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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 Saturday, 22 August 2026 · astronomical night 21:52 → 04:55 (7.04 h) · Moon 76% (waxing gibbous) · weather: ERA5 history

VegaVega 20:40–21:20: quality 0.1Vega 21:20–21:55: quality 0.3Vega 21:55–00:00: quality 0.7Vega 00:00–01:00: quality 0.4Vega 01:00–01:20: quality 0.6Vega 01:20–01:55: quality 0.8Vega 01:55–02:00: quality 0.7Vega 02:00–02:05: quality 0.9Vega 02:05–03:30: quality 0.8Vega 03:30–03:45: quality 0.7Vega 03:45–04:00: quality 0.6Vega 04:00–04:15: quality 0.5Vega 04:15–04:25: quality 0.4observe Vega 21:20–04:25scheduleVega22:0000:0002:0004:0006:00

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
20:10–21:20 — nothing worth pointing at — 1.17
21:20–04:25 Vega 7.08 0.65
04:25–06:40 — nothing worth pointing at — 2.25

Targets

targetastronomyoverallbest windowhighestMoon sep.scheduled h
Vega Vega 94 83 01:00–03:55 (good) 87.1° at 21:55 67.2° 7.08

💡 API
curl -sS "https://devops.majbase.com/rozhen-planner/plan-api?targets=M31,M42,M45,NGC%207000&date=2026-08-22"

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"}.