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The Andromeda Galaxy, also known as Messier 31, M31, or NGC 224; often referred to as the Great Andromeda Nebula in older texts is a spiral galaxy approximately 2.5 million light-years away in the constellation Andromeda.
It is the nearest spiral galaxy to our own, the Milky Way. As it is visible as a faint smudge on a moonless night, it is one of the farthest objects visible to the naked eye, and can be seen even from urban areas with binoculars.
It is named after the princess Andromeda in Greek mythology.
More information are available at the Wikipedia website |
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October 2005 attempt
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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 | November 2008. |
| Location | Lentin Observatory |
| Exposure | LRGB,Mosaic of two panels each one L=30x3mn bin1,R=14X5mn,G=12X5mn,B=17X5mn bin2,-30°c. Scale= 2.14^s/pixel. total time 10h10 |
| 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 1.2, Photoshop CS4. |
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Antoine Vergara