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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, 13 October 2028 · astronomical night 20:14 → 06:00 (9.76 h) · Moon 24% (waning crescent) · weather: none — the schedule is astronomy only; overall conditions unknown

M31M31 19:15–19:45: quality 0.1M31 19:45–20:15: quality 0.4M31 20:15–21:15: quality 0.9M31 21:15–03:35: quality 1.0M31 03:35–05:00: quality 0.9M31 05:00–06:05: quality 0.8M31 06:05–06:20: quality 0.4M31 06:20–06:35: quality 0.3M31 06:35–07:05: quality 0.1observe M31 23:25–01:15M42M42 01:40–01:50: quality 0.4M42 01:50–02:05: quality 0.5M42 02:05–02:20: quality 0.6M42 02:20–02:35: quality 0.7M42 02:35–06:05: quality 0.8M42 06:05–06:35: quality 0.4M42 06:35–07:05: quality 0.1observe M42 04:55–06:35M45M45 22:05–22:10: quality 0.4M45 22:10–22:25: quality 0.5M45 22:25–22:40: quality 0.6M45 22:40–22:50: quality 0.7M45 22:50–23:40: quality 0.8M45 23:40–01:00: quality 0.9M45 01:00–02:55: quality 1.0M45 02:55–06:05: quality 0.9M45 06:05–06:35: quality 0.4M45 06:35–07:05: quality 0.1observe M45 03:05–04:55NGC 7000NGC 7000 19:15–19:45: quality 0.2NGC 7000 19:45–20:15: quality 0.5NGC 7000 20:15–00:20: quality 1.0NGC 7000 00:20–01:50: quality 0.9NGC 7000 01:50–02:45: quality 0.8NGC 7000 02:45–03:00: quality 0.7NGC 7000 03:00–03:15: quality 0.6NGC 7000 03:15–03:35: quality 0.5NGC 7000 03:35–03:45: quality 0.4observe NGC 7000 19:45–21:35V1057 CygV1057 Cyg 19:15–19:45: quality 0.2V1057 Cyg 19:45–20:15: quality 0.5V1057 Cyg 20:15–00:20: quality 1.0V1057 Cyg 00:20–01:50: quality 0.9V1057 Cyg 01:50–02:45: quality 0.8V1057 Cyg 02:45–03:00: quality 0.7V1057 Cyg 03:00–03:15: quality 0.6V1057 Cyg 03:15–03:35: quality 0.5V1057 Cyg 03:35–03:45: quality 0.4observe V1057 Cyg 21:35–23:25M33M33 19:30–19:45: quality 0.1M33 19:45–20:10: quality 0.3M33 20:10–20:15: quality 0.4M33 20:15–20:20: quality 0.7M33 20:20–21:05: quality 0.8M33 21:05–22:25: quality 0.9M33 22:25–04:00: quality 1.0M33 04:00–05:20: quality 0.9M33 05:20–06:05: quality 0.8M33 06:05–06:35: quality 0.4M33 06:35–07:05: quality 0.1observe M33 01:15–03:05scheduleNGC 7000V1057 CygM31M33M45M4220:0022:0000:0002:0004:0006:00

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
18:40–19:45 — nothing worth pointing at — 1.08
19:45–21:35 NGC 7000 1.83 0.86
21:35–23:25 V1057 Cyg 1.83 1.0
23:25–01:15 M31 1.83 1.0
01:15–03:05 M33 1.83 1.0
03:05–04:55 M45 1.83 0.94
04:55–06:35 M42 1.67 0.67
06:35–07:35 — nothing worth pointing at — 1.0

Targets

targetastronomyoverallbest windowhighestMoon sep.scheduled h
M31 Andromeda Galaxy 100 unknown 20:15–06:05 (good) 89.6° at 00:35 112.0° 1.83
M42 Great Orion Nebula 71 unknown 02:10–06:05 (good) 42.9° at 05:25 62.0° 1.67
M45 Seven Sisters 100 unknown 22:30–06:05 (good) 72.5° at 03:35 82.9° 1.83
NGC 7000 North America Nebula 100 unknown 20:15–03:10 (good) 87.2° at 20:50 123.7° 1.83
V1057 Cyg 100 unknown 20:15–03:05 (good) 87.3° at 20:50 123.8° 1.83
M33 Triangulum Pinwheel 100 unknown 20:15–06:05 (good) 79.1° at 01:25 109.0° 1.83

💡 API
curl -sS "https://devops.majbase.com/rozhen-planner/plan-api?targets=M31,M42,M45,NGC%207000&date=2028-10-13"

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"}.