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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 Saturday, 17 April 2038 · astronomical night 21:45 → 04:55 (7.17 h) · Moon 96% (waxing gibbous) · weather: none — the schedule is astronomy only; overall conditions unknown

3C 2733C 273 21:10–21:50: quality 0.23C 273 21:50–04:10: quality 0.33C 273 04:10–04:30: quality 0.2observe 3C 273 21:50–23:15observe 3C 273 00:35–03:50schedule3C 2733C 27322:0000:0002:0004:0006:00

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
20:00–21:50 — nothing worth pointing at — 1.83
21:50–23:15 3C 273 1.42 0.31
23:15–00:35 — nothing worth pointing at — 1.33
00:35–03:50 3C 273 3.25 0.32
03:50–06:40 — nothing worth pointing at — 2.83

Targets

targetastronomyoverallbest windowhighestMoon sep.scheduled h
3C 273 18 unknown 00:35–03:50 (marginal) 50.1° at 00:10 0.5° 4.67

💡 API
curl -sS "https://devops.majbase.com/rozhen-planner/plan-api?targets=M31,M42,M45,NGC%207000&date=2038-04-17"

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"}.