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Contains:  NGC 5195, Whirlpool galaxy, M 51, NGC 5194
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M51 enhanced with Hydrogen, 





    
        

            Andreas Dietz
M51 enhanced with Hydrogen

M51 enhanced with Hydrogen

Technical card

Resolution: 1026x1062

Dates:March 30, 2017Feb. 24, 2018

Frames:
B+W 486 UV/IR block: 314x30" ISO1600
Baader Planetarium Ha 36mm 7nm: 496x30" (gain: 270.00) -3C bin 1x1

Integration: 6.8 hours

Avg. Moon age: 5.65 days

Avg. Moon phase: 35.46%

Temperature: -8.00

Astrometry.net job: 1958856

RA center: 202.489 degrees

DEC center: 47.229 degrees

Pixel scale: 1.067 arcsec/pixel

Orientation: 357.681 degrees

Field radius: 0.219 degrees

Locations: Home Observatory, Regensburg, Bavaria, Germany

Data source: Backyard

Description

My whirlpool project is growing! Two weeks ago the first clear weather period since 6 months was exactly at waxing moon, and all winter objects were disappearing. So I decided to direct my 8 inch reflector to the few objects with at least a little narrowband portion, e.g. M51 and M82. It was quite surprising how many Ha regions in M51 popped up! Here I'd like to present the combination of my M51 RGB exposure from last year and the latest Ha exposure to you. As always without guiding...
Enjoy!

Comments

Author

dakloifarwa
Andreas Dietz
License: Attribution-ShareAlike Creative Commons
1480
Like

Revisions

  • M51 enhanced with Hydrogen, 





    
        

            Andreas Dietz
    Original
  • Final
    M51 enhanced with Hydrogen, 





    
        

            Andreas Dietz
    B

B

crop to same FOV as in the original image

Sky plot

Sky plot

Histogram

M51 enhanced with Hydrogen, 





    
        

            Andreas Dietz