Telescope: Astro-Tech 8” f/8 Ritchey-Chretien, Orion Atlas EQ-G
Camera: Canon EOS Ra, Baader Mk III MPCC
Filter: Orion Imaging Skyglow Filter
Guide scope: Astro-Tech 60mm, Starlight Xpress Super Star, PHD2
Exposure: 10x120sec, ISO 800, saved as RAW
Darks: Internal (Long Exposure Noise Reduction On)
Flats: 32×1/20ec, Tee shirt flats taken at dusk
Average Light Pollution: Red zone, Bortle 8, fair transparency, moonlight
Lensed Sky Quality Meter: 18.2
Stacking: Mean with a 1-sigma clip.
White Balance: Nebulosity Automatic
Software: Backyard EOS, Deep Sky Stacker, Nebulosity, Photoshop
Comet C/2021 A Leonard is a faint comet currently crossing Canes Venatici in the morning sky. When this image was taken the comet was glowing with a total integrated magnitude of 8.2 and was 73.8 million miles away above the Earth’s northern hemisphere. The trailing stars show the apparent motion of the comet over the period of 40 minutes.
Comet Leonard is currently well placed high in the northeast at dawn.
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