NGC 1491 is a faint emission nebula located about 9,800 light years away in the Perseus arm of our galaxy. At the core of the nebula is the O4 main sequence star BD+50 866, which is lighting up and eroding the surrounding dark gas and dust. Stellar wind from the star has formed a ...
NGC 1491 - Emission NebulaCarlosEH
PA 205 -NGC 128 Pln Neb UMA 11 12.1 202'' 3a 14 Owl Nebula;PK148+57.1 -NGC 129 Galaxy COM 10.1 13.6 9.4' SBb 6 Comae Berenices is 30' east -NGC 131 TYPE CON MAG S.B. SIZE Class ns bs SAC NOTES Galaxy COM 9.9 13.2 5.3' Sc SN 1967h;Norton-diff for small scope Galaxy ...
星云板 北天总集 北天45块星云部分,包括发射星云、反射星云及超新星遗迹,排除行星状星云。 总体来说,北天部分只有梅西耶编号和少部分NGC编号的星云(如面纱、雷神头盔、骷髅头等)才能在三四级光污染下,较小口径望远镜(<200mm)中给人眼前一亮的感觉。但也绝不是所谓“摄影-目视对比”网图所展示的,M42就像恒星周围...
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Historical Identification: Per Dreyer, NGC 1491 (= GC 793 = WH I 258, Engelhardt, 1860 RA 03 52 51, NPD 39 04.9) is "very bright, small, irregular figure, brighter middle, mottled but not resolved, star involved". Listed in LEDA as PGC 3517585 (and as a nebula), but a search for...
NGC1491 Emission Nebula in Perseus - posted in Experienced Deep Sky Imaging: This is an emission nebula in the constellation Perseus. The nebulas glow is caused by hot gas plasma that is excited by embedded energetic young stars including the central sta