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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, 15 October 2028 · astronomical night 20:11 → 06:02 (9.84 h) · Moon 7% (waning crescent) · weather: none — the schedule is astronomy only; overall conditions unknown

M31M31 19:10–19:40: quality 0.1M31 19:40–20:15: quality 0.4M31 20:15–21:05: quality 0.9M31 21:05–03:50: quality 1.0M31 03:50–05:15: quality 0.9M31 05:15–06:05: 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 23:20–01:10M42M42 01:30–01:40: quality 0.4M42 01:40–01:55: quality 0.5M42 01:55–02:10: quality 0.6M42 02:10–02:30: quality 0.7M42 02:30–03:40: quality 0.8M42 03:40–06:05: quality 0.9M42 06:05–06:35: quality 0.4M42 06:35–07:10: quality 0.1observe M42 04:50–06:35M45M45 21:55–22:05: quality 0.4M45 22:05–22:15: quality 0.5M45 22:15–22:30: quality 0.6M45 22:30–22:45: quality 0.7M45 22:45–23:30: quality 0.8M45 23:30–00:50: quality 0.9M45 00:50–06:05: quality 1.0M45 06:05–06:35: quality 0.5M45 06:35–07:10: quality 0.1observe M45 03:00–04:50NGC 7000NGC 7000 19:10–19:40: quality 0.2NGC 7000 19:40–20:15: quality 0.5NGC 7000 20:15–00:10: quality 1.0NGC 7000 00:10–01:40: quality 0.9NGC 7000 01:40–02:35: quality 0.8NGC 7000 02:35–02:55: quality 0.7NGC 7000 02:55–03:10: quality 0.6NGC 7000 03:10–03:30: quality 0.5NGC 7000 03:30–03:35: quality 0.4observe NGC 7000 19:40–21:30V1057 CygV1057 Cyg 19:10–19:40: quality 0.2V1057 Cyg 19:40–20:15: quality 0.5V1057 Cyg 20:15–00:10: quality 1.0V1057 Cyg 00:10–01:40: quality 0.9V1057 Cyg 01:40–02:35: quality 0.8V1057 Cyg 02:35–02:55: quality 0.7V1057 Cyg 02:55–03:10: quality 0.6V1057 Cyg 03:10–03:30: quality 0.5V1057 Cyg 03:30–03:35: quality 0.4observe V1057 Cyg 21:30–23:20M33M33 19:20–19:40: quality 0.1M33 19:40–20:05: quality 0.3M33 20:05–20:15: quality 0.4M33 20:15–21:00: quality 0.8M33 21:00–22:20: quality 0.9M33 22:20–04:20: quality 1.0M33 04:20–05:35: quality 0.9M33 05:35–06:05: quality 0.8M33 06:05–06:35: quality 0.4M33 06:35–07:10: quality 0.1observe M33 01:10–03:00scheduleNGC 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
18:35–19:40 — nothing worth pointing at — 1.08
19:40–21:30 NGC 7000 1.83 0.84
21:30–23:20 V1057 Cyg 1.83 1.0
23:20–01:10 M31 1.83 1.0
01:10–03:00 M33 1.83 1.0
03:00–04:50 M45 1.83 1.0
04:50–06:35 M42 1.75 0.75
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) 89.7° at 00:25 135.8° 1.83
M42 Great Orion Nebula 87 unknown 02:05–06:05 (good) 42.9° at 05:15 86.9° 1.75
M45 Seven Sisters 100 unknown 22:25–06:05 (good) 72.5° at 03:30 112.4° 1.83
NGC 7000 North America Nebula 100 unknown 20:15–03:00 (good) 87.2° at 20:40 126.1° 1.83
V1057 Cyg 100 unknown 20:15–03:00 (good) 87.3° at 20:40 126.2° 1.83
M33 Triangulum Pinwheel 100 unknown 20:15–06:05 (good) 79.1° at 01:15 137.1° 1.83
💡 API 
curl -sS "https://devops.majbase.com/rozhen-planner/plan-api?targets=M31,M42,M45,NGC%207000&date=2028-10-15"

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"}.