Horsehead nebula by Peter Moss
Peter Moss's picture

Horsehead nebula

October 16, 2018

30 x 10 min subs using a Ha narrowband filter. Data collected over a span of three weeks due to weather conditions. I originally had OII and SIII data but it was too weak and noisy due to intense light pollution here in Hong Kong, so I just kept the strong Ha data and assigned it to the blue channel.

I used an SBIG ST 8300M camera with a Ha filter on a Williams Optics 80mm refractor telescope.

SBIG 8300M
545 · f/6.8 · 5 hours · ISO 800
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