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Old 06-January-2005, 07:05 AM
oharedavidj oharedavidj is offline
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This is a shot I obtained by placing my Minolta XG-1 on a tripod at bulb setting with ISO 400 film, cable released shutter for 26 seconds. Some slight star trails but an obvious green fuzz which I believe to be Machholz.

I am new to astro photography, so this isn't as amazing as some of the pictures I've seen other members post, but my contribution none the less.
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Old 07-January-2005, 03:19 PM
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CharlesBell CharlesBell is offline
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Hello,

Thanks for posting your image.

It tells me how much drift/trail I would see if I tried the same thing on a tripod without my scope and CCD camera. Some evenings after work, I am just too tired to lug my 12 inch scope out and set it up.

What you can do to get a better image of the comet is to take a series of shorter exposures and align and stack them with a program called Registax.

That way the details of the tails would not blur but begin to build in the combined image and you may very well see much more in the final image.


If you have a telescope scope polar mounted with a drive on it, you can piggy back you camera and take a series of even longer exposures and see the whole tail stucture. It goes out several degrees of arc width.

You have a very nice filed of view in your camera. Looks like about 15 degrees!

I only have about one degree of arc using a short focal length MiniBorg60 + my CCD.


You also have several stars from the Hyades cluster in Taurus. Albebaran is the bright star in Taurus which is the orange looking star in the upper left of your photo.

Looking and comparing some of your fainter stars I see some are as faint as magnitude 9. That's pretty good. You could capture really faint stuff if you could get it mounted on a scope with a drive and get your exposure up to 60 seconds or more. I think you could then see even fainter comets. There are currently 4 more fainter comets in your field of view, but are too faint to have been picked up.

I love wide field photos.

Looks like Machholz is even closer to M45 Pleiades today. It is about 3 arc degress to the right of the Plelaides and moving fast!

Best wishes,

Charles
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