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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 Tuesday, 15 October 2030 · astronomical night 20:12 → 06:01 (9.82 h) · Moon 82% (waning gibbous) · weather: none — the schedule is astronomy only; overall conditions unknown

M31M31 19:10–19:45: quality 0.1M31 19:45–20:15: quality 0.4M31 20:15–21:05: quality 0.9M31 21:05–23:05: quality 0.7M31 23:05–01:30: quality 0.6M31 01:30–04:30: quality 0.5M31 04:30–06:05: quality 0.4M31 06:05–06:35: quality 0.2observe M31 23:15–01:00M42M42 01:35–02:10: quality 0.2M42 02:10–06:05: quality 0.3M42 06:05–06:35: quality 0.2M42 06:35–07:10: quality 0.1observe M42 04:30–06:05M45M45 22:00–22:25: quality 0.3M45 22:25–22:50: quality 0.4M45 22:50–23:30: quality 0.5M45 23:30–06:05: quality 0.4M45 06:05–06:35: quality 0.2M45 06:35–07:10: quality 0.1observe M45 02:45–04:30NGC 7000NGC 7000 19:10–19:45: quality 0.2NGC 7000 19:45–20:15: quality 0.5NGC 7000 20:15–21:05: quality 1.0NGC 7000 21:05–21:10: quality 0.9NGC 7000 21:10–00:00: quality 0.8NGC 7000 00:00–01:25: quality 0.7NGC 7000 01:25–02:35: quality 0.6NGC 7000 02:35–03:00: quality 0.5NGC 7000 03:00–03:25: quality 0.4NGC 7000 03:25–03:40: quality 0.3observe NGC 7000 19:45–21:30V1057 CygV1057 Cyg 19:10–19:45: quality 0.2V1057 Cyg 19:45–20:15: quality 0.5V1057 Cyg 20:15–21:05: quality 1.0V1057 Cyg 21:05–21:10: quality 0.9V1057 Cyg 21:10–00:00: quality 0.8V1057 Cyg 00:00–01:25: quality 0.7V1057 Cyg 01:25–02:35: quality 0.6V1057 Cyg 02:35–03:00: quality 0.5V1057 Cyg 03:00–03:25: quality 0.4V1057 Cyg 03:25–03:40: quality 0.3observe V1057 Cyg 21:30–23:15M33M33 19:25–19:45: quality 0.1M33 19:45–20:05: quality 0.3M33 20:05–20:15: quality 0.4M33 20:15–21:00: quality 0.8M33 21:00–21:05: quality 0.9M33 21:05–00:15: quality 0.6M33 00:15–03:10: quality 0.5M33 03:10–06:05: quality 0.4M33 06:05–06:35: quality 0.2observe M33 01:00–02:45scheduleNGC 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
19:45–21:30 NGC 7000 1.75 0.82
21:30–23:15 V1057 Cyg 1.75 0.82
23:15–01:00 M31 1.75 0.6
01:00–02:45 M33 1.75 0.49
02:45–04:30 M45 1.75 0.37
04:30–06:05 M42 1.58 0.32
06:05–07:35 — nothing worth pointing at — 1.5

Targets

targetastronomyoverallbest windowhighestMoon sep.scheduled h
M31 Andromeda Galaxy 94 unknown 20:15–00:10 (good) 89.5° at 00:30 53.7° 1.75
M42 Great Orion Nebula 12 unknown 02:30–06:05 (marginal) 42.9° at 05:20 30.0° 1.58
M45 Seven Sisters 38 unknown 22:10–06:05 (marginal) 72.5° at 03:30 13.4° 1.75
NGC 7000 North America Nebula 100 unknown 20:15–02:10 (good) 87.2° at 20:45 91.9° 1.75
V1057 Cyg 100 unknown 20:15–02:10 (good) 87.3° at 20:45 91.9° 1.75
M33 Triangulum Pinwheel 85 unknown 20:15–23:15 (good) 79.1° at 01:20 43.2° 1.75
💡 API 
curl -sS "https://devops.majbase.com/rozhen-planner/plan-api?targets=M31,M42,M45,NGC%207000&date=2030-10-15"

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"}.