellar and gas component in the nucleus of the shell elliptical NGC 2865. The stellar component extends ~ 0.51 h 100 −1 kpc along the major axis, and shows depressed velocity dispersion and absorption-line profiles skewed in the opposite sense to the mean velocity.

NGC 2865在椭圆星系中是相对较年轻的。该星系拥有一个快速旋转的盘面，并且内部充满恒星和富含金属的气体。因为NGC 2865的年轻恒星在椭圆星系中不寻常地多，天文学家推论在约10亿年前该星系发生过 星暴 事件。并且该事件是NGC 2865的前身星系和另一个螺旋星系合并所引发 …

2015年4月13日 · NGC 2865, however, is relatively youthful and dynamic, with a rapidly rotating disc full of young stars and metal-rich gas. For an elliptical galaxy it contains an unusually high number of young stars — suggesting that a galaxy-wide …

2023年5月9日 · NGC 2865 是一个在天球上位于 长蛇座 的 椭圆星系，距离地球超过1亿光年。 该星系于1835年由天文学家 约翰·赫歇尔 发现 [2][3][1]。