This spectacular view directly into the constellation Cassiopeia shows the faint nebulae IC59 and IC63 embedded into the even-more faint SH2-185 hydrogen emission nebula.
- Imaging telescope: Samyang 135mm @ f/2.0
- Imaging camera: ASI178MM (uncooled)
- Mount: OTE-150-I, unguided
- Baader 7nm Ha-Filter
- Exposure time: 7h20min (60s exposures)
- Observing date: August 29, 2017
Open Source Hardware Tools I used to capture this surprisingly deep view:
- My Bahtinov mask for sharp focus
- Dovetail adapter Astroschelle-SY135
- Sony E-mount to ASI camera adapter: ETOASI
Original post at astrobin:
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