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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 Saturday, 10 October 2026 · astronomical night 20:20 → 05:56 (9.6 h) · Moon 0% (new moon) · weather: forecast

M31M31 18:45–19:20: unusableM31 19:20–20:00: poorM31 20:00–20:25: marginalM31 20:25–06:00: goodM31 06:00–06:30: marginalM31 06:30–07:05: poorM31 07:05–07:30: unusableobserve M31 20:00–06:30scheduleM3120:0022:0000:0002:0004:0006:00

Faded bands: each target's own windows (green good, amber marginal, pink poor). Dark blue: the schedule. Grey columns: twilight.

Schedule

localtargethoursmean quality
18:45–20:00 — nothing worth pointing at — 1.25
20:00–06:30 M31 10.5 0.88
06:30–07:30 — nothing worth pointing at — 1.0

Targets

targetastronomyoverallbest windowhighestMoon sep.scheduled h
M31 Andromeda Galaxy 100 95 20:25–06:00 (good) 89.5° at 00:45 149.9° 10.5

💡 API
curl -sS "https://devops.majbase.com/rozhen-planner/plan-api?targets=M31,M42,M45,NGC%207000&date=2026-10-10"

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"}.