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Rozhen Night Plan

Up to ten targets, one night: each gets its good/marginal/poor windows (darkness × altitude × Moon × clouds, as on the single-target page), then the night is handed out five minutes at a time to whichever target is best — with hysteresis, so you get a few solid blocks of at least 30 minutes, not a flicker. Targets that never win a block are listed with the reason.

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Night of Wednesday, 10 February 2027 · astronomical night 19:21 → 05:48 (10.45 h) · Moon 17% (waxing crescent) · weather: none — the schedule is astronomy only; overall conditions unknown

3C 2733C 273 23:15–23:20: quality 0.43C 273 23:20–23:35: quality 0.53C 273 23:35–23:50: quality 0.63C 273 23:50–00:05: quality 0.73C 273 00:05–01:00: quality 0.83C 273 01:00–05:50: quality 0.93C 273 05:50–06:25: quality 0.43C 273 06:25–06:55: quality 0.1observe 3C 273 23:15–06:25schedule3C 27318:0020:0022:0000:0002:0004:0006:00

Each row is the target's quality through the night, white → amber → green for 0 → 0.3 → 0.6 → 1 (the same thresholds as poor / marginal / good). Dark blue: the schedule. Grey columns: twilight.  Download: schedule CSV · targets CSV · JSON

Schedule

localtargethoursmean quality
17:45–23:15 — nothing worth pointing at — 5.5
23:15–06:25 3C 273 7.17 0.82
06:25–07:25 — nothing worth pointing at — 1.0

Targets

targetastronomyoverallbest windowhighestMoon sep.scheduled h
3C 273 93 unknown 23:40–05:50 (good) 50.2° at 03:30 170.1° 7.17

💡 API
curl -sS "https://devops.majbase.com/rozhen-planner/plan-api?targets=M31,M42,M45,NGC%207000&date=2027-02-10"

targets: names or RA Dec, separated by commas, semicolons or newlines, at most ten. The response carries targets[] (score, verdict, best_window, windows, transit, moon_separation), schedule[] (blocks with target, start/end in UTC and local, hours, mean_quality; target: null is idle time), unscheduled[] with a why, forecast_source, warnings[]. Missing targets → 400 {"error", "code": "targets_missing"}; an unreadable date → 400 {"error", "code": "invalid_date"}.