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Contains:  NGC 3077, M 82, NGC 3034, M 81, Bode's nebulae, NGC 3031, NGC 2976
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M81, 





    
        

            Hilmi Al-Kindy
M81

M81

Technical card

Imaging telescope or lens:TeleVue TV60IS

Imaging camera:Canon 7D

Mount:Losmandy G11

Guiding telescope or lens:Meade 8" LX 200r

Guiding camera:SBIG ST402ME

Software:Adobe Photoshop ElementsMaxim DL

Filter:Astronomik CLS CCD Filter

Resolution: 5202x3465

Dates:Dec. 1, 2011

Frames: 30x180" bin 1x1

Integration: 1.5 hours

Avg. Moon age: 6.53 days

Avg. Moon phase: 40.98%

Astrometry.net job: 103276

RA center: 148.959 degrees

DEC center: 69.033 degrees

Pixel scale: 2.447 arcsec/pixel

Orientation: 89.790 degrees

Field radius: 2.124 degrees

Locations: Muscat, None

Description

My first attempt at M81, from a very light polluted site using my Canon 7d. There is lots of noise in the image due to the ambient temperature being at 23 degrees C.

I was using a CLS filter to cut down on the light pulution so the image needed lots of color correction.

Comments

Author

Hilmi
Hilmi Al-Kindy
License: None (All rights reserved)
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M81, 





    
        

            Hilmi Al-Kindy