Observing Journal
What the numbers can't record: how the night felt, what went wrong, what to try next time. Entries pin to observing nights — the measured subs and integration ride along automatically.
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Best night of the season so far
Astro dark barely 5 hours this close to solstice but the air was dead still — HFR held 2.3 all night. Autofocus bump around 02:00 when the temp dropped through the dew point; recovered on its own. The Cygnus Wall is finally showing structure in Ha. Two more clear nights and the SHO stack is done.
High cloud rolled in early
Forecast said clear until 03:00; the cirrus had other plans. Kept the OIII subs shot before midnight, binned the rest. Guiding stayed under 0.6″ even through the murk — the new cable routing is working.
Ordered a 0.3mm spacer to chase the top-right corner tilt — eccentricity trend on the health page has been creeping for two weeks. Also flocked the dew shield interior.