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



    
        

            Mark Wetzel
M81 Bode's Nebula
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M81 Bode's Nebula

Getting plate-solving status, please wait...
M81 Bode's Nebula, 



    
        

            Mark Wetzel
M81 Bode's Nebula
Powered byPixInsight

M81 Bode's Nebula

Technical card

Imaging telescopes or lenses: Celestron C9.25 Edge HD

Imaging cameras: ZWO ASI 1600MM-Pro Cool

Mounts: Celestron CGEMⅡ

Guiding telescopes or lenses: Celestron C9.25 Edge HD

Guiding cameras: ZWO 174MM Mini

Software: Celestron CPWI  ·  Main Sequence Software Seqence Generator Pro 3  ·  Pleiades Astrophoto PinInsight  ·  Adobe Photoshop CC 2020  ·  Stellarium  ·  PHD 2

Filters: ZWO 36mm Red  ·  ZWO 36mm Green Filter  ·  ZWO 36mm Blue Filter  ·  ZWO 36mm Luminance Filter

Accessory: Celestron OAG


Dates:April 19, 2020

Frames:
ZWO 36mm 7nm Ha: 27x240" (1h 48') (gain: 200.00) -10C bin 1x1
ZWO 36mm Blue Filter: 36x180" (1h 48') (gain: 139.00) bin 1x1
ZWO 36mm Green Filter: 33x180" (1h 39') (gain: 139.00) -10C bin 1x1
ZWO 36mm Luminance Filter: 87x120" (2h 54') (gain: 139.00) -10C bin 1x1
ZWO 36mm Red: 36x180" (1h 48') (gain: 139.00) -10C bin 1x1

Integration: 9h 57'

Darks: ~50

Flats: ~50

Bias: ~100

Avg. Moon age: 26.30 days

Avg. Moon phase: 11.36%

Bortle Dark-Sky Scale: 2.40


Basic astrometry details

Astrometry.net job: 3817787

RA center: 9h 55' 34"

DEC center: +69° 4' 1"

Pixel scale: 1.270 arcsec/pixel

Orientation: 327.687 degrees

Field radius: 0.349 degrees


Resolution: 1575x1200

Locations: Coast Range Remote Site, Walton, Oregon, United States

Data source: Traveller

Description

HaLRGB image of M81 taken over three nights in Bortel 2 and 3 locations.
Ha 27 x 4 min, Gain 200 Offset 30
Lum 87 x 2 min Gain 139 Offset 21
Red 36 x 3 min Gain 139 Offset 21
Green 33 x 3 min Gain 139 Offset 21
Blue 36 x 3 min Gain 139 Offset 21
~ 9 hours total integration time

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