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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 Monday, 09 October 2028 · astronomical night 20:21 → 05:55 (9.58 h) · Moon 66% (waning gibbous) · weather: none — the schedule is astronomy only; overall conditions unknown

M31M31 19:20–19:50: quality 0.1M31 19:50–20:25: quality 0.4M31 20:25–21:30: quality 0.9M31 21:30–22:20: quality 1.0M31 22:20–00:25: quality 0.8M31 00:25–03:45: quality 0.7M31 03:45–05:35: quality 0.6M31 05:35–06:00: quality 0.5M31 06:00–06:30: quality 0.3M31 06:30–07:05: quality 0.1observe M31 23:20–01:05M42M42 01:55–02:00: quality 0.2M42 02:00–02:30: quality 0.3M42 02:30–06:00: quality 0.4M42 06:00–06:30: quality 0.2M42 06:30–07:05: quality 0.1observe M42 04:35–06:00M45M45 22:20–22:30: quality 0.3M45 22:30–22:50: quality 0.4M45 22:50–23:15: quality 0.5M45 23:15–02:35: quality 0.6M45 02:35–06:00: quality 0.5M45 06:00–06:30: quality 0.2M45 06:30–07:05: quality 0.1observe M45 02:50–04:35NGC 7000NGC 7000 19:20–19:50: quality 0.2NGC 7000 19:50–20:25: quality 0.5NGC 7000 20:25–22:20: quality 1.0NGC 7000 22:20–00:05: quality 0.9NGC 7000 00:05–01:25: quality 0.8NGC 7000 01:25–02:55: quality 0.7NGC 7000 02:55–03:15: quality 0.6NGC 7000 03:15–03:35: quality 0.5NGC 7000 03:35–03:55: quality 0.4NGC 7000 03:55–04:00: quality 0.3observe NGC 7000 19:50–21:35V1057 CygV1057 Cyg 19:20–19:50: quality 0.2V1057 Cyg 19:50–20:25: quality 0.5V1057 Cyg 20:25–22:20: quality 1.0V1057 Cyg 22:20–00:05: quality 0.9V1057 Cyg 00:05–01:25: quality 0.8V1057 Cyg 01:25–02:55: quality 0.7V1057 Cyg 02:55–03:15: quality 0.6V1057 Cyg 03:15–03:35: quality 0.5V1057 Cyg 03:35–03:55: quality 0.4V1057 Cyg 03:55–04:00: quality 0.3observe V1057 Cyg 21:35–23:20M33M33 19:45–19:50: quality 0.1M33 19:50–20:00: quality 0.2M33 20:00–20:25: quality 0.3M33 20:25–20:35: quality 0.7M33 20:35–21:20: quality 0.8M33 21:20–22:20: quality 0.9M33 22:20–22:55: quality 0.7M33 22:55–23:40: quality 0.8M33 23:40–02:45: quality 0.7M33 02:45–05:15: quality 0.6M33 05:15–06:00: quality 0.5M33 06:00–06:20: quality 0.3M33 06:20–06:30: quality 0.2M33 06:30–07:05: quality 0.1observe M33 01:05–02:50scheduleNGC 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
18:45–19:50 — nothing worth pointing at — 1.08
19:50–21:35 NGC 7000 1.75 0.83
21:35–23:20 V1057 Cyg 1.75 0.94
23:20–01:05 M31 1.75 0.76
01:05–02:50 M33 1.75 0.67
02:50–04:35 M45 1.75 0.52
04:35–06:00 M42 1.42 0.43
06:00–07:30 — nothing worth pointing at — 1.5

Targets

targetastronomyoverallbest windowhighestMoon sep.scheduled h
M31 Andromeda Galaxy 100 unknown 20:25–04:35 (good) 89.7° at 00:50 64.3° 1.75
M42 Great Orion Nebula 20 unknown 02:15–06:00 (marginal) 42.9° at 05:40 30.8° 1.42
M45 Seven Sisters 57 unknown 22:20–06:00 (marginal) 72.5° at 03:55 28.2° 1.75
NGC 7000 North America Nebula 100 unknown 20:25–03:05 (good) 87.2° at 21:05 98.3° 1.75
V1057 Cyg 100 unknown 20:25–03:05 (good) 87.3° at 21:05 98.3° 1.75
M33 Triangulum Pinwheel 92 unknown 20:25–04:25 (good) 79.1° at 01:40 56.3° 1.75
💡 API 
curl -sS "https://devops.majbase.com/rozhen-planner/plan-api?targets=M31,M42,M45,NGC%207000&date=2028-10-09"

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"}.