Object Data
Catalog : Abell 21
Type : Planetary Nebula
Size : 12´
Mag : 7,98m
Constellation : Gemini
Distance : 1500 ly
Exposure Data
Date : 2007-03-12 UT 20:07
Location : Latidude 52°54´25“ Longitude 8°44´ 24“
Telescope : SuperApo 130 Astreya f/7 with Televue Reducer x0.8
Mount : CGE Celestron
Camera : ST2000XM
Binning : L+Ha:1x G+B:2x
Exposuretime : L:2x600sec; Ha:4x600sec;G;B:2x480sec
Prossesing : MaxIm DL; Adobe Photoshop