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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 Monday, 02 December 2030 · astronomical night 18:30 → 05:51 (11.35 h) · Moon 60% (waxing gibbous) · weather: none — the schedule is astronomy only; overall conditions unknown

M31M31 17:25–18:00: quality 0.1M31 18:00–18:35: quality 0.3M31 18:35–20:55: quality 0.6M31 20:55–01:05: quality 0.7M31 01:05–01:10: quality 0.9M31 01:10–02:05: quality 0.8M31 02:05–02:20: quality 0.7M31 02:20–02:35: quality 0.6M31 02:35–02:50: quality 0.5M31 02:50–03:00: quality 0.4observe M31 01:40–02:50M42M42 21:25–21:30: quality 0.3M42 21:30–21:45: quality 0.4M42 21:45–22:05: quality 0.5M42 22:05–22:25: quality 0.6M42 22:25–23:50: quality 0.7M42 23:50–01:05: quality 0.8M42 01:05–02:55: quality 0.9M42 02:55–04:05: quality 0.8M42 04:05–04:20: quality 0.7M42 04:20–04:40: quality 0.6M42 04:40–04:55: quality 0.5M42 04:55–05:00: quality 0.4observe M42 02:50–05:00M45M45 18:00–18:30: quality 0.2M45 18:30–18:35: quality 0.3M45 18:35–18:40: quality 0.5M45 18:40–20:05: quality 0.6M45 20:05–21:50: quality 0.7M45 21:50–01:05: quality 0.8M45 01:05–02:05: quality 1.0M45 02:05–03:25: quality 0.9M45 03:25–04:15: quality 0.8M45 04:15–04:25: quality 0.7M45 04:25–04:40: quality 0.6M45 04:40–04:55: quality 0.5M45 04:55–05:00: quality 0.4observe M45 21:50–23:45NGC 7000NGC 7000 17:25–18:00: quality 0.1NGC 7000 18:00–18:35: quality 0.3NGC 7000 18:35–19:50: quality 0.7NGC 7000 19:50–22:30: quality 0.6NGC 7000 22:30–22:55: quality 0.5NGC 7000 22:55–23:20: quality 0.4NGC 7000 23:20–23:30: quality 0.3observe NGC 7000 18:00–19:55V1057 CygV1057 Cyg 17:25–18:00: quality 0.1V1057 Cyg 18:00–18:35: quality 0.3V1057 Cyg 18:35–19:50: quality 0.7V1057 Cyg 19:50–22:30: quality 0.6V1057 Cyg 22:30–22:55: quality 0.5V1057 Cyg 22:55–23:20: quality 0.4V1057 Cyg 23:20–23:30: quality 0.3observe V1057 Cyg 19:55–21:50M33M33 17:25–18:00: quality 0.1M33 18:00–18:35: quality 0.3M33 18:35–21:05: quality 0.6M33 21:05–01:05: quality 0.7M33 01:05–01:35: quality 0.9M33 01:35–02:20: quality 0.8M33 02:20–02:35: quality 0.7M33 02:35–02:50: quality 0.6M33 02:50–03:05: quality 0.5M33 03:05–03:10: quality 0.4observe M33 23:45–01:40scheduleNGC 7000V1057 CygM45M33M31M4218:0020:0022:0000:0002:0004:0006:00

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
16:50–18:00 — nothing worth pointing at — 1.17
18:00–19:55 NGC 7000 1.92 0.56
19:55–21:50 V1057 Cyg 1.92 0.61
21:50–23:45 M45 1.92 0.77
23:45–01:40 M33 1.92 0.76
01:40–02:50 M31 1.17 0.67
02:50–05:00 M42 2.17 0.72
05:00–07:35 — nothing worth pointing at — 2.58

Targets

targetastronomyoverallbest windowhighestMoon sep.scheduled h
M31 Andromeda Galaxy 85 unknown 18:35–02:30 (good) 89.7° at 20:20 43.3° 1.17
M42 Great Orion Nebula 89 unknown 22:15–04:30 (good) 42.9° at 01:10 92.9° 2.17
M45 Seven Sisters 100 unknown 19:10–04:35 (good) 72.5° at 23:20 67.0° 1.92
NGC 7000 North America Nebula 52 unknown 18:35–21:20 (good) 87.2° at 16:35 53.4° 1.92
V1057 Cyg 52 unknown 18:35–21:20 (good) 87.3° at 16:35 53.3° 1.92
M33 Triangulum Pinwheel 88 unknown 18:35–02:40 (good) 79.1° at 21:10 42.2° 1.92
💡 API 
curl -sS "https://devops.majbase.com/rozhen-planner/plan-api?targets=M31,M42,M45,NGC%207000&date=2030-12-02"

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"}.