The Crescent Nebula (also known as NGC 6888, Caldwell 27, Sharpless 105) is an emission nebula in the constellation Cygnus, about 5000 light-years away from Earth. It was discovered by William Herschel in 1792. [2] .

Diese extremen Sterne „senden“ Gas aus und bilden dadurch diese Nebel. Das Gas breitet sich mit einer Geschwindigkeit von ca. 80km/s aus und kollidiert dabei mit interstellarer Materie. Die Größe des Nebels beträgt ca. 30LJ, die Entfernung zur Erde ca. 6000LJ. Das Alter wird auf 2 Mio. Jahre geschätzt. Ein schwieiges Objekt.

2000年7月13日 · The Hubble telescope has snapped a view of a stellar demolition zone in our Milky Way Galaxy: a massive star, nearing the end of its life, tearing apart the shell of surrounding material it blew off 250, 000 years ago with its strong stellar wind.

Explanation: NGC 6888, also known as the Crescent Nebula, is a about 25 light-years across blown by winds from its central, bright, massive star. A triumvirate of astroimagers ( Joe, …

Caldwell 27 (NGC 6888) also known as the Crescent Nebula is a diffuse nebula located within the constellation Cygnus. C27 is best viewed during Fall, is magnitude 7.4 *, and can be viewed with binoculars. It is 20 x 10' in size. For reference, the full moon is 30' (arc minutes) in size.

To locate the Crescent Nebula, look no further than the Swan in the sky. The constellation Cygnus is home to many astrophotography treasures including the massive North America Nebula, and the delicate Veil Nebula.

NGC6888 / C27 -- Sichelnebel / Crescent Nebel Celestial hemisphere: Northern · Constellation: Cygnus (Cyg) · Contains: Crescent Nebula · NGC 6888 View

C27 - The Crescent Nebula \ (also known as NGC 6888, Sharpless 105) i Distance: 5000 Light Years The Crescent Nebula is an emission nebula in the constellation Cygnus, about 5000 light-years away from Earth. It was discovered by William Herschel in 1792.

2018年10月13日 · The Crescent nebula is an emission nebula in the constellation Cygnus. It is also known as NGC6888, Caldwell 27 and Sharpless 105. In the center is a star that turned into a red giant about 250,000 to 400,000 years ago and started to eject its outer gas shells.

2024年9月10日 · The Crescent Nebula (also known as NGC 6888, Caldwell 27 and Sharpless 105) is an emission nebula in the constellation Cygnus, about 5000 light-years away from Earth. It was discovered by William Herschel in 1792.