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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 Friday, 28 August 2026 · astronomical night 21:40 → 05:04 (7.39 h) · Moon 99% (full moon) · weather: ERA5 history

M31M31 21:05–21:15: quality 0.1M31 21:15–21:45: quality 0.2M31 21:45–00:20: quality 0.4M31 00:20–01:50: quality 0.5M31 01:50–02:50: quality 0.4M31 02:50–03:00: quality 0.5M31 03:00–03:40: quality 0.4M31 03:40–04:00: quality 0.5M31 04:00–04:20: quality 0.3M31 04:20–05:00: quality 0.4M31 05:00–05:05: quality 0.5M31 05:05–05:40: quality 0.2M31 05:40–05:45: quality 0.3M31 05:45–06:15: quality 0.1observe M31 21:45–05:05scheduleM3122:0000:0002:0004:0006:00

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
20:00–21:45 — nothing worth pointing at — 1.75
21:45–05:05 M31 7.33 0.43
05:05–06:45 — nothing worth pointing at — 1.67

Targets

targetastronomyoverallbest windowhighestMoon sep.scheduled h
M31 Andromeda Galaxy 50 46 21:45–05:05 (marginal) 89.6° at 03:35 51.6° 7.33

💡 API
curl -sS "https://devops.majbase.com/rozhen-planner/plan-api?targets=M31,M42,M45,NGC%207000&date=2026-08-28"

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"}.