M81

Rancho Del Sol Observatory · Camino, California

M81 by Ken Crawford

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Image Equipment Details

  • RCOS 20" carbon truss - 100mm FFC
  • Paramount ME
  • Apogee Alta u16m
  • SBIG ST402 Guider
  • Astrodon MegaMoag
  • Astrodon 50mm Sq Filters

Exposure Details

  • Clear/ Lum = 480 minutes
  • Red = 120 minutes
  • Green = 120 minutes
  • Blue = 120 minutes
  • Ha 5nm = 180 minutes
  • OIII 3nm. = 0 minutes
  • SII 5nm = 0 minutes

Software Used

  • MaxDL 5
  • CCDAutopilot 4
  • CCDStack2
  • Photoshop CC & PIxInsight

About this image


M81 also known as Bode's Galaxy is around 12 million light years away. It has an irregular satellite galaxy known as Homberg IX. See the write-up about this image at Astronomy Picture Of The Day.

Full Size Image

Irregular galaxy Homberg IX with a small HII region to the upper right.

These images may be used for personal or educational use without contacting me. But, these images and this website are Copyright © Ken Crawford. If you are a publisher and would like a full resolution link to this or other images please contact Ken Crawford.