< Newer Up Older >

M1, Crab Nebula
(click for higher resolution image)

Optics: GSO RC10 at f/8, l=2000mm
Camera: QSI 683wsg @ -25C
Filters: Astrodon Narrowband Filters (H-alpha 5nm, OIII 3nm, SII 5nm)
Mount: Losmandy G11-G2 with Ovision Worm on RA
AO: Starlight Xpress Active Optics SXV-AO-LF
Guiding: OAG with Starlight Xpress Lodestar Auto Guider / PHD2 Guiding
Location: North Attleboro, Massachusetts
24 hours exposure over several nights in Jan, 2014
Ha:SII:OIII 8h:8h:8h (24 x 20m each) binned 1:1:1
Captured with Sequence Generator Pro
Processed with PixInsight. I used the palette O-III = Red, H-alpha = Green, S-II = Blue