Sharpless 2-188 (Sh2-188)

This image shows off the impressive imaging capabilities of the new CCD detectors in the Mosaic 1.1 camera on the Mayall 4-meter telescope at Kitt Peak National Observatory. The image is of Sharpless 2-188 (Sh2-188), an unusual planetary nebula located in the constellation Cassiopeia. The expanding gas from the planetary nebula is colliding with ambient gas in the interstellar medium. The nebula is nearly circular in shape but is much brighter to the southeast (lower left) because the central star is moving rapidly in that direction. Faint wisps of gas can also be seen in the opposite direction. The image was generated with deep observations in the Hydrogen alpha filter (red) and the Oxygen [OIII] filter (cyan). In this image, North is up and East is to the left.

Credit:

T.A. Rector/University of Alaska Anchorage, H. Schweiker/WIYN and NOIRLab/NSF/AURA

About the Image

Id:noao-sh2-188
Type:Observation
Release date:June 30, 2020, 9:34 p.m.
Size:4891 x 3834 px

About the Object

Name:Sh2-188
Constellation:Cassiopeia
Category:Nebulae

Image Formats

Large JPEG
9.0 MB
Screensize JPEG
327.6 KB

Zoomable


Wallpapers

1024x768
372.2 KB
1280x1024
549.2 KB
1600x1200
742.9 KB
1920x1200
872.9 KB
2048x1536
1.1 MB

Coordinates

Position (RA):1 30 54.51
Position (Dec):58° 32' 34.94"
Field of view:21.33 x 16.72 arcminutes
Orientation:North is 0.2° right of vertical


Colors & filters

BandWavelengthTelescope
Optical
Olll
499 nmNicholas U. Mayall 4-meter Telescope
Mosaic 1
Optical
Ha
656 nmNicholas U. Mayall 4-meter Telescope
Mosaic 1