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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, 24 October 2031 · astronomical night 19:59 → 06:11 (10.19 h) · Moon 68% (waxing gibbous) · weather: none — the schedule is astronomy only; overall conditions unknown

M31M31 19:00–19:30: quality 0.1M31 19:30–20:00: quality 0.3M31 20:00–20:10: quality 0.6M31 20:10–23:55: quality 0.7M31 23:55–02:10: quality 0.8M31 02:10–03:20: quality 1.0M31 03:20–04:45: quality 0.9M31 04:45–05:40: quality 0.8M31 05:40–05:55: quality 0.7M31 05:55–06:10: quality 0.6M31 06:10–06:15: quality 0.5M31 06:15–06:20: quality 0.3M31 06:20–06:35: quality 0.2observe M31 21:25–23:20M42M42 01:00–01:10: quality 0.4M42 01:10–01:30: quality 0.5M42 01:30–01:45: quality 0.6M42 01:45–02:05: quality 0.7M42 02:05–03:05: quality 0.8M42 03:05–06:15: quality 0.9M42 06:15–06:45: quality 0.4M42 06:45–07:20: quality 0.1observe M42 03:10–05:30M45M45 21:25–21:45: quality 0.4M45 21:45–22:00: quality 0.5M45 22:00–22:15: quality 0.6M45 22:15–23:30: quality 0.7M45 23:30–00:50: quality 0.8M45 00:50–02:10: quality 0.9M45 02:10–05:40: quality 1.0M45 05:40–06:15: quality 0.9M45 06:15–06:20: quality 0.5M45 06:20–06:45: quality 0.4M45 06:45–07:20: quality 0.1observe M45 01:15–03:10observe M45 06:00–06:45NGC 7000NGC 7000 19:00–19:30: quality 0.1NGC 7000 19:30–20:00: quality 0.3NGC 7000 20:00–00:25: quality 0.7NGC 7000 00:25–02:10: quality 0.6NGC 7000 02:10–02:20: quality 0.7NGC 7000 02:20–02:40: quality 0.6NGC 7000 02:40–02:55: quality 0.5NGC 7000 02:55–03:05: quality 0.4observe NGC 7000 19:30–21:25V1057 CygV1057 Cyg 19:00–19:30: quality 0.1V1057 Cyg 19:30–20:00: quality 0.3V1057 Cyg 20:00–00:25: quality 0.7V1057 Cyg 00:25–02:10: quality 0.6V1057 Cyg 02:10–02:20: quality 0.7V1057 Cyg 02:20–02:40: quality 0.6V1057 Cyg 02:40–02:55: quality 0.5V1057 Cyg 02:55–03:05: quality 0.4M33M33 19:00–19:30: quality 0.1M33 19:30–20:00: quality 0.3M33 20:00–21:10: quality 0.6M33 21:10–23:25: quality 0.7M33 23:25–02:10: quality 0.8M33 02:10–03:45: quality 1.0M33 03:45–05:05: quality 0.9M33 05:05–05:55: quality 0.8M33 05:55–06:10: quality 0.7M33 06:10–06:15: quality 0.6M33 06:15–06:30: quality 0.3M33 06:30–06:45: quality 0.2observe M33 23:20–01:15observe M33 05:30–06:00scheduleNGC 7000M31M33M45M42M4520:0022:0000:0002:0004:0006:00

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
18:25–19:30 — nothing worth pointing at — 1.08
19:30–21:25 NGC 7000 1.92 0.57
21:25–23:20 M31 1.92 0.72
23:20–01:15 M33 1.92 0.77
01:15–03:10 M45 1.92 0.94
03:10–05:30 M42 2.33 0.88
05:30–06:00 M33 0.5 0.79
06:00–06:45 M45 0.75 0.6
06:45–07:45 — nothing worth pointing at — 1.0

Targets

targetastronomyoverallbest windowhighestMoon sep.scheduled h
M31 Andromeda Galaxy 100 unknown 20:00–06:00 (good) 89.6° at 23:55 66.6° 1.92
M42 Great Orion Nebula 89 unknown 01:35–06:15 (good) 42.9° at 04:45 119.2° 2.33
M45 Seven Sisters 100 unknown 22:10–06:15 (good) 72.5° at 02:55 96.9° 2.67
NGC 7000 North America Nebula 70 unknown 20:00–02:00 (good) 87.2° at 20:10 53.9° 1.92
V1057 Cyg 70 unknown 20:00–02:00 (good) 87.3° at 20:10 53.9° 0.0
M33 Triangulum Pinwheel 100 unknown 20:15–06:15 (good) 79.1° at 00:45 70.2° 2.42

Left out

💡 API 
curl -sS "https://devops.majbase.com/rozhen-planner/plan-api?targets=M31,M42,M45,NGC%207000&date=2031-10-24"

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"}.