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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, 28 March 2031 · astronomical night 20:16 → 04:35 (8.31 h) · Moon 31% (waxing crescent) · weather: none — the schedule is astronomy only; overall conditions unknown

M31M31 19:10–19:25: quality 0.1M42M42 19:10–19:45: quality 0.1M42 19:45–20:20: quality 0.3M42 20:20–20:40: quality 0.6M42 20:40–21:00: quality 0.5M42 21:00–21:20: quality 0.4M42 21:20–21:25: quality 0.3observe M42 21:00–21:25M45M45 19:10–19:45: quality 0.1M45 19:45–20:20: quality 0.3M45 20:20–20:45: quality 0.6M45 20:45–21:05: quality 0.5M45 21:05–21:20: quality 0.4M45 21:20–21:25: quality 0.3observe M45 19:45–21:00NGC 7000NGC 7000 02:05–02:15: quality 0.4NGC 7000 02:15–02:30: quality 0.5NGC 7000 02:30–02:50: quality 0.6NGC 7000 02:50–03:05: quality 0.7NGC 7000 03:05–04:00: quality 0.8NGC 7000 04:00–04:40: quality 0.9NGC 7000 04:40–04:45: quality 0.4NGC 7000 04:45–05:10: quality 0.5NGC 7000 05:10–05:45: quality 0.1observe NGC 7000 02:05–03:20V1057 CygV1057 Cyg 02:05–02:15: quality 0.4V1057 Cyg 02:15–02:30: quality 0.5V1057 Cyg 02:30–02:50: quality 0.6V1057 Cyg 02:50–03:05: quality 0.7V1057 Cyg 03:05–04:00: quality 0.8V1057 Cyg 04:00–04:40: quality 0.9V1057 Cyg 04:40–04:45: quality 0.4V1057 Cyg 04:45–05:10: quality 0.5V1057 Cyg 05:10–05:45: quality 0.1observe V1057 Cyg 03:20–05:10M33M33 19:10–19:35: quality 0.1scheduleM45NGC 7000V1057 Cyg20:0022:0000:0002:0004:0006:00

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
18:40–19:45 — nothing worth pointing at — 1.08
19:45–21:00 M45 1.25 0.46
21:00–21:25 M42 0.42 0.39
21:25–02:05 — nothing worth pointing at — 4.67
02:05–03:20 NGC 7000 1.25 0.62
03:20–05:10 V1057 Cyg 1.83 0.74
05:10–06:10 — nothing worth pointing at — 1.0

Targets

targetastronomyoverallbest windowhighestMoon sep.scheduled h
M31 Andromeda Galaxy 0 unknown — 89.5° at 12:45 56.6° 0.0
M42 Great Orion Nebula 12 unknown 20:20–20:30 (good) 42.9° at 17:35 28.2° 0.42
M45 Seven Sisters 13 unknown 20:20–20:35 (good) 72.5° at 15:45 16.6° 1.25
NGC 7000 North America Nebula 49 unknown 02:40–04:40 (good) 87.2° at 08:55 94.4° 1.25
V1057 Cyg 49 unknown 02:40–04:40 (good) 87.3° at 08:55 94.4° 1.83
M33 Triangulum Pinwheel 0 unknown — 79.1° at 13:35 46.3° 0.0

Left out

💡 API 
curl -sS "https://devops.majbase.com/rozhen-planner/plan-api?targets=M31,M42,M45,NGC%207000&date=2031-03-28"

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"}.