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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, 04 May 2027 · astronomical night 22:11 → 04:23 (6.2 h) · Moon 3% (waning crescent) · weather: none — the schedule is astronomy only; overall conditions unknown

HD 189733HD 189733 01:05–01:10: quality 0.4HD 189733 01:10–01:25: quality 0.5HD 189733 01:25–01:35: quality 0.6HD 189733 01:35–01:50: quality 0.7HD 189733 01:50–02:40: quality 0.8HD 189733 02:40–04:00: quality 0.9HD 189733 04:00–04:25: quality 1.0HD 189733 04:25–05:05: quality 0.5HD 189733 05:05–05:15: quality 0.2HD 189733 05:15–05:45: quality 0.1observe HD 189733 01:05–05:05scheduleHD 18973322:0000:0002:0004:0006:00

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
20:20–01:05 — nothing worth pointing at — 4.75
01:05–05:05 HD 189733 4.0 0.76
05:05–06:15 — nothing worth pointing at — 1.17

Targets

targetastronomyoverallbest windowhighestMoon sep.scheduled h
HD 189733 77 unknown 01:30–04:25 (good) 71.1° at 06:30 76.4° 4.0

💡 API
curl -sS "https://devops.majbase.com/rozhen-planner/plan-api?targets=M31,M42,M45,NGC%207000&date=2027-05-04"

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"}.