NGC 6791

Full resolution (1600x1200 px  500kB)

Object data

Object type: open cluster (I 2 r)
Size: 16'
Magnitude: 9.5    /    brightest star 13 mag
Constellation: Lyr
Distance: 17,000 Ly

Exposure data

Date: 2005-08-29
Location: Schlierbach / Austria (400m)
Telescope: TeleVue NP101 (4" Apo f=540mm)
Camera: ST2000XM with CFW8 and SBIG Filters
  Binning: L 1x1  /   RGB 1x1 
  Exposure time: L 24x2m / R 8x10m / G 8x5m / B 8x5m                                       
  Exposure time total: L 48min    /   RGB 208 min