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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, 25 October 2043 · astronomical night 18:58 → 05:12 (10.23 h) · Moon 41% (waning crescent) · weather: none — the schedule is astronomy only; overall conditions unknown

M31M31 17:55–18:30: quality 0.1M31 18:30–18:45: quality 0.4M31 18:45–19:00: quality 0.5M31 19:00–19:30: quality 0.9M31 19:30–00:00: quality 1.0M31 00:00–02:30: quality 0.9M31 02:30–03:55: quality 0.8M31 03:55–04:40: quality 0.7M31 04:40–04:55: quality 0.6M31 04:55–05:15: quality 0.5M31 05:15–05:30: quality 0.2observe M31 22:20–00:15M42M42 23:55–00:15: quality 0.4M42 00:15–00:35: quality 0.5M42 00:35–00:55: quality 0.6M42 00:55–05:15: quality 0.7M42 05:15–05:45: quality 0.3M42 05:45–06:20: quality 0.1observe M42 04:05–05:45M45M45 20:20–20:25: quality 0.4M45 20:25–20:40: quality 0.5M45 20:40–20:55: quality 0.6M45 20:55–21:05: quality 0.7M45 21:05–21:55: quality 0.8M45 21:55–23:15: quality 0.9M45 23:15–00:00: quality 1.0M45 00:00–02:40: quality 0.9M45 02:40–05:00: quality 0.8M45 05:00–05:15: quality 0.7M45 05:15–05:45: quality 0.4M45 05:45–06:20: quality 0.1observe M45 02:10–04:05NGC 7000NGC 7000 17:55–18:30: quality 0.2NGC 7000 18:30–19:00: quality 0.5NGC 7000 19:00–22:35: quality 1.0NGC 7000 22:35–00:00: quality 0.9NGC 7000 00:00–00:55: quality 0.8NGC 7000 00:55–01:10: quality 0.7NGC 7000 01:10–01:30: quality 0.6NGC 7000 01:30–01:45: quality 0.5NGC 7000 01:45–02:00: quality 0.4observe NGC 7000 18:30–20:25V1057 CygV1057 Cyg 17:55–18:30: quality 0.2V1057 Cyg 18:30–19:00: quality 0.5V1057 Cyg 19:00–22:35: quality 1.0V1057 Cyg 22:35–00:00: quality 0.9V1057 Cyg 00:00–00:55: quality 0.8V1057 Cyg 00:55–01:10: quality 0.7V1057 Cyg 01:10–01:30: quality 0.6V1057 Cyg 01:30–01:45: quality 0.5V1057 Cyg 01:45–02:00: quality 0.4observe V1057 Cyg 20:25–22:20M33M33 17:55–18:30: quality 0.1M33 18:30–19:00: quality 0.4M33 19:00–19:25: quality 0.8M33 19:25–20:45: quality 0.9M33 20:45–00:00: quality 1.0M33 00:00–02:50: quality 0.9M33 02:50–04:10: quality 0.8M33 04:10–04:55: quality 0.7M33 04:55–05:10: quality 0.6M33 05:10–05:15: quality 0.5M33 05:15–05:20: quality 0.3M33 05:20–05:40: quality 0.2observe M33 00:15–02:10scheduleNGC 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
17:25–18:30 — nothing worth pointing at — 1.08
18:30–20:25 NGC 7000 1.92 0.87
20:25–22:20 V1057 Cyg 1.92 1.0
22:20–00:15 M31 1.92 0.99
00:15–02:10 M33 1.92 0.92
02:10–04:05 M45 1.92 0.84
04:05–05:45 M42 1.67 0.58
05:45–06:50 — nothing worth pointing at — 1.08

Targets

targetastronomyoverallbest windowhighestMoon sep.scheduled h
M31 Andromeda Galaxy 100 unknown 19:00–04:45 (good) 89.8° at 22:50 100.2° 1.92
M42 Great Orion Nebula 67 unknown 00:45–05:15 (good) 42.9° at 03:40 57.7° 1.67
M45 Seven Sisters 100 unknown 20:45–05:15 (good) 72.5° at 01:55 72.7° 1.92
NGC 7000 North America Nebula 100 unknown 19:00–01:20 (good) 87.2° at 19:05 115.0° 1.92
V1057 Cyg 100 unknown 19:00–01:20 (good) 87.3° at 19:05 115.1° 1.92
M33 Triangulum Pinwheel 100 unknown 19:00–05:00 (good) 79.2° at 23:40 97.6° 1.92
💡 API 
curl -sS "https://devops.majbase.com/rozhen-planner/plan-api?targets=M31,M42,M45,NGC%207000&date=2043-10-25"

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"}.