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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 Monday, 03 February 2031 · astronomical night 19:13 → 05:55 (10.7 h) · Moon 88% (waxing gibbous) · weather: none — the schedule is astronomy only; overall conditions unknown

M31M31 18:10–18:45: quality 0.1M31 18:45–19:15: quality 0.3M31 19:15–19:55: quality 0.6M31 19:55–21:50: quality 0.5M31 21:50–22:20: quality 0.4M31 22:20–22:50: quality 0.3M31 22:50–22:55: quality 0.2observe M31 18:45–19:05observe M31 19:15–22:35scheduleM3118:0020:0022:0000:0002:0004:0006:00

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
17:35–18:45 — nothing worth pointing at — 1.17
18:45–19:05 M31 0.33 0.31
19:05–19:15 — nothing worth pointing at — 0.17
19:15–22:35 M31 3.33 0.49
22:35–07:35 — nothing worth pointing at — 9.0

Targets

targetastronomyoverallbest windowhighestMoon sep.scheduled h
M31 Andromeda Galaxy 28 unknown 19:15–22:35 (marginal) 89.7° at 16:10 72.6° 3.67

💡 API
curl -sS "https://devops.majbase.com/rozhen-planner/plan-api?targets=M31,M42,M45,NGC%207000&date=2031-02-03"

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"}.