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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 Thursday, 25 February 2027 · astronomical night 19:38 → 05:28 (9.84 h) · Moon 72% (waning gibbous) · weather: none — the schedule is astronomy only; overall conditions unknown

HD 189733HD 189733 04:30–04:35: quality 0.3HD 189733 04:35–04:50: quality 0.4HD 189733 04:50–05:10: quality 0.5HD 189733 05:10–05:25: quality 0.6HD 189733 05:25–05:30: quality 0.7HD 189733 05:30–06:05: quality 0.3HD 189733 06:05–06:35: quality 0.1observe HD 189733 04:30–06:05scheduleHD 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
18:05–04:30 — nothing worth pointing at — 10.42
04:30–06:05 HD 189733 1.58 0.44
06:05–07:05 — nothing worth pointing at — 1.0

Targets

targetastronomyoverallbest windowhighestMoon sep.scheduled h
HD 189733 12 unknown 05:15–05:30 (good) 71.1° at 10:00 91.9° 1.58

💡 API
curl -sS "https://devops.majbase.com/rozhen-planner/plan-api?targets=M31,M42,M45,NGC%207000&date=2027-02-25"

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"}.