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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 Friday, 07 August 2026 · astronomical night 22:21 → 04:32 (6.18 h) · Moon 30% (waning crescent) · weather: ERA5 history

M33M33 23:55–00:05: quality 0.4M33 00:05–00:15: quality 0.5M33 00:15–00:30: quality 0.6M33 00:30–00:45: quality 0.7M33 00:45–01:05: quality 0.8M33 01:05–01:40: quality 0.7M33 01:40–04:35: quality 0.8M33 04:35–05:15: quality 0.4M33 05:15–05:55: quality 0.1observe M33 23:55–05:15scheduleM3322:0000:0002:0004:0006:00

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
20:30–23:55 — nothing worth pointing at — 3.42
23:55–05:15 M33 5.33 0.71
05:15–06:25 — nothing worth pointing at — 1.17

Targets

targetastronomyoverallbest windowhighestMoon sep.scheduled h
M33 Triangulum Pinwheel 83 82 00:25–04:35 (good) 79.1° at 05:50 38.3° 5.33

💡 API
curl -sS "https://devops.majbase.com/rozhen-planner/plan-api?targets=M31,M42,M45,NGC%207000&date=2026-08-07"

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"}.