Astronomy Picture of the Day ·
Dark Markings of the Sky
The Astronomy Picture of the Day for April 25, 2009 is “Dark Markings of the Sky,” an image. The picture is copyrighted by its creator (Credit & Copyright: Steve Cannistra ( StarryWonders )). The original explanation runs about 158 words.
From the explanation
“Based on wide field photographs, American astronomer Edward Emerson Barnard cataloged the dark markings of the sky in the early 20th century. Barnard’s markings are dark nebulae, interstellar clouds of obscuring gas and dust.”
— APOD editors, April 25, 2009
Read the full explanation on science.nasa.gov
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At a glance
- Date
- April 25, 2009
- Type
- Image
- Credit
- Credit & Copyright: Steve Cannistra ( StarryWonders )
- Copyright
- Copyrighted by the credited creator. Ask the copyright holder before reusing it.
- Explanation length
- About 158 words