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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 Saturday, 27 March 2027 · astronomical night 20:15 → 05:37 (8.37 h) · Moon 70% (waning gibbous) · weather: none — the schedule is astronomy only; overall conditions unknown

HD 189733HD 189733 02:35–02:40: quality 0.3HD 189733 02:40–04:00: quality 0.4HD 189733 04:00–04:15: quality 0.5HD 189733 04:15–05:15: quality 0.6HD 189733 05:15–05:40: quality 0.7HD 189733 05:40–06:10: quality 0.3HD 189733 06:10–06:15: quality 0.4HD 189733 06:15–06:45: quality 0.1observe HD 189733 02:35–06:15scheduleHD 18973320:0022:0000:0002:0004:0006:00

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
18:40–02:35 — nothing worth pointing at — 7.92
02:35–06:15 HD 189733 2.67 0.52
06:15–07:15 — nothing worth pointing at — 1.0

Targets

targetastronomyoverallbest windowhighestMoon sep.scheduled h
HD 189733 24 unknown 04:25–05:40 (good) 71.1° at 09:00 68.3° 2.67

💡 API
curl -sS "https://devops.majbase.com/rozhen-planner/plan-api?targets=M31,M42,M45,NGC%207000&date=2027-03-27"

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"}.