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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 Monday, 23 October 2045 · astronomical night 20:00 → 06:10 (10.17 h) · Moon 96% (waxing gibbous) · weather: none — the schedule is astronomy only; overall conditions unknown

M31M31 19:00–19:30: quality 0.1M31 19:30–20:05: quality 0.2M31 20:05–22:20: quality 0.4M31 22:20–00:50: quality 0.3M31 00:50–04:15: quality 0.4M31 04:15–05:40: quality 0.5M31 05:40–06:05: quality 0.4M31 06:05–06:15: quality 0.6M31 06:15–06:20: quality 0.3M31 06:20–06:40: quality 0.2observe M31 03:25–05:15M42M42 01:00–01:05: quality 0.2M42 01:05–01:25: quality 0.3M42 01:25–01:50: quality 0.4M42 01:50–02:50: quality 0.5M42 02:50–04:55: quality 0.6M42 04:55–06:05: quality 0.7M42 06:05–06:15: quality 0.9M42 06:15–06:45: quality 0.4M42 06:45–07:20: quality 0.1observe M42 01:35–03:25M45M45 21:25–21:45: quality 0.2M45 21:45–22:15: quality 0.3M45 22:15–01:00: quality 0.4M45 01:00–03:35: quality 0.5M45 03:35–06:05: quality 0.6M45 06:05–06:15: quality 0.9M45 06:15–06:25: quality 0.5M45 06:25–06:45: quality 0.4M45 06:45–07:20: quality 0.1observe M45 23:45–01:35observe M45 06:20–06:45NGC 7000NGC 7000 19:00–19:30: quality 0.1NGC 7000 19:30–20:05: quality 0.3NGC 7000 20:05–20:25: quality 0.6NGC 7000 20:25–23:55: quality 0.5NGC 7000 23:55–02:20: quality 0.4NGC 7000 02:20–03:00: quality 0.3NGC 7000 03:00–03:05: quality 0.2observe NGC 7000 20:05–21:55V1057 CygV1057 Cyg 19:00–19:30: quality 0.1V1057 Cyg 19:30–20:05: quality 0.3V1057 Cyg 20:05–20:20: quality 0.6V1057 Cyg 20:20–23:55: quality 0.5V1057 Cyg 23:55–02:20: quality 0.4V1057 Cyg 02:20–02:55: quality 0.3V1057 Cyg 02:55–03:05: quality 0.2observe V1057 Cyg 21:55–23:45M33M33 19:30–20:05: quality 0.2M33 20:05–01:50: quality 0.3M33 01:50–04:30: quality 0.4M33 04:30–06:00: quality 0.5M33 06:00–06:05: quality 0.4M33 06:05–06:10: quality 0.7M33 06:10–06:15: quality 0.6M33 06:15–06:35: quality 0.3M33 06:35–06:45: quality 0.2M33 06:45–06:50: quality 0.1observe M33 05:15–06:20scheduleNGC 7000V1057 CygM45M42M31M3320:0022:0000:0002:0004:0006:00

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
18:25–20:05 — nothing worth pointing at — 1.67
20:05–21:55 NGC 7000 1.83 0.53
21:55–23:45 V1057 Cyg 1.83 0.48
23:45–01:35 M45 1.83 0.43
01:35–03:25 M42 1.83 0.52
03:25–05:15 M31 1.83 0.45
05:15–06:20 M33 1.08 0.49
06:20–06:45 M45 0.42 0.44
06:45–07:45 — nothing worth pointing at — 1.0

Targets

targetastronomyoverallbest windowhighestMoon sep.scheduled h
M31 Andromeda Galaxy 58 unknown 20:05–06:15 (marginal) 89.8° at 23:55 34.9° 1.83
M42 Great Orion Nebula 71 unknown 03:45–06:15 (good) 42.9° at 04:45 78.7° 1.83
M45 Seven Sisters 92 unknown 04:35–06:15 (good) 72.6° at 03:00 51.6° 2.25
NGC 7000 North America Nebula 47 unknown 20:05–02:40 (marginal) 87.2° at 20:10 58.3° 1.83
V1057 Cyg 47 unknown 20:05–02:40 (marginal) 87.2° at 20:10 58.2° 1.83
M33 Triangulum Pinwheel 68 unknown 06:05–06:15 (good) 79.2° at 00:45 29.2° 1.08
💡 API 
curl -sS "https://devops.majbase.com/rozhen-planner/plan-api?targets=M31,M42,M45,NGC%207000&date=2045-10-23"

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"}.