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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, 04 October 2047 · astronomical night 20:30 → 05:49 (9.32 h) · Moon 99% (full moon) · weather: none — the schedule is astronomy only; overall conditions unknown

M31M31 19:30–20:00: quality 0.1M31 20:00–20:35: quality 0.2M31 20:35–22:35: quality 0.4M31 22:35–05:50: quality 0.3M31 05:50–06:25: quality 0.2M31 06:25–06:55: quality 0.1observe M31 23:20–23:40M42M42 02:20–02:35: quality 0.2M42 02:35–03:05: quality 0.3M42 03:05–04:05: quality 0.4M42 04:05–05:50: quality 0.5M42 05:50–06:25: quality 0.3M42 06:25–06:55: quality 0.1observe M42 03:40–05:20M45M45 22:40–23:25: quality 0.2M45 23:25–04:00: quality 0.3M45 04:00–05:50: quality 0.4M45 05:50–06:25: quality 0.2M45 06:25–06:55: quality 0.1observe M45 02:00–03:40NGC 7000NGC 7000 19:30–20:00: quality 0.1NGC 7000 20:00–20:35: quality 0.3NGC 7000 20:35–22:15: quality 0.6NGC 7000 22:15–01:00: quality 0.5NGC 7000 01:00–03:30: quality 0.4NGC 7000 03:30–04:05: quality 0.3NGC 7000 04:05–04:25: quality 0.2observe NGC 7000 20:00–21:40observe NGC 7000 23:40–02:00V1057 CygV1057 Cyg 19:30–20:00: quality 0.1V1057 Cyg 20:00–20:35: quality 0.3V1057 Cyg 20:35–22:15: quality 0.6V1057 Cyg 22:15–01:00: quality 0.5V1057 Cyg 01:00–03:30: quality 0.4V1057 Cyg 03:30–04:05: quality 0.3V1057 Cyg 04:05–04:25: quality 0.2observe V1057 Cyg 21:40–23:20M33M33 20:05–20:35: quality 0.1M33 20:35–21:00: quality 0.3M33 21:00–21:20: quality 0.4M33 21:20–05:30: quality 0.3M33 05:30–05:50: quality 0.4M33 05:50–06:25: quality 0.2M33 06:25–06:55: quality 0.1observe M33 05:20–05:50scheduleNGC 7000V1057 CygNGC 7000M45M4220:0022:0000:0002:0004:0006:00

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
18:55–20:00 — nothing worth pointing at — 1.08
20:00–21:40 NGC 7000 1.67 0.5
21:40–23:20 V1057 Cyg 1.67 0.54
23:20–23:40 M31 0.33 0.31
23:40–02:00 NGC 7000 2.33 0.46
02:00–03:40 M45 1.67 0.32
03:40–05:20 M42 1.67 0.47
05:20–05:50 M33 0.5 0.35
05:50–07:25 — nothing worth pointing at — 1.58

Targets

targetastronomyoverallbest windowhighestMoon sep.scheduled h
M31 Andromeda Galaxy 33 unknown 20:35–23:40 (marginal) 89.5° at 01:10 29.0° 0.33
M42 Great Orion Nebula 22 unknown 02:45–05:50 (marginal) 42.9° at 06:05 67.5° 1.67
M45 Seven Sisters 26 unknown 02:00–05:50 (marginal) 72.6° at 04:15 37.6° 1.67
NGC 7000 North America Nebula 61 unknown 20:35–21:10 (good) 87.2° at 21:30 62.2° 4.0
V1057 Cyg 61 unknown 20:35–21:10 (good) 87.2° at 21:30 62.2° 1.67
M33 Triangulum Pinwheel 27 unknown 20:40–23:30 (marginal) 79.2° at 02:05 18.1° 0.5

💡 API
curl -sS "https://devops.majbase.com/rozhen-planner/plan-api?targets=M31,M42,M45,NGC%207000&date=2047-10-04"

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"}.