M81 group of Galaxies
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The M81 Group is a group of galaxies in the constellation Ursa Major that contains the well-known galaxies Messier 81 and Messier 82 as well as several other galaxies with high apparent brightnesses.
The approximate center of the group is located at a distance of 3.6 Mpc, making it one of the nearest groups to the Local Group.
More informations are available at the Wikipedia website |
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| Optics |
130 mm f/5.0 Astro-Physics EDF Refractor with AP Telecompressor. TMB Triplet Apo 80 mm f/6 for guiding |
| Mount |
Astro-Physics AP 900GTO |
| Camera | SBIG ST-10XME. With a Remote Guiding Head |
| Filters | SBIG CFW9. Astrodon LRGB filters. Baader-Planetarium 7 nm Ha,SII,OII, filters |
| Focuser | Robofocus focuser and Focusmax software |
| Dates | March 2009. |
| Location | Lentin Observatory |
| Exposure | LHaRGB,L=41X3mn Ha=4x20mn bin1,R=22X3mn,G=24X3mn,B=29X3mn bin2,-30°c. Scale= 2.14^s/pixel. total time 7h08 |
| Acquisition | All data's were acquired unattended with ACP Observatory Control Software V5 DC3 Dreams and MaxIm DL 5, including sky flats , |
| Processing | MaxIm DL 5, PixInsight 1.4, Photoshop CS4. |
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All content are copyright
Antoine Vergara