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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, 22 October 2045 · astronomical night 20:01 → 06:09 (10.13 h) · Moon 91% (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 20:05–21:35: quality 0.5M31 21:35–00:20: quality 0.4M31 00:20–03:30: quality 0.5M31 03:30–05:05: quality 0.6M31 05:05–05:45: quality 0.8M31 05:45–06:00: quality 0.7M31 06:00–06:10: quality 0.6M31 06:10–06:25: quality 0.3M31 06:25–06:40: quality 0.2observe M31 01:35–03:25M42M42 01:05–01:20: quality 0.3M42 01:20–01:40: quality 0.4M42 01:40–02:00: quality 0.5M42 02:00–03:10: quality 0.6M42 03:10–05:05: quality 0.7M42 05:05–06:10: quality 0.9M42 06:10–06:45: quality 0.4M42 06:45–07:15: quality 0.1observe M42 03:25–05:15M45M45 21:30–21:35: quality 0.2M45 21:35–22:00: quality 0.3M45 22:00–22:30: quality 0.4M45 22:30–00:35: quality 0.5M45 00:35–03:00: quality 0.6M45 03:00–05:05: quality 0.7M45 05:05–05:45: quality 1.0M45 05:45–06:10: quality 0.9M45 06:10–06:25: quality 0.5M45 06:25–06:45: quality 0.4M45 06:45–07:15: quality 0.1observe M45 23:45–01:35observe M45 06:25–06:45NGC 7000NGC 7000 19:00–19:30: quality 0.1NGC 7000 19:30–20:05: quality 0.3NGC 7000 20:05–20:30: quality 0.6NGC 7000 20:30–02:05: quality 0.5NGC 7000 02:05–02:40: quality 0.4NGC 7000 02:40–03:10: quality 0.3observe NGC 7000 20:05–21:55V1057 CygV1057 Cyg 19:00–19:30: quality 0.1V1057 Cyg 19:30–20:05: quality 0.3V1057 Cyg 20:05–20:30: quality 0.6V1057 Cyg 20:30–02:05: quality 0.5V1057 Cyg 02:05–02:40: quality 0.4V1057 Cyg 02:40–03:10: quality 0.3observe V1057 Cyg 21:55–23:45M33M33 19:30–20:05: quality 0.2M33 20:05–00:50: quality 0.4M33 00:50–03:05: quality 0.5M33 03:05–05:05: quality 0.6M33 05:05–05:15: quality 0.9M33 05:15–06:00: quality 0.8M33 06:00–06:10: quality 0.7M33 06:10–06:35: quality 0.3M33 06:35–06:45: quality 0.2M33 06:45–06:50: quality 0.1observe M33 05:15–06:25scheduleNGC 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
18:25–20:05 — nothing worth pointing at — 1.67
20:05–21:55 NGC 7000 1.83 0.54
21:55–23:45 V1057 Cyg 1.83 0.51
23:45–01:35 M45 1.83 0.55
01:35–03:25 M31 1.83 0.53
03:25–05:15 M42 1.83 0.72
05:15–06:25 M33 1.17 0.7
06:25–06:45 M45 0.33 0.44
06:45–07:45 — nothing worth pointing at — 1.0

Targets

targetastronomyoverallbest windowhighestMoon sep.scheduled h
M31 Andromeda Galaxy 83 unknown 05:05–06:10 (good) 89.8° at 00:00 42.7° 1.83
M42 Great Orion Nebula 82 unknown 02:20–06:10 (good) 42.9° at 04:50 89.0° 1.83
M45 Seven Sisters 99 unknown 01:40–06:10 (good) 72.6° at 03:05 63.9° 2.17
NGC 7000 North America Nebula 51 unknown 20:05–02:55 (marginal) 87.2° at 20:15 56.1° 1.83
V1057 Cyg 51 unknown 20:05–02:55 (marginal) 87.3° at 20:15 56.0° 1.83
M33 Triangulum Pinwheel 86 unknown 05:05–06:10 (good) 79.2° at 00:50 40.1° 1.17
💡 API 
curl -sS "https://devops.majbase.com/rozhen-planner/plan-api?targets=M31,M42,M45,NGC%207000&date=2045-10-22"

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"}.