M39, NGC7092


About this image

M39 is a loose, widely spaced open cluster in the constellation Cygnus. Quite close to Earth at about 800 light-years away, M39 has around 30 members and is two to three hundred million years old.

This picture is a combination of 33 dithered frames in BVR colors taken with the Mosaic camera at the WIYN 0.9-meter telescope on Kitt Peak, near Tucson, Arizona, on the night of September 15th, 2003. This camera uses eight separate CCD detectors to cover a large area of the sky, but requires small dither motions between multiple exposures to fill in the gaps between the individual chips.

More: stars page, open clusters page, messier page.

Minimum credit line: Heidi Schweiker/WIYN and NOAO/AURA/NSF

Downloadable versions:
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1024 x 1024 400 kb color JPEG
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6600 x 6600 8.7 Mb color JPEG
6600 x 6600 42.6 Mb 8-bit color TIFF
6600 x 6600 127.6 Mb 24-bit color TIFF
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