Hemisphere:  Northern  ·  Constellation: Ursa Major (UMa)  ·  Contains:  Bode's nebulae  ·  M 81  ·  NGC 3031
M81, 



    
        

            Minseok.Chang
M81
Powered byPixInsight

M81

M81, 



    
        

            Minseok.Chang
M81
Powered byPixInsight

M81

Technical card

Mounts: RAINBOWASTRO RST400

Filters: Astrodon Tru-Balance Gen2 E-Series - L 31mm  ·  Astrodon 31mm 5nm Ha  ·  Astrodon Tru-Balance Gen2 E-Series - R 31mm  ·  Astrodon Tru-Balance Gen2 E-Series - B 31mm  ·  Astrodon Tru-Balance Gen2 E-Series - G 31mm

Accessory: Astro-Physics CCDT67 Telecompressor


Dates:Feb. 17, 2017

Frames: 84x300" (7h)

Integration: 7h

Avg. Moon age: 20.97 days

Avg. Moon phase: 62.36%


Basic astrometry details

Astrometry.net job: 1463842

RA center: 09h55m28s.8

DEC center: +69°0412

Pixel scale: 1.091 arcsec/pixel

Orientation: -90.061 degrees

Field radius: 0.309 degrees


Resolution: 1596x1269

Locations: Minseok Chang, Incheon, Korea, Republic of

Description

Site : Gunwigoon, KOREA

Telescope : GSO RC10" + CCDT67

Mount : Rainbowastro RST400

Camera : QSI690wsg, Lodestarx2

Exposeure : Ha 12 x 600s, L 24 x 300s, RGB 12 x 300s each (Total 7h 00m, All 2x2 Bin)

I have tried 2x2 bin imaging because of the oversampling isseue.

The seeing of my observatory is very poor so the quality of the image is almost same before.

But I'm sorry for the low resolution.

Comments

Sky plot

Sky plot

Histogram

M81, 



    
        

            Minseok.Chang