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Contains:  Bode's galaxy, Bode's nebulae, M 81, M81, NGC 3031
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M81 - CCD LRGB + color from ASI294, 


            Thomas Richter
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M81 - CCD LRGB + color from ASI294

Technical card

Dates:Jan. 14, 2018

Frames: 78x300"

Integration: 6.5 hours

Avg. Moon age: 27.21 days

Avg. Moon phase: 5.98% job: 1898315

RA center: 9h 55' 39"

DEC center: +69° 4' 11"

Pixel scale: 1.103 arcsec/pixel

Orientation: -87.765 degrees

Field radius: 0.634 degrees

Resolution: 3321x2461

Locations: Nürnberg, Nürnberg, Bayern, Germany


This image is a compartion to the previous picture of M81.
It shows the difference between a one shot camera like ASI294 and the classic LRGB procedure with a monocrome CCD camera.
All data were captured in Nürnberg (light polluted location).

Following data were processed:
- 09/29/2016:
Data only used for M81, not for stars
12x 300s (R,G,B), 24x 300s (L)

- 01/06/2018:
Data only used for M81, not for stars
18x 300s (L)

- 01/14/2018:
Data used for stars
41x 300s Color with ASI294



Thomas Richter
License: None (All rights reserved)

Sky plot

Sky plot


M81 - CCD LRGB + color from ASI294, 


            Thomas Richter

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