The open cluster NGC 6618 lies embedded in the nebulosity and causes the gases of the nebula to shine due to radiation from these hot, young stars; however, the actual number of stars in the nebula is much higher – up to 800, 100 of spectral type earlier than B9, and 9 of spectral type O, [citation needed] plus over a thousand stars in ...

2015年4月6日 · It shows the dusty, rosy central parts of the famous star-forming region in fine detail. Image: ESO Three-colour composite image of the Omega Nebula (Messier 17, or NGC 6618), based on images obtained with the EMMI instrument on the ESO 3.58-metre New Technology Telescope at the La Silla Observatory. North is down and East is to the right in ...

A star chart of M17’s location. Stellarium. Designation: Messier 17, NGC 6618 Common Name: Omega Nebula, Swan Nebula Object Type: Emission nebula with open cluster Constellation: Sagittarius Distance: 5,500 light-years Apparent Magnitude: +6.0 Apparent Size: 20 x 15 arc minutes In late May of 2017, I set up my refractor telescope on the far side of my backyard for a low view of the ...

M 16 - Omega Nebula (NGC 6618) Messier 17 or M17 (also designated NGC 6618) is a nebula and star cluster in the constellation Sagittarius. It has an apparent visual magnitude of 7 and its angular diameter is 11 arc-minutes. M17 lies at an estimated distance of 5000 light years. The Equinox 2000 coordinates are RA= 18h 20.8m, Dec= -16° 11 ...

NGC 6618 is an open galactic cluster surrounded by nebula known as Omega Nebula, Swan Nebula, Checkmark Nebula, Messier 17 or M17. The nebula is an H II region. The M17 complex is a molecular cloud surrounding M17 nebula and is located in the Sagittarius spiral arm (Elmegreen et al. 1979; Reid et al. 2019).

Messier 17 (NGC 6618), also known as the Omega Nebula, is a diffuse nebula located in the constellation Sagittarius, in the Sagittarius Arm of the Milky Way Galaxy in the Local Group of galaxies.M17 is 5500 light years away from Earth.

2020年6月30日 · The Omega Nebula, M17 (NGC 6618) The Omega Nebula, M17 (NGC6618), as seen by the KPNO 0.9-meter telescope in 1993 (true color CCD image). M17 is a bright nebula with lanes of opaque dust; it is also referred to as the Swan Nebula and the Horseshoe Nebula. M17 is about 5700 light-years away in the direction of Sagittarius, and contains about 800 ...

It is located in the Milky Way region near the constellation Scutum, but actually belongs to the constellation Sagittarius. This nebula is one of the brightest and largest star-forming regions of our Galaxy. M17 contains a 35 star Open Cluster named NGC 6618, however the entire nebula actually contains an estimated 800 stars.

Messier 17 or M17 (also designated NGC 6618) is a nebula and star cluster in the constellation Sagittarius. It has an apparent visual magnitude of 7 and its angular diameter is 11 arc-minutes. M17 lies at an estimated distance of 5000 light years. The Equinox 2000 coordinates are RA= 18h 20.8m, Dec= -16° 11´ which makes M17 best seen during ...

天鹅星云化学元素组成颜色图. 在第二个图中，不同的颜色代表星云中不同的元素所辐射出的光线。红色是来自于硫，绿色来自于氢，蓝色是由氧元素所发出的，所以她有可能是臭鸡蛋味的。