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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, 18 May 2027 · astronomical night 22:34 → 04:00 (5.43 h) · Moon 97% (full moon) · weather: none — the schedule is astronomy only; overall conditions unknown

HD 189733HD 189733 00:10–00:20: quality 0.3HD 189733 00:20–00:35: quality 0.4HD 189733 00:35–00:55: quality 0.5HD 189733 00:55–01:45: quality 0.6HD 189733 01:45–03:10: quality 0.7HD 189733 03:10–04:05: quality 0.8HD 189733 04:05–04:45: quality 0.4HD 189733 04:45–04:50: quality 0.5HD 189733 04:50–05:30: quality 0.2observe HD 189733 00:10–04:50scheduleHD 18973322:0000:0002:0004:00

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
20:35–00:10 — nothing worth pointing at — 3.58
00:10–04:50 HD 189733 4.67 0.61
04:50–06:00 — nothing worth pointing at — 1.17

Targets

targetastronomyoverallbest windowhighestMoon sep.scheduled h
HD 189733 60 unknown 01:00–04:05 (good) 71.1° at 05:35 92.7° 4.67

💡 API
curl -sS "https://devops.majbase.com/rozhen-planner/plan-api?targets=M31,M42,M45,NGC%207000&date=2027-05-18"

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"}.