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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, 01 September 2026 · astronomical night 21:32 → 05:09 (7.61 h) · Moon 76% (waning gibbous) · weather: ERA5 history

NGC 7000NGC 7000 20:25–21:00: quality 0.1NGC 7000 21:00–21:35: quality 0.4NGC 7000 21:35–21:45: quality 0.9NGC 7000 21:45–02:00: quality 0.7NGC 7000 02:00–03:00: quality 0.6NGC 7000 03:00–04:00: quality 0.5NGC 7000 04:00–04:05: quality 0.4NGC 7000 04:05–05:00: quality 0.3NGC 7000 05:00–05:10: quality 0.4NGC 7000 05:10–05:50: quality 0.2observe NGC 7000 21:00–05:10scheduleNGC 700020:0022:0000:0002:0004:0006:00

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
19:50–21:00 — nothing worth pointing at — 1.17
21:00–05:10 NGC 7000 8.17 0.59
05:10–06:50 — nothing worth pointing at — 1.67

Targets

targetastronomyoverallbest windowhighestMoon sep.scheduled h
NGC 7000 North America Nebula 100 88 21:35–03:00 (good) 87.2° at 23:35 69.5° 8.17

💡 API
curl -sS "https://devops.majbase.com/rozhen-planner/plan-api?targets=M31,M42,M45,NGC%207000&date=2026-09-01"

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"}.