Hemisphere:  Northern  ·  Constellation: Ursa Major (UMa)  ·  Contains:  M 101  ·  NGC 5457  ·  The star 81UMa  ·  The star 83UMa  ·  The star 84UMa  ·  The star 86UMa  ·  The star Alcor (80UMa)  ·  The star Mizar (ζUMa)
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Catalina between Pinwheel Galaxy and Mizar-Alcor, 



    
        

            José J. Chambó
Catalina between Pinwheel Galaxy and Mizar-Alcor
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Catalina between Pinwheel Galaxy and Mizar-Alcor

Technical card

Imaging telescopes or lenses: FSQ-106ED

Imaging cameras: STL-11000M


Dates:Jan. 17, 2016

Frames: 6x240" (24')

Integration: 24'

Avg. Moon age: 7.95 days

Avg. Moon phase: 56.02%


Basic astrometry details

Astrometry.net job: 973985

RA center: 13h 45' 24"

DEC center: +55° 20' 38"

Pixel scale: 14.044 arcsec/pixel

Orientation: -174.023 degrees

Field radius: 4.015 degrees


Resolution: 620x344

Locations: Mayhill - New Mexico (USA), Mayhill, New Mexico, United States

Description

Comet C/2013 US10 (Catalina) imaged on January 17th 2016, in conjunction with the Pinwheel Galaxy (M 101) at left, and the popular pair of stars Mizar and Alcor surrounded by a bright halo induced by the refractor telescope optics. The comet stands out in center with its greenish coma from which departs a bright dust tail arched toward down, and a long ionic tail more faint toward right, going above the couple of stars.

Posted in my Blog Cometografia.es

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Sky plot

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Histogram

Catalina between Pinwheel Galaxy and Mizar-Alcor, 



    
        

            José J. Chambó

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Comets Imaging