M 9   (co-operation with Wolfgang Ries)

Full resolution (1905x1330 px  370kB)

Wide field image with 4" Apo (LRGB)

Object data of M9

Object type: globular cluster (VIII)
Size: 5.5'
Magnitude: 7.7 mag
Constellation: Oph
Distance: 26,000 Ly

Exposure data of Luminance

Date: 2007-06-19
Location: Observatory Seng / Austria
Telescope: 18" Newton f=1608mm
Camera: ST10-XME
  Binning: L 1x1
  Exposure time: L 41x30s
Exposure time total: L 20m
Notes: luminance by Wolfgang Ries

Exposure data of RGB

Date: 2007-06-14 + 19
Location: Nussbach / Austria (400m)
Telescope: TeleVue NP101 (4" Apo f=540mm)
Camera: ST2000XM with CFW8 and SBIG Filters
  Binning: RGB 1x1
  Exposure time: R 9x12m / G 9x6m / B 9x6m
Exposure time total: RGB 3h 36m