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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 Thursday, 10 October 2030 · astronomical night 20:20 → 05:56 (9.6 h) · Moon 100% (full moon) · weather: none — the schedule is astronomy only; overall conditions unknown

M31M31 19:20–19:50: quality 0.1M31 19:50–20:25: quality 0.2M31 20:25–22:05: quality 0.4M31 22:05–03:20: quality 0.3M31 03:20–06:00: quality 0.4M31 06:00–06:30: quality 0.2M31 06:30–07:00: quality 0.1observe M31 01:50–02:55M42M42 01:55–02:00: quality 0.2M42 02:00–02:25: quality 0.3M42 02:25–02:50: quality 0.4M42 02:50–04:20: quality 0.5M42 04:20–06:00: quality 0.6M42 06:00–06:30: quality 0.3M42 06:30–07:05: quality 0.1observe M42 02:55–04:40observe M42 06:00–06:30M45M45 22:15–22:45: quality 0.2M45 22:45–00:35: quality 0.3M45 00:35–03:30: quality 0.4M45 03:30–05:30: quality 0.5M45 05:30–06:00: quality 0.6M45 06:00–06:30: quality 0.3M45 06:30–07:05: quality 0.1observe M45 23:45–01:50NGC 7000NGC 7000 19:20–19:50: quality 0.1NGC 7000 19:50–20:25: quality 0.3NGC 7000 20:25–21:00: quality 0.6NGC 7000 21:00–00:10: quality 0.5NGC 7000 00:10–03:05: quality 0.4NGC 7000 03:05–03:45: quality 0.3NGC 7000 03:45–04:00: quality 0.2observe NGC 7000 19:50–20:00observe NGC 7000 20:25–22:00V1057 CygV1057 Cyg 19:20–19:50: quality 0.1V1057 Cyg 19:50–20:25: quality 0.3V1057 Cyg 20:25–21:00: quality 0.6V1057 Cyg 21:00–00:10: quality 0.5V1057 Cyg 00:10–03:05: quality 0.4V1057 Cyg 03:05–03:45: quality 0.3V1057 Cyg 03:45–04:00: quality 0.2observe V1057 Cyg 22:00–23:45M33M33 19:50–20:25: quality 0.1M33 20:25–03:40: quality 0.3M33 03:40–06:00: quality 0.4M33 06:00–06:30: quality 0.2M33 06:30–07:05: quality 0.1observe M33 04:40–06:00scheduleNGC 7000V1057 CygM45M31M42M3320:0022:0000:0002:0004:0006:00

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
19:50–20:00 NGC 7000 0.17 0.3
20:00–20:25 — nothing worth pointing at — 0.42
20:25–22:00 NGC 7000 1.58 0.54
22:00–23:45 V1057 Cyg 1.75 0.48
23:45–01:50 M45 2.08 0.36
01:50–02:55 M31 1.08 0.32
02:55–04:40 M42 1.75 0.52
04:40–06:00 M33 1.33 0.41
06:00–06:30 M42 0.5 0.32
06:30–07:30 — nothing worth pointing at — 1.0

Targets

targetastronomyoverallbest windowhighestMoon sep.scheduled h
M31 Andromeda Galaxy 38 unknown 01:50–06:00 (marginal) 89.5° at 00:45 32.8° 1.08
M42 Great Orion Nebula 35 unknown 05:20–06:00 (good) 42.9° at 05:40 76.0° 2.25
M45 Seven Sisters 48 unknown 23:05–06:00 (marginal) 72.5° at 03:50 48.1° 2.08
NGC 7000 North America Nebula 51 unknown 20:25–03:25 (marginal) 87.2° at 21:05 58.9° 1.75
V1057 Cyg 51 unknown 20:25–03:25 (marginal) 87.3° at 21:05 58.8° 1.75
M33 Triangulum Pinwheel 35 unknown 02:25–06:00 (marginal) 79.1° at 01:40 26.0° 1.33
💡 API 
curl -sS "https://devops.majbase.com/rozhen-planner/plan-api?targets=M31,M42,M45,NGC%207000&date=2030-10-10"

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"}.