Picture
Deep H-alpha picture of the Prawn nebula (IC 4628) in Scorpius obtained from my yard, 15 km from Sydney’s metropolis centre.
This picture combines:
- 56 x 900s (14h) frames with the H-alpha Baader 3.5nm ultra-narrow filter (purple channel and luminosity layer).
- 25 x 60s (25 min) frames with the OPTOLONG L-Professional filter (inexperienced channel)
- 14 x 30s (7 min) ZWO B filter (blue channel).
Whole integration time: 14h 32 min.
The information had been taken on the nights of twenty fourth, twenty fifth, twenty eighth, twenty ninth and thirtieth August and seventh and twelfth September 2020.
Telescope: Skywatcher Black Diamond 80, f=600mm, with an Orion x0.8 focal reducer (efficient focal size 480 mm, f/6).
I used the ZWO ASIAir to regulate the digital camera, filter wheel, the mount (Skywatcher AZ-EQ6) and the guiding system (ASI120MM + Orion 50mm finderscope).
Tools: ZWO ASI1600MM Professional cooled at -30 C. I used the ZWO ASIAir to regulate the digital camera, the mount (Skywatcher AZ-EQ6) and the guiding system (ASI120MM + Orion 50mm finderscope). The filters had been manually modified utilizing the ZWO filter drawer.
The information have been processed with SIRIL, then transformed into TIF utilizing Matches Liberator utilizing a logarithmic stretch, and eventually mixed in Photoshop to get the colors and the ultimate particulars.
Processing: Information processed with Siril software program. Darks, flats and biases had been used. FITS transformed on TIFF utilizing NASA’s Matches Liberator contemplating a logarithmic perform. Colour / saturation / ranges / distinction / sensible sharpen with Photoshop.
Credit score: Ángel R. López-Sánchez (AAO-MQ).
Full decision picture in my Flickr.
