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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 Saturday, 09 January 2044 · astronomical night 18:47 → 06:08 (11.35 h) · Moon 69% (waxing gibbous) · weather: none — the schedule is astronomy only; overall conditions unknown

M31M31 17:40–18:15: quality 0.1M31 18:15–18:50: quality 0.2M31 18:50–23:30: quality 0.5M31 23:30–00:00: quality 0.4M31 00:00–00:30: quality 0.3M31 00:30–00:35: quality 0.2observe M31 20:55–22:15M42M42 18:55–19:05: quality 0.2M42 19:05–19:30: quality 0.3M42 19:30–20:00: quality 0.4M42 20:00–22:45: quality 0.5M42 22:45–01:35: quality 0.6M42 01:35–02:00: quality 0.5M42 02:00–02:25: quality 0.4M42 02:25–02:30: quality 0.3observe M42 22:15–23:35M45M45 17:40–18:15: quality 0.1M45 18:15–18:50: quality 0.2M45 18:50–01:55: quality 0.5M45 01:55–02:20: quality 0.4M45 02:20–02:35: quality 0.3observe M45 00:30–02:30NGC 7000NGC 7000 17:40–18:15: quality 0.1NGC 7000 18:15–18:50: quality 0.3NGC 7000 18:50–19:30: quality 0.6NGC 7000 19:30–20:15: quality 0.5NGC 7000 20:15–20:40: quality 0.4NGC 7000 20:40–21:00: quality 0.3NGC 7000 07:10–07:20: quality 0.1observe NGC 7000 18:15–18:30observe NGC 7000 18:50–19:55V1057 CygV1057 Cyg 17:40–18:15: quality 0.1V1057 Cyg 18:15–18:50: quality 0.3V1057 Cyg 18:50–19:30: quality 0.6V1057 Cyg 19:30–20:15: quality 0.5V1057 Cyg 20:15–20:40: quality 0.4V1057 Cyg 20:40–21:00: quality 0.3V1057 Cyg 07:15–07:20: quality 0.1observe V1057 Cyg 19:55–20:55M33M33 17:40–18:15: quality 0.1M33 18:15–18:50: quality 0.2M33 18:50–23:50: 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 23:35–00:30scheduleNGC 7000V1057 CygM31M42M33M4518:0020:0022:0000:0002:0004:0006:00

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
18:15–18:30 NGC 7000 0.25 0.3
18:30–18:50 — nothing worth pointing at — 0.33
18:50–19:55 NGC 7000 1.08 0.56
19:55–20:55 V1057 Cyg 1.0 0.41
20:55–22:15 M31 1.33 0.47
22:15–23:35 M42 1.33 0.55
23:35–00:30 M33 0.92 0.4
00:30–02:30 M45 2.0 0.48
02:30–07:50 — nothing worth pointing at — 5.33

Targets

targetastronomyoverallbest windowhighestMoon sep.scheduled h
M31 Andromeda Galaxy 34 unknown 18:50–00:15 (marginal) 89.8° at 17:50 32.3° 1.33
M42 Great Orion Nebula 54 unknown 19:15–02:30 (marginal) 42.9° at 22:40 51.0° 1.33
M45 Seven Sisters 54 unknown 18:50–02:30 (marginal) 72.6° at 20:55 17.6° 2.0
NGC 7000 North America Nebula 19 unknown 18:50–20:55 (marginal) 87.2° at 14:05 72.3° 1.33
V1057 Cyg 18 unknown 18:50–20:55 (marginal) 87.2° at 14:05 72.3° 1.0
M33 Triangulum Pinwheel 35 unknown 18:50–00:30 (marginal) 79.2° at 18:40 17.7° 0.92
💡 API 
curl -sS "https://devops.majbase.com/rozhen-planner/plan-api?targets=M31,M42,M45,NGC%207000&date=2044-01-09"

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"}.