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Contains:  NGC 2217
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NGC 2217 in CMa, 



    
        

            Andrew Lockwood
NGC 2217 in CMa
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NGC 2217 in CMa

Technical card

Imaging telescope or lens:ASA 16N

Imaging camera:QSI 683wsg-8

Mount:ASA Astrosysteme ASA DDM85

Guiding telescope or lens:ASA 16N

Focal reducer:ASA Astrosysteme ASA 3" Wynne Reducer Corrector 0,95x

Software:PixInsight

Filters:Astrodon 31mm Ha 5nmAstrodon 31mm RedAstrodon 31mm Blue


Dates:Nov. 6, 2019

Frames: 60x300"

Integration: 5.0 hours

Avg. Moon age: 9.23 days

Avg. Moon phase: 69.16%


Basic astrometry details

Astrometry.net job: 3048116

RA center: 6h 21' 39"

DEC center: -27° 13' 58"

Pixel scale: 0.380 arcsec/pixel

Orientation: 0.583 degrees

Field radius: 0.350 degrees


Resolution: 5416x3832

Locations: home, perth, western australia, Australia

Data source: Backyard

Description

NGC 2217 is an 11.7 magnitude barred spiral in Canis Major. About 65 million light years away, this is a gas rich galaxy with the outer halo apparently rotating in a retrograde motion (https://link.springer.com/chapter/10.1007/978-94-011-2434-8_78).
Some images claim that the outer shell of stars is bluish, indicating high star formation rates while the inner bar structure appears more yellow. These contrasts are difficult to see in this image, which was carefully colour balanced using G2V stars as a reference.

Comments

Author

alocky
Andrew Lockwood
License: None (All rights reserved)
830
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NGC 2217 in CMa, 



    
        

            Andrew Lockwood

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