Sunday, April 19, 2026

20260418 Another Clear Night, marathon and also Gemini assisted collimation!

Come back from a gathering and it's not yet dark.  Good thing and bad thing, good is that I miss nothing, bad is that dark skies are getting shorter and shorter.

Let me do M103 first, this is an open cluster, should be easier with not-yet-dark-sky.  

It's kind of blocked by nearby stuff, so I relocated my tripod a bit to see if that could be done.  A bit marginal right now, see if I can capture it tonight or else it would mean next season!

Part of the field of view is blocked, got it badly.


And then M59 and M60 within the same frame:


Relocated the tripod to capture M49, not bad:



and then M61, the last target of the night:



I should be collimating my Meade 8" SCT but it's Sunday tomorrow so I better sleep earlier.  Let me set a deadline of 10:30pm.

Finally I did it with my manual SVBony mount, very nice.  I did AI assisted collimation by using Gemini to analyse the out of focus image and diffraction pattern.  The view is confirmed to be great on Jupiter.

There was some pinched optics formerly and it should now be fixed.


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