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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 Sunday, 29 December 2041 · astronomical night 18:39 → 06:07 (11.48 h) · Moon 48% (first quarter) · weather: none — the schedule is astronomy only; overall conditions unknown

M31M31 17:35–18:10: quality 0.1M31 18:10–18:40: quality 0.4M31 18:40–00:05: quality 0.7M31 00:05–00:15: quality 0.8M31 00:15–00:35: quality 0.7M31 00:35–00:50: quality 0.6M31 00:50–01:05: quality 0.5M31 01:05–01:15: quality 0.4observe M31 00:30–01:05M42M42 19:40–19:45: quality 0.3M42 19:45–20:00: quality 0.4M42 20:00–20:20: quality 0.5M42 20:20–20:40: quality 0.6M42 20:40–22:30: quality 0.7M42 22:30–00:05: quality 0.8M42 00:05–01:10: quality 0.9M42 01:10–02:20: quality 0.8M42 02:20–02:35: quality 0.7M42 02:35–02:50: quality 0.6M42 02:50–03:05: quality 0.5M42 03:05–03:15: quality 0.4observe M42 01:05–03:15M45M45 17:35–18:10: quality 0.1M45 18:10–18:40: quality 0.3M45 18:40–19:35: quality 0.7M45 19:35–00:05: quality 0.8M45 00:05–00:20: quality 1.0M45 00:20–01:40: quality 0.9M45 01:40–02:25: quality 0.8M45 02:25–02:40: quality 0.7M45 02:40–02:55: quality 0.6M45 02:55–03:05: quality 0.5M45 03:05–03:15: quality 0.4observe M45 21:20–22:55NGC 7000NGC 7000 17:35–18:10: quality 0.1NGC 7000 18:10–18:40: quality 0.4NGC 7000 18:40–20:05: quality 0.7NGC 7000 20:05–20:55: quality 0.6NGC 7000 20:55–21:15: quality 0.5NGC 7000 21:15–21:35: quality 0.4NGC 7000 21:35–21:45: quality 0.3observe NGC 7000 18:10–19:45V1057 CygV1057 Cyg 17:35–18:10: quality 0.1V1057 Cyg 18:10–18:40: quality 0.4V1057 Cyg 18:40–20:05: quality 0.7V1057 Cyg 20:05–20:55: quality 0.6V1057 Cyg 20:55–21:15: quality 0.5V1057 Cyg 21:15–21:35: quality 0.4V1057 Cyg 21:35–21:45: quality 0.3observe V1057 Cyg 19:45–21:20M33M33 17:35–18:10: quality 0.1M33 18:10–18:40: quality 0.3M33 18:40–00:05: quality 0.7M33 00:05–00:35: quality 0.8M33 00:35–00:50: quality 0.7M33 00:50–01:05: quality 0.6M33 01:05–01:15: quality 0.5M33 01:15–01:25: quality 0.4observe M33 22:55–00:30scheduleNGC 7000V1057 CygM45M33M4218:0020:0022:0000:0002:0004:0006:00

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
16:55–18:10 — nothing worth pointing at — 1.25
18:10–19:45 NGC 7000 1.58 0.59
19:45–21:20 V1057 Cyg 1.58 0.59
21:20–22:55 M45 1.58 0.8
22:55–00:30 M33 1.58 0.72
00:30–01:05 M31 0.58 0.56
01:05–03:15 M42 2.17 0.71
03:15–07:50 — nothing worth pointing at — 4.58

Targets

targetastronomyoverallbest windowhighestMoon sep.scheduled h
M31 Andromeda Galaxy 80 unknown 18:40–00:40 (good) 89.6° at 18:30 41.4° 0.58
M42 Great Orion Nebula 88 unknown 20:30–02:45 (good) 42.9° at 23:25 77.7° 2.17
M45 Seven Sisters 96 unknown 18:40–02:45 (good) 72.5° at 21:35 54.5° 1.58
NGC 7000 North America Nebula 37 unknown 18:40–20:40 (good) 87.2° at 14:50 63.5° 1.58
V1057 Cyg 37 unknown 18:40–20:40 (good) 87.2° at 14:50 63.4° 1.58
M33 Triangulum Pinwheel 82 unknown 18:40–00:55 (good) 79.2° at 19:25 34.8° 1.58
💡 API 
curl -sS "https://devops.majbase.com/rozhen-planner/plan-api?targets=M31,M42,M45,NGC%207000&date=2041-12-29"

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"}.