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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 Friday, 30 October 2037 · astronomical night 18:51 → 05:18 (10.44 h) · Moon 60% (waning gibbous) · weather: none — the schedule is astronomy only; overall conditions unknown

M31M31 17:50–18:20: quality 0.1M31 18:20–18:25: quality 0.4M31 18:25–18:55: quality 0.5M31 18:55–19:05: quality 0.9M31 19:05–22:15: quality 1.0M31 22:15–23:55: quality 0.9M31 23:55–02:10: quality 0.8M31 02:10–03:40: quality 0.7M31 03:40–04:20: quality 0.6M31 04:20–04:40: quality 0.5M31 04:40–05:00: quality 0.4M31 05:00–05:10: quality 0.3observe M31 22:10–00:05M42M42 23:35–23:45: quality 0.3M42 23:45–00:10: quality 0.4M42 00:10–00:35: quality 0.5M42 00:35–03:05: quality 0.6M42 03:05–05:20: quality 0.5M42 05:20–05:55: quality 0.2M42 05:55–06:25: quality 0.1observe M42 03:55–05:20M45M45 20:00–20:05: quality 0.4M45 20:05–20:20: quality 0.5M45 20:20–20:30: quality 0.6M45 20:30–20:45: quality 0.7M45 20:45–21:35: quality 0.8M45 21:35–22:15: quality 0.9M45 22:15–22:40: quality 0.7M45 22:40–00:20: quality 0.8M45 00:20–03:45: quality 0.7M45 03:45–05:20: quality 0.6M45 05:20–05:55: quality 0.3M45 05:55–06:25: quality 0.1observe M45 02:00–03:55NGC 7000NGC 7000 17:50–18:20: quality 0.2NGC 7000 18:20–18:55: quality 0.5NGC 7000 18:55–22:15: quality 1.0NGC 7000 22:15–22:45: quality 0.9NGC 7000 22:45–00:10: quality 0.8NGC 7000 00:10–00:45: quality 0.7NGC 7000 00:45–01:05: quality 0.6NGC 7000 01:05–01:20: quality 0.5NGC 7000 01:20–01:40: quality 0.4observe NGC 7000 18:20–20:15V1057 CygV1057 Cyg 17:50–18:20: quality 0.2V1057 Cyg 18:20–18:55: quality 0.5V1057 Cyg 18:55–22:15: quality 1.0V1057 Cyg 22:15–22:45: quality 0.9V1057 Cyg 22:45–00:10: quality 0.8V1057 Cyg 00:10–00:45: quality 0.7V1057 Cyg 00:45–01:05: quality 0.6V1057 Cyg 01:05–01:20: quality 0.5V1057 Cyg 01:20–01:40: quality 0.4observe V1057 Cyg 20:15–22:10M33M33 17:50–18:20: quality 0.1M33 18:20–18:55: quality 0.4M33 18:55–19:00: quality 0.8M33 19:00–20:20: quality 0.9M33 20:20–22:15: quality 1.0M33 22:15–23:15: quality 0.9M33 23:15–02:20: quality 0.8M33 02:20–03:40: quality 0.7M33 03:40–04:35: quality 0.6M33 04:35–04:50: quality 0.5M33 04:50–05:10: quality 0.4M33 05:10–05:20: quality 0.3observe M33 00:05–02:00scheduleNGC 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
17:15–18:20 — nothing worth pointing at — 1.08
18:20–20:15 NGC 7000 1.92 0.85
20:15–22:10 V1057 Cyg 1.92 0.99
22:10–00:05 M31 1.92 0.87
00:05–02:00 M33 1.92 0.81
02:00–03:55 M45 1.92 0.67
03:55–05:20 M42 1.42 0.51
05:20–06:55 — nothing worth pointing at — 1.58

Targets

targetastronomyoverallbest windowhighestMoon sep.scheduled h
M31 Andromeda Galaxy 100 unknown 18:55–04:10 (good) 89.5° at 22:30 88.2° 1.92
M42 Great Orion Nebula 45 unknown 23:35–05:20 (marginal) 42.9° at 03:20 42.7° 1.42
M45 Seven Sisters 90 unknown 20:25–04:35 (good) 72.5° at 01:30 56.2° 1.92
NGC 7000 North America Nebula 100 unknown 18:55–00:55 (good) 87.2° at 18:45 112.6° 1.92
V1057 Cyg 100 unknown 18:55–00:55 (good) 87.3° at 18:45 112.7° 1.92
M33 Triangulum Pinwheel 100 unknown 18:55–04:25 (good) 79.2° at 23:20 82.9° 1.92
💡 API 
curl -sS "https://devops.majbase.com/rozhen-planner/plan-api?targets=M31,M42,M45,NGC%207000&date=2037-10-30"

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"}.