Sh2-155, Cave Nebula
This image was obtained with the wide-field view of the Mosaic camera on the Mayall 4-meter telescope at Kitt Peak National Observatory. Sh2-155, informally known as the "cave nebula," is dark cloud of gas embedded in a giant emission nebula. The top edge of the cloud is illuminated by several hot, massive (OB) stars that are part of the Cepheus OB3 assocation. The image was generated with observations in Hydrogen alpha (red), Sulphur [S II] (blue) and I (orange) filters. In this image, North is left, East is down.
Credit:T.A. Rector (University of Alaska Anchorage) and H. Schweiker (WIYN and NOIRLab/NSF/AURA)
About the Image
| Id: | noao-sh2-155 |
| Type: | Observation |
| Release date: | June 30, 2020, 9:34 p.m. |
| Size: | 8408 x 8190 px |
About the Object
| Name: | Cave Nebula, Sh2-155 |
| Constellation: | Cepheus |
| Category: | Nebulae |
Image Formats
Wallpapers
Coordinates
| Position (RA): | 22 57 36.89 |
| Position (Dec): | 62° 24' 37.20" |
| Field of view: | 36.48 x 35.39 arcminutes |
| Orientation: | North is 90.2° left of vertical |
View in WorldWide Telescope:
Colors & filters
| Band | Wave-length | Tele-scope |
|---|---|---|
| Optical Sll | 672 nm | Nicholas U. Mayall 4-meter Telescope Mosaic I |
| Optical I | 805 nm | Nicholas U. Mayall 4-meter Telescope Mosaic I |
| Optical Ha | 656 nm | Nicholas U. Mayall 4-meter Telescope Mosaic I |