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 Sunday, 20 June 2027 · astronomical night 23:10 → 03:35 (4.42 h) · Moon 97% (waning gibbous) · weather: none — the schedule is astronomy only; overall conditions unknown
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
| local | target | hours | mean quality |
|---|---|---|---|
| 20:55–22:25 | — nothing worth pointing at — | 1.5 | |
| 22:25–22:30 | HD 189733 | 0.08 | 0.31 |
| 22:30–23:15 | — nothing worth pointing at — | 0.75 | |
| 23:15–03:40 | HD 189733 | 4.42 | 0.54 |
| 03:40–05:50 | — nothing worth pointing at — | 2.17 |
| target | astronomy | overall | best window | highest | Moon sep. | scheduled h |
|---|---|---|---|---|---|---|
| HD 189733 | 41 | unknown | 23:15–03:40 (marginal) | 71.1° at 03:25 | 47.1° | 4.5 |
curl -sS "https://devops.majbase.com/rozhen-planner/plan-api?targets=M31,M42,M45,NGC%207000&date=2027-06-20"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"}.