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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, 15 September 2046 · astronomical night 21:04 → 05:27 (8.38 h) · Moon 100% (full moon) · weather: none — the schedule is astronomy only; overall conditions unknown

M31M31 20:20–20:35: quality 0.1M31 20:35–21:05: quality 0.2M31 21:05–00:55: quality 0.4M31 00:55–02:25: quality 0.3M31 02:25–05:20: quality 0.4M31 05:20–05:30: quality 0.5M31 05:30–06:05: quality 0.2M31 06:05–06:35: quality 0.1observe M31 23:50–01:25M42M42 03:30–03:50: quality 0.3M42 03:50–04:15: quality 0.4M42 04:15–04:40: quality 0.5M42 04:40–05:30: quality 0.6M42 05:30–06:05: quality 0.3M42 06:05–06:35: quality 0.1observe M42 04:35–05:30observe M42 05:35–06:05M45M45 23:55–00:10: quality 0.2M45 00:10–00:40: quality 0.3M45 00:40–02:40: quality 0.4M45 02:40–05:00: quality 0.5M45 05:00–05:30: quality 0.6M45 05:30–06:05: quality 0.3M45 06:05–06:35: quality 0.1observe M45 01:25–03:00NGC 7000NGC 7000 20:00–20:35: quality 0.1NGC 7000 20:35–21:05: quality 0.3NGC 7000 21:05–21:55: quality 0.6NGC 7000 21:55–01:30: quality 0.5NGC 7000 01:30–04:50: quality 0.4NGC 7000 04:50–05:25: quality 0.3NGC 7000 05:25–05:30: quality 0.2NGC 7000 05:30–05:35: quality 0.1observe NGC 7000 20:35–21:00observe NGC 7000 21:05–22:15V1057 CygV1057 Cyg 20:00–20:35: quality 0.1V1057 Cyg 20:35–21:05: quality 0.3V1057 Cyg 21:05–21:55: quality 0.6V1057 Cyg 21:55–01:30: quality 0.5V1057 Cyg 01:30–04:50: quality 0.4V1057 Cyg 04:50–05:25: quality 0.3V1057 Cyg 05:25–05:30: quality 0.2V1057 Cyg 05:30–05:35: quality 0.1observe V1057 Cyg 22:15–23:50M33M33 21:20–21:40: quality 0.2M33 21:40–03:20: quality 0.3M33 03:20–05:30: quality 0.4M33 05:30–06:05: quality 0.2M33 06:05–06:35: quality 0.1observe M33 03:00–04:35scheduleNGC 7000V1057 CygM31M45M33M4220:0022:0000:0002:0004:0006:00

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
19:30–20:35 — nothing worth pointing at — 1.08
20:35–21:00 NGC 7000 0.42 0.31
21:00–21:05 — nothing worth pointing at — 0.08
21:05–22:15 NGC 7000 1.17 0.56
22:15–23:50 V1057 Cyg 1.58 0.5
23:50–01:25 M31 1.58 0.36
01:25–03:00 M45 1.58 0.43
03:00–04:35 M33 1.58 0.37
04:35–05:30 M42 0.92 0.57
05:30–05:35 — nothing worth pointing at — 0.08
05:35–06:05 M42 0.5 0.31
06:05–07:05 — nothing worth pointing at — 1.0

Targets

targetastronomyoverallbest windowhighestMoon sep.scheduled h
M31 Andromeda Galaxy 40 unknown 21:05–05:30 (marginal) 89.7° at 02:25 38.8° 1.58
M42 Great Orion Nebula 18 unknown 03:40–05:30 (marginal) 42.9° at 07:15 85.6° 1.42
M45 Seven Sisters 38 unknown 00:25–05:30 (marginal) 72.6° at 05:30 59.3° 1.58
NGC 7000 North America Nebula 59 unknown 21:05–05:10 (marginal) 87.2° at 22:40 55.7° 1.58
V1057 Cyg 59 unknown 21:05–05:10 (marginal) 87.2° at 22:40 55.6° 1.58
M33 Triangulum Pinwheel 33 unknown 22:00–05:30 (marginal) 79.2° at 03:15 35.5° 1.58
💡 API 
curl -sS "https://devops.majbase.com/rozhen-planner/plan-api?targets=M31,M42,M45,NGC%207000&date=2046-09-15"

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"}.