NGC 6888 – Cresent Nebula

NGC 6888

Crescent Nebula

What caused the Crescent Nebula?

_______

Looking like an emerging space cocoon, the Crescent Nebula, visible in the center of the above image, was created by the brightest star in its center. A leading progenitor hypothesis has the Crescent Nebula beginning to form about 250,000 years ago. At that time, the massive central star had evolved to become a Wolf-Rayet star (WR 136), shedding its outer envelope in a strong stellar wind, ejecting the equivalent of our Sun’s mass every 10,000 years. This wind impacted surrounding gas left over from a previous phase, compacting it into a series of complex shells, and lighting it up. The Crescent Nebula, also known as NGC 6888, lies about 4,700 light-years away in the constellation of Cygnus. Star WR 136 will probably undergo a supernova explosion sometime in the next million years.

The Crescent Nebula in Cygnus

_______

Technical card

_______

ObjectNGC 6888
Imaging telescopeExplore Scientific ED 102 APO FCD1
Imaging cameraZWO ASI 1600MM PRO
Mount SkyWatcher HEQ5 Pro
GuidingGuidescope 240mm, ZWO ASI 120MM
FilterAstronomik H-Alpha 6nm 1.25″, Astronomik OIII 6nm 1,25″
AccessoriesTS PHOTOLINE x0.80 Reducer/Korrektor
Integration12.9 hours, H-Alpha: 129×180″, OIII: 129×180″
Dates of recordingAugust 2018
AstroBinLink

CRESCENT NEBULA PRINT

Premium Gallery Prints on acrylic glass now available for Purchase.

Download my full resolution astrophotos here: www.astrobin.com/users/dotmod/
en_US
de_DE en_US