Messier 81 spiral arm (WFPC2 image) ˜
This NASA/ESA Hubble Space Telescope image shows a small portion of one of Messier 81's spiral arms. It extends about 0.03 x 0.03 degrees. The supernova companion is the bluish star in the upper right hand corner. Dust lanes in the spiral arms of the galaxy are seen, as well as many other stars and a few star forming nebulae.
The image is composed of four separate exposures from the ESO/ST-ECF Archive through a blue filter, a green filter, a red filter and a near-infrared filter. The image was taken with Hubble's Wide Field and Planetary Camera 2.
Credit:ESA and Justyn R. Maund (University of Cambridge)
Acknowledgement: Bob Kirshner (Harvard University, USA)
About the Image
| Id: | heic0401d |
|---|---|
| Type: | Observation |
| Release date: | 7 January 2004, 15:00 |
| Related releases: | heic0401 |
| Size: | 1091 x 1091 px |
About the Object
| Name: | Messier 81, NGC 3031 |
|---|---|
| Type: | Local Universe : Galaxy : Type : Spiral |
| Distance: | 12 million light years |
| Constellation: | Ursa Major |
| Category: | Galaxies |
Wallpapers
Coordinates
| Position (RA): | 9 55 28.07 |
|---|---|
| Position (Dec): | 69° 2' 4.99" |
| Field of view: | 1.80 x 1.80 arcminutes |
| Orientation: | North is 117.4° left of vertical |
View in ESASky:
View in WorldWide Telescope:
Colours & filters
| Band | Wavelength | Telescope |
|---|---|---|
| Optical B | 439 nm |
Hubble Space Telescope
WFPC2 |
| Optical V | 555 nm |
Hubble Space Telescope
WFPC2 |
| Optical R | 675 nm |
Hubble Space Telescope
WFPC2 |
| Infrared I | 814 nm |
Hubble Space Telescope
WFPC2 |