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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.

Try: an autumn deep-sky night  ·  ← previous night · next night →

Night of Thursday, 06 August 2026 · astronomical night 22:23 → 04:30 (6.13 h) · Moon 40% (waning crescent) · weather: ERA5 history

M31M31 22:25–22:45: quality 0.4M31 22:45–23:00: quality 0.5M31 23:00–23:20: quality 0.6M31 23:20–00:20: quality 0.7M31 00:20–02:00: quality 0.6M31 02:00–03:00: quality 0.7M31 03:00–03:55: quality 0.8M31 03:55–04:35: quality 0.7M31 04:35–05:00: quality 0.4M31 05:00–05:15: quality 0.3M31 05:15–05:55: quality 0.1observe M31 22:25–05:15scheduleM3122:0000:0002:0004:0006:00

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
20:30–22:25 — nothing worth pointing at — 1.92
22:25–05:15 M31 6.83 0.64
05:15–06:25 — nothing worth pointing at — 1.17

Targets

targetastronomyoverallbest windowhighestMoon sep.scheduled h
M31 Andromeda Galaxy 85 77 23:10–04:35 (good) 89.5° at 05:05 38.0° 6.83

💡 API
curl -sS "https://devops.majbase.com/rozhen-planner/plan-api?targets=M31,M42,M45,NGC%207000&date=2026-08-06"

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"}.