ngc 3741, ugc 6572, mcg +08-21-068, pgc 35878, sdss j113605.75+451702.9 [1] NGC 3741 is an irregular galaxy in the constellation Ursa Major . It was discovered by John Herschel on March 19, 1828. [ 4 ]

NGC 6572 is a planetary nebula in the constellation Ophiuchus. It was discovered in 1825 by the German astronomer Friedrich Georg Wilhelm von Struve. According to several sources such as Sky & Telescope, this object received the nicknames Blue Racquetball, Emerald Nebula, Green Nebula, and Turquoise Orb.

NGC 3741 Galaxy (UGC 6572) Updated : 04/02/2025. Introduction. NGC 3741 is a Galaxy located in the constellation of Ursa Major in the northern hemisphere. NGC 3741's distance from Earth is 10,600,082.28 light years. NGC 3741 is called NGC 3741 in …

ngc 6572 是一个行星状星云，视星等8.1，即使以业馀天文学家的小望远镜，它也是个足够明亮，可以轻松观测到的目标，因此很受业馀人士的注意。 它的位置在 蛇夫座 ，距离3,500光年，以低倍数观看时像一颗有颜色的恒星，但提高倍数就可以看出它的形状。

2010年12月13日 · The NASA/ESA Hubble Space Telescope has turned its eagle eye to the planetary nebula NGC 6572, a very bright example of these strange but beautiful objects. Planetary nebulae are created during the late stages of the evolution of certain stars that eject gas into space and emit intense ultraviolet radiation that makes the material glow.

2021年7月19日 · Our object for the 150th monthly edition of the Observer’s Challenge is the tiny, but bright, planetary nebula NGC 6572, variously nicknamed the Emerald Nebula, the Blue Racquetball, and the Turquoise Orb. These names highlight the range of hues perceived by different observers. The nebula is young, perhaps only a few thousand years old.

2014年10月1日 · Estimates of relative line intensities available in the literature and integrated Hβ fluxes of the planetary nebula NGC 6572 during the time covered by optical observations (1938–2013) are ...

100 years ago this object was described as one of the most curious objects in the heavens, a star surrounded by a bright green ellipse of fuzzy light. This was before much was really known about planetary nebula, but even today this object is a wonder. This object is two magnitudes brighter than M57 (the Ring Nebula) but 5 times smaller.

NGC 6505 是位於 天龍座 的一個 橢圓星系，哈伯序列分類為E/S0。 NGC 6505距離 銀河系 約6億800萬 光年，直徑約19萬光年。 NGC 6505是由 路易斯·斯威夫特 於1884年6月27日發現的 [4]。 2025年， 歐幾里得太空望遠鏡 發現NGC 6505周圍有一個完整的 愛因斯坦環 [5]。 ^ 跳转到： 1.0 1.1 1.2 1.3 1.4 1.5 Results for object NGC 6505. NASA/IPAC Extragalactic Database. NASA and Caltech. [11 February 2025].

NGC 6166 is an elliptical galaxy in the Abell 2199 cluster. It lies 490 million light years away in the constellation Hercules. The primary galaxy in the cluster, it is one of the most luminous galaxies known in terms of X-ray emissions. [2] NGC 6166 is a supermassive, type cD galaxy, with several smaller galaxies within its envelope. [3]