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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 2041 · astronomical night 18:30 → 05:52 (11.37 h) · Moon 83% (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 0.2M31 18:35–19:05: quality 0.5M31 19:05–22:40: quality 0.4M31 22:40–02:00: quality 0.5M31 02:00–02:30: quality 0.4M31 02:30–02:55: quality 0.3observe M31 01:20–02:45M42M42 21:20–21:25: quality 0.2M42 21:25–21:50: quality 0.3M42 21:50–22:20: quality 0.4M42 22:20–00:05: quality 0.5M42 00:05–03:30: quality 0.6M42 03:30–04:00: quality 0.8M42 04:00–04:15: quality 0.7M42 04:15–04:35: quality 0.6M42 04:35–04:50: quality 0.5M42 04:50–04:55: quality 0.4observe M42 23:30–01:20observe M42 02:55–04:55M45M45 18:00–18:15: quality 0.1M45 18:15–18:35: quality 0.2M45 18:35–22:10: quality 0.4M45 22:10–00:55: quality 0.5M45 00:55–03:30: quality 0.6M45 03:30–04:10: 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 21:40–23:30NGC 7000NGC 7000 17:25–18:00: quality 0.1NGC 7000 18:00–18:35: quality 0.3NGC 7000 18:35–20:35: quality 0.6NGC 7000 20:35–22:30: quality 0.5NGC 7000 22:30–22:55: quality 0.4NGC 7000 22:55–23:25: 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 18:35–20:35: quality 0.6V1057 Cyg 20:35–22:30: quality 0.5V1057 Cyg 22:30–22:55: quality 0.4V1057 Cyg 22:55–23:25: quality 0.3observe V1057 Cyg 19:50–21:40M33M33 17:25–18:00: quality 0.1M33 18:00–18:35: quality 0.2M33 18:35–23:25: quality 0.4M33 23:25–02:15: quality 0.5M33 02:15–02:45: quality 0.4M33 02:45–03:05: quality 0.3observe M33 02:45–02:55scheduleNGC 7000V1057 CygM45M42M31M4218:0020:0022:0000:0002:0004:0006:00

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 0.54
21:40–23:30 M45 1.83 0.46
23:30–01:20 M42 1.83 0.56
01:20–02:45 M31 1.42 0.42
02:45–02:55 M33 0.17 0.32
02:55–04:55 M42 2.0 0.65
04:55–07:35 — nothing worth pointing at — 2.67

Targets

targetastronomyoverallbest windowhighestMoon sep.scheduled h
M31 Andromeda Galaxy 45 unknown 18:35–02:45 (marginal) 89.8° at 20:15 34.8° 1.42
M42 Great Orion Nebula 82 unknown 01:20–04:25 (good) 42.9° at 01:05 63.5° 3.83
M45 Seven Sisters 84 unknown 03:30–04:30 (good) 72.5° at 23:20 37.2° 1.83
NGC 7000 North America Nebula 43 unknown 18:35–19:35 (good) 87.2° at 16:30 68.1° 1.83
V1057 Cyg 43 unknown 18:35–19:35 (good) 87.3° at 16:30 68.1° 1.83
M33 Triangulum Pinwheel 44 unknown 18:35–02:55 (marginal) 79.2° at 21:05 22.9° 0.17
💡 API 
curl -sS "https://devops.majbase.com/rozhen-planner/plan-api?targets=M31,M42,M45,NGC%207000&date=2041-12-03"

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"}.