NGC891

Constellation: Andromeda        Distance: 8.9 million lightyear

NGC891

Sterk wisselende helderheid.
5 opnames zonder barlow (foutje) gevolgd op 400 mm,
4 opnames met 2x barlow gevolgd op 800 mm.

Image spcefications:
Exposure: 72 minutes (9 x 8 minutes) on 1600 ISO, RAW format
Camera: Modified Canon 40D
Telescope: 25 cm Meade ACF with focal reducer f 6.3
Mount: Losmandy G11
Guiding: Vixen Guiding Scope 70S and SBIG ST-4
Image processing: ImagesPlus, Photoshop CS3, NoiseNinja
Location: Etoile St Cyrice, France
Sky Quality Meter: 21,34
Temperature: 2° C
Date: 19 december 2008
High resolution (1.3MB)