Contains:  NGC 281
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Pacman Nebula, 





    
        

            José J. Chambó
Pacman Nebula

Technical card

Resolution: 1200x800

Dates:Dec. 23, 2011Dec. 26, 2011Jan. 19, 2012Jan. 22, 2012

Frames: 110x210" ISO400

Integration: 6.4 hours

Darks: ~16

Flats: ~11

Bias: ~100

Avg. Moon age: 21.06 days

Avg. Moon phase: 6.03%

Bortle Dark-Sky Scale: 6.00

Mean SQM: 18.95

Mean FWHM: 4.53

Temperature: 7.75

Astrometry.net job: 125843

RA center: 13.225 degrees

DEC center: 56.628 degrees

Pixel scale: 4.525 arcsec/pixel

Orientation: 175.906 degrees

Field radius: 0.906 degrees

Locations: Vallés - Valencia (Spain), Vallés, Valencia, Spain

Data source: Unknown

Description

Placed into constellation of Cassiopeia near star Shedir, NGC 281 is a emission nebula colloquially named as Pacman Nebula because your resemblance with character of this videogame. Discovered by Barnard at 1883. Furthermore, it contains the open cluster IC 1590 whose brightest star HD 5005 is a multiple system formed by 5 stars with a separation between 1.4 and 15.7 arcseconds.

More info into the Blog  C O M E T O G R A F I A  (in Spanish)

This image was the  AAPOD on April 01, 2012

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Author

PepeChambo
José J. Chambó
License: Attribution-NonCommercial-NoDerivs Creative Commons
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Pacman Nebula, 





    
        

            José J. Chambó