California Nebula

(fritz kleinhans)


 

  California Nebula (Perseus):
 
Oct 19-20, 2009; Hale Hill Observatory, IN

  Skies:  SQM = 21.0; mag 5 on Litte Dipper

300 mm f4.0 Sigma Apo @ f4.8, Canon-Hutech 400D @ ISO 800, Losmandy GM-8, SBIG-STV efinder guiding.
(cropped, full resolution, 3.9 arcsec/pixel)

5 x 7 min subs = 35 minutes; 6 darks.