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Contains:  NGC 5195, Whirlpool galaxy, M 51, NGC 5194
Getting plate-solving status, please wait...
M 51 in One Shot Color + Ha, 





    
        

            Alex Roberts
M 51 in One Shot Color + Ha

Technical card

Resolution: 3174x1972

Dates:March 30, 2019March 31, 2019

Frames:
Baader H-Alpha 36mm 7nm: 25x420" (gain: 16.00) -20C bin 1x1
Baader UV-IR-CUT Filter: 87x160" (gain: 10.00) -20C bin 1x1

Integration: 6.8 hours

Darks: ~37

Flats: ~40

Bias: ~100

Avg. Moon age: 24.67 days

Avg. Moon phase: 24.51%

Bortle Dark-Sky Scale: 3.00

Temperature: 7.50

Astrometry.net job: 2625390

RA center: 202.473 degrees

DEC center: 47.197 degrees

Pixel scale: 0.646 arcsec/pixel

Orientation: 63.057 degrees

Field radius: 0.335 degrees

Locations: Dewey AZ Home, Dewey, Arizona, United States; Alamo Lake State Park, Wenden, AZ, United States

Data source: Traveller

Description

This is another attempt to combine one shot color data (QHY183C) with mono Ha (QHY183M). I'm trying this "cheat" on some galaxies basically because I'm lazy, and want to take an easier route than LRGBHa shooting and processing. I think this approach works well enough, but what do you think? Would LRGBHa produce that much better results to justify the extra time and processing workload?

The OSC data (QHY183C) was captured at Alamo Lake State Park here in Arizona, which has fantastic dark skies. The mono Ha (QHY183M) was captured at my home in Dewey AZ.

I would appreciate your feedback.

Comments

Author

Arcturus19
Alex Roberts
License: None (All rights reserved)
3480
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  • Final
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M 51 in One Shot Color + Ha, 





    
        

            Alex Roberts