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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 Sunday, 16 November 2025 · astronomical night 18:36 → 05:35 (10.99 h) · Moon 10% (waning crescent) · weather: ERA5 history

M45M45 18:50–19:00: quality 0.4M45 19:00–19:20: quality 0.3M45 19:20–19:40: quality 0.4M45 19:40–21:00: quality 0.5M45 21:00–22:00: quality 0.2M45 23:00–00:00: quality 0.5M45 01:00–02:00: quality 0.3M45 05:00–05:20: quality 0.4M45 05:20–05:40: quality 0.3M45 05:40–06:00: quality 0.1observe M45 18:50–19:00observe M45 19:05–21:00observe M45 23:00–00:00observe M45 01:00–02:00observe M45 05:00–05:30scheduleM45M45M4518:0020:0022:0000:0002:0004:0006:00

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
16:55–18:50 — nothing worth pointing at — 1.92
18:50–19:00 M45 0.17 0.38
19:00–19:05 — nothing worth pointing at — 0.08
19:05–21:00 M45 1.92 0.44
21:00–23:00 — nothing worth pointing at — 2.0
23:00–00:00 M45 1.0 0.52
00:00–01:00 — nothing worth pointing at — 1.0
01:00–02:00 M45 1.0 0.33
02:00–05:00 — nothing worth pointing at — 3.0
05:00–05:30 M45 0.5 0.36
05:30–07:15 — nothing worth pointing at — 1.75

Targets

targetastronomyoverallbest windowhighestMoon sep.scheduled h
M45 Seven Sisters 100 23 19:05–21:00 (marginal) 72.5° at 00:25 138.6° 4.58
💡 API 
curl -sS "https://devops.majbase.com/rozhen-planner/plan-api?targets=M31,M42,M45,NGC%207000&date=2025-11-16"

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"}.