Hemisphere:  Northern  ·  Constellation: Andromeda (And)  ·  Contains:  Great Nebula in Andromeda  ·  M 110  ·  M 31  ·  M 32  ·  NGC 205  ·  NGC 221  ·  NGC 224  ·  The star 32And  ·  The star νAnd
M31 from the Driveway, 



    
        

            astrobrad
M31 from the Driveway
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M31 from the Driveway

M31 from the Driveway, 



    
        

            astrobrad
M31 from the Driveway
Powered byPixInsight

M31 from the Driveway

Technical card

Imaging telescopes or lenses: William Optics Zenithstar 61

Imaging cameras: Nikon D810A

Mounts: iOptron CEM60EC  ·  iOptron Tri-Pier

Software: PixInsight  ·  O'Telescope BackyardNIKON Premium Edition

Accessory: iOptron iPolar


Dates:Sept. 30, 2019

Frames:
30x60" (30') ISO800
14x90" (21') ISO800

Integration: 51'

Darks: ~30

Bias: ~50

Avg. Moon age: 2.00 days

Avg. Moon phase: 4.46%

Bortle Dark-Sky Scale: 4.00

Temperature: 2.00


Basic astrometry details

Astrometry.net job: 2961587

RA center: 0h 40' 36"

DEC center: +40° 23' 27"

Pixel scale: 2.714 arcsec/pixel

Orientation: 268.038 degrees

Field radius: 3.345 degrees


Resolution: 1857x3095

Data source: Backyard

Description

My first M31! It was a very long night, started by testing out a 12V to 5.2V regulator to power my compute stick from the Pegasus UPB V2 12V since the USB was not able too, creating a container for the regulator and then getting it all attached to the tripier. This was my first time using the CEM60EC with my smaller scope the WO Zenithstar 61. I got it all setup and of course the cloud rolls roll in though it was supposed to be clear. Surprisingly I pressed on in hopes it would be clear and the iOptron iPolar was able to see enough stars though the clouds to plate solve and polar align. I then experience very strange pointing issues that eventually I resolved with a 3 star model on the mount but have never needed before. Typically I just level, polar align, sync on Vega and it’s done. Took me 3 hours to figure that out between the clouds coming in an out. But by 1:30 AM it was clear and I could point and I got some data of M31 and M45.

Comments

Revisions

  • M31 from the Driveway, 



    
        

            astrobrad
    Original
  • M31 from the Driveway, 



    
        

            astrobrad
    B
  • Final
    M31 from the Driveway, 



    
        

            astrobrad
    C

B

Description: Performed color calibration and color saturation adjustments.

Uploaded: ...

C

Description: Additional background adjustment using inverted masks and histogram. Rotated to match original.

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Sky plot

Sky plot

Histogram

M31 from the Driveway, 



    
        

            astrobrad