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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 Thursday, 25 December 2036 · astronomical night 18:36 → 06:06 (11.5 h) · Moon 51% (first quarter) · weather: none — the schedule is astronomy only; overall conditions unknown

M31M31 17:30–18:05: quality 0.1M31 18:05–18:40: quality 0.3M31 18:40–00:20: quality 0.7M31 00:20–00:30: quality 0.8M31 00:30–00:45: quality 0.7M31 00:45–01:05: quality 0.6M31 01:05–01:20: quality 0.5M31 01:20–01:30: quality 0.4observe M31 00:25–01:20M42M42 19:55–20:00: quality 0.3M42 20:00–20:15: quality 0.4M42 20:15–20:35: quality 0.5M42 20:35–20:55: quality 0.6M42 20:55–23:00: quality 0.7M42 23:00–00:20: quality 0.8M42 00:20–01:20: quality 0.9M42 01:20–02:30: quality 0.8M42 02:30–02:50: quality 0.7M42 02:50–03:05: quality 0.6M42 03:05–03:20: quality 0.5M42 03:20–03:30: quality 0.4observe M42 01:20–03:30M45M45 17:30–18:05: quality 0.1M45 18:05–18:40: quality 0.3M45 18:40–20:50: quality 0.7M45 20:50–00:20: quality 0.8M45 00:20–00:35: quality 1.0M45 00:35–01:55: quality 0.9M45 01:55–02:40: quality 0.8M45 02:40–02:55: quality 0.7M45 02:55–03:10: quality 0.6M45 03:10–03:20: quality 0.5M45 03:20–03:30: quality 0.4observe M45 21:15–22:50NGC 7000NGC 7000 17:30–18:05: quality 0.1NGC 7000 18:05–18:40: quality 0.4NGC 7000 18:40–20:10: quality 0.7NGC 7000 20:10–21:05: quality 0.6NGC 7000 21:05–21:30: quality 0.5NGC 7000 21:30–21:50: quality 0.4NGC 7000 21:50–22:00: quality 0.3observe NGC 7000 18:05–19:40V1057 CygV1057 Cyg 17:30–18:05: quality 0.1V1057 Cyg 18:05–18:40: quality 0.4V1057 Cyg 18:40–20:10: quality 0.7V1057 Cyg 20:10–21:05: quality 0.6V1057 Cyg 21:05–21:30: quality 0.5V1057 Cyg 21:30–21:50: quality 0.4V1057 Cyg 21:50–22:00: quality 0.3observe V1057 Cyg 19:40–21:15M33M33 17:30–18:05: quality 0.1M33 18:05–18:40: quality 0.3M33 18:40–00:20: quality 0.7M33 00:20–00:50: quality 0.8M33 00:50–01:05: quality 0.7M33 01:05–01:15: quality 0.6M33 01:15–01:30: quality 0.5M33 01:30–01:40: quality 0.4observe M33 22:50–00:25scheduleNGC 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
16:55–18:05 — nothing worth pointing at — 1.17
18:05–19:40 NGC 7000 1.58 0.57
19:40–21:15 V1057 Cyg 1.58 0.63
21:15–22:50 M45 1.58 0.78
22:50–00:25 M33 1.58 0.69
00:25–01:20 M31 0.92 0.62
01:20–03:30 M42 2.17 0.71
03:30–07:50 — nothing worth pointing at — 4.33

Targets

targetastronomyoverallbest windowhighestMoon sep.scheduled h
M31 Andromeda Galaxy 80 unknown 18:40–00:55 (good) 89.6° at 18:45 43.1° 0.92
M42 Great Orion Nebula 88 unknown 20:45–02:55 (good) 42.9° at 23:40 76.6° 2.17
M45 Seven Sisters 96 unknown 18:40–03:00 (good) 72.5° at 21:50 54.5° 1.58
NGC 7000 North America Nebula 41 unknown 18:40–20:55 (good) 87.2° at 15:05 65.5° 1.58
V1057 Cyg 41 unknown 18:40–20:55 (good) 87.3° at 15:05 65.4° 1.58
M33 Triangulum Pinwheel 82 unknown 18:40–01:10 (good) 79.1° at 19:40 35.9° 1.58
💡 API 
curl -sS "https://devops.majbase.com/rozhen-planner/plan-api?targets=M31,M42,M45,NGC%207000&date=2036-12-25"

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"}.