NGC 1931

Full resolution (1600x1200 px  620kB)

DSLR wide field image

Object data of NGC1931

Object type: open cluster + emission nebula
Size: 8'
Magnitude: 10.1 mag
Constellation: Aur
Distance: 10,000 Lj
Notes: NGC1931 is a bright emission nebula, including also a nice reflection component. It is situated between M36 and IC417, as can be seen clearly in the DSLR widefield image.

Exposure data

Date: 2010-03-07+08+18+19
Location: Nussbach / Austria (400m)
Telescope: 12" Newtonian telescope (f=1120mm)
Camera: ST2000XM with CFW8 and Baader Filters
Binning: L 1x1 / RGB 2x2
Exposure time: L 16x12m / R 6x8m / G 6x8m / B 6x8m
Exposure time total: 5h 36m
Notes: bad transparency during luminance exposures, bad seeing during RGB exposures