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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 Wednesday, 08 January 2031 · astronomical night 18:46 → 06:08 (11.36 h) · Moon 100% (full moon) · weather: none — the schedule is astronomy only; overall conditions unknown

M31M31 17:40–18:15: quality 0.1M31 18:15–18:50: quality 0.4M31 18:50–21:00: quality 0.7M31 21:00–22:30: quality 0.6M31 22:30–23:40: quality 0.5M31 23:40–00:05: quality 0.4M31 00:05–00:35: quality 0.3observe M31 20:45–22:00M42M42 19:00–19:15: quality 0.2M42 19:15–23:35: quality 0.3M42 23:35–02:20: quality 0.2M42 02:20–02:35: quality 0.1M45M45 17:40–18:15: quality 0.1M45 18:15–18:50: quality 0.3M45 18:50–19:25: quality 0.6M45 19:25–21:25: quality 0.5M45 21:25–00:05: quality 0.4M45 00:05–02:05: quality 0.3M45 02:05–02:35: quality 0.2observe M45 23:15–01:45NGC 7000NGC 7000 17:40–18:15: quality 0.1NGC 7000 18:15–18:50: quality 0.4NGC 7000 18:50–18:55: quality 0.8NGC 7000 18:55–20:00: quality 0.7NGC 7000 20:00–20:20: quality 0.6NGC 7000 20:20–20:40: quality 0.5NGC 7000 20:40–21:00: quality 0.4NGC 7000 21:00–21:05: quality 0.3NGC 7000 07:15–07:20: quality 0.1observe NGC 7000 18:15–19:30V1057 CygV1057 Cyg 17:40–18:15: quality 0.1V1057 Cyg 18:15–18:50: quality 0.4V1057 Cyg 18:50–18:55: quality 0.8V1057 Cyg 18:55–20:00: quality 0.7V1057 Cyg 20:00–20:20: quality 0.6V1057 Cyg 20:20–20:40: quality 0.5V1057 Cyg 20:40–21:00: quality 0.4V1057 Cyg 21:00–21:05: quality 0.3V1057 Cyg 07:15–07:20: quality 0.1observe V1057 Cyg 19:30–20:45M33M33 17:40–18:15: quality 0.1M33 18:15–18:50: quality 0.4M33 18:50–20:25: quality 0.7M33 20:25–22:10: quality 0.6M33 22:10–23:50: quality 0.5M33 23:50–00:15: quality 0.4M33 00:15–00:40: quality 0.3M33 00:40–00:45: quality 0.2observe M33 22:00–23:15scheduleNGC 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
17:05–18:15 — nothing worth pointing at — 1.17
18:15–19:30 NGC 7000 1.25 0.57
19:30–20:45 V1057 Cyg 1.25 0.6
20:45–22:00 M31 1.25 0.62
22:00–23:15 M33 1.25 0.52
23:15–01:45 M45 2.5 0.34
01:45–07:50 — nothing worth pointing at — 6.08

Targets

targetastronomyoverallbest windowhighestMoon sep.scheduled h
M31 Andromeda Galaxy 67 unknown 18:50–21:45 (good) 89.6° at 17:55 85.7° 1.25
M42 Great Orion Nebula 17 unknown 19:40–21:45 (marginal) 42.9° at 22:45 36.1° 0.0
M45 Seven Sisters 48 unknown 18:50–01:45 (marginal) 72.5° at 20:55 51.1° 2.5
NGC 7000 North America Nebula 32 unknown 18:50–20:10 (good) 87.2° at 14:10 113.8° 1.25
V1057 Cyg 31 unknown 18:50–20:10 (good) 87.3° at 14:10 113.8° 1.25
M33 Triangulum Pinwheel 63 unknown 18:50–21:30 (good) 79.1° at 18:45 79.0° 1.25

Left out

💡 API 
curl -sS "https://devops.majbase.com/rozhen-planner/plan-api?targets=M31,M42,M45,NGC%207000&date=2031-01-08"

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"}.