NGC 1807  +  NGC 1817 

Full resolution (1600x1200 px  300kB)

Object data of NGC1807

Object type: open cluster (II 2 p)
Size: 17'
Magnitude: 7.0 mag
Constellation: Tau
Distance: -
Notes: probably no real physical cluster

Object data of NGC1817

Object type: open cluster (IV 2 r)
Size: 16'
Magnitude: 7.7 mag
Constellation: Tau
Distance: 6,000 Ly
Notes: = cluster on left side in image

Exposure data

Date: 2007-02-04
Location: Schlierbach / Austria (400m)
Telescope: TeleVue NP101 (4" Apo f=540mm)
Camera: ST2000XM with CFW8 + SBIG Filters
  Image type: LRGB
  Binning: L 1x1  /   RGB 1x1
  Exposure time: L 23x2m / R 7x10m / G 7x5m / B 7x5m
Exposure time total:  3h 06m


image was captured 2 days after full moon

many background galaxies; brightest one on top side of image is UGC3261