![]() |
![]() |
![]() |
![]() |
![]() |
![]() |
![]() |
NGC 2683 in Lynx
Optics/Mount: CPC1100 with f6.3 Celestron reducer on a Milburn Wedge. Dec antibacklash set to 27/27. PEC on.
Camera: SXVR-H694
Exposure: 4.25 hours total exposure. 82 x 2 mins lum (bin 1x1), 15 x 2 mins (bin 2x2) each color.
Filters: Astrodon 2i 1.25 inch LRGB
Dates: January 8-9 and 9-10, 2013
Imaging automation and capture: Sequence Generator Pro
Guiding Hardware: Flea 3, Taurus Tracker III off axis guider. Guiding scale 0.72 arcsec/pixel. 1 second guide exposures.
Guiding Software: PHD. Aggressiveness 80, Hysteresis 0, Minimum Move 0.9, Max RA 1000, Max Dec 600. Dec set to auto/resist switching. Dithering set to Extreme with Settle < 1.2.
Guiding performance: HFR of subs about 1.35 arc seconds
Focusing: Rigel Systems GCUSB/nStep absolute focuser on stock C11 focuser
Light pollution: Bortle 8 (white zone, NELM about mag 4.5)
Image scale at capture: 0.6 (Lum bin 1x1) and 1.2 (RGB bin 2x2) arcsecs/pixel = f/5.5
Scale of presentation: 1.2 arcsecs/pixel
Processing: Bad pixel map in Nebulosity 2, stacked with Deep Sky Stacker, post-processed with Photoshop CS2.
comment | |