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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, 17 January 2033 · astronomical night 18:56 → 06:06 (11.17 h) · Moon 94% (waning gibbous) · weather: none — the schedule is astronomy only; overall conditions unknown

M31M31 17:50–18:25: quality 0.2M31 18:25–19:00: quality 0.5M31 19:00–19:35: quality 1.0M31 19:35–20:40: quality 0.9M31 20:40–21:55: quality 0.8M31 21:55–23:00: quality 0.7M31 23:00–23:15: quality 0.6M31 23:15–23:35: quality 0.5M31 23:35–23:55: quality 0.4M31 23:55–00:00: quality 0.3observe M31 18:25–19:40M42M42 18:25–18:40: quality 0.2M42 18:40–19:00: quality 0.3M42 19:00–19:20: quality 0.7M42 19:20–19:35: quality 0.8M42 19:35–22:00: quality 0.6M42 22:00–00:15: quality 0.5M42 00:15–01:15: quality 0.4M42 01:15–01:45: quality 0.3M42 01:45–02:00: quality 0.2observe M42 22:45–01:10M45M45 17:50–18:25: quality 0.1M45 18:25–19:00: quality 0.5M45 19:00–19:35: quality 1.0M45 19:35–21:15: quality 0.8M45 21:15–23:10: quality 0.7M45 23:10–00:40: quality 0.6M45 00:40–01:20: quality 0.5M45 01:20–01:40: quality 0.4M45 01:40–02:00: quality 0.3observe M45 21:30–22:45observe M45 01:10–01:50NGC 7000NGC 7000 17:50–18:25: quality 0.1NGC 7000 18:25–19:00: quality 0.4NGC 7000 19:00–19:25: quality 0.8NGC 7000 19:25–19:35: quality 0.7NGC 7000 19:35–19:55: quality 0.6NGC 7000 19:55–20:10: quality 0.5NGC 7000 20:10–20:25: quality 0.4NGC 7000 06:40–07:15: quality 0.1observe NGC 7000 19:40–20:15V1057 CygV1057 Cyg 17:50–18:25: quality 0.1V1057 Cyg 18:25–19:00: quality 0.4V1057 Cyg 19:00–19:25: quality 0.8V1057 Cyg 19:25–19:35: quality 0.7V1057 Cyg 19:35–19:55: quality 0.6V1057 Cyg 19:55–20:10: quality 0.5V1057 Cyg 20:10–20:25: quality 0.4V1057 Cyg 06:40–07:15: quality 0.1M33M33 17:50–18:25: quality 0.2M33 18:25–19:00: quality 0.5M33 19:00–19:35: quality 1.0M33 19:35–20:50: quality 0.9M33 20:50–22:05: quality 0.8M33 22:05–23:15: quality 0.7M33 23:15–23:30: quality 0.6M33 23:30–23:45: quality 0.5M33 23:45–00:05: quality 0.4M33 00:05–00:10: quality 0.3observe M33 20:15–21:30scheduleM31M33M45M4218:0020:0022:0000:0002:0004:0006:00

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
18:25–19:40 M31 1.25 0.76
19:40–20:15 NGC 7000 0.58 0.52
20:15–21:30 M33 1.25 0.85
21:30–22:45 M45 1.25 0.72
22:45–01:10 M42 2.42 0.46
01:10–01:50 M45 0.67 0.4
01:50–07:45 — nothing worth pointing at — 5.92

Targets

targetastronomyoverallbest windowhighestMoon sep.scheduled h
M31 Andromeda Galaxy 100 unknown 19:00–23:10 (good) 89.7° at 17:15 115.0° 1.25
M42 Great Orion Nebula 75 unknown 19:00–19:35 (good) 42.9° at 22:10 63.5° 2.42
M45 Seven Sisters 100 unknown 19:00–23:55 (good) 72.6° at 20:20 85.6° 1.92
NGC 7000 North America Nebula 25 unknown 19:00–19:45 (good) 87.2° at 13:30 125.7° 0.58
V1057 Cyg 25 unknown 19:00–19:45 (good) 87.3° at 13:30 125.7° 0.0
M33 Triangulum Pinwheel 100 unknown 19:00–23:20 (good) 79.1° at 18:05 112.0° 1.25

Left out

💡 API 
curl -sS "https://devops.majbase.com/rozhen-planner/plan-api?targets=M31,M42,M45,NGC%207000&date=2033-01-17"

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"}.