Crescent, NGC 6888

This wide-field image of the Crescent Nebula was taken at the National Science Foundation's 0.9-meter telescope on Kitt Peak with the NOAO Mosaic CCD camera. Also known as NGC6888, the nebula is a shell of gas that is being energized by the strong stellar wind from the Wolf-Rayet star WR 136, the bright star at the center of the nebula. It is located in the constellation of Cygnus, the Swan. Wolf-Rayet stars are very hot, massive stars that are blowing off their outer layers. In this image north is down and east is to the right. This image was created by combining emission-line images in Hydrogen-alpha (red), Oxygen [O III] (blue) and Sulfur [S II] (yellow).

Credit:

T.A. Rector (NRAO/AUI/NSF and NOIRLab/NSF/AURA)

About the Image

Id:noao-04494
Type:Observation
Release date:April 1, 2003, 12:51 p.m.
Related announcements:noaoann03006
Size:8578 x 8205 px

About the Object

Name:NGC 6888, WR 136
Constellation:Cygnus
Category:Nebulae

Image Formats

Large JPEG
47.2 MB
Screensize JPEG
692.6 KB

Zoomable


Wallpapers

1024x768
553.8 KB
1280x1024
907.3 KB
1600x1200
1.3 MB
1920x1200
1.5 MB
2048x1536
2.0 MB

Coordinates

Position (RA):20 11 38.89
Position (Dec):38° 36' 44.98"
Field of view:60.73 x 58.09 arcminutes
Orientation:North is 89.8° right of vertical


Colors & filters

BandWavelengthTelescope
Optical
Olll
499 nmWIYN 0.9-meter Telescope
Mosaic 1
Optical
Sll
672 nmWIYN 0.9-meter Telescope
Mosaic 1
Optical
Ha
656 nmWIYN 0.9-meter Telescope
Mosaic 1