NGC 4999 is a barred spiral galaxy located in the constellation Virgo, first discovered February 24, 1786 by astronomer William Herschel. [3] The galaxy is noted as a particularly bright ultraviolet light source – it is believed that its notable bar structure suppresses star formation, [4] indicating this ultraviolet light may possibly be due ...

NGC 4999 is a Spiral Galaxy in the Virgo constellation. NGC 4999 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 B magnitude of 13.5, NGC 4999 is visible with the help of a telescope having an aperture of 14 inches (350mm) or more.

NGC 4999 (UGC 8236 , MCG 0-34-10 , ZWG 16.12 , IRAS13069 + 0156 , PGC 45632 ) 是一个在室女座的Sb有棒螺旋星系。

NGC 4568 ─ 这是一对星系，在 室女座星团。 它们之间非常接近有可能即将发生碰撞，有时被称为"暹罗双胎" 保存您偏好的中文语言变体，以避免显示简繁混杂的内容，提供最佳的阅读体验。

NGC 4999 is a barred spiral galaxy located in the constellation Virgo, first discovered February 24, 1786 by astronomer William Herschel. The galaxy is noted as a particularly bright ultraviolet light source – it is believed that its notable bar structure suppresses star formation, indicating this ultraviolet light may possibly be due to a ...

2024年11月18日 · The SIMBAD astronomical database provides basic data, cross-identifications, bibliography and measurements for astronomical objects outside the solar system.

From Virginia Beach , NGC4999 is visible in the morning sky, becoming accessible around 22:34, when it reaches an altitude of 21° above your eastern horizon. It will then reach its highest point in the sky at 02:48, 54° above your southern horizon. It will be lost to dawn twilight around 06:14, 30° above your south-western horizon.

Bar Galaxies and Their EnvironmentsThe prints of the Palomar Sky Survey, luminosity classifications, andradial velocities were used to assign all northern Shapley-Ames galaxiesto either (1) field, (2) group, or (3) cluster environments. Thisinformation for 930 galaxies shows no evidence for a dependence of barfrequency on galaxy environment. This suggests that the formation of abar in a disk ...

NGC 4999 (također poznat kao IRAS 13069+0156, MCG 0-34-10, PGC 45632 i UGC 8236) je prečkasta spiralna galaksija koja je udaljena oko 260 miliona sg od Zemlje i nalazi se u sazviježđu Djevica. Najveći prečnik je 2,30 (174 hiljade sg) a najmanji 1,9 uglovnih minuta (144 hiljade sg).

NGC 4999 este o hi (21cm) source⁠ (d) situată în constelația Fecioara. [4][5][6] A fost descoperită în 24 februarie 1786 de către William Herschel. [7]