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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 December 2030 · astronomical night 18:30 → 05:52 (11.36 h) · Moon 70% (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 18:35–21:45: quality 0.5M31 21:45–02:00: quality 0.6M31 02:00–02:05: quality 0.5M31 02:05–02:15: quality 0.7M31 02:15–02:30: quality 0.6M31 02:30–02:50: quality 0.5M31 02:50–02:55: quality 0.4observe M31 01:20–02:30M42M42 21:20–21:30: quality 0.3M42 21:30–21:55: quality 0.4M42 21:55–22:15: quality 0.5M42 22:15–23:15: quality 0.6M42 23:15–02:05: quality 0.7M42 02:05–02:50: quality 0.9M42 02:50–04:00: quality 0.8M42 04:00–04:20: quality 0.7M42 04:20–04:35: quality 0.6M42 04:35–04:50: quality 0.5M42 04:50–04:55: quality 0.4observe M42 23:30–01:20M45M45 18:00–18:35: quality 0.2M45 18:35–20:05: quality 0.5M45 20:05–22:35: quality 0.6M45 22:35–02:05: quality 0.7M45 02:05–03:20: quality 0.9M45 03:20–04:10: quality 0.8M45 04:10–04:20: quality 0.7M45 04:20–04:35: quality 0.6M45 04:35–04:50: quality 0.5M45 04:50–04:55: quality 0.4observe M45 21:40–23:30observe M45 03:05–04:55NGC 7000NGC 7000 17:25–18:00: quality 0.1NGC 7000 18:00–18:35: quality 0.3NGC 7000 18:35–21:05: quality 0.6NGC 7000 21:05–22:35: quality 0.5NGC 7000 22:35–23:05: quality 0.4NGC 7000 23:05–23:25: quality 0.3observe NGC 7000 18:00–19:50V1057 CygV1057 Cyg 17:25–18:00: quality 0.1V1057 Cyg 18:00–18:35: quality 0.3V1057 Cyg 18:35–21:05: quality 0.6V1057 Cyg 21:05–22:35: quality 0.5V1057 Cyg 22:35–23:05: quality 0.4V1057 Cyg 23:05–23:25: quality 0.3observe V1057 Cyg 19:50–21:40M33M33 17:25–18:00: quality 0.1M33 18:00–18:35: quality 0.2M33 18:35–22:20: quality 0.5M33 22:20–02:05: quality 0.6M33 02:05–02:15: quality 0.8M33 02:15–02:30: quality 0.7M33 02:30–02:45: quality 0.6M33 02:45–03:00: quality 0.5M33 03:00–03:05: quality 0.4observe M33 02:30–03:05scheduleNGC 7000V1057 CygM45M42M31M4518:0020:0022:0000:0002:0004:0006:00

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
18:00–19:50 NGC 7000 1.83 0.52
19:50–21:40 V1057 Cyg 1.83 0.56
21:40–23:30 M45 1.83 0.65
23:30–01:20 M42 1.83 0.7
01:20–02:30 M31 1.17 0.6
02:30–03:05 M33 0.58 0.54
03:05–04:55 M45 1.83 0.72
04:55–07:35 — nothing worth pointing at — 2.67

Targets

targetastronomyoverallbest windowhighestMoon sep.scheduled h
M31 Andromeda Galaxy 70 unknown 02:05–02:25 (good) 89.7° at 20:15 35.6° 1.17
M42 Great Orion Nebula 87 unknown 22:25–04:25 (good) 42.9° at 01:05 81.6° 1.83
M45 Seven Sisters 94 unknown 21:00–04:30 (good) 72.5° at 23:20 54.3° 3.67
NGC 7000 North America Nebula 44 unknown 18:35–19:40 (good) 87.2° at 16:30 56.6° 1.83
V1057 Cyg 44 unknown 18:35–19:40 (good) 87.3° at 16:30 56.5° 1.83
M33 Triangulum Pinwheel 80 unknown 02:05–02:40 (good) 79.1° at 21:05 31.0° 0.58
💡 API 
curl -sS "https://devops.majbase.com/rozhen-planner/plan-api?targets=M31,M42,M45,NGC%207000&date=2030-12-03"

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"}.