The center of the Carina Nebula, with the bright star Eta Carinae and the Keyhole feature, in H-alpha.
Data taken from the backyard at home, ~15 km from Sydney’s city centre, on Monday 19th and Tuesday 21st April 2020.
Equipment: Skywatcher Black Diamond 80 (F=600mm, f/7.5), Skywatcher AZ-EQ6 (mount), ZWO ASI178MC (main camera), ZWO ASI120MM + Orion 50mm guidescope (guiding), 2″ Baader ultra-narrow (3.5 nm) H-alpha filter, and ASIair controlling everything (using my son’s iPad).
This image combines 35 x 600s light frames, and 30 x 600s dark frames. Aligned and stacked with SiriL, stretching, colour contrast, saturation, levels, and luminosity with Photoshop.
Full resolution image in my Flickr.
Credit: Ángel R. López-Sánchez (AAO-MQ).
Dr Ángel R. López-Sánchez 