NGC 6946  +  NGC 6939

Full resolution (1600x1200 px  470kB)

Negative Image and object identification (1600x1200 px  310kB)

Halpha Image of NGC6939

Object data of NGC6946

Object type: galaxy (SBc)
Size: 11.2' x 9.8' ( >16'  in negative image)
Magnitude: 9.7 mag
Constellation: Cep / Cyg
Distance: 18 MLy

Object data of NGC6939

Object type: open cluster (II 1 r)
Size: 8'
Magnitude: 7.8 mag
Constellation: Cep
Distance: 6,000 Ly

Exposure data

Date: 2005-09-07 + 2005-09-08
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 25x12m / R 6x10m / G 6x5m / B 6x5m
Exposure time total: L 5h    /   RGB 2 h


nebula near NGC6939 (very good visible in negative image)

The nebula is very faint in a deep Halpha image



Below you find a 200% zoom of NGC6946. (The red HII regions of this barred spiral galaxy are clearly visible.)

Supernova SN2004ET (1 year old) is indicated.