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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 Wednesday, 08 October 2031 · astronomical night 20:23 → 05:53 (9.5 h) · Moon 46% (waning crescent) · weather: none — the schedule is astronomy only; overall conditions unknown

M31M31 19:20–19:55: quality 0.1M31 19:55–20:25: quality 0.4M31 20:25–21:35: quality 0.9M31 21:35–00:40: quality 1.0M31 00:40–03:50: quality 0.9M31 03:50–05:10: quality 0.8M31 05:10–05:55: quality 0.7M31 05:55–06:00: quality 0.4M31 06:00–06:30: quality 0.3M31 06:30–07:00: quality 0.1observe M31 23:35–01:25M42M42 02:05–02:10: quality 0.3M42 02:10–02:30: quality 0.4M42 02:30–02:55: quality 0.5M42 02:55–05:55: quality 0.6M42 05:55–06:30: quality 0.3M42 06:30–07:00: quality 0.1observe M42 05:05–06:20M45M45 22:25–22:35: quality 0.4M45 22:35–22:45: quality 0.5M45 22:45–23:00: quality 0.6M45 23:00–23:15: quality 0.7M45 23:15–00:00: quality 0.8M45 00:00–00:40: quality 0.9M45 00:40–04:50: quality 0.8M45 04:50–05:55: quality 0.7M45 05:55–06:30: quality 0.4M45 06:30–07:00: quality 0.1observe M45 03:15–05:05observe M45 06:20–06:30NGC 7000NGC 7000 19:20–19:55: quality 0.2NGC 7000 19:55–20:25: quality 0.5NGC 7000 20:25–00:40: quality 1.0NGC 7000 00:40–01:30: quality 0.9NGC 7000 01:30–03:00: quality 0.8NGC 7000 03:00–03:15: quality 0.7NGC 7000 03:15–03:35: quality 0.6NGC 7000 03:35–03:50: quality 0.5NGC 7000 03:50–04:05: quality 0.4observe NGC 7000 19:55–21:45V1057 CygV1057 Cyg 19:20–19:55: quality 0.2V1057 Cyg 19:55–20:25: quality 0.5V1057 Cyg 20:25–00:40: quality 1.0V1057 Cyg 00:40–01:30: quality 0.9V1057 Cyg 01:30–03:00: quality 0.8V1057 Cyg 03:00–03:15: quality 0.7V1057 Cyg 03:15–03:35: quality 0.6V1057 Cyg 03:35–03:50: quality 0.5V1057 Cyg 03:50–04:05: quality 0.4observe V1057 Cyg 21:45–23:35M33M33 19:50–19:55: quality 0.1M33 19:55–20:05: quality 0.2M33 20:05–20:25: quality 0.3M33 20:25–20:40: quality 0.7M33 20:40–21:30: quality 0.8M33 21:30–22:50: quality 0.9M33 22:50–00:40: quality 1.0M33 00:40–03:20: quality 0.9M33 03:20–05:20: quality 0.8M33 05:20–05:55: quality 0.7M33 05:55–06:00: quality 0.4M33 06:00–06:30: quality 0.3M33 06:30–07:00: quality 0.1observe M33 01:25–03:15scheduleNGC 7000V1057 CygM31M33M45M4220:0022:0000:0002:0004:0006:00

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
18:50–19:55 — nothing worth pointing at — 1.08
19:55–21:45 NGC 7000 1.83 0.86
21:45–23:35 V1057 Cyg 1.83 1.0
23:35–01:25 M31 1.83 0.96
01:25–03:15 M33 1.83 0.87
03:15–05:05 M45 1.83 0.76
05:05–06:20 M42 1.25 0.51
06:20–06:30 M45 0.17 0.35
06:30–07:30 — nothing worth pointing at — 1.0

Targets

targetastronomyoverallbest windowhighestMoon sep.scheduled h
M31 Andromeda Galaxy 100 unknown 20:25–05:55 (good) 89.7° at 00:55 86.4° 1.83
M42 Great Orion Nebula 37 unknown 03:05–05:55 (good) 42.9° at 05:50 35.6° 1.25
M45 Seven Sisters 90 unknown 22:55–05:55 (good) 72.5° at 04:00 51.5° 2.0
NGC 7000 North America Nebula 100 unknown 20:25–03:25 (good) 87.2° at 21:10 114.8° 1.83
V1057 Cyg 100 unknown 20:25–03:25 (good) 87.3° at 21:10 114.8° 1.83
M33 Triangulum Pinwheel 100 unknown 20:25–05:55 (good) 79.1° at 01:45 79.6° 1.83
💡 API 
curl -sS "https://devops.majbase.com/rozhen-planner/plan-api?targets=M31,M42,M45,NGC%207000&date=2031-10-08"

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"}.