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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 Sunday, 10 September 2028 · astronomical night 21:13 → 05:21 (8.13 h) · Moon 61% (waning gibbous) · weather: none — the schedule is astronomy only; overall conditions unknown

HD 189733HD 189733 20:10–20:15: quality 0.1HD 189733 20:15–20:40: quality 0.2HD 189733 20:40–21:15: quality 0.5HD 189733 21:15–22:40: quality 1.0HD 189733 22:40–00:40: quality 0.9HD 189733 00:40–02:00: quality 0.8HD 189733 02:00–02:50: quality 0.7HD 189733 02:50–03:05: quality 0.6HD 189733 03:05–03:20: quality 0.5HD 189733 03:20–03:35: quality 0.4observe HD 189733 20:40–03:35scheduleHD 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
19:35–20:40 — nothing worth pointing at — 1.08
20:40–03:35 HD 189733 6.92 0.8
03:35–07:00 — nothing worth pointing at — 3.42

Targets

targetastronomyoverallbest windowhighestMoon sep.scheduled h
HD 189733 100 unknown 21:15–02:55 (good) 71.1° at 22:00 107.0° 6.92

💡 API
curl -sS "https://devops.majbase.com/rozhen-planner/plan-api?targets=M31,M42,M45,NGC%207000&date=2028-09-10"

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"}.