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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, 09 June 2031 · astronomical night 23:03 → 03:37 (4.56 h) · Moon 74% (waning gibbous) · weather: none — the schedule is astronomy only; overall conditions unknown

M31M31 02:15–02:30: quality 0.3M31 02:30–02:50: quality 0.4M31 02:50–03:15: quality 0.5M31 03:15–03:40: quality 0.6M31 03:40–04:30: quality 0.3M31 04:30–05:15: quality 0.1observe M31 02:45–03:40observe M31 04:20–04:30M42M45NGC 7000NGC 7000 22:20–22:35: quality 0.2NGC 7000 22:35–23:05: quality 0.3NGC 7000 23:05–23:20: quality 0.7NGC 7000 23:20–00:15: quality 0.8NGC 7000 00:15–03:40: quality 0.7NGC 7000 03:40–04:30: quality 0.3NGC 7000 04:30–05:15: quality 0.1observe NGC 7000 22:55–00:50observe NGC 7000 03:40–04:20V1057 CygV1057 Cyg 22:20–22:35: quality 0.2V1057 Cyg 22:35–23:05: quality 0.3V1057 Cyg 23:05–23:20: quality 0.7V1057 Cyg 23:20–00:15: quality 0.8V1057 Cyg 00:15–03:40: quality 0.7V1057 Cyg 03:40–04:30: quality 0.3V1057 Cyg 04:30–05:15: quality 0.1observe V1057 Cyg 00:50–02:45M33M33 03:45–03:50: quality 0.1M33 03:50–04:30: quality 0.2M33 04:30–05:15: quality 0.1scheduleNGC 7000V1057 CygM31NGC 700022:0000:0002:0004:00

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
20:50–22:55 — nothing worth pointing at — 2.08
22:55–00:50 NGC 7000 1.92 0.71
00:50–02:45 V1057 Cyg 1.92 0.67
02:45–03:40 M31 0.92 0.52
03:40–04:20 NGC 7000 0.67 0.32
04:20–04:30 M31 0.17 0.3
04:30–05:50 — nothing worth pointing at — 1.33

Targets

targetastronomyoverallbest windowhighestMoon sep.scheduled h
M31 Andromeda Galaxy 14 unknown 02:15–03:40 (marginal) 89.6° at 08:50 68.1° 1.08
M42 Great Orion Nebula 0 unknown — 42.9° at 13:45 120.7° 0.0
M45 Seven Sisters 0 unknown — 72.5° at 11:55 98.6° 0.0
NGC 7000 North America Nebula 80 unknown 23:05–03:40 (good) 87.2° at 05:10 54.3° 2.58
V1057 Cyg 80 unknown 23:05–03:40 (good) 87.3° at 05:10 54.2° 1.92
M33 Triangulum Pinwheel 1 unknown — 79.1° at 09:45 71.8° 0.0

Left out


💡 API
curl -sS "https://devops.majbase.com/rozhen-planner/plan-api?targets=M31,M42,M45,NGC%207000&date=2031-06-09"

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"}.