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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 Saturday, 13 October 2035 · astronomical night 20:15 → 05:59 (9.73 h) · Moon 89% (waxing gibbous) · weather: none — the schedule is astronomy only; overall conditions unknown

M31M31 19:15–19:45: quality 0.1M31 19:45–20:20: quality 0.3M31 20:20–21:45: quality 0.5M31 21:45–02:45: quality 0.6M31 02:45–04:20: quality 0.7M31 04:20–05:30: quality 0.9M31 05:30–06:00: quality 0.8M31 06:00–06:30: quality 0.4M31 06:30–06:35: quality 0.3M31 06:35–07:05: quality 0.1observe M31 01:15–03:05M42M42 01:45–01:50: quality 0.3M42 01:50–02:05: quality 0.4M42 02:05–02:25: quality 0.5M42 02:25–02:45: quality 0.6M42 02:45–04:15: quality 0.7M42 04:15–04:20: quality 0.8M42 04:20–06:00: quality 0.9M42 06:00–06:35: quality 0.4M42 06:35–07:05: quality 0.1observe M42 03:05–04:55M45M45 22:05–22:25: quality 0.3M45 22:25–22:45: quality 0.4M45 22:45–23:15: quality 0.5M45 23:15–00:50: quality 0.6M45 00:50–02:55: quality 0.7M45 02:55–04:20: quality 0.8M45 04:20–06:00: quality 1.0M45 06:00–06:35: quality 0.5M45 06:35–07:05: quality 0.1observe M45 23:25–01:15NGC 7000NGC 7000 19:15–19:45: quality 0.1NGC 7000 19:45–20:20: quality 0.3NGC 7000 20:20–00:35: quality 0.6NGC 7000 00:35–03:00: quality 0.5NGC 7000 03:00–03:30: quality 0.4NGC 7000 03:30–03:50: quality 0.3observe NGC 7000 19:45–21:35V1057 CygV1057 Cyg 19:15–19:45: quality 0.1V1057 Cyg 19:45–20:20: quality 0.3V1057 Cyg 20:20–00:35: quality 0.6V1057 Cyg 00:35–03:00: quality 0.5V1057 Cyg 03:00–03:30: quality 0.4V1057 Cyg 03:30–03:50: quality 0.3observe V1057 Cyg 21:35–23:25M33M33 19:45–20:20: quality 0.2M33 20:20–20:25: quality 0.4M33 20:25–23:10: quality 0.5M33 23:10–02:45: quality 0.6M33 02:45–04:20: quality 0.7M33 04:20–04:30: quality 1.0M33 04:30–05:50: quality 0.9M33 05:50–06:00: quality 0.8M33 06:00–06:35: quality 0.4M33 06:35–07:05: quality 0.1observe M33 04:55–06:35scheduleNGC 7000V1057 CygM45M31M42M3320:0022:0000:0002:0004:0006:00

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
18:40–19:45 — nothing worth pointing at — 1.08
19:45–21:35 NGC 7000 1.83 0.5
21:35–23:25 V1057 Cyg 1.83 0.57
23:25–01:15 M45 1.83 0.62
01:15–03:05 M31 1.83 0.63
03:05–04:55 M42 1.83 0.77
04:55–06:35 M33 1.67 0.71
06:35–07:35 — nothing worth pointing at — 1.0

Targets

targetastronomyoverallbest windowhighestMoon sep.scheduled h
M31 Andromeda Galaxy 93 unknown 01:25–06:00 (good) 89.6° at 00:35 55.6° 1.83
M42 Great Orion Nebula 76 unknown 02:35–06:00 (good) 42.9° at 05:30 100.3° 1.83
M45 Seven Sisters 100 unknown 00:05–06:00 (good) 72.5° at 03:40 78.9° 1.83
NGC 7000 North America Nebula 60 unknown 20:20–20:25 (good) 87.2° at 20:55 58.1° 1.83
V1057 Cyg 60 unknown 19:45–03:45 (marginal) 87.3° at 20:55 58.0° 1.83
M33 Triangulum Pinwheel 96 unknown 01:30–06:00 (good) 79.1° at 01:30 55.0° 1.67
💡 API 
curl -sS "https://devops.majbase.com/rozhen-planner/plan-api?targets=M31,M42,M45,NGC%207000&date=2035-10-13"

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"}.