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Andromeda

Started by [email protected], 09/27/2015 03:21AM
Posted 09/27/2015 03:21AM Opening Post
Here's one from last week with the newly refigured 10". I must say that my mount is not equipped to handle the 10" and I cobbled together some rings out of scrap wood. Add to that the lack of sufficient counterweights and I'm very pleased with this image! I didn't dare add a guide scope to the already overloaded CG5 mount so I used a Soligor 135mm f/3.5 lens w/Basler A102f mono Firewire camera. I had trouble finding enough weights to balance things out. I'm not sure if it was the lens type or the lack of balance but I didn't have much luck getting metaguide calibrated or working well. Guiding was pretty off and my stars got stretched. Here's andromeda @ ISO 1600 180s exposures... 23 of them but only stacked about 10. Processing is actually pretty bad now that I look at it. My 2-year old was getting into things so I rushed.

Photos of my rig will follow.


Attached Image:

brucesdad13@gmail.com's attachment for post 59743

~ Charlie Stevenson

8" f/5.7 String Telescope - 1st Scope Build; 2nd Place Stellafane 2016 Optical Award for Newtonians 12.5" and Smaller
10" f/4.5 Newtonian (June 2015) mirror refigured by Optic Wave Labs P-V WaveFront 1/14.24, Strehl Ratio 0.993 (Aug '15)
Criterion RV-6 seems to be circa 1973 (June 2015) [For Sale]
Celestron C8-A XLT (January 2015) [For Sale]
Celestron PowerSeeker 70AZ (Christmas 2014)
Aldrich Astronomical Society member since 2015
http://astro.charleskelleystevenson.com/
Posted 09/27/2015 03:24AM | Edited 09/27/2015 03:28AM #1
Note the use of the wife's 3lb hand weights and the flywheel of a small engine to try and add enough weight. ;-) I had previously knocked the teeth out of the flywheel (purposefully) since it sometimes sits at the back of the OTA to balance out my Televue 9mm when the 10" is used as a dob.

Attached Image:

brucesdad13@gmail.com's attachment for post 150047

~ Charlie Stevenson

8" f/5.7 String Telescope - 1st Scope Build; 2nd Place Stellafane 2016 Optical Award for Newtonians 12.5" and Smaller
10" f/4.5 Newtonian (June 2015) mirror refigured by Optic Wave Labs P-V WaveFront 1/14.24, Strehl Ratio 0.993 (Aug '15)
Criterion RV-6 seems to be circa 1973 (June 2015) [For Sale]
Celestron C8-A XLT (January 2015) [For Sale]
Celestron PowerSeeker 70AZ (Christmas 2014)
Aldrich Astronomical Society member since 2015
http://astro.charleskelleystevenson.com/