3 ms·

Hello, author here ! Other interesting builds or projects going on in the french amateur telescope maker community : - Sunscan, by the STAROS team : a fully

Hello, author here ! Other interesting builds or projects going on in the french amateur telescope maker community : - Sunscan, by the STAROS team : a fully integrated open-source solar imaging kit : https://www.sunscan.net/fr - Eric Royer's binocular 24" dobson : http://www.astrosurf.com/topic/124758-bino600/ - The Slim400 by Laurent Bourrasseau : https://www.cloudynights.com/forums/topic/920950-the-slim400/ - Astrowl, an electronically enhanced astronomy kit : http://www.astrosurf.com/topic/151807-projet-astrowl-de-visuel-assist%C3%A9/ - The smallest, an open-source 6" portable dobson : http://www.astrosurf.com/topic/176898-un-dobson-150-f5-facile-%C3%A0-imprimer-et-assez-compact/ - A dedicated astrophotography power supply : https://github.com/Antiath/Open-Power-Box-XXL Of course there are many others but those are the one on the top of my head now

9Mfhf34U 10mo ago
Do you have an RSS feed just for the astronomy posts on your blog?
- chantepierre 10mo ago
  No, but that should be quite straightforward to add with Astro, I will check that. Edit : it seems that I now do have one : https://lucassifoni.info/blog/tag/astronomy/rss.xml I am not an RSS user myself, I tested it with an online reader and it should be working.
  - 9Mfhf34U 10mo ago
    Cool, thank you very much. I just tried it, the links don't seem to be working. I get sent to https://lucassifoni.info/miniscope-tiny-telescope.mdx https://lucassifoni.info/miniscope-tiny-telescope.mdx for example
fransje26 10mo ago
Thank you for the links and the write-up! I'll share them with a friend who loves astronomy and who loves to organize star-gazing events that he livens up with his Unistellar telescope.
waerhert 10mo ago
Very cool, thanks for sharing! Any ideas of adding 2 gimbal motors to this for GOTO? MS6010v3 or something lighter would seem like a good fit.
hrldcpr 10mo ago
clickable links in case it's helpful for anyone: - Sunscan, by the STAROS team : a fully integrated open-source solar imaging kit : https://www.sunscan.net/fr https://www.sunscan.net/fr - Eric Royer's binocular 24" dobson : http://www.astrosurf.com/topic/124758-bino600/ http://www.astrosurf.com/topic/124758-bino600/ - The Slim400 by Laurent Bourrasseau : https://www.cloudynights.com/forums/topic/920950-the-slim400/ https://www.cloudynights.com/forums/topic/920950-the-slim400... - Astrowl, an electronically enhanced astronomy kit : http://www.astrosurf.com/topic/151807-projet-astrowl-de-visuel-assist%C3%A9/ http://www.astrosurf.com/topic/151807-projet-astrowl-de-visu... - The smallest, an open-source 6" portable dobson : http://www.astrosurf.com/topic/176898-un-dobson-150-f5-facile-%C3%A0-imprimer-et-assez-compact/ http://www.astrosurf.com/topic/176898-un-dobson-150-f5-facil... - A dedicated astrophotography power supply : https://github.com/Antiath/Open-Power-Box-XXL https://github.com/Antiath/Open-Power-Box-XXL
aidenn0 10mo ago
You wrote up "of course I refigured it" as if refiguring mirrors is something any reader would know how to do. I (and I suspect most of HN) does not; have you (or others) written on this topic?
- chantepierre 10mo ago
  Sure ! Here are a few links : https://stellafane.org/stellafane-main/tm/index.html https://stellafane.org/stellafane-main/tm/index.html How to make a telescope, by Jean Texerau, which was the absolute bible of this field : https://rexresearch1.com/AstronomyTelescopesLibrary/HowMakeTelescopeTexereau.pdf https://rexresearch1.com/AstronomyTelescopesLibrary/HowMakeT... Here is a talk (in french, but maybe the auto-subtitling would work?) I recorded that overviews the whole process (2h30 though, and lacks info on the Bath) : https://www.youtube.com/watch?v=Wt7lBLS0ueg https://www.youtube.com/watch?v=Wt7lBLS0ueg Here is Gordon Waite's youtube channel which actually shows a lot of the moves : https://www.youtube.com/@GordonWaite/videos https://www.youtube.com/@GordonWaite/videos Best resource on the Bath (french, but should translate well) : https://gap47.astrosurf.com/index.php/technique/optique-instruments/controles-optiques/interferometre-de-bath/ https://gap47.astrosurf.com/index.php/technique/optique-inst...
  - aidenn0 10mo ago
    Merci!
  - clusterhacks 10mo ago
    Wow, thanks for the link to Texerau. I had no idea a pdf was floating around and have wanted this book for some time. You video looks interesting, especially the part around Ronchi and Focault testing. I have 'Understanding Focault' but have to admit that reading it doesn't give me confidence. One question I always think about is how much time and effort a "one-time" mirror maker should plan on making to exceed the quality of a generic 8" or 10" F/5-F/7 available from the Chinese mirror makers. Zambuto seems to imply that whatever magic happens for his mirrors might be in very long, machine driven polishing to smooth out the final surface imperfections that cause scatter. With his retirement and with few mirror makers in the US, it seems like options for buying "high end" mirrors in the 6"- 10" size are very limited. I have been debating an 8" F/7 and would love to just purchase a relatively high quality mirror, but most of the mirror makers seem more taken with significantly larger mirrors.

9Mfhf34U 10mo ago

Do you have an RSS feed just for the astronomy posts on your blog?

chantepierre 10mo ago
No, but that should be quite straightforward to add with Astro, I will check that. Edit : it seems that I now do have one : https://lucassifoni.info/blog/tag/astronomy/rss.xml I am not an RSS user myself, I tested it with an online reader and it should be working.
- 9Mfhf34U 10mo ago
  Cool, thank you very much. I just tried it, the links don't seem to be working. I get sent to https://lucassifoni.info/miniscope-tiny-telescope.mdx https://lucassifoni.info/miniscope-tiny-telescope.mdx for example

fransje26 10mo ago

Thank you for the links and the write-up! I'll share them with a friend who loves astronomy and who loves to organize star-gazing events that he livens up with his Unistellar telescope.

waerhert 10mo ago

Very cool, thanks for sharing! Any ideas of adding 2 gimbal motors to this for GOTO? MS6010v3 or something lighter would seem like a good fit.

hrldcpr 10mo ago

clickable links in case it's helpful for anyone: - Sunscan, by the STAROS team : a fully integrated open-source solar imaging kit : https://www.sunscan.net/fr https://www.sunscan.net/fr - Eric Royer's binocular 24" dobson : http://www.astrosurf.com/topic/124758-bino600/ http://www.astrosurf.com/topic/124758-bino600/ - The Slim400 by Laurent Bourrasseau : https://www.cloudynights.com/forums/topic/920950-the-slim400/ https://www.cloudynights.com/forums/topic/920950-the-slim400... - Astrowl, an electronically enhanced astronomy kit : http://www.astrosurf.com/topic/151807-projet-astrowl-de-visuel-assist%C3%A9/ http://www.astrosurf.com/topic/151807-projet-astrowl-de-visu... - The smallest, an open-source 6" portable dobson : http://www.astrosurf.com/topic/176898-un-dobson-150-f5-facile-%C3%A0-imprimer-et-assez-compact/ http://www.astrosurf.com/topic/176898-un-dobson-150-f5-facil... - A dedicated astrophotography power supply : https://github.com/Antiath/Open-Power-Box-XXL https://github.com/Antiath/Open-Power-Box-XXL

aidenn0 10mo ago

You wrote up "of course I refigured it" as if refiguring mirrors is something any reader would know how to do. I (and I suspect most of HN) does not; have you (or others) written on this topic?

chantepierre 10mo ago
Sure ! Here are a few links : https://stellafane.org/stellafane-main/tm/index.html https://stellafane.org/stellafane-main/tm/index.html How to make a telescope, by Jean Texerau, which was the absolute bible of this field : https://rexresearch1.com/AstronomyTelescopesLibrary/HowMakeTelescopeTexereau.pdf https://rexresearch1.com/AstronomyTelescopesLibrary/HowMakeT... Here is a talk (in french, but maybe the auto-subtitling would work?) I recorded that overviews the whole process (2h30 though, and lacks info on the Bath) : https://www.youtube.com/watch?v=Wt7lBLS0ueg https://www.youtube.com/watch?v=Wt7lBLS0ueg Here is Gordon Waite's youtube channel which actually shows a lot of the moves : https://www.youtube.com/@GordonWaite/videos https://www.youtube.com/@GordonWaite/videos Best resource on the Bath (french, but should translate well) : https://gap47.astrosurf.com/index.php/technique/optique-instruments/controles-optiques/interferometre-de-bath/ https://gap47.astrosurf.com/index.php/technique/optique-inst...
- aidenn0 10mo ago
  Merci!
- clusterhacks 10mo ago
  Wow, thanks for the link to Texerau. I had no idea a pdf was floating around and have wanted this book for some time. You video looks interesting, especially the part around Ronchi and Focault testing. I have 'Understanding Focault' but have to admit that reading it doesn't give me confidence. One question I always think about is how much time and effort a "one-time" mirror maker should plan on making to exceed the quality of a generic 8" or 10" F/5-F/7 available from the Chinese mirror makers. Zambuto seems to imply that whatever magic happens for his mirrors might be in very long, machine driven polishing to smooth out the final surface imperfections that cause scatter. With his retirement and with few mirror makers in the US, it seems like options for buying "high end" mirrors in the 6"- 10" size are very limited. I have been debating an 8" F/7 and would love to just purchase a relatively high quality mirror, but most of the mirror makers seem more taken with significantly larger mirrors.