Hemisphere:  Northern  ·  Constellation: Ursa Major (UMa)  ·  Contains:  Bode's nebulae  ·  M 81  ·  M 82  ·  NGC 3031  ·  NGC 3034  ·  NGC 3077
Getting plate-solving status, please wait...
M81 and M82, 



    
        

            mads0100
M81 and M82
Powered byPixInsight

M81 and M82

Technical card

Imaging telescopes or lenses: Takahashi FSQ-106N

Imaging cameras: SBIG STF-8300M

Mounts: Mountain Instruments MI-250

Guiding telescopes or lenses: Takahashi FSQ-106N

Guiding cameras: Lodestar

Software: PixInsight  ·  PHD guiding  ·  Sequence Generator Pro  ·  Foster Systems Astro Alert  ·  Foster Systems AstroMC

Filters: Astrodon True Balance LRGB E-Series Gen2 Blue  ·  Astrodon True Balance LRGB E-Series Gen2 Green  ·  Astrodon True Balance LRGB E-Series Gen2 Red

Accessory: SBIG OAG-8300  ·  SBIG Filter Wheel FW8-8300  ·  Moonlite CF 2" focuser with high resolution stepper  ·  RIGELSYS USB-nSTEP Focuser


Dates:March 16, 2016March 17, 2016March 20, 2016

Frames:
Astrodon True Balance LRGB E-Series Gen2 Blue: 15x600" (2h 30') -10C bin 1x1
Astrodon True Balance LRGB E-Series Gen2 Green: 15x600" (2h 30') -10C bin 1x1
Astrodon True Balance LRGB E-Series Gen2 Red: 15x600" (2h 30') -10C bin 1x1

Integration: 7h 30'

Darks: 25

Flats: 25

Bias: 200

Avg. Moon age: 9.80 days

Avg. Moon phase: 72.94%


Basic astrometry details

Astrometry.net job: 1014605

RA center: 9h 56' 59"

DEC center: +69° 16' 1"

Pixel scale: 2.110 arcsec/pixel

Orientation: 0.334 degrees

Field radius: 1.166 degrees


Resolution: 620x426

Description

My yearly attempt at M81 and M82. I think I finally got a picture I'm pretty happy with! M81 and M82 were discovered by Johann Bodes and are collectively known as 'Bodes Nebulae'. They're known as nebulae because at that time in the eighteenth century we didn't understand that these objects were far away galaxies. M81 and M82 are readily visible in binoculars and small telescopes.

Comments

Sky plot

Sky plot

Histogram

M81 and M82, 



    
        

            mads0100