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PostPosted: Wed Feb 27, 2019 3:48 pm 
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Joined: Sun Oct 25, 2009 3:56 pm
Posts: 1236
Location: Caithness
Setup was my usual: Celestron C8 using both the 0,63x and 0.5x reducers. Camera was the Altair GPcam V2 for mono and Altair GPcam for the colour. Captured using APT and guided with PHD with a finder guider on the Ioptron CEM 25P. 10x300 sec subs (10x180 sec subs binned for the colour on the Hamburger galaxy). The planetary is a single exposure as I found stacking reduced even the little detail that could be seen. No darks or flats but dithering was used at 5 pixels. I realise now that I need to increase that to eliminate more noise. Images are NGC 3628, the Horsehead and the often overlooked planetary nebula in Orion, NGC 2022.

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BRIAN
Celestron Nexstar 8SE
Altair Astro 102 ED refractor with Lunt B600 CaK diagonal
Coronado PST DS, Daystar Quark
ZWO ASI120MM camera, Canon 1000D (astro modified)
Gallery: http://www.astrobin.com/users/smerral/


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PostPosted: Thu Feb 28, 2019 4:57 pm 
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Joined: Fri Dec 03, 2004 9:58 pm
Posts: 3516
Location: Wellingborough
The Horsehead image takes me back to something I might have seen many (many) years ago in a glossy tome such as Larousse Encyclopaedia of Astronomy, imaged by the 100 inch reflector at Mt. Wilson. I like it :D

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Brian
52.3N 0.6W
Wellingborough UK.

254mm LX90 on Superwedge, WO ZS66SD, Helios 102mm f5 on EQ1, Hunter 11x80, Pentax 10x50
ASI120MC Toucam Pros 740k/840k/900nc mono, Pentax K110D
Ro-Ro roof shed


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PostPosted: Thu Feb 28, 2019 6:39 pm 
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Joined: Sun Oct 25, 2009 3:56 pm
Posts: 1236
Location: Caithness
Thanks Brian. Yes it's amazing how far astronomical imaging has come. Also there is something about mono which I find quite attractive. For one thing I think our eyes pick out more detail in mono.

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BRIAN
Celestron Nexstar 8SE
Altair Astro 102 ED refractor with Lunt B600 CaK diagonal
Coronado PST DS, Daystar Quark
ZWO ASI120MM camera, Canon 1000D (astro modified)
Gallery: http://www.astrobin.com/users/smerral/


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PostPosted: Fri Mar 01, 2019 7:02 am 
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Joined: Sun May 11, 2008 6:11 pm
Posts: 3194
Location: Portslade, Sussex Lat 50deg 51min Long 0deg 13mins West
I remember that book and with very fond memories- The 'Larousse Encyclopedia of Astronomy' . I spent many a lunchtime in the school library reading it and losing myself in the pages. maf.


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