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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, 09 February 2028 · astronomical night 19:20 → 05:49 (10.49 h) · Moon 99% (full moon) · weather: none — the schedule is astronomy only; overall conditions unknown

M45M45 18:15–18:50: quality 0.1M45 18:50–19:25: quality 0.3M45 19:25–21:10: quality 0.6M45 21:10–22:55: quality 0.5M45 22:55–23:55: quality 0.4M45 23:55–00:20: quality 0.3M45 00:20–00:30: quality 0.2observe M45 18:50–00:05scheduleM4518:0020:0022:0000:0002:0004:0006:00

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
17:45–18:50 — nothing worth pointing at — 1.08
18:50–00:05 M45 5.25 0.49
00:05–07:25 — nothing worth pointing at — 7.33

Targets

targetastronomyoverallbest windowhighestMoon sep.scheduled h
M45 Seven Sisters 43 unknown 19:25–20:05 (good) 72.5° at 18:50 71.3° 5.25

💡 API
curl -sS "https://devops.majbase.com/rozhen-planner/plan-api?targets=M31,M42,M45,NGC%207000&date=2028-02-09"

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"}.