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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 Monday, 03 October 2039 · astronomical night 20:32 → 05:48 (9.27 h) · Moon 97% (full moon) · weather: none — the schedule is astronomy only; overall conditions unknown

M31M31 19:30–20:00: quality 0.1M31 20:00–20:35: quality 0.3M31 20:35–22:50: quality 0.5M31 22:50–01:10: quality 0.4M31 01:10–03:55: quality 0.3M31 03:55–05:50: quality 0.4M31 05:50–06:25: quality 0.2M31 06:25–06:55: quality 0.1observe M31 23:20–01:00M42M42 02:20–02:45: quality 0.2M42 02:45–03:20: quality 0.3M42 03:20–05:25: quality 0.4M42 05:25–05:50: quality 0.5M42 05:50–06:25: quality 0.2M42 06:25–06:55: quality 0.1observe M42 03:00–04:40M45M45 22:45–23:20: quality 0.2M45 23:20–05:00: quality 0.3M45 05:00–05:50: quality 0.4M45 05:50–06:25: quality 0.2M45 06:25–06:55: quality 0.1observe M45 04:40–05:50NGC 7000NGC 7000 19:30–20:00: quality 0.2NGC 7000 20:00–20:35: quality 0.4NGC 7000 20:35–22:30: quality 0.7NGC 7000 22:30–01:00: quality 0.6NGC 7000 01:00–03:20: quality 0.5NGC 7000 03:20–03:50: quality 0.4NGC 7000 03:50–04:20: quality 0.3NGC 7000 04:20–04:25: quality 0.2observe NGC 7000 20:00–21:40observe NGC 7000 01:30–03:00V1057 CygV1057 Cyg 19:30–20:00: quality 0.2V1057 Cyg 20:00–20:35: quality 0.4V1057 Cyg 20:35–22:30: quality 0.7V1057 Cyg 22:30–01:00: quality 0.6V1057 Cyg 01:00–03:20: quality 0.5V1057 Cyg 03:20–03:50: quality 0.4V1057 Cyg 03:50–04:20: quality 0.3V1057 Cyg 04:20–04:25: quality 0.2observe V1057 Cyg 21:40–23:20M33M33 20:10–20:30: quality 0.1M33 20:30–20:35: quality 0.2M33 20:35–20:45: quality 0.3M33 20:45–00:00: quality 0.4M33 00:00–05:50: quality 0.3M33 05:50–06:25: quality 0.2M33 06:25–06:55: quality 0.1observe M33 01:00–01:30scheduleNGC 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
18:55–20:00 — nothing worth pointing at — 1.08
20:00–21:40 NGC 7000 1.67 0.59
21:40–23:20 V1057 Cyg 1.67 0.65
23:20–01:00 M31 1.67 0.38
01:00–01:30 M33 0.5 0.31
01:30–03:00 NGC 7000 1.5 0.49
03:00–04:40 M42 1.67 0.38
04:40–05:50 M45 1.17 0.36
05:50–07:25 — nothing worth pointing at — 1.58

Targets

targetastronomyoverallbest windowhighestMoon sep.scheduled h
M31 Andromeda Galaxy 50 unknown 20:35–05:50 (marginal) 89.7° at 01:15 37.0° 1.67
M42 Great Orion Nebula 17 unknown 03:00–05:50 (marginal) 42.9° at 06:10 56.5° 1.67
M45 Seven Sisters 22 unknown 03:15–05:50 (marginal) 72.5° at 04:20 31.1° 1.17
NGC 7000 North America Nebula 73 unknown 20:35–23:55 (good) 87.2° at 21:30 73.1° 3.17
V1057 Cyg 73 unknown 20:35–23:55 (good) 87.3° at 21:30 73.1° 1.67
M33 Triangulum Pinwheel 35 unknown 20:35–01:30 (marginal) 79.2° at 02:05 23.3° 0.5
💡 API 
curl -sS "https://devops.majbase.com/rozhen-planner/plan-api?targets=M31,M42,M45,NGC%207000&date=2039-10-03"

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"}.