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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 Tuesday, 11 November 2025 · astronomical night 18:39 → 05:30 (10.85 h) · Moon 53% (waning gibbous) · weather: ERA5 history

M45M45 19:10–19:15: quality 0.3M45 19:15–19:30: quality 0.4M45 19:30–19:50: quality 0.5M45 19:50–20:00: quality 0.6M45 20:00–20:15: quality 0.7M45 20:15–21:00: quality 0.8M45 21:00–22:05: quality 0.9M45 22:05–23:10: quality 1.0M45 23:10–00:15: quality 0.9M45 00:15–03:15: quality 0.8M45 03:15–04:50: quality 0.7M45 04:50–05:35: quality 0.6M45 05:35–05:45: quality 0.3M45 05:45–06:05: quality 0.2M45 06:05–06:15: quality 0.1observe M45 19:10–05:35scheduleM4518:0020:0022:0000:0002:0004:0006:00

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
17:00–19:10 — nothing worth pointing at — 2.17
19:10–05:35 M45 10.42 0.78
05:35–07:10 — nothing worth pointing at — 1.58

Targets

targetastronomyoverallbest windowhighestMoon sep.scheduled h
M45 Seven Sisters 100 98 19:55–05:30 (good) 72.5° at 00:45 76.2° 10.42

💡 API
curl -sS "https://devops.majbase.com/rozhen-planner/plan-api?targets=M31,M42,M45,NGC%207000&date=2025-11-11"

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"}.