Exposure data
Telescopes: Pentax Asahi 200mm @ f/4 + 4.5" Newton f=440mm
Cameras: SBIG ST8300M + SBIG ST2000XM
Filters: Baader LRGB + SBIG LRGB + Astronomik Hα (13nm)
Exposure times: Hα:24x5min L:76x5min R:20x5min G:20x5min B:20x5min
Exposure time total: 13h 20min
Mount: Vixen New Atlux
Location: Erdweg/Germany (500m)
Date: 2009-05-19+20 + 2010-06-05 + 2011-05-29+30 + 2012-05-26
Object data of IC 4603
Object type: Reflection nebula
Size: 20'
Magnitude: -
Constellation: Ophiuchus
Distance: 440 Ly
Object data of IC 4604
Object type: Reflection nebula
Size: 60'
Magnitude: 7.2 mag
Constellation: Ophiuchus
Distance: 440 Ly
Object data of IC 4606
Object type: Reflection nebula
Size: 60'
Magnitude: 1.1 mag
Constellation: Ophiuchus
Distance: 460 Ly
