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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, 17 November 2026 · astronomical night 18:35 → 05:36 (11.02 h) · Moon 54% (waxing gibbous) · weather: none — the schedule is astronomy only; overall conditions unknown

M42M42 22:25–22:40: quality 0.4M42 22:40–22:55: quality 0.5M42 22:55–23:10: quality 0.6M42 23:10–23:35: quality 0.7M42 23:35–00:30: quality 0.8M42 00:30–03:55: quality 0.9M42 03:55–05:05: quality 0.8M42 05:05–05:20: quality 0.7M42 05:20–05:35: quality 0.6M42 05:35–05:40: quality 0.5M42 05:40–05:45: quality 0.3M42 05:45–06:00: quality 0.2observe M42 22:25–05:40scheduleM4218:0020:0022:0000:0002:0004:0006:00

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
16:55–22:25 — nothing worth pointing at — 5.5
22:25–05:40 M42 7.25 0.79
05:40–07:15 — nothing worth pointing at — 1.58

Targets

targetastronomyoverallbest windowhighestMoon sep.scheduled h
M42 Great Orion Nebula 89 unknown 23:05–05:30 (good) 42.9° at 02:10 109.9° 7.25

💡 API
curl -sS "https://devops.majbase.com/rozhen-planner/plan-api?targets=M31,M42,M45,NGC%207000&date=2026-11-17"

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"}.