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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, 07 February 2027 · astronomical night 19:18 → 05:51 (10.56 h) · Moon 2% (new moon) · weather: none — the schedule is astronomy only; overall conditions unknown

M45M45 18:15–18:35: quality 0.1M45 18:35–18:50: quality 0.2M45 18:50–19:20: quality 0.5M45 19:20–21:40: quality 1.0M45 21:40–23:00: quality 0.9M45 23:00–23:50: quality 0.8M45 23:50–00:05: quality 0.7M45 00:05–00:15: quality 0.6M45 00:15–00:30: quality 0.5M45 00:30–00:35: quality 0.4observe M45 18:50–00:35scheduleM4518:0020:0022:0000:0002:0004:0006:00

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
17:40–18:50 — nothing worth pointing at — 1.17
18:50–00:35 M45 5.75 0.85
00:35–07:30 — nothing worth pointing at — 6.92

Targets

targetastronomyoverallbest windowhighestMoon sep.scheduled h
M45 Seven Sisters 100 unknown 19:20–00:10 (good) 72.5° at 19:00 86.6° 5.75

💡 API
curl -sS "https://devops.majbase.com/rozhen-planner/plan-api?targets=M31,M42,M45,NGC%207000&date=2027-02-07"

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"}.