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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, 01 October 2026 · astronomical night 20:35 → 05:46 (9.18 h) · Moon 68% (waning gibbous) · weather: ERA5 history

M31M31 19:00–21:00: unusableM31 21:00–21:50: marginalM31 21:50–22:00: poorM31 22:00–02:00: marginalM31 02:00–02:10: goodM31 02:10–05:50: marginalM31 05:50–06:55: poorM31 06:55–07:20: unusableobserve M31 21:00–21:50observe M31 22:00–05:50scheduleM31M3120:0022:0000:0002:0004:0006:00

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

Schedule

localtargethoursmean quality
19:00–21:00 — nothing worth pointing at — 2.0
21:00–21:50 M31 0.83 0.34
21:50–22:00 — nothing worth pointing at — 0.17
22:00–05:50 M31 7.83 0.48
05:50–07:20 — nothing worth pointing at — 1.5

Targets

targetastronomyoverallbest windowhighestMoon sep.scheduled h
M31 Andromeda Galaxy 93 59 02:00–02:10 (good) 89.5° at 01:25 53.8° 8.67

💡 API
curl -sS "https://devops.majbase.com/rozhen-planner/plan-api?targets=M31,M42,M45,NGC%207000&date=2026-10-01"

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"}.