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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 Tuesday, 05 August 2031 · astronomical night 22:25 → 04:29 (6.06 h) · Moon 88% (waning gibbous) · weather: none — the schedule is astronomy only; overall conditions unknown

M31M31 22:30–23:00: quality 0.3M31 23:00–23:30: quality 0.4M31 23:30–04:30: quality 0.5M31 04:30–05:15: quality 0.2M31 05:15–05:50: quality 0.1observe M31 00:35–02:00M42M45M45 02:40–03:05: quality 0.3M45 03:05–03:30: quality 0.4M45 03:30–04:30: quality 0.5M45 04:30–05:15: quality 0.3M45 05:15–05:50: quality 0.1observe M45 03:25–04:30NGC 7000NGC 7000 21:10–21:45: quality 0.1NGC 7000 21:45–21:50: quality 0.5NGC 7000 21:50–22:30: quality 0.3NGC 7000 22:30–23:10: quality 0.7NGC 7000 23:10–01:35: quality 0.6NGC 7000 01:35–04:30: quality 0.5NGC 7000 04:30–05:15: quality 0.2NGC 7000 05:15–05:50: quality 0.1observe NGC 7000 21:45–23:10V1057 CygV1057 Cyg 21:10–21:45: quality 0.1V1057 Cyg 21:45–21:50: quality 0.5V1057 Cyg 21:50–22:30: quality 0.3V1057 Cyg 22:30–23:10: quality 0.7V1057 Cyg 23:10–01:35: quality 0.6V1057 Cyg 01:35–04:30: quality 0.5V1057 Cyg 04:30–05:15: quality 0.2V1057 Cyg 05:15–05:50: quality 0.1observe V1057 Cyg 23:10–00:35M33M33 00:05–00:10: quality 0.2M33 00:10–00:40: quality 0.3M33 00:40–04:30: quality 0.4M33 04:30–05:15: quality 0.2M33 05:15–05:50: quality 0.1observe M33 02:00–03:25scheduleNGC 7000V1057 CygM31M33M4522:0000:0002:0004:0006:00

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
20:30–21:45 — nothing worth pointing at — 1.25
21:45–23:10 NGC 7000 1.42 0.5
23:10–00:35 V1057 Cyg 1.42 0.62
00:35–02:00 M31 1.42 0.46
02:00–03:25 M33 1.42 0.42
03:25–04:30 M45 1.08 0.48
04:30–06:20 — nothing worth pointing at — 1.83

Targets

targetastronomyoverallbest windowhighestMoon sep.scheduled h
M31 Andromeda Galaxy 34 unknown 22:45–04:30 (marginal) 89.5° at 05:10 43.5° 1.42
M42 Great Orion Nebula 0 unknown — 42.9° at 10:00 92.1° 0.0
M45 Seven Sisters 13 unknown 02:55–04:30 (marginal) 72.5° at 08:10 66.6° 1.08
NGC 7000 North America Nebula 67 unknown 22:30–00:15 (good) 87.2° at 01:25 54.1° 1.42
V1057 Cyg 67 unknown 22:30–00:15 (good) 87.3° at 01:25 54.1° 1.42
M33 Triangulum Pinwheel 22 unknown 00:25–04:30 (marginal) 79.1° at 06:00 42.0° 1.42

Left out

💡 API 
curl -sS "https://devops.majbase.com/rozhen-planner/plan-api?targets=M31,M42,M45,NGC%207000&date=2031-08-05"

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"}.