Stephenson 1  -  Delta Lyr Cluster

Full resolution (1600x1200 px  280kB)

Object data

Object type: open cluster (IV 3 p)
Size: 20'
Magnitude: 3.8
Constellation: Lyr
Distance: 1,200 Ly
Notes: delta1 Lyr (blue) + delta2 Lyr (red)

Exposure data

Date: 2006-08-15
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 34x24s / R 16x2m / G 16x1m / B 16x1m
Exposure time total:  1h 18m

galaxy on left bottom side is UGC11380