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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 Friday, 01 August 2031 · astronomical night 22:32 → 04:22 (5.84 h) · Moon 98% (full moon) · weather: none — the schedule is astronomy only; overall conditions unknown

M31M31 22:45–23:00: quality 0.3M31 23:00–23:20: quality 0.4M31 23:20–23:45: quality 0.5M31 23:45–01:05: quality 0.6M31 01:05–02:40: quality 0.7M31 02:40–04:25: quality 0.8M31 04:25–05:10: quality 0.4M31 05:10–05:20: quality 0.1M31 05:20–05:45: quality 0.2observe M31 23:55–01:15M42M45M45 02:55–03:10: quality 0.4M45 03:10–03:25: quality 0.5M45 03:25–03:40: quality 0.6M45 03:40–04:10: quality 0.7M45 04:10–04:25: quality 0.8M45 04:25–05:10: quality 0.4M45 05:10–05:45: quality 0.1observe M45 03:55–05:10NGC 7000NGC 7000 21:15–21:50: quality 0.1NGC 7000 21:50–22:35: quality 0.3NGC 7000 22:35–03:30: quality 0.6NGC 7000 03:30–04:25: quality 0.7NGC 7000 04:25–05:10: quality 0.3NGC 7000 05:10–05:45: quality 0.1observe NGC 7000 22:35–23:55V1057 CygV1057 Cyg 21:15–21:50: quality 0.1V1057 Cyg 21:50–22:35: quality 0.3V1057 Cyg 22:35–03:30: quality 0.6V1057 Cyg 03:30–04:25: quality 0.7V1057 Cyg 04:25–05:10: quality 0.3V1057 Cyg 05:10–05:45: quality 0.1observe V1057 Cyg 02:35–03:55M33M33 00:20–00:25: quality 0.3M33 00:25–00:45: quality 0.4M33 00:45–01:05: quality 0.5M33 01:05–01:45: quality 0.6M33 01:45–03:10: quality 0.7M33 03:10–04:25: quality 0.8M33 04:25–05:10: quality 0.4M33 05:10–05:20: quality 0.1M33 05:20–05:45: quality 0.2observe M33 01:15–02:35scheduleNGC 7000M31M33V1057 CygM4522:0000:0002:0004:0006:00

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
20:35–22:35 — nothing worth pointing at — 2.0
22:35–23:55 NGC 7000 1.33 0.6
23:55–01:15 M31 1.33 0.62
01:15–02:35 M33 1.33 0.66
02:35–03:55 V1057 Cyg 1.33 0.64
03:55–05:10 M45 1.25 0.54
05:10–06:20 — nothing worth pointing at — 1.17

Targets

targetastronomyoverallbest windowhighestMoon sep.scheduled h
M31 Andromeda Galaxy 79 unknown 00:10–04:25 (good) 89.6° at 05:25 91.5° 1.33
M42 Great Orion Nebula 0 unknown — 42.9° at 10:15 142.3° 0.0
M45 Seven Sisters 25 unknown 03:30–04:25 (good) 72.5° at 08:25 125.9° 1.25
NGC 7000 North America Nebula 68 unknown 01:30–04:25 (good) 87.2° at 01:40 64.3° 1.33
V1057 Cyg 68 unknown 01:35–04:25 (good) 87.3° at 01:40 64.2° 1.33
M33 Triangulum Pinwheel 64 unknown 01:10–04:25 (good) 79.1° at 06:15 98.0° 1.33

Left out

💡 API 
curl -sS "https://devops.majbase.com/rozhen-planner/plan-api?targets=M31,M42,M45,NGC%207000&date=2031-08-01"

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"}.