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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, 26 September 2028 · astronomical night 20:43 → 05:41 (8.96 h) · Moon 64% (waxing gibbous) · weather: none — the schedule is astronomy only; overall conditions unknown

M31M31 19:40–20:15: quality 0.1M31 20:15–20:30: quality 0.3M31 20:30–20:45: quality 0.4M31 20:45–21:20: quality 0.7M31 21:20–22:45: quality 0.8M31 22:45–00:55: quality 0.9M31 00:55–05:05: quality 1.0M31 05:05–05:45: quality 0.9M31 05:45–05:50: quality 0.5M31 05:50–06:15: quality 0.4M31 06:15–06:50: quality 0.1observe M31 20:15–06:15scheduleM3120:0022:0000:0002:0004:0006:00

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
19:10–20:15 — nothing worth pointing at — 1.08
20:15–06:15 M31 10.0 0.86
06:15–07:15 — nothing worth pointing at — 1.0

Targets

targetastronomyoverallbest windowhighestMoon sep.scheduled h
M31 Andromeda Galaxy 100 unknown 20:45–05:45 (good) 89.7° at 01:40 96.3° 10.0

💡 API
curl -sS "https://devops.majbase.com/rozhen-planner/plan-api?targets=M31,M42,M45,NGC%207000&date=2028-09-26"

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"}.