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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, 07 April 2031 · astronomical night 21:30 → 05:15 (7.76 h) · Moon 100% (full moon) · weather: none — the schedule is astronomy only; overall conditions unknown

M31M42M42 20:25–20:55: quality 0.1M42 20:55–21:20: quality 0.3M42 21:20–21:35: quality 0.2M42 21:35–21:45: quality 0.4M45M45 20:25–20:55: quality 0.1M45 20:55–21:25: quality 0.3M45 21:25–21:35: quality 0.2M45 21:35–21:45: quality 0.4observe M45 20:55–21:10observe M45 21:35–21:45NGC 7000NGC 7000 02:25–02:50: quality 0.4NGC 7000 02:50–03:05: quality 0.5NGC 7000 03:05–03:25: quality 0.6NGC 7000 03:25–04:30: quality 0.7NGC 7000 04:30–05:20: quality 0.8NGC 7000 05:20–05:55: quality 0.4NGC 7000 05:55–06:25: quality 0.1observe NGC 7000 02:25–03:25V1057 CygV1057 Cyg 02:25–02:30: quality 0.3V1057 Cyg 02:30–02:50: quality 0.4V1057 Cyg 02:50–03:10: quality 0.5V1057 Cyg 03:10–03:25: quality 0.6V1057 Cyg 03:25–04:30: quality 0.7V1057 Cyg 04:30–05:20: quality 0.8V1057 Cyg 05:20–05:55: quality 0.4V1057 Cyg 05:55–06:25: quality 0.1observe V1057 Cyg 03:25–05:55M33scheduleNGC 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
19:50–20:55 — nothing worth pointing at — 1.08
20:55–21:10 M45 0.25 0.32
21:10–21:35 — nothing worth pointing at — 0.42
21:35–21:45 M45 0.17 0.39
21:45–02:25 — nothing worth pointing at — 4.67
02:25–03:25 NGC 7000 1.0 0.49
03:25–05:55 V1057 Cyg 2.5 0.67
05:55–06:55 — nothing worth pointing at — 1.0

Targets

targetastronomyoverallbest windowhighestMoon sep.scheduled h
M31 Andromeda Galaxy 0 unknown — 89.6° at 13:05 149.1° 0.0
M42 Great Orion Nebula 3 unknown 21:35–21:45 (marginal) 42.9° at 17:55 112.3° 0.0
M45 Seven Sisters 3 unknown 20:55–21:10 (marginal) 72.5° at 16:05 140.9° 0.42
NGC 7000 North America Nebula 45 unknown 03:15–05:20 (good) 87.2° at 09:15 116.8° 1.0
V1057 Cyg 45 unknown 03:15–05:20 (good) 87.3° at 09:15 116.8° 2.5
M33 Triangulum Pinwheel 0 unknown — 79.1° at 13:55 159.6° 0.0

Left out


💡 API
curl -sS "https://devops.majbase.com/rozhen-planner/plan-api?targets=M31,M42,M45,NGC%207000&date=2031-04-07"

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"}.