Silver Galactic Sliver
The Silver Sliver Galaxy — more formally known as NGC 891 — is shown in this striking image from the Mosaic instrument on the 4-meter Nicholas U. Mayall Telescope at Kitt Peak National Observatory, a Program of NSF’s NOIRLab. NGC 891 is a spiral galaxy that lies almost perfectly edge-on to us, leading to its elongated appearance and its striking resemblance to our home galaxy, the Milky Way, as seen from the Earth. Since NGC 891 is oriented edge-on, it’s great for investigating the galactic fountain model. When stellar winds and supernovae from the disk of a galaxy eject gas into the surrounding medium, it can create condensation that rains back down onto the disk. The condensed gas then provides new fuel for star formation. In addition to the portrait of NGC 891, this image is littered with astronomical objects near and far — bright foreground stars from our own galaxy intrude upon the view of NGC 891 and distant galaxies lurk in the background.
Credit:KPNO/NOIRLab/NSF/AURA
Acknowledgments: PI: M.T. Patterson (New Mexico State University)
Image processing: Travis Rector (University of Alaska Anchorage), Mahdi Zamani & Davide de Martin
About the Image
Id: | iotw2023a |
Type: | Observation |
Release date: | June 3, 2020, 5 a.m. |
Size: | 4179 x 3295 px |
About the Object
Image Formats
Wallpapers
Coordinates
Position (RA): | 2 22 32.05 |
Position (Dec): | 42° 20' 50.26" |
Field of view: | 18.23 x 14.38 arcminutes |
Orientation: | North is 90.0° right of vertical |
Colors & filters
Band | Wave-length | Tele-scope |
---|---|---|
Optical U | 355 nm | Nicholas U. Mayall 4-meter Telescope Mosaic I |
Optical B | 438 nm | Nicholas U. Mayall 4-meter Telescope Mosaic I |
Optical R | 651 nm | Nicholas U. Mayall 4-meter Telescope Mosaic I |
Optical H-alpha | 657 nm | Nicholas U. Mayall 4-meter Telescope Mosaic I |