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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 Wednesday, 18 November 2026 · astronomical night 18:35 → 05:37 (11.04 h) · Moon 64% (waxing gibbous) · weather: none — the schedule is astronomy only; overall conditions unknown

M45M45 18:45–18:55: quality 0.3M45 18:55–19:10: quality 0.4M45 19:10–19:30: quality 0.5M45 19:30–20:25: quality 0.6M45 20:25–21:55: quality 0.7M45 21:55–01:05: quality 0.8M45 01:05–03:00: quality 1.0M45 03:00–04:20: quality 0.9M45 04:20–05:10: quality 0.8M45 05:10–05:20: quality 0.7M45 05:20–05:35: quality 0.6M45 05:35–05:40: quality 0.5M45 05:40–05:55: quality 0.2observe M45 18:45–05:40scheduleM4518:0020:0022:0000:0002:0004:0006:00

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
16:55–18:45 — nothing worth pointing at — 1.83
18:45–05:40 M45 10.92 0.79
05:40–07:15 — nothing worth pointing at — 1.58

Targets

targetastronomyoverallbest windowhighestMoon sep.scheduled h
M45 Seven Sisters 100 unknown 19:40–05:30 (good) 72.5° at 00:15 76.8° 10.92

💡 API
curl -sS "https://devops.majbase.com/rozhen-planner/plan-api?targets=M31,M42,M45,NGC%207000&date=2026-11-18"

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"}.