AstroBin Questions
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Imaging telescopes or lenses: CANON 200 f/2.8
Imaging cameras: SBIG STT 8300M
Mounts: Losmandy G11
Guiding telescopes or lenses: Orion Finderscope 9x50
Guiding cameras: Starlight Xpress Lodestar
Software: PixInsight, PHD guiding, Microprojects Equinox Image, AstroTortilla AstroTortilla, Astrometry.net
Filters: Astrodon Ha 5nm
Resolution: 3358x2536
Dates: Jan. 26, 2013, Jan. 27, 2013
Locations: Casa de Rob
Frames: Astrodon H-alpha 5nm: 20x300" -30C bin 1x1
Integration: 1.7 hours
Darks: ~80
Flats: ~50
Bias: ~180
Avg. Moon age: 14.12 days
Avg. Moon phase: 99.28%
Bortle Dark-Sky Scale: 8.00
Temperature: 8.67
RA center: 02:32:14.573
DEC center: +61:29:08.524
Pixel scale: 5.71 arcsec/pixel
Orientation: -90.28 degrees
Field width: 5.33 degrees
Field height: 4.02 degrees
Heart nebula - stt-8300m + 5nm astrodon Ha + canon 200 f/2.8L @ f/2.8
focus is difficult at f/2.8 but since the lens only has to focus one frequency, it's possible to use it wide open and get sharp stars. with OSC i used to run this at f/4.
rev B with 5 more frames (+25min) and background extraction
