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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 Friday, 04 December 2026 · astronomical night 18:30 → 05:52 (11.38 h) · Moon 16% (waning crescent) · weather: none — the schedule is astronomy only; overall conditions unknown

VegaVega 17:25–18:00: quality 0.1Vega 18:00–18:10: quality 0.5Vega 18:10–18:35: quality 0.4Vega 18:35–18:50: quality 0.9Vega 18:50–19:40: quality 0.8Vega 19:40–19:55: quality 0.7Vega 19:55–20:15: quality 0.6Vega 20:15–20:30: quality 0.5Vega 20:30–20:35: quality 0.4observe Vega 18:00–20:35scheduleVega18:0020:0022:0000:0002:0004:0006:00

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
16:50–18:00 — nothing worth pointing at — 1.17
18:00–20:35 Vega 2.58 0.66
20:35–07:35 — nothing worth pointing at — 11.0

Targets

targetastronomyoverallbest windowhighestMoon sep.scheduled h
Vega Vega 38 unknown 18:35–20:05 (good) 87.1° at 14:05 88.6° 2.58

💡 API
curl -sS "https://devops.majbase.com/rozhen-planner/plan-api?targets=M31,M42,M45,NGC%207000&date=2026-12-04"

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"}.