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Contains:  Bode's nebulae, IC 2574, M 81, M 82, NGC 3031, NGC 3034, The star 22UMa, The star 24UMa, The star 27UMa, The star 32UMa
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M81/M82 Widefield, 


            Thilo Frey
M81/M82 Widefield
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M81/M82 Widefield

Technical card

Imaging telescopes or lenses: Samyang 135mm f/2 ED UMC

Imaging cameras: ZWO Optical ASI1600MM-Cool

Mounts: Skywatcher EQ8 Pro

Guiding telescopes or lenses: APM APO 107/700

Guiding cameras: Starlight Express Lodestar X2

Software: Pixinsight 1.8

Filters: Astronomik Deep-Sky RGB  ·  Ha 12nm

Accessory: QHYCCD Polemaster

Dates:March 25, 2017March 26, 2017

CLS CCD: 5x300" (gain: 139.00) -20C bin 1x1
CLS CCD: 3x600" (gain: 139.00) -20C bin 1x1
Astronomik Deep-Sky B: 6x150" (gain: 139.00) bin 1x1
Astronomik Deep-Sky B: 3x300" (gain: 139.00) bin 2x2
Astronomik Deep-Sky G: 6x150" (gain: 139.00) bin 1x1
Astronomik Deep-Sky G: 3x300" (gain: 139.00) bin 2x2
Astronomik Deep-Sky R: 6x150" (gain: 139.00) -20C bin 1x1
Astronomik Deep-Sky R: 3x300" (gain: 139.00) -20C bin 2x2
Ha 12nm: 6x300" (gain: 139.00) bin 1x1
Ha 12nm: 3x600" (gain: 139.00) bin 1x1

Integration: 3.4 hours

Darks: ~20

Flats: ~25

Bias: ~50

Avg. Moon age: 27.26 days

Avg. Moon phase: 6.01%

Temperature: 2.00

Basic astrometry details job: 1509584

RA center: 9h 59' 6"

DEC center: +68° 59' 45"

Pixel scale: 6.033 arcsec/pixel

Orientation: 262.823 degrees

Field radius: 4.629 degrees

Resolution: 4344x3412

Locations: Mobile, near Balsthal, SO, Switzerland



Thilo Frey
License: None (All rights reserved)

Sky plot

Sky plot


M81/M82 Widefield, 


            Thilo Frey