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Philip Imbrogno

Jupiter

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Posts Made By: Dale Conrad

August 24, 2011 12:16 AM Forum: Politics

Earthquake in DC/NE

Posted By Dale Conrad
Wonder if all those ignorant folks clinging to their religion and guns had anything to do with it?? 8O 8O

August 26, 2011 10:59 PM Forum: Politics

Obama Wakes Up Thinks Jobs, Closes Gibson Guitars

Posted By Dale Conrad
The U.S. justice dept won't enforce U.S. immigration laws. Sue states that intend to enforce immigration laws. Enforce foreign laws in the United States. Sounds like normal hate A merica first politics to me. 8O 8O

August 28, 2011 01:06 AM Forum: Digital SLR AstroPhotography

Jupiter with Nikon D70

Posted By Dale Conrad
Excellent image Steve. I have to admire your determination. grin grin

August 28, 2011 02:48 AM Forum: Digital SLR AstroPhotography

Jupiter with Nikon D70

Posted By Dale Conrad
Steve, What scope were you using in front of the EP??

August 29, 2011 04:56 PM Forum: Beginning Astronomy?

Cartes du Ciel questions

Posted By Dale Conrad
Joe,
I have two versions of Cartes du Ciel loaded and I am able to search and locate M77 with both versions.
If you right click on the star in question, information about that particular star will pop up with the magnitude, type, proper motion, color index, and various other information. The information available will depend on the catalogs loaded and active at the time.
Part of how the program reacts depends on how the catalogs are set up. You will probably need to play around a bit but for a freebee I think it works pretty good.
Hope this helps at least a little bit.
Dale

August 30, 2011 08:24 PM Forum: Digital SLR AstroPhotography

Comet Garradd

Posted By Dale Conrad
Looks like the combination is working pretty good for you..

August 31, 2011 07:20 AM Forum: Politics

If I...

Posted By Dale Conrad
Of course you can Tony. Not me though, I would have flushed it. 8O 8O

September 3, 2011 10:08 PM Forum: CCD Imaging and Processing/Deep Sky

Another image from LAAS

Posted By Dale Conrad
Very nice Sir.. 8O grin
Dale

September 4, 2011 09:20 PM Forum: CCD Imaging and Processing/Deep Sky

2nd image from this week, The Bubble and M52

Posted By Dale Conrad
Very nice Floyd....

September 11, 2011 05:26 PM Forum: Equipment Talk

Selecting a New Setup

Posted By Dale Conrad
David,
I will echo a lot of what has been said already. Some of the scopes you mentioned have fairly long focal lengths and weight to them. For the best possible photos this will mean the best mount you can afford plus some. For visual use, the target object can move around wuite a bit without you even noticeing but the camera records all, so the sky conditions and mount/guiding become the limiting factors.

There is no one scope suitable for all objects. Star clusters want the largest diameter scope (for seeing the faintest stars) you can track with, while a large nebula will need a much wider field to contain the object. In sky photography wide field amounts to 400 to 500mm focal length, for objects like the veil complex 200mm or so is needed. Detailed globular cluster photos 2 to 5 thousand mm focal length is needed, along with good seeing and the most stringent requirement for the mount.

DSLRs become limited in how faint an object you can image due the the amount of noise. Local light polution has to be taken into account but can camera noise usually becomes the limiting factor.

By the way did I mention it is an awful lot of fun? The learning curve can be steep and frustrating at times but that is true with any endevor.

Dale

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