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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, 24 September 2037 · astronomical night 20:47 → 05:38 (8.85 h) · Moon 100% (full moon) · weather: none — the schedule is astronomy only; overall conditions unknown

M31M31 19:45–20:15: quality 0.1M31 20:15–20:50: quality 0.2M31 20:50–22:55: quality 0.5M31 22:55–04:20: quality 0.4M31 04:20–05:40: quality 0.5M31 05:40–06:15: quality 0.2M31 06:15–06:45: quality 0.1observe M31 23:35–01:15M42M42 02:55–03:00: quality 0.2M42 03:00–03:25: quality 0.3M42 03:25–03:50: quality 0.4M42 03:50–05:00: quality 0.5M42 05:00–05:40: quality 0.6M42 05:40–06:15: quality 0.3M42 06:15–06:45: quality 0.1observe M42 04:35–05:40observe M42 05:55–06:15M45M45 23:20–23:35: quality 0.2M45 23:35–00:05: quality 0.3M45 00:05–02:35: quality 0.4M45 02:35–05:20: quality 0.5M45 05:20–05:40: quality 0.6M45 05:40–06:15: quality 0.3M45 06:15–06:45: quality 0.1observe M45 01:15–02:55NGC 7000NGC 7000 19:45–20:15: quality 0.1NGC 7000 20:15–20:20: quality 0.4NGC 7000 20:20–20:50: quality 0.3NGC 7000 20:50–21:20: quality 0.7NGC 7000 21:20–00:10: quality 0.6NGC 7000 00:10–03:55: quality 0.5NGC 7000 03:55–04:25: quality 0.4NGC 7000 04:25–04:55: quality 0.3NGC 7000 04:55–05:00: quality 0.2observe NGC 7000 20:15–21:55V1057 CygV1057 Cyg 19:45–20:15: quality 0.1V1057 Cyg 20:15–20:20: quality 0.4V1057 Cyg 20:20–20:50: quality 0.3V1057 Cyg 20:50–21:20: quality 0.7V1057 Cyg 21:20–00:10: quality 0.6V1057 Cyg 00:10–03:50: quality 0.5V1057 Cyg 03:50–04:25: quality 0.4V1057 Cyg 04:25–04:55: quality 0.3V1057 Cyg 04:55–05:00: quality 0.2observe V1057 Cyg 21:55–23:35M33M33 20:45–20:50: quality 0.1M33 20:50–20:55: quality 0.2M33 20:55–21:25: quality 0.3M33 21:25–01:05: quality 0.4M33 01:05–02:25: quality 0.3M33 02:25–05:25: quality 0.4M33 05:25–05:40: quality 0.5M33 05:40–06:15: quality 0.2M33 06:15–06:45: quality 0.1observe M33 02:55–04:35scheduleNGC 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
19:10–20:15 — nothing worth pointing at — 1.08
20:15–21:55 NGC 7000 1.67 0.54
21:55–23:35 V1057 Cyg 1.67 0.59
23:35–01:15 M31 1.67 0.41
01:15–02:55 M45 1.67 0.43
02:55–04:35 M33 1.67 0.39
04:35–05:40 M42 1.08 0.56
05:40–05:55 — nothing worth pointing at — 0.25
05:55–06:15 M42 0.33 0.3
06:15–07:15 — nothing worth pointing at — 1.0

Targets

targetastronomyoverallbest windowhighestMoon sep.scheduled h
M31 Andromeda Galaxy 48 unknown 20:50–05:40 (marginal) 89.8° at 01:50 42.9° 1.67
M42 Great Orion Nebula 22 unknown 03:10–05:40 (marginal) 42.9° at 06:40 75.4° 1.42
M45 Seven Sisters 42 unknown 23:50–05:40 (marginal) 72.5° at 04:55 53.4° 1.67
NGC 7000 North America Nebula 67 unknown 20:50–22:30 (good) 87.2° at 22:05 66.1° 1.67
V1057 Cyg 67 unknown 20:50–22:30 (good) 87.3° at 22:05 66.1° 1.67
M33 Triangulum Pinwheel 39 unknown 21:10–05:40 (marginal) 79.2° at 02:40 35.3° 1.67
💡 API 
curl -sS "https://devops.majbase.com/rozhen-planner/plan-api?targets=M31,M42,M45,NGC%207000&date=2037-09-24"

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"}.