Ah, the collimation is proceeding. For the initial (coarse) collimation, apparently all you have to do is adjust the knobs so that all 18 spots coalesce into one! Easy peasy (heh). Then, presumably, will come some finer adjustments?
https://news.yahoo.com/nasa-james-webb- ... 34131.html
Where is James Webb
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AntennaGuy
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Re: Where is James Webb
* Meade 323 refractor on a manual equatorial mount.
* Celestron C6 SCT on a Twilight 1 Alt-Az mount
Prof. Barnhardt to Klaatu in The Day the Earth Stood Still: "There are several thousand questions I'd like to ask you.”
* Celestron C6 SCT on a Twilight 1 Alt-Az mount
Prof. Barnhardt to Klaatu in The Day the Earth Stood Still: "There are several thousand questions I'd like to ask you.”
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UlteriorModem
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Re: Where is James Webb
Heh.. my reflectors only have three knobs on each mirror and it's still a struggle to get them to line up!AntennaGuy wrote: ↑Sun Feb 13, 2022 12:24 am Ah, the collimation is proceeding. For the initial (coarse) collimation, apparently all you have to do is adjust the knobs so that all 18 spots coalesce into one! Easy peasy (heh). Then, presumably, will come some finer adjustments?
https://news.yahoo.com/nasa-james-webb- ... 34131.html
Tom
Current Equipment:
Mount: Celestron CGX-L
Scope: 130mm f7 APO
Cam: ASI071mc-pro
Current Equipment:
Mount: Celestron CGX-L
Scope: 130mm f7 APO
Cam: ASI071mc-pro
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AntennaGuy
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Re: Where is James Webb
Looks like there's some astigmatism to correct in each image, prior to aligning them all. Yeah, I really hate it when that happens to my 18 reflector telescope array... https://www.republicworld.com/science/s ... eshow.html
* Meade 323 refractor on a manual equatorial mount.
* Celestron C6 SCT on a Twilight 1 Alt-Az mount
Prof. Barnhardt to Klaatu in The Day the Earth Stood Still: "There are several thousand questions I'd like to ask you.”
* Celestron C6 SCT on a Twilight 1 Alt-Az mount
Prof. Barnhardt to Klaatu in The Day the Earth Stood Still: "There are several thousand questions I'd like to ask you.”
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UlteriorModem
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Re: Where is James Webb
It's cool that each cell 'shape' can be changed as well as tilt and elevation. Hopefully they will get it sorted out and collimated.AntennaGuy wrote: ↑Tue Feb 22, 2022 8:17 pm Looks like there's some astigmatism to correct in each image, prior to aligning them all. Yeah, I really hate it when that happens to my 18 reflector telescope array... https://www.republicworld.com/science/s ... eshow.html
Tom
Current Equipment:
Mount: Celestron CGX-L
Scope: 130mm f7 APO
Cam: ASI071mc-pro
Current Equipment:
Mount: Celestron CGX-L
Scope: 130mm f7 APO
Cam: ASI071mc-pro
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helicon
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Re: Where is James Webb
Need a cheshire to do the job. 
-Michael
Refractors: ES AR152 f/6.5 Achromat on Twilight II, Celestron 102mm XLT f/9.8 on Celestron Heavy Duty Alt Az mount, KOWA 90mm spotting scope
Binoculars: Celestron SkyMaster 15x70, Bushnell 10x50
Eyepieces: Various, GSO Superview, 9mm Plossl, Celestron 25mm Plossl
Camera: ZWO ASI 120
Naked Eye: Two Eyeballs
Latitude: 48.7229° N
Refractors: ES AR152 f/6.5 Achromat on Twilight II, Celestron 102mm XLT f/9.8 on Celestron Heavy Duty Alt Az mount, KOWA 90mm spotting scope
Binoculars: Celestron SkyMaster 15x70, Bushnell 10x50
Eyepieces: Various, GSO Superview, 9mm Plossl, Celestron 25mm Plossl
Camera: ZWO ASI 120
Naked Eye: Two Eyeballs
Latitude: 48.7229° N
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