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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, 12 January 2044 · astronomical night 18:50 → 06:08 (11.29 h) · Moon 95% (waxing gibbous) · weather: none — the schedule is astronomy only; overall conditions unknown

M31M31 17:45–18:20: quality 0.1M31 18:20–18:55: quality 0.3M31 18:55–21:05: quality 0.5M31 21:05–23:25: quality 0.4M31 23:25–00:00: quality 0.3M31 00:00–00:20: quality 0.2observe M31 20:30–21:35M42M42 18:45–18:55: quality 0.1M42 18:55–19:40: quality 0.2M42 19:40–21:30: quality 0.3M42 21:30–23:40: quality 0.2M42 23:40–01:25: quality 0.3M42 01:25–02:20: quality 0.2M45M45 17:45–18:20: quality 0.1M45 18:20–18:55: quality 0.2M45 18:55–22:50: quality 0.3M45 22:50–01:10: quality 0.2M45 01:10–01:30: quality 0.3M45 01:30–02:20: quality 0.2NGC 7000NGC 7000 17:45–18:20: quality 0.1NGC 7000 18:20–18:55: quality 0.3NGC 7000 18:55–19:45: quality 0.6NGC 7000 19:45–20:10: quality 0.5NGC 7000 20:10–20:30: quality 0.4NGC 7000 20:30–20:50: quality 0.3NGC 7000 07:00–07:20: quality 0.1observe NGC 7000 18:20–19:25V1057 CygV1057 Cyg 17:45–18:20: quality 0.1V1057 Cyg 18:20–18:55: quality 0.3V1057 Cyg 18:55–19:45: quality 0.6V1057 Cyg 19:45–20:10: quality 0.5V1057 Cyg 20:10–20:30: quality 0.4V1057 Cyg 20:30–20:50: quality 0.3V1057 Cyg 07:00–07:20: quality 0.1observe V1057 Cyg 19:25–20:30M33M33 17:45–18:20: quality 0.1M33 18:20–18:40: quality 0.3M33 18:40–18:55: quality 0.2M33 18:55–20:00: quality 0.5M33 20:00–22:50: quality 0.4M33 22:50–00:05: quality 0.3M33 00:05–00:30: quality 0.2observe M33 21:35–23:45scheduleNGC 7000V1057 CygM31M3318:0020:0022:0000:0002:0004:0006:00

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
17:10–18:20 — nothing worth pointing at — 1.17
18:20–19:25 NGC 7000 1.08 0.45
19:25–20:30 V1057 Cyg 1.08 0.49
20:30–21:35 M31 1.08 0.45
21:35–23:45 M33 2.17 0.36
23:45–07:50 — nothing worth pointing at — 8.08

Targets

targetastronomyoverallbest windowhighestMoon sep.scheduled h
M31 Andromeda Galaxy 33 unknown 18:55–23:40 (marginal) 89.7° at 17:40 61.2° 1.08
M42 Great Orion Nebula 12 unknown — 42.9° at 22:30 33.9° 0.0
M45 Seven Sisters 18 unknown 18:55–20:05 (marginal) 72.5° at 20:40 26.6° 0.0
NGC 7000 North America Nebula 18 unknown 18:55–19:10 (good) 87.2° at 13:55 94.7° 1.08
V1057 Cyg 18 unknown 18:55–19:10 (good) 87.3° at 13:55 94.7° 1.08
M33 Triangulum Pinwheel 28 unknown 18:55–23:45 (marginal) 79.2° at 18:30 53.7° 2.17

Left out

💡 API 
curl -sS "https://devops.majbase.com/rozhen-planner/plan-api?targets=M31,M42,M45,NGC%207000&date=2044-01-12"

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"}.