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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, 17 February 2027 · astronomical night 19:29 → 05:39 (10.18 h) · Moon 87% (waxing gibbous) · weather: none — the schedule is astronomy only; overall conditions unknown

HD 189733HD 189733 05:00–05:15: quality 0.4HD 189733 05:15–05:30: quality 0.5HD 189733 05:30–05:35: quality 0.6HD 189733 05:35–05:40: quality 0.7HD 189733 05:40–05:45: quality 0.3HD 189733 05:45–06:15: quality 0.4HD 189733 06:15–06:45: quality 0.1observe HD 189733 05:00–06:15scheduleHD 18973318:0020:0022:0000:0002:0004:0006:00

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
17:55–05:00 — nothing worth pointing at — 11.08
05:00–06:15 HD 189733 1.25 0.45
06:15–07:15 — nothing worth pointing at — 1.0

Targets

targetastronomyoverallbest windowhighestMoon sep.scheduled h
HD 189733 10 unknown 05:30–05:40 (good) 71.1° at 10:30 130.8° 1.25

💡 API
curl -sS "https://devops.majbase.com/rozhen-planner/plan-api?targets=M31,M42,M45,NGC%207000&date=2027-02-17"

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"}.