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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, 15 November 2025 · astronomical night 18:36 → 05:34 (10.97 h) · Moon 16% (waning crescent) · weather: ERA5 history

M31M31 17:35–18:05: quality 0.1M31 18:05–18:40: quality 0.5M31 18:40–20:00: quality 1.0M31 20:00–21:00: quality 0.8M31 21:00–22:00: quality 1.0M31 22:00–23:00: quality 0.9M31 23:00–00:00: quality 0.3M31 00:00–00:55: quality 0.7M31 00:55–01:00: quality 0.6M31 03:00–03:20: quality 0.4M31 03:20–03:50: quality 0.3M31 03:50–04:00: quality 0.2M31 04:00–04:05: quality 0.3observe M31 18:05–01:00observe M31 03:00–03:35observe M31 04:00–04:05scheduleM3118:0020:0022:0000:0002:0004:0006:00

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
17:00–18:05 — nothing worth pointing at — 1.08
18:05–01:00 M31 6.92 0.77
01:00–03:00 — nothing worth pointing at — 2.0
03:00–03:35 M31 0.58 0.36
03:35–04:00 — nothing worth pointing at — 0.42
04:00–04:05 M31 0.08 0.33
04:05–07:15 — nothing worth pointing at — 3.17

Targets

targetastronomyoverallbest windowhighestMoon sep.scheduled h
M31 Andromeda Galaxy 100 63 18:40–23:00 (good) 89.7° at 21:25 142.5° 7.58

💡 API
curl -sS "https://devops.majbase.com/rozhen-planner/plan-api?targets=M31,M42,M45,NGC%207000&date=2025-11-15"

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"}.