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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 Wednesday, 03 December 2031 · astronomical night 18:30 → 05:51 (11.36 h) · Moon 79% (waning gibbous) · weather: none — the schedule is astronomy only; overall conditions unknown

M31M31 17:25–17:35: quality 0.1M31 17:35–18:00: quality 0.2M31 18:00–18:35: quality 0.5M31 18:35–21:10: quality 1.0M31 21:10–22:35: quality 0.9M31 22:35–00:10: quality 0.8M31 00:10–01:35: quality 0.7M31 01:35–02:10: quality 0.6M31 02:10–02:30: quality 0.5M31 02:30–02:50: quality 0.4M31 02:50–03:00: quality 0.3observe M31 21:40–23:30M42M42 21:20–21:35: quality 0.3M42 21:35–22:00: quality 0.4M42 22:00–02:25: quality 0.5M42 02:25–04:10: quality 0.4M42 04:10–04:45: quality 0.3M42 04:45–05:00: quality 0.2observe M42 03:10–04:25M45M45 17:45–18:00: quality 0.1M45 18:00–18:25: quality 0.3M45 18:25–18:35: quality 0.4M45 18:35–19:20: quality 0.8M45 19:20–20:40: quality 0.9M45 20:40–21:10: quality 1.0M45 21:10–22:15: quality 0.8M45 22:15–01:05: quality 0.7M45 01:05–02:45: quality 0.6M45 02:45–04:10: quality 0.5M45 04:10–04:35: quality 0.4M45 04:35–04:55: quality 0.3M45 04:55–05:00: quality 0.2observe M45 01:20–03:10observe M45 04:25–04:45NGC 7000NGC 7000 17:25–18:00: quality 0.2NGC 7000 18:00–18:35: quality 0.5NGC 7000 18:35–20:00: quality 1.0NGC 7000 20:00–21:10: quality 0.9NGC 7000 21:10–22:10: quality 0.8NGC 7000 22:10–22:35: quality 0.7NGC 7000 22:35–22:50: quality 0.6NGC 7000 22:50–23:10: quality 0.5NGC 7000 23:10–23:25: quality 0.4observe NGC 7000 18:00–19:50V1057 CygV1057 Cyg 17:25–18:00: quality 0.2V1057 Cyg 18:00–18:35: quality 0.5V1057 Cyg 18:35–20:00: quality 1.0V1057 Cyg 20:00–21:10: quality 0.9V1057 Cyg 21:10–22:10: quality 0.8V1057 Cyg 22:10–22:35: quality 0.7V1057 Cyg 22:35–22:50: quality 0.6V1057 Cyg 22:50–23:10: quality 0.5V1057 Cyg 23:10–23:25: quality 0.4observe V1057 Cyg 19:50–21:40M33M33 17:25–18:00: quality 0.1M33 18:00–18:35: quality 0.5M33 18:35–21:10: quality 1.0M33 21:10–21:50: quality 0.9M33 21:50–00:15: quality 0.8M33 00:15–01:35: quality 0.7M33 01:35–02:20: quality 0.6M33 02:20–02:40: quality 0.5M33 02:40–03:00: quality 0.4M33 03:00–03:10: quality 0.3observe M33 23:30–01:20scheduleNGC 7000V1057 CygM31M33M45M4218:0020:0022:0000:0002:0004:0006:00

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 0.84
19:50–21:40 V1057 Cyg 1.83 0.89
21:40–23:30 M31 1.83 0.85
23:30–01:20 M33 1.83 0.74
01:20–03:10 M45 1.83 0.58
03:10–04:25 M42 1.25 0.39
04:25–04:45 M45 0.33 0.34
04:45–07:35 — nothing worth pointing at — 2.83

Targets

targetastronomyoverallbest windowhighestMoon sep.scheduled h
M31 Andromeda Galaxy 100 unknown 18:35–02:00 (good) 89.7° at 20:15 99.9° 1.83
M42 Great Orion Nebula 46 unknown 21:25–04:25 (marginal) 42.9° at 01:10 47.4° 1.25
M45 Seven Sisters 98 unknown 18:35–02:00 (good) 72.5° at 23:20 67.2° 2.17
NGC 7000 North America Nebula 100 unknown 18:35–22:45 (good) 87.2° at 16:30 121.6° 1.83
V1057 Cyg 100 unknown 18:35–22:45 (good) 87.3° at 16:30 121.6° 1.83
M33 Triangulum Pinwheel 100 unknown 18:35–02:15 (good) 79.1° at 21:05 94.7° 1.83
💡 API 
curl -sS "https://devops.majbase.com/rozhen-planner/plan-api?targets=M31,M42,M45,NGC%207000&date=2031-12-03"

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"}.