File:Maffei 1 and 2.jpg
Jump to navigation
Jump to search
Size of this preview: 800 × 277 pixels. Other resolutions: 320 × 111 pixels | 640 × 222 pixels | 1,024 × 355 pixels | 1,280 × 444 pixels | 2,560 × 887 pixels | 11,795 × 4,087 pixels.
Original file (11,795 × 4,087 pixels, file size: 5.95 MB, MIME type: image/jpeg)
Captions
Add a one-line explanation of what this file represents
Captions
Summary[edit]
| Description |
English: A mosaic of images from WISE in the constellation of Cassiopeia. This region contains a large star forming nebula within the Milky Way Galaxy, called IC 1805 (sometimes called the Heart Nebula), a portion of which is seen at the right of the image. IC 1805 is over 6 thousand light-years from earth. Also visible in this image are two nearby galaxies, Maffei 1 and Maffei 2. In visible light these galaxies are hidden by [[:Category:|dust]] in IC 1805 and were unknown until 1968 when Paolo Maffei found them using infra-red observations. Both galaxies contain billions of stars and are located some 10 million light-years away (well outside our own Milky Way Galaxy). Maffei 1 is the bluish elliptical object in the centre of the image. It is a Lenticular type galaxy, which has a disk-like structure and a central bulge but no spiral structure or appreciable dust content. Maffei 2 (to the upper left of Maffei 1) is a Spiral type galaxy that also has a disk shape, but with a bar-like central bulge and two prominent dusty spiral arms. |
| Date | |
| Source | NASA Image of the Day |
| Author | NASA/JPL-Caltech/WISE Team |
The image size is about 1.6 by 4.5 degrees (The full Moon is about 0.5 degrees across by comparison). Since this is an image of invisible infra-red light, blue is mapped to the WISE 3.4 & 4.6 micron channels and is dominated by star light. Green represents the WISE 12 micron channel, and red is the 22 micron channel, which are dominated by infra-red emission from warm interstellar dust.
Licensing[edit]
|
This file is in the public domain in the United States because it was solely created by NASA. NASA copyright policy states that "NASA material is not protected by copyright unless noted". (See Template:PD-USGov, NASA copyright policy page or JPL Image Use Policy.) |  |
 |
Warnings:
|
| Annotations | This image is annotated: View the annotations at Commons |
File history
Click on a date/time to view the file as it appeared at that time.
| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 12:01, 9 March 2010 | | 11,795 × 4,087 (5.95 MB) | Originalwana (talk | contribs) | {{Information |Description={{en|1=A mosaic of images from WISE in the constellation of Cassiopeia. This region contains a large star forming [[:Ca |
You cannot overwrite this file.
File usage on Commons
The following 2 pages use this file:
File usage on other wikis
The following other wikis use this file:
- Usage on ar.wikipedia.org
- Usage on de.wikipedia.org
- Usage on en.wikipedia.org
- Usage on he.wikipedia.org
- Usage on hu.wikipedia.org
- Usage on it.wikipedia.org
- Usage on ja.wikipedia.org
- Usage on ka.wikipedia.org
- Usage on ko.wikipedia.org
- Usage on lb.wikipedia.org
- Usage on pl.wikipedia.org
- Usage on pt.wikipedia.org
- Usage on ru.wikipedia.org
- Usage on th.wikipedia.org
- Usage on tr.wikipedia.org
- Usage on uk.wikipedia.org
- Usage on zh.wikipedia.org
