|
| The NGC 4631 Group is a poorly-defined group of galaxies in the Coma Berenices and Canes Venatici constellations.
The brightest galaxy in the group is NGC 4631,(top right) a spiral galaxy that is seen edge-on from Earth(companion NGC4627 is just over it).Most studies place NGC 4631 and the interacting galaxies NGC 4656/NGC 4657(bottom left) in the same group. The dwarf elliptical galaxy NGC 4627, which is a
companion of NGC 4631, is also by default a member of the group, although it is not listed in most catalogs.
More informations are also available at the Wikipedia website |
|
|
| 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 | January 2009. |
| Location | Lentin Observatory |
| Exposure | LRGB,L=25x3mn bin1,R=14X5mn,G=12X5mn,B=16X5mn bin2,-30°c. Scale= 2.14^s/pixel. total time 4h45 |
| 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. |
|
| |
All content are copyright
Antoine Vergara