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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, 25 April 2027 · astronomical night 21:56 → 04:40 (6.73 h) · Moon 76% (waning gibbous) · weather: none — the schedule is astronomy only; overall conditions unknown

VegaVega 23:15–23:25: quality 0.4Vega 23:25–23:40: quality 0.5Vega 23:40–23:55: quality 0.6Vega 23:55–00:10: quality 0.7Vega 00:10–01:05: quality 0.8Vega 01:05–01:20: quality 0.9Vega 01:20–04:45: quality 0.7Vega 04:45–05:20: quality 0.4Vega 05:20–06:00: quality 0.1observe Vega 23:15–05:20scheduleVega22:0000:0002:0004:0006:00

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
20:10–23:15 — nothing worth pointing at — 3.08
23:15–05:20 Vega 6.08 0.68
05:20–06:30 — nothing worth pointing at — 1.17

Targets

targetastronomyoverallbest windowhighestMoon sep.scheduled h
Vega Vega 87 unknown 23:50–04:45 (good) 87.1° at 05:45 65.8° 6.08

💡 API
curl -sS "https://devops.majbase.com/rozhen-planner/plan-api?targets=M31,M42,M45,NGC%207000&date=2027-04-25"

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"}.