
EPISODE 109 - Collimation Participation!
Welcome baaaack to The Astrocast! Roo's been deep in the world of Schmidt-Cassegrains. This week he walks through exactly how he finally got his Celestron C8 collimated...mostly. Using a combination of SharpCap, a bright star, the "donut method", and a cardboard-and-painter's-tape mask.. plus one mystery that's still left to solve. He also covers his growing non-ZWO C8 build (Player One guiding, a Gemini EAF, SVBony power), how a 30ft active USB 3.0 cable let him run the backyard pier straight from his studio PC, a new TeleGizmos 365 cover, and why iOptron's truss-tube RCs belong on the "retirement scope" list. Plus an Astro Peak update and winter targets on deck...hello, Pleiades!
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š GEAR & LINKS MENTIONED
Collimation & Software
⢠SharpCap (free): https://www.sharpcap.co.uk
⢠N.I.N.A.: https://nighttime-imaging.eu
⢠RustDesk: https://rustdesk.com
⢠Chrome Remote Desktop: https://remotedesktop.google.com
The C8 and other products mentioned:
- ⢠Celestron EdgeHD 8: https://bit.ly/4jkzGzX
- ⢠Gemini EAF autofocuser (review): https://scopetrader.com/zwo-eaf-knockoff-gemini-eaf/
- ⢠SVBony SV241 power box: https://link.amazon/B0d49bD9u
- ⢠SVBony SV241 Pro (NINA-controllable ā runs Roo's Astro Peak rig): https://link.amazon/B06o9NWP3
- ⢠30ft active USB 3.0 Type-A to Type-B cable (w/ 12V barrel jack): https://link.amazon/B0gPwgts5
- ⢠Waterproof outdoor power box: https://link.amazon/B096Pgf58
- ⢠TeleGizmos 365 Series Cover (up to 14" SCT): https://bit.ly/4eux0MN
- ⢠Sky-Watcher SynLink controller: https://bit.ly/4yWse2X
- ⢠StellarMate OS: https://stellarmate.com
- ⢠iOptron Photron RC10 Truss: https://bit.ly/4zZ0tXs
- ⢠iOptron Photron RC14 Truss: https://bit.ly/48m8J8d
-  ⢠iOptron Photron RC12 Truss: https://bit.ly/3UuwdF0
- ⢠iOptron Photron RC16 Truss: https://bit.ly/4yU7ZCj
- ⢠Askar SQA55 (Roo's remote scope): https://bit.ly/4s4pAWg
The 14/16 are true "retirement scopes", in my opinion. Here's hoping!
Please note: any purchases made from links here will result in a small cut of the profit going to The Astrocast, thank you for your support!Ā
Remote Imaging?
⢠Astro Peak Observatories (Bortle 1, southern Utah): https://astropeak.space
Join our Patreon to get a discount on your pier at AP!Ā
https://www.patreon.com/cw/TheAstrocast
ā±ļø CHAPTERS
00:00 Intro
00:46 Welcome Back
01:50 From Refractors to an SCT
02:18 Five Months at Astro Peak
03:54 Learning to Collimate the C8
04:20 SharpCap: The Right Tool for Collimation
06:28 Connecting Gear & Finding a Bright Star
08:59 Making the "Donut" ā Defocusing Explained
10:29 The Cardboard Mask Trick
13:48 Adjusting the Collimation Screws
15:28 The Flattened Donut Mystery
16:15 Building a Non-ZWO C8 Rig
18:51 SVBony SV241 & Ditching the Laptop
20:39 Running a 30ft Active USB Cable to the Pier
23:54 Controlling the Rig from an iPad
25:21 Future Plans: Mini PC, StellarMate & SynLink
26:59 A Waterproof Power Box
28:54 The TeleGizmos 365 Cover
31:28 RC Telescopes & the "Retirement Scope"
33:34 Wrap-Up: Orion Season & the Pleiades
35:49 Outro
š¬ Know great C8/Gemini autofocus settings (step size, backlash)? Email Roo: [email protected]
š SUPPORT THE SHOW
Join the Patreon for members-only Discord access and a discount at Astro Peak:
https://www.patreon.com/theastrocast
š§ Listen on Spotify & Apple Podcasts
Shout-outs: Nathan, Mike, Craig, Natalie & the Astro Peak crew ⢠Ben for the SharpCap tip ⢠John & the Discord fam!
Clear skies! āØ
#astrophotography #telescope #collimation #SCT #Celestron #PlayerOne #NINA #SharpCap #astronomy
Email me at "[email protected]" with any questions/comments. Thanks for listening!
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