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Test images with a 16" refractor

Started by maurice clark, 08/04/2002 03:01PM
Posted 08/04/2002 03:01PM Opening Post
Hi all,

I have been experimenting with attaching a CCD to the old 16" refractor at the Goodsell Observatory. This is a massive instrument, with a focal ratio of f/15! It was build in the 1880's and still has the old weight drive. This makes imaging VERY difficult as there is no way of guiding. After a few nights I have managed to adjust the drive so that I can take 120 second images without too must drift.

It was taken with an SBIG ST-8, binned 2x2.

Here are a few of the first images. This one is of M57 and is a combination of 3, 120 second images, processed with Megafix.

Cheers,

Maurice

Attached Image:

maurice clark's attachment for post 1144

* Teach a man to fish and you feed him for a day.
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Posted 08/04/2002 03:04PM #1
This image is of NGC 6503, a 10th magnitude galaxy in Draco.

It is a combination of 5, 120 sec images, processed with MegaFix. SBIG ST-8 binned 3x3.

Maurice

Attached Image:

maurice clark's attachment for post 62155

* Teach a man to fish and you feed him for a day.
* Teach a man to use the internet and he won't bother you for weeks.