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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, 10 February 2027 · astronomical night 19:21 → 05:48 (10.45 h) · Moon 17% (waxing crescent) · weather: none — the schedule is astronomy only; overall conditions unknown

M42M42 18:20–18:50: quality 0.1M42 18:50–19:25: quality 0.4M42 19:25–21:50: quality 0.8M42 21:50–22:20: quality 0.9M42 22:20–23:30: quality 0.8M42 23:30–23:45: quality 0.7M42 23:45–00:00: quality 0.6M42 00:00–00:20: quality 0.5M42 00:20–00:25: quality 0.4observe M42 18:50–00:25scheduleM4218:0020:0022:0000:0002:0004:0006:00

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
18:50–00:25 M42 5.58 0.75
00:25–07:25 — nothing worth pointing at — 7.0

Targets

targetastronomyoverallbest windowhighestMoon sep.scheduled h
M42 Great Orion Nebula 87 unknown 19:25–23:55 (good) 42.9° at 20:35 76.8° 5.58

💡 API
curl -sS "https://devops.majbase.com/rozhen-planner/plan-api?targets=M31,M42,M45,NGC%207000&date=2027-02-10"

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"}.