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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 Wednesday, 04 August 2027 · astronomical night 22:27 → 04:27 (6.0 h) · Moon 9% (waxing crescent) · weather: none — the schedule is astronomy only; overall conditions unknown

M31M31 22:35–22:45: quality 0.4M31 22:45–23:00: quality 0.5M31 23:00–23:15: quality 0.6M31 23:15–23:30: quality 0.7M31 23:30–00:25: quality 0.8M31 00:25–01:50: quality 0.9M31 01:50–04:30: quality 1.0M31 04:30–05:10: quality 0.5M31 05:10–05:50: quality 0.2observe M31 22:35–05:10scheduleM3122:0000:0002:0004:0006:00

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
20:35–22:35 — nothing worth pointing at — 2.0
22:35–05:10 M31 6.58 0.84
05:10–06:20 — nothing worth pointing at — 1.17

Targets

targetastronomyoverallbest windowhighestMoon sep.scheduled h
M31 Andromeda Galaxy 100 unknown 23:10–04:30 (good) 89.6° at 05:10 131.8° 6.58

💡 API
curl -sS "https://devops.majbase.com/rozhen-planner/plan-api?targets=M31,M42,M45,NGC%207000&date=2027-08-04"

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"}.