Astronomy Picture of the Day ·
M39: Open Cluster in Cygnus
The Astronomy Picture of the Day for March 31, 2004 is “M39: Open Cluster in Cygnus,” an image. The picture is copyrighted by its creator (Credit & Copyright: Heidi Schweiker , WIYN , NOAO , AURA , NSF). The original explanation runs about 126 words.
From the explanation
“Lying just at the limit of human perception is a picturesque starfield containing one of the larger open clusters on the northern sky. Spanning an angle larger than the Moon , M39’s relatively few stars lie only about 800 light years distant toward the constellation of Cygnus .”
— APOD editors, March 31, 2004
Read the full explanation on science.nasa.gov
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At a glance
- Date
- March 31, 2004
- Type
- Image
- Credit
- Credit & Copyright: Heidi Schweiker , WIYN , NOAO , AURA , NSF
- Copyright
- Copyrighted by the credited creator. Ask the copyright holder before reusing it.
- Explanation length
- About 126 words