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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 Tuesday, 03 March 2026 · astronomical night 19:45 → 05:19 (9.56 h) · Moon 100% (full moon) · weather: ERA5 history

M31M42M45NGC 7000NGC 7000 03:40–04:05: quality 0.4NGC 7000 04:05–04:25: quality 0.5NGC 7000 04:25–04:40: quality 0.6NGC 7000 04:40–05:20: quality 0.7NGC 7000 05:20–05:55: quality 0.4NGC 7000 05:55–06:25: quality 0.1observe NGC 7000 03:40–04:50V1057 CygV1057 Cyg 03:45–04:05: quality 0.4V1057 Cyg 04:05–04:25: quality 0.5V1057 Cyg 04:25–04:40: quality 0.6V1057 Cyg 04:40–05:20: quality 0.7V1057 Cyg 05:20–05:55: quality 0.4V1057 Cyg 05:55–06:25: quality 0.1observe V1057 Cyg 04:50–05:55M33scheduleNGC 7000V1057 Cyg20:0022:0000:0002:0004:0006:00

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
18:10–03:40 — nothing worth pointing at — 9.5
03:40–04:50 NGC 7000 1.17 0.51
04:50–05:55 V1057 Cyg 1.08 0.53
05:55–06:55 — nothing worth pointing at — 1.0

Targets

targetastronomyoverallbest windowhighestMoon sep.scheduled h
M31 Andromeda Galaxy 17 0 — 89.7° at 14:20 131.2° 0.0
M42 Great Orion Nebula 32 0 — 42.9° at 19:10 86.0° 0.0
M45 Seven Sisters 50 0 — 72.5° at 17:25 109.2° 0.0
NGC 7000 North America Nebula 23 23 04:30–05:20 (good) 87.2° at 10:30 122.9° 1.17
V1057 Cyg 23 23 04:30–05:20 (good) 87.3° at 10:30 123.0° 1.08
M33 Triangulum Pinwheel 20 0 — 79.1° at 15:10 132.8° 0.0

Left out


💡 API
curl -sS "https://devops.majbase.com/rozhen-planner/plan-api?targets=M31,M42,M45,NGC%207000&date=2026-03-03"

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"}.