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View Full Version : 10 Hour shot of M27 in Ha


Tristan DiLapo
September 26th 03, 03:38 AM
Hi Mike,

Check out this image of M27 in Ha. Ten hour exposure ... very
impressive. Here's the details:

"I shot this image of M27 over the past few nights through Ha, [OIII]
and a Blue filter.
I had 5.75 hours of Ha, 3.25 hours of [OIII] and one hour of Blue.
The emission line exposures were 15 minutes and were exposed through
Custom Scientific 3nm FWHM emission line filters.
The camera is a Finger Lakes IMG1024S "Dream Machine" which uses a
Tektronix TK1024 sensor.
An SBIG AO7 was used along with an SBIG ST7E and an RCOS Optical Systems
Dichroic Beam Splitter to guide and AO-correct the FLI camera.
The imaging scope is a Celestron C14 operating at f./11 (3910mm Focal
Length) mounted on an Astro-Physics AP1200GTO mount."

http://www.rdcrisp.darkhorizons.org/m27_dumbbell_nebula_hao3b_page.htm

Tris

Richard Crisp
September 26th 03, 04:43 AM
I hope you enjoyed the image, Tristan. I am the author of it.

Richard Crisp



"Tristan DiLapo" > wrote in message
...
> Hi Mike,
>
> Check out this image of M27 in Ha. Ten hour exposure ... very
> impressive. Here's the details:
>
> "I shot this image of M27 over the past few nights through Ha, [OIII]
> and a Blue filter.
> I had 5.75 hours of Ha, 3.25 hours of [OIII] and one hour of Blue.
> The emission line exposures were 15 minutes and were exposed through
> Custom Scientific 3nm FWHM emission line filters.
> The camera is a Finger Lakes IMG1024S "Dream Machine" which uses a
> Tektronix TK1024 sensor.
> An SBIG AO7 was used along with an SBIG ST7E and an RCOS Optical Systems
> Dichroic Beam Splitter to guide and AO-correct the FLI camera.
> The imaging scope is a Celestron C14 operating at f./11 (3910mm Focal
> Length) mounted on an Astro-Physics AP1200GTO mount."
>
> http://www.rdcrisp.darkhorizons.org/m27_dumbbell_nebula_hao3b_page.htm
>
> Tris
>