Stock photo description

One of the largest spheres in our Galaxy is giving valuable clues about the chemical composition of stars by its very shape. Planetary nebula Abell 39, now six light-years across, was once a sun-like star's outer atmosphere expelled thousands of years ago. The nearly perfect spherical nature of Abell 39 allows astronomers to accurately estimate how much relative material is actually absorbing and emitting light. Abell 39 lies about 7000 light years away, although several galaxies millions of light years away can be seen through and around the nebula.

Image taken with a Canon EOS 20Da camera in prime focus of a professional reflector-teleskope at 1290mm f/5.1. Exposure time is 185 minutes ! This is a very deep and real image, so the "noise" in background is no noise, these are very very dim stars again. The image is not overprocessed and sharp. See the spikes on the very bright stars.

Abell 39

Size	PixelsInches		Credits$ USD
XSmall	434 x 276 px @ 72 dpi 6.0" × 3.8" @ 72 dpi	77.24 KB	$2.00 USD 1 Credits
Small	867 x 554 px @ 72 dpi 12.0" × 7.7" @ 72 dpi	240.16 KB	$8.00 USD 4 Credits
Medium	1734 x 1107 px @ 300 dpi 5.8" × 3.7" @ 300 dpi	712.37 KB	$13.00 USD 7 Credits
Large	3393 x 2167 px @ 300 dpi 11.3" × 7.2" @ 300 dpi	1.99 MB	$19.00 USD 10 Credits

Stock photo details

Contributor:	knickohr view portfolio
Keywords:	Star, Star Field, Space, Night, Sky, Star Shape, Planet, Nebula ...Show all keywords: 36 Constellation, spacescape, Distant, Astronomy, deep sky, Dark, Light, Nature Abstract, Landscapes, astrophotography, Medicine And Science, wide field, Nature, Sky Only, Multiple Exposure, Space Exploration, Nobody, Glowing, Looking, Backgrounds, Exploration, Black, Shiny, Science, Outdoors, Looking At Camera, Long Exposure, Science Abstract Wrong keywords? Tell us
Downloads:	6
Views:	544
Uploaded on:	05-11-08 © Thomas Tuchan