Emission Nebula NGC 1491
This image was obtained with the wide-field view of the Mosaic camera on the Mayall 4-meter telescope at Kitt Peak National Observatory. NGC 1491 is an emission nebula. It is glowing deep red because the hydrogen gas in the nebula is energized by hot, massive stars embedded within. These stars emit copious amounts of ultraviolet (UV) light that causes the gas to glow. The image was generated with observations in B (blue), I (orange) and Hydrogen-Alpha (red) filters. In this image, North is right, East is up.
Credit:T.A. Rector (University of Alaska Anchorage), H. Schweiker & S. Pakzad (NOIRLab/NSF/AURA)
About the Image
| Id: | noao-ngc1491 |
| Type: | Observation |
| Release date: | June 30, 2020, 9:34 p.m. |
| Size: | 6159 x 6126 px |
About the Object
Image Formats
Wallpapers
Coordinates
| Position (RA): | 4 3 34.05 |
| Position (Dec): | 51° 25' 24.49" |
| Field of view: | 26.87 x 26.71 arcminutes |
| Orientation: | North is 89.9° right of vertical |
View in WorldWide Telescope:
Colors & filters
| Band | Wave-length | Tele-scope |
|---|---|---|
| Optical B | 436 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 |