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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, 18 January 2030 · astronomical night 18:56 → 06:06 (11.16 h) · Moon 99% (full moon) · weather: none — the schedule is astronomy only; overall conditions unknown

M31M31 17:50–18:25: quality 0.1M31 18:25–19:00: quality 0.4M31 19:00–20:15: quality 0.7M31 20:15–21:45: quality 0.6M31 21:45–23:00: quality 0.5M31 23:00–23:25: quality 0.4M31 23:25–23:55: quality 0.3observe M31 20:25–21:35M42M42 18:25–19:00: quality 0.1M42 19:00–23:10: quality 0.3M42 23:10–01:40: quality 0.2M42 01:40–01:55: quality 0.1M45M45 17:50–18:25: quality 0.1M45 18:25–19:00: quality 0.3M45 19:00–20:40: quality 0.5M45 20:40–23:20: quality 0.4M45 23:20–01:20: quality 0.3M45 01:20–01:55: quality 0.2observe M45 22:45–01:05NGC 7000NGC 7000 17:50–18:25: quality 0.1NGC 7000 18:25–18:55: quality 0.4NGC 7000 18:55–19:00: quality 0.3NGC 7000 19:00–19:20: quality 0.7NGC 7000 19:20–19:40: quality 0.6NGC 7000 19:40–20:00: quality 0.5NGC 7000 20:00–20:20: quality 0.4NGC 7000 20:20–20:25: quality 0.3NGC 7000 06:35–06:40: quality 0.2NGC 7000 06:40–07:15: quality 0.1observe NGC 7000 18:25–19:35V1057 CygV1057 Cyg 17:50–18:25: quality 0.1V1057 Cyg 18:25–18:55: quality 0.4V1057 Cyg 18:55–19:00: quality 0.3V1057 Cyg 19:00–19:20: quality 0.7V1057 Cyg 19:20–19:40: quality 0.6V1057 Cyg 19:40–20:00: quality 0.5V1057 Cyg 20:00–20:20: quality 0.4V1057 Cyg 20:20–20:25: quality 0.3V1057 Cyg 06:35–06:40: quality 0.2V1057 Cyg 06:40–07:15: quality 0.1observe V1057 Cyg 19:35–20:25M33M33 17:50–18:25: quality 0.1M33 18:25–19:00: quality 0.3M33 19:00–19:40: quality 0.7M33 19:40–21:25: quality 0.6M33 21:25–23:10: quality 0.5M33 23:10–23:35: quality 0.4M33 23:35–00:00: quality 0.3M33 00:00–00:05: quality 0.2observe M33 21:35–22:45scheduleNGC 7000V1057 CygM31M33M4518:0020:0022:0000:0002:0004:0006:00

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
17:15–18:25 — nothing worth pointing at — 1.17
18:25–19:35 NGC 7000 1.17 0.5
19:35–20:25 V1057 Cyg 0.83 0.45
20:25–21:35 M31 1.17 0.6
21:35–22:45 M33 1.17 0.51
22:45–01:05 M45 2.33 0.33
01:05–07:45 — nothing worth pointing at — 6.67

Targets

targetastronomyoverallbest windowhighestMoon sep.scheduled h
M31 Andromeda Galaxy 53 unknown 19:00–20:55 (good) 89.6° at 17:15 84.9° 1.17
M42 Great Orion Nebula 17 unknown 19:00–21:10 (marginal) 42.9° at 22:05 37.1° 0.0
M45 Seven Sisters 38 unknown 19:00–01:05 (marginal) 72.5° at 20:15 50.9° 2.33
NGC 7000 North America Nebula 19 unknown 19:00–19:30 (good) 87.2° at 13:30 112.6° 1.17
V1057 Cyg 19 unknown 19:00–19:30 (good) 87.3° at 13:30 112.6° 0.83
M33 Triangulum Pinwheel 50 unknown 19:00–20:45 (good) 79.1° at 18:05 78.6° 1.17

Left out


💡 API
curl -sS "https://devops.majbase.com/rozhen-planner/plan-api?targets=M31,M42,M45,NGC%207000&date=2030-01-18"

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"}.