#collimation — Public Fediverse posts
Live and recent posts from across the Fediverse tagged #collimation, aggregated by home.social.
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One of the real trouble jobs in #astronomy is collimating a reflector telescope. In particular, Maksutov-Cassegrains, like the ETX90, are tricky.
Fortunately, Escher over Cloudy Nights has posted a really useful guide.
https://www.cloudynights.com/topic/391392-dont-mess-with-etx-collimation/
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One of the real trouble jobs in #astronomy is collimating a reflector telescope. In particular, Maksutov-Cassegrains, like the ETX90, are tricky.
Fortunately, Escher over Cloudy Nights has posted a really useful guide.
https://www.cloudynights.com/topic/391392-dont-mess-with-etx-collimation/
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Stars were bright points instead of comet-like blurs. I was even able to see M13 — the grand globular #starcluster in #Hercules — though between #lightpollution and atmospheric haze, the view was low contrast but filled the field of view; I can hardly wait for better seeing! I tore down for the night happy to have the old C11 performing well and ready for some cosmic exploration. #C11 #collimation #M13 #venus #astronomy
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Stars were bright points instead of comet-like blurs. I was even able to see M13 — the grand globular #starcluster in #Hercules — though between #lightpollution and atmospheric haze, the view was low contrast but filled the field of view; I can hardly wait for better seeing! I tore down for the night happy to have the old C11 performing well and ready for some cosmic exploration. #C11 #collimation #M13 #venus #astronomy
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Frustrating night last night, trying to fix a #collimation problem I (probably) introduced on the old #C11 I acquired late last year. I worked on it today in the office using a Cheshire-style tool and it *may* be close enough now to refine using starlight. Tonight's the last night expected to offer clear skies for several nights to come! Hate to sacrifice good nights to this issue but it must be resolved -- the #telescope is worthless without this fix!
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Frustrating night last night, trying to fix a #collimation problem I (probably) introduced on the old #C11 I acquired late last year. I worked on it today in the office using a Cheshire-style tool and it *may* be close enough now to refine using starlight. Tonight's the last night expected to offer clear skies for several nights to come! Hate to sacrifice good nights to this issue but it must be resolved -- the #telescope is worthless without this fix!
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X-Rays Are the Next Frontier in Space Communications - Hundreds of years from now, the story of humanity’s inevitable spread across the solar system will b... more: https://hackaday.com/2019/05/06/x-rays-are-the-next-frontier-in-space-communications/ #hackadaycolumns #commincations #photelectrons #photocathode #collimation #spacecraft #bandwidth #microwave #satellite #tungsten #target #space #x-ray #uv