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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.

Try: an autumn deep-sky night  ·  ← previous night · next night →

Night of Tuesday, 02 May 2028 · astronomical night 22:09 → 04:25 (6.28 h) · Moon 59% (waxing gibbous) · weather: none — the schedule is astronomy only; overall conditions unknown

3C 2733C 273 20:55–21:30: quality 0.13C 273 21:30–22:10: quality 0.33C 273 22:10–02:45: quality 0.63C 273 02:45–03:00: quality 0.53C 273 03:00–03:05: quality 0.63C 273 03:05–03:20: quality 0.53C 273 03:20–03:25: quality 0.4observe 3C 273 22:10–03:25schedule3C 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
20:20–22:10 — nothing worth pointing at — 1.83
22:10–03:25 3C 273 5.25 0.6
03:25–06:15 — nothing worth pointing at — 2.83

Targets

targetastronomyoverallbest windowhighestMoon sep.scheduled h
3C 273 54 unknown 22:50–02:35 (good) 50.2° at 23:05 42.6° 5.25

💡 API
curl -sS "https://devops.majbase.com/rozhen-planner/plan-api?targets=M31,M42,M45,NGC%207000&date=2028-05-02"

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"}.