File:NGC 7662 cyan.jpg
Original file (1,500 × 1,305 pixels, file size: 247 KB, MIME type: image/jpeg)
Summary edit
The color of the nebula is very blue-green, corresponding to a wavelength of 500.7nm. This is an image by Adam Block of planetary nebula NGC 7662, the Blue Snowball, where the dominant light source is indeed the 500.7 forbidden oxygen emission.
Licensing edit
| Description |
This is an image of planetary nebula NGC 7662, the Blue Snowball. |
|---|---|
| Source |
The url for the image occurs on a website entitled, "APOD: Aurora Over Alaska (2010 Oct 06)" at url=http://asterisk.apod.com/viewtopic.php?f=9&t=21412. |
| Date |
October 6, 2010 |
| Author |
Adam Block, Caelum Observatory |
| Rationale |
No free licensed or public domain alternatives known to exist to show this image of planetary nebula NGC 7662, the Blue Snowball, including the extensive red region around the central star. |
| Permission |
Fair Use |
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File history
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 23:42, 23 February 2014 | | 1,500 × 1,305 (247 KB) | Marshallsumter (discuss | contribs) | The color of the nebula is very blue-green, corresponding to a wavelength of 500.7nm. This is an image by Adam Block of planetary nebula NGC 7662, the Blue Snowball, where the dominant light source is indeed the 500.7 forbidden oxygen emission. |
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