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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 Monday, 15 June 2026 · astronomical night 23:08 → 03:35 (4.45 h) · Moon 1% (new moon) · weather: ERA5 history

M31M31 01:50–02:00: quality 0.2M31 02:00–02:15: quality 0.3M31 02:15–02:35: quality 0.4M31 02:35–03:00: quality 0.5M31 03:00–03:40: quality 0.7M31 03:40–03:50: quality 0.3M31 03:50–04:00: quality 0.4M31 04:00–04:30: quality 0.1observe M31 02:00–04:00scheduleM3122:0000:0002:0004:00

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
20:55–02:00 — nothing worth pointing at — 5.08
02:00–04:00 M31 2.0 0.49
04:00–05:50 — nothing worth pointing at — 1.83

Targets

targetastronomyoverallbest windowhighestMoon sep.scheduled h
M31 Andromeda Galaxy 37 23 03:00–03:40 (good) 89.5° at 08:25 69.8° 2.0

💡 API
curl -sS "https://devops.majbase.com/rozhen-planner/plan-api?targets=M31,M42,M45,NGC%207000&date=2026-06-15"

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"}.