EdgeHD and SteelTrack a Marriage Not Made in Heaven
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By haydencoffin
(also posted in a reply thread elsewhere) Hello there! I'm a newbie to this forum so I apologise if my question has been answered already elsewhere. I've been using a TAL200K for about 15 years but getting fed up with the rack and pinion focuser so i treated myself to beautifully made in Germany 2" thread adaptor plate and a generic 10:1 SGT crayford focuser ( these are branded Skywatcher, Lacerta, OVL but I think they are all the same. ) turns out this is much longer than the original TAL and only near terrestrial objects can be bought into focus. Unless there's an easy fix i'm sending the focuser back for a refund, soooo, is there a low profile crayford or other smooth action focuser that will fit the 50.8mm threaded plate which has a similar low profile to the original TAL ? best wishes.
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By Mike Read
Morning,
I currently have a Celestron 9.25" SCT and am in the process of upgrading the focuser to baader steeltrack. I have the f/6.3 FR on back order. My question is: where will the FR fit in the image train? Is it compatible?
Thanks Mike
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By Greg H
Hello all, my first post here.
I have a Celestron CPC 925, which I bought new in 2008. I used it mainly for visual and some casual astrophotography. In about 2012 the arival of my daughter and busy career took me away from astronomy and the scope was left to gather dust. My interest in astronomy was revitalised by Comet Neowise in 2020 and I've started to get into more serious astrophotography.
But, the scope has an optical artifact/defect in the out-of-focus disk of stars that looks like a crack.
I can see no obvious physical damage to the corrector plate or primary mirror. I've not yet worked up the corrage to take off the corrector plate to inspect the secondary.
I've attached some images, using Procyon, to illustrate the issue. They run from way out of focus to in focus.
I wonder if anyone has any suggestions as to what could be causing this and whether it is a significant problem.
Many thanks.
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By Ade Turner
Now I’ve managed to sort out control of my EQ6-R Pro using Stellarium via EQASCOM, I’m working my way through the other equipment I want to control from my Windows 7 laptop.
I’m stuck trying to get my Celestron focuser to be recognised. This is what I’ve done so far:
Downloaded the Celestron Focuser Utility Program (.exe file) from here: https://www.celestron.com/pages/manuals-software Also downloaded the December 2019 USB ASCOM driver set up from above. I ran the ASCOM driver set up and restarted the laptop. Connected focuser direct to laptop via USB. The focuser’s power light shows red and in Windows control panel it recognises the device as ‘Celestron Focuser’ but indicates no driver present. Ran the Celestron focuser utility program hoping it would connect and install the right driver so I could calibrate, but it can’t detect the focuser at all. Finally, ran APT to see if I could connect by choosing the ASCOM driver under ‘Gear’ but this doesn’t work either. Stuck now. I’m guessing I need to somehow ‘tell’ Windows where the driver is...?
Any thoughts? Thanks everyone
🙂
EDIT: I have previously had this focuser working correctly both with StarSense handset and via ASCOM (Celestron unified driver) through the aux on my old Evolution mount. However, now I’ve changed to a Sky-Watcher mount, I need it to function direct through USB.
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By MarsG76
This is a close up of IC 2944, also known as the Running Chicken Nebula or the λ Centauri Nebula, with the Bok Globules visible in the upper third of the frame. IC2944 is an open cluster with an associated emission nebula found in the constellation Centaurus, near the star λ Centauri. This image was exposed using a Cooled and full spectrum astro modded DSLR through a 8" SCT at it's native 2032mm (f10) focal length. The total exposure time was 8 hours and 25 minutes, through a UV/IR filter to capture natural colour data.
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