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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, 10 December 2030 · astronomical night 18:30 → 05:57 (11.45 h) · Moon 99% (full moon) · weather: none — the schedule is astronomy only; overall conditions unknown

M31M31 17:25–17:30: quality 0.2M31 17:30–18:00: quality 0.1M31 18:00–18:20: quality 0.4M31 18:20–18:35: quality 0.3M31 18:35–19:25: quality 0.7M31 19:25–21:50: quality 0.6M31 21:50–23:55: quality 0.5M31 23:55–01:40: quality 0.4M31 01:40–02:10: quality 0.3M31 02:10–02:30: quality 0.2observe M31 21:20–23:00M42M42 20:55–21:55: quality 0.2M42 21:55–22:05: quality 0.3M42 22:05–04:20: quality 0.2M42 04:20–04:30: quality 0.1M45M45 17:25–17:30: quality 0.1M45 17:40–18:00: quality 0.1M45 18:00–18:35: quality 0.2M45 18:35–21:20: quality 0.4M45 21:20–23:45: quality 0.3M45 23:45–04:20: quality 0.2M45 04:20–04:30: quality 0.1NGC 7000NGC 7000 17:25–17:30: quality 0.2NGC 7000 17:30–18:00: quality 0.1NGC 7000 18:00–18:35: quality 0.4NGC 7000 18:35–19:50: quality 0.8NGC 7000 19:50–21:10: quality 0.7NGC 7000 21:10–22:00: quality 0.6NGC 7000 22:00–22:25: quality 0.5NGC 7000 22:25–22:45: quality 0.4NGC 7000 22:45–23:00: quality 0.3observe NGC 7000 19:40–21:20V1057 CygV1057 Cyg 17:25–17:30: quality 0.2V1057 Cyg 17:30–18:00: quality 0.1V1057 Cyg 18:00–18:35: quality 0.4V1057 Cyg 18:35–19:50: quality 0.8V1057 Cyg 19:50–21:10: quality 0.7V1057 Cyg 21:10–22:00: quality 0.6V1057 Cyg 22:00–22:25: quality 0.5V1057 Cyg 22:25–22:45: quality 0.4V1057 Cyg 22:45–23:00: quality 0.3observe V1057 Cyg 18:00–19:40M33M33 17:25–18:00: quality 0.1M33 18:00–18:35: quality 0.3M33 18:35–18:40: quality 0.7M33 18:40–20:40: quality 0.6M33 20:40–23:10: quality 0.5M33 23:10–01:35: quality 0.4M33 01:35–02:15: quality 0.3M33 02:15–02:40: quality 0.2observe M33 23:00–02:00scheduleV1057 CygNGC 7000M31M3318:0020:0022:0000:0002:0004:0006:00

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
16:50–18:00 — nothing worth pointing at — 1.17
18:00–19:40 V1057 Cyg 1.67 0.67
19:40–21:20 NGC 7000 1.67 0.7
21:20–23:00 M31 1.67 0.54
23:00–02:00 M33 3.0 0.39
02:00–07:40 — nothing worth pointing at — 5.67

Targets

targetastronomyoverallbest windowhighestMoon sep.scheduled h
M31 Andromeda Galaxy 69 unknown 18:35–20:35 (good) 89.5° at 19:45 67.8° 1.67
M42 Great Orion Nebula 10 unknown — 42.9° at 00:40 27.4° 0.0
M45 Seven Sisters 34 unknown 18:35–22:20 (marginal) 72.5° at 22:50 30.3° 0.0
NGC 7000 North America Nebula 66 unknown 18:35–21:50 (good) 87.2° at 16:05 102.3° 1.67
V1057 Cyg 66 unknown 18:35–21:50 (good) 87.3° at 16:05 102.4° 1.67
M33 Triangulum Pinwheel 65 unknown 18:35–19:35 (good) 79.1° at 20:40 59.2° 3.0

Left out


💡 API
curl -sS "https://devops.majbase.com/rozhen-planner/plan-api?targets=M31,M42,M45,NGC%207000&date=2030-12-10"

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"}.