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M101 from our light polluted skies
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Roland Christen
Hi Astronuts,
Had a couple of clear nights last week, enough to shoot some images with our 17" Astrograph using the venerable and old STL11K (I call it the noise maker). With 9 micron pixels it's a great match for the 17" F8 scope. There is about 5 hours of image, stacked and lightly processed in MaximDL, unguided with APCC/APPM modeling. No need to guide any more even with this long focal length.
https://www.astrobin.com/full/hj4o7s/0/?mod=&real=
https://www.astrobin.com/hj4o7s/0/
Rolando
-- Roland Christen Astro-Physics
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midmoastro
On Mon, Jun 27, 2022 at 06:21 PM, Roland Christen wrote:
https://www.astrobin.com/hj4o7s/0/Nice! Great detail in there. 3458mm focal length? Todd
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Roland Christen
17x8x25.4 ;^))
Rolando
-----Original Message-----
From: midmoastro <teche70@...> To: main@ap-gto.groups.io Sent: Mon, Jun 27, 2022 7:00 pm Subject: Re: [ap-gto] M101 from our light polluted skies On Mon, Jun 27, 2022 at 06:21 PM, Roland Christen wrote:
https://www.astrobin.com/hj4o7s/0/ Todd -- Roland Christen Astro-Physics
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Jeff B
Beautiful Roland!
On Mon, Jun 27, 2022 at 8:02 PM midmoastro <teche70@...> wrote: On Mon, Jun 27, 2022 at 06:21 PM, Roland Christen wrote:
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Bob Enouen
Cool! Thanks for sharing.
toggle quoted messageShow quoted text
Bob Robert J. Enouen Cell 513-504-4410
On Jun 27, 2022, at 7:21 PM, Roland Christen via groups.io <chris1011@...> wrote:
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Very nice Roland, as is all of your work and products. A very drool worthy astrograph. I too would be interested to hear long your subs were.
Eric
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Roland Christen
Typically 4 to 6 minutes, depending on how fast the stars in the object saturate.
Roland
-----Original Message-----
From: Eric Weiner <weinere@...> To: main@ap-gto.groups.io Sent: Mon, Jun 27, 2022 8:21 pm Subject: Re: [ap-gto] M101 from our light polluted skies Very nice Roland, as is all of your work and products. A very drool worthy astrograph. I too would be interested to hear long your subs were.
Eric
-- Roland Christen Astro-Physics
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