Aleksey Shipilëv
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shipilev.bsky.social
Aleksey Shipilëv
@shipilev.bsky.social
In love-hate relationship with machines. Currently: OpenJDK, AWS. "Trust me, it's really me" backlink: https://shipilev.net/#social
Too bad, EAF is a major quality of life improvement!
November 11, 2025 at 9:26 AM
Alternative way to carry this bundle is:
November 9, 2025 at 8:47 AM
You know what, I might actually enjoy this deep-sky rig quite a bit. This thing is seriously fast, so that it gives me something like *this* with only 1.5 hrs total integration time and absolutely rushed post-processing with the simplest workflow I could imagine.
November 6, 2025 at 9:55 PM
Look, in the field where "metal" is everything beyond hydrogen and helium, Moon astrophotography ("astro", he-he) is planetary work :P
November 6, 2025 at 8:16 AM
Both are on AstroBin now: app.astrobin.com/i/o6ojbu, app.astrobin.com/i/v5uivn -- for future reference, as I should stop betting that BlueSky image processors do the right thing :)
October 22, 2025 at 6:02 PM
Yes, this is why I loved it. But its pentaprism focuser is ass, especially coming from EAF-driven fine focusing elsewhere, and etalon uniformity leaves wanting. I am thinking this rig is viable visually still, but if I go back to full solar scope assemblies, I'll go for Lunt (pressure tuned) ones.
October 22, 2025 at 5:21 AM
Oh, actually aligning on the comet shows that the tail develops minute after minute, so 1-hour stacking is hiding some details. Double-digit MB video here: share.shipilev.net/astro/2025-1...
share.shipilev.net
October 20, 2025 at 8:26 AM
Navigation lights from wing tips, yes. You can guess which way the aircraft flies from there.
October 20, 2025 at 7:00 AM
Very crude stacking attempt to see if it even works. The airplane trail is... er... for scale. This thing is pretty fun to work with: the comet moves across the star field pretty quickly, so normal stacking techniques produce a mess. You need to get creative with star masks, etc.
October 19, 2025 at 9:41 PM
Since folks are wondering how serious I am about this, note that 3 out of 4 figures in this one are from my own Java Memory Model talks. So this is as trustworthy as my usual tech jokes can get!
October 13, 2025 at 6:22 PM
(On a side note, none of the astrometric solvers I have seem to be able to deal with the simple fact that my f/24 telescope has 57.6 meter focal length, and that my camera has 0.04"/px resolution.)
October 11, 2025 at 11:45 AM