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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, 02 October 2031 · astronomical night 20:34 → 05:47 (9.22 h) · Moon 95% (waning gibbous) · weather: none — the schedule is astronomy only; overall conditions unknown

M31M31 19:30–20:05: quality 0.1M31 20:05–20:35: quality 0.3M31 20:35–22:40: quality 0.5M31 22:40–00:40: quality 0.4M31 00:40–05:50: quality 0.3M31 05:50–06:20: quality 0.2M31 06:20–06:55: quality 0.1observe M31 23:25–01:05M42M42 02:25–02:55: quality 0.2M42 02:55–03:30: quality 0.3M42 03:30–05:50: quality 0.4M42 05:50–06:20: quality 0.2M42 06:20–06:55: quality 0.1observe M42 03:10–04:50M45M45 22:50–23:20: quality 0.2M45 23:20–05:45: quality 0.3M45 05:45–05:50: quality 0.4M45 05:50–06:20: quality 0.2M45 06:20–06:55: quality 0.1observe M45 04:50–05:50NGC 7000NGC 7000 19:30–19:55: quality 0.2NGC 7000 19:55–20:05: quality 0.1NGC 7000 20:05–20:35: quality 0.4NGC 7000 20:35–22:35: quality 0.7NGC 7000 22:35–01:00: quality 0.6NGC 7000 01:00–03:10: quality 0.5NGC 7000 03:10–03:50: quality 0.4NGC 7000 03:50–04:25: quality 0.3NGC 7000 04:25–04:30: quality 0.2observe NGC 7000 20:05–21:45observe NGC 7000 01:40–03:10V1057 CygV1057 Cyg 19:30–19:55: quality 0.2V1057 Cyg 19:55–20:05: quality 0.1V1057 Cyg 20:05–20:35: quality 0.4V1057 Cyg 20:35–22:35: quality 0.7V1057 Cyg 22:35–01:00: quality 0.6V1057 Cyg 01:00–03:05: quality 0.5V1057 Cyg 03:05–03:50: quality 0.4V1057 Cyg 03:50–04:25: quality 0.3V1057 Cyg 04:25–04:30: quality 0.2observe V1057 Cyg 21:45–23:25M33M33 20:15–20:30: quality 0.1M33 20:30–20:35: quality 0.2M33 20:35–20:45: quality 0.3M33 20:45–00:15: quality 0.4M33 00:15–05:50: quality 0.3M33 05:50–06:20: quality 0.2M33 06:35–06:55: quality 0.1observe M33 01:05–01:40scheduleNGC 7000V1057 CygM31NGC 7000M42M4520:0022:0000:0002:0004:0006:00

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
19:00–20:05 — nothing worth pointing at — 1.08
20:05–21:45 NGC 7000 1.67 0.61
21:45–23:25 V1057 Cyg 1.67 0.65
23:25–01:05 M31 1.67 0.37
01:05–01:40 M33 0.58 0.31
01:40–03:10 NGC 7000 1.5 0.48
03:10–04:50 M42 1.67 0.36
04:50–05:50 M45 1.0 0.33
05:50–07:20 — nothing worth pointing at — 1.5

Targets

targetastronomyoverallbest windowhighestMoon sep.scheduled h
M31 Andromeda Galaxy 47 unknown 20:35–05:50 (marginal) 89.7° at 01:20 33.2° 1.67
M42 Great Orion Nebula 15 unknown 03:10–05:50 (marginal) 42.9° at 06:10 53.6° 1.67
M45 Seven Sisters 19 unknown 04:15–05:50 (marginal) 72.5° at 04:25 23.4° 1.0
NGC 7000 North America Nebula 73 unknown 20:35–00:00 (good) 87.2° at 21:35 72.0° 3.17
V1057 Cyg 73 unknown 20:35–23:55 (good) 87.3° at 21:35 71.9° 1.67
M33 Triangulum Pinwheel 35 unknown 20:35–01:40 (marginal) 79.1° at 02:10 18.5° 0.58
💡 API 
curl -sS "https://devops.majbase.com/rozhen-planner/plan-api?targets=M31,M42,M45,NGC%207000&date=2031-10-02"

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"}.