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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, 10 October 2028 · astronomical night 20:19 → 05:56 (9.62 h) · Moon 56% (waning gibbous) · weather: none — the schedule is astronomy only; overall conditions unknown

M31M31 19:20–19:50: quality 0.1M31 19:50–20:20: quality 0.4M31 20:20–21:25: quality 0.9M31 21:25–23:20: quality 1.0M31 23:20–00:05: quality 0.9M31 00:05–03:50: quality 0.8M31 03:50–05:20: quality 0.7M31 05:20–06:00: quality 0.6M31 06:00–06:30: quality 0.3M31 06:30–07:05: quality 0.1observe M31 23:20–01:05observe M31 06:00–06:15M42M42 01:50–02:10: quality 0.3M42 02:10–02:35: quality 0.4M42 02:35–06:00: quality 0.5M42 06:00–06:30: quality 0.3M42 06:30–07:05: quality 0.1observe M42 04:35–06:00M45M45 22:15–22:20: quality 0.4M45 22:20–22:35: quality 0.5M45 22:35–22:50: quality 0.6M45 22:50–23:05: quality 0.7M45 23:05–23:20: quality 0.8M45 23:20–03:55: quality 0.7M45 03:55–06:00: quality 0.6M45 06:00–06:30: quality 0.3M45 06:30–07:05: quality 0.1observe M45 02:50–04:35NGC 7000NGC 7000 19:20–19:50: quality 0.2NGC 7000 19:50–20:20: quality 0.5NGC 7000 20:20–23:20: quality 1.0NGC 7000 23:20–00:45: quality 0.9NGC 7000 00:45–02:10: quality 0.8NGC 7000 02:10–03:00: quality 0.7NGC 7000 03:00–03:15: quality 0.6NGC 7000 03:15–03:35: quality 0.5NGC 7000 03:35–03:55: quality 0.4observe NGC 7000 19:50–21:35V1057 CygV1057 Cyg 19:20–19:50: quality 0.2V1057 Cyg 19:50–20:20: quality 0.5V1057 Cyg 20:20–23:20: quality 1.0V1057 Cyg 23:20–00:45: quality 0.9V1057 Cyg 00:45–02:10: quality 0.8V1057 Cyg 02:10–03:00: quality 0.7V1057 Cyg 03:00–03:15: quality 0.6V1057 Cyg 03:15–03:35: quality 0.5V1057 Cyg 03:35–03:55: quality 0.4observe V1057 Cyg 21:35–23:20M33M33 19:40–19:50: quality 0.1M33 19:50–19:55: quality 0.2M33 19:55–20:20: quality 0.3M33 20:20–20:30: quality 0.7M33 20:30–21:20: quality 0.8M33 21:20–22:40: quality 0.9M33 22:40–23:20: quality 1.0M33 23:20–23:30: quality 0.9M33 23:30–03:40: quality 0.8M33 03:40–05:20: quality 0.7M33 05:20–06:00: quality 0.6M33 06:00–06:30: quality 0.3M33 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 0.86
21:35–23:20 V1057 Cyg 1.75 1.0
23:20–01:05 M31 1.75 0.85
01:05–02:50 M33 1.75 0.79
02:50–04:35 M45 1.75 0.66
04:35–06:00 M42 1.42 0.52
06:00–06:15 M31 0.25 0.3
06:15–07:30 — nothing worth pointing at — 1.25

Targets

targetastronomyoverallbest windowhighestMoon sep.scheduled h
M31 Andromeda Galaxy 100 unknown 20:20–06:00 (good) 89.7° at 00:45 75.6° 2.0
M42 Great Orion Nebula 29 unknown 01:55–06:00 (marginal) 42.9° at 05:35 34.0° 1.42
M45 Seven Sisters 81 unknown 22:45–06:00 (good) 72.5° at 03:50 41.4° 1.75
NGC 7000 North America Nebula 100 unknown 20:20–03:10 (good) 87.2° at 21:00 105.8° 1.75
V1057 Cyg 100 unknown 20:20–03:10 (good) 87.3° at 21:00 105.8° 1.75
M33 Triangulum Pinwheel 100 unknown 20:20–06:00 (good) 79.1° at 01:35 68.9° 1.75
💡 API 
curl -sS "https://devops.majbase.com/rozhen-planner/plan-api?targets=M31,M42,M45,NGC%207000&date=2028-10-10"

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"}.