Planetary Nebula Sh2-174

This image was obtained with the wide-field view of the Mosaic camera on the Mayall 4-meter telescope at Kitt Peak National Observatory. Sh2-174 is an unusual ancient planetary nebula. A planetary nebula is created when a low-mass star blows off its outer layers at the end of its life. The core of the star remains and is called a white dwarf. Usually the white dwarf can be found very near the center of the planetary nebula. But in the case of Sh2-174 it off to the right. (It is the very blue star near the center of the blue gas). This asymmetry is due to the planetary nebula's interaction with the interstellar medium that surrounds it. The image was generated with observations in the B (blue), I (orange), Hydrogen-alpha (red) and Oxygen [OIII] (blue) filters. In this image, North is up, East is to the left. This image was the subject of NOAO Press Release 13-01.

Credit:

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

About the Image

Id:noao1301a
Type:Observation
Release date:Feb. 12, 2013
Related releases:noao1301
Size:6703 x 7795 px

About the Object

Name:Sh2-174
Constellation:Cepheus
Category:Nebulae

Image Formats

Large JPEG
19.3 MB
Screensize JPEG
313.4 KB

Zoomable


Wallpapers

1024x768
254.1 KB
1280x1024
370.2 KB
1600x1200
493.6 KB
1920x1200
573.5 KB
2048x1536
764.2 KB

Coordinates

Position (RA):23 49 15.03
Position (Dec):80° 58' 9.69"
Field of view:29.20 x 34.00 arcminutes
Orientation:North is 0.4° right of vertical


Colors & filters

BandWavelengthTelescope
Optical
Olll
499 nmNicholas U. Mayall 4-meter Telescope
Mosaic I
Optical
B
436 nmNicholas U. Mayall 4-meter Telescope
Mosaic I
Optical
I
805 nmNicholas U. Mayall 4-meter Telescope
Mosaic I
Optical
Ha
656 nmNicholas U. Mayall 4-meter Telescope
Mosaic I