Perseus Galaxy Cluster  -  Abell426

Full resolution (1600x1200 px  363kB)

Object data

Object type: galaxy cluster (88 members)
Size: 230'
Magnitude: brightest member: 12.8 mag
Constellation: Per
Distance: 220 MLy

Exposure data

Date: 2006-01-23+29
Location: Schlierbach / Austria (400m)
Telescope: TeleVue NP101 (4" Apo f=540mm)
Camera: ST2000XM with CFW8 and SBIG Filters
  Binning: L 1x1  /   RGB 2x2
  Exposure time: L 21x12m / R 6x12m / G 6x6m / B 6x6m
Exposure time total: L 4h12min    /   RGB 2h24min

Ambient temperature: -10°C to -20°C ->pinched optics!