Contains: M 101, NGC 5457
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M 101 (Multiwavelength composite image)

Technical card

Resolution: 3600x2428

Dates: Jan. 1, 2005March 20, 2012

Frames:
274x3600"
58x300" -30C

Integration: 278.8 hours

Avg. Moon age: 23.80 days

Avg. Moon phase: 38.04%

Bortle Dark-Sky Scale: 2.00

Mean SQM: 21.50

Astrometry.net job: 229844

RA center: 210.783 degrees

DEC center: 54.358 degrees

Pixel scale: 0.408 arcsec/pixel

Orientation: -179.639 degrees

Field radius: 0.246 degrees

Description

Exposure Times: X-ray: 274 hours; Optical 4.8 hours.

Color Code: X-ray (Purple); Optical (Cyan, Gold); Infrared (Red)

Credit: X-ray: NASA/CXC/SAO (Chandra Space Telescope); Optical: Detlef Hartmann (Earthbound Newtonian Telescope); Infrared: NASA/JPL-Caltech (Spitzer Space Telescope)

Comments

Author

DetlefHartmann
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M 101 (Multiwavelength composite image), DetlefHartmann