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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 Wednesday, 11 September 2030 · astronomical night 21:12 → 05:22 (8.16 h) · Moon 100% (full moon) · weather: none — the schedule is astronomy only; overall conditions unknown

M31M31 20:35–20:40: quality 0.1M31 20:40–21:15: quality 0.2M31 21:15–03:45: quality 0.4M31 03:45–05:25: quality 0.5M31 05:25–06:00: quality 0.3M31 06:00–06:35: quality 0.1observe M31 00:15–01:45M42M42 03:50–04:00: quality 0.3M42 04:00–04:20: quality 0.4M42 04:20–04:40: quality 0.5M42 04:40–05:25: quality 0.6M42 05:25–06:00: quality 0.3M42 06:00–06:35: quality 0.1observe M42 04:45–06:00M45M45 00:10–00:20: quality 0.2M45 00:20–00:45: quality 0.3M45 00:45–01:20: quality 0.4M45 01:20–03:15: quality 0.5M45 03:15–05:25: quality 0.6M45 05:25–06:00: quality 0.3M45 06:00–06:35: quality 0.1observe M45 01:45–03:15NGC 7000NGC 7000 20:10–20:40: quality 0.1NGC 7000 20:40–21:15: quality 0.3NGC 7000 21:15–21:30: quality 0.6NGC 7000 21:30–00:40: quality 0.5NGC 7000 00:40–05:15: quality 0.4NGC 7000 05:15–05:25: quality 0.3NGC 7000 05:25–05:30: quality 0.2NGC 7000 05:30–05:50: quality 0.1observe NGC 7000 21:15–22:45V1057 CygV1057 Cyg 20:10–20:40: quality 0.1V1057 Cyg 20:40–21:15: quality 0.3V1057 Cyg 21:15–21:30: quality 0.6V1057 Cyg 21:30–00:35: quality 0.5V1057 Cyg 00:35–05:10: quality 0.4V1057 Cyg 05:10–05:25: quality 0.3V1057 Cyg 05:25–05:30: quality 0.2V1057 Cyg 05:30–05:50: quality 0.1observe V1057 Cyg 22:45–00:15M33M33 21:35–21:55: quality 0.2M33 21:55–22:30: quality 0.3M33 22:30–03:55: quality 0.4M33 03:55–05:25: quality 0.5M33 05:25–06:00: quality 0.3M33 06:00–06:35: quality 0.1observe M33 03:15–04:45scheduleNGC 7000V1057 CygM31M45M33M4220:0022:0000:0002:0004:0006:00

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
19:35–21:15 — nothing worth pointing at — 1.67
21:15–22:45 NGC 7000 1.5 0.53
22:45–00:15 V1057 Cyg 1.5 0.47
00:15–01:45 M31 1.5 0.4
01:45–03:15 M45 1.5 0.51
03:15–04:45 M33 1.5 0.46
04:45–06:00 M42 1.25 0.48
06:00–07:00 — nothing worth pointing at — 1.0

Targets

targetastronomyoverallbest windowhighestMoon sep.scheduled h
M31 Andromeda Galaxy 50 unknown 21:15–05:25 (marginal) 89.6° at 02:40 45.4° 1.5
M42 Great Orion Nebula 17 unknown 04:50–05:25 (good) 42.9° at 07:35 95.2° 1.25
M45 Seven Sisters 47 unknown 04:10–05:25 (good) 72.5° at 05:45 69.8° 1.5
NGC 7000 North America Nebula 56 unknown 21:15–05:25 (marginal) 87.2° at 22:55 53.2° 1.5
V1057 Cyg 56 unknown 21:15–05:25 (marginal) 87.3° at 23:00 53.1° 1.5
M33 Triangulum Pinwheel 43 unknown 22:10–05:25 (marginal) 79.1° at 03:30 44.7° 1.5
💡 API 
curl -sS "https://devops.majbase.com/rozhen-planner/plan-api?targets=M31,M42,M45,NGC%207000&date=2030-09-11"

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"}.