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ASTRO: 7 hours of halpha in SH2-101 at f/12.6



 
 
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  #1  
Old July 11th 08, 03:46 PM posted to alt.binaries.pictures.astro
Richard Crisp
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Posts: 100
Default ASTRO: 7 hours of halpha in SH2-101 at f/12.6

this is starting to shape up. Stefan is right: it is faint. I hav 7 hours of
Halpha binned 2x2 in a big pixel camera (12 micron pixels) with high QE
(~60%) and a reasonably high throughput Halpha filter (7nm @~90%
transmission)

I used the stinger 450mm classical cass at f/12.6 for this one: F=5760mm

Guiding was using the Lumicon Giant Easy Guider without the reducer.

http://www.narrowbandimaging.com/sh2...er_ha_page.htm





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  #2  
Old July 11th 08, 06:35 PM posted to alt.binaries.pictures.astro
John N. Gretchen III
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Posts: 460
Default ASTRO: 7 hours of halpha in SH2-101 at f/12.6

Nice fine detail there!

Richard Crisp wrote:
this is starting to shape up. Stefan is right: it is faint. I hav 7 hours of
Halpha binned 2x2 in a big pixel camera (12 micron pixels) with high QE
(~60%) and a reasonably high throughput Halpha filter (7nm @~90%
transmission)

I used the stinger 450mm classical cass at f/12.6 for this one: F=5760mm

Guiding was using the Lumicon Giant Easy Guider without the reducer.

http://www.narrowbandimaging.com/sh2...er_ha_page.htm





--
John N. Gretchen III
N5JNG NCS304
http://www.tisd.net/~jng3
  #3  
Old July 14th 08, 09:54 PM posted to alt.binaries.pictures.astro
Stefan Lilge
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Posts: 2,269
Default ASTRO: 7 hours of halpha in SH2-101 at f/12.6

Great picture. With the amount of signal you have gathered the dark lanes
look well defined.

Stefan

"Richard Crisp" schrieb im Newsbeitrag
...
this is starting to shape up. Stefan is right: it is faint. I hav 7 hours
of Halpha binned 2x2 in a big pixel camera (12 micron pixels) with high QE
(~60%) and a reasonably high throughput Halpha filter (7nm @~90%
transmission)

I used the stinger 450mm classical cass at f/12.6 for this one: F=5760mm

Guiding was using the Lumicon Giant Easy Guider without the reducer.

http://www.narrowbandimaging.com/sh2...er_ha_page.htm






 




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