Image of the day

Captured by
Philip Imbrogno

Pleiades M 45 with the Pleiades 68

My Account

New to Astromart?

Register an account...

Need Help?

A Bag of Worms for sure. Eq-g Vs ASGT

Started by Dan Sach, 03/15/2006 05:12PM
Posted 03/15/2006 05:12PM Opening Post
Okay here goes,
I need a smaller but stable mount to do wide field astrophotography and have narrowed it down to two different mounts: 1.Celestron CG-5 ASGT mount, and 2. The new Orion Sirius EQ-G GT Mount. They both look very appealing to what I need but the celestron mount saves me about $300. {which could be put towards a better quality refractor. I could really use some advice as to which one I should go with. Any help is appreciated. I have links to both mounts at the bottom.

Thanks
Dan


http://www.telescope.com/shopping/product/detailmain.jsp?itemID=125881&itemType=PRODUCT&iMainCat=6&iSubCat=24&iProductID=125881

http://www.buytelescopes.com/product.asp?t=15&pid=5275&m=
Posted 03/15/2006 06:13PM #1
Hi:

About all I can add is that the Celestron has 2 inch Legs, the Orion has 1.75 inch...

Doesn't sound like a big difference but in bending and/or torsion which are the modes that seem important, given equal wall thicknesses, the 2 inch legs will be about 50% stiffer.

Chalk one up for the Celestron...

Jon
Posted 03/15/2006 08:28PM #2
You don't say what OTA you plan on using. If you want to use a c-11 - at a minimum I'd look to the Losmandy G-11.

Neither mount is really suitable for long exposure work, but short stuff and stacking and you will be able to do some stuff - just don't "under mount". For those mounts a 4" Ref, or a 6" Cat/newt is probably a good combo.