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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, 23 January 2043 · astronomical night 19:01 → 06:03 (11.03 h) · Moon 98% (full moon) · weather: none — the schedule is astronomy only; overall conditions unknown

M31M31 17:55–18:30: quality 0.1M31 18:30–19:05: quality 0.3M31 19:05–20:40: quality 0.6M31 20:40–22:30: quality 0.5M31 22:30–23:00: quality 0.4M31 23:00–23:30: quality 0.3M31 23:30–23:35: quality 0.2observe M31 20:05–21:00M42M42 18:30–18:45: quality 0.1M42 18:45–19:05: quality 0.2M42 19:05–00:35: quality 0.3M42 00:35–01:30: quality 0.2M42 01:30–01:35: quality 0.1M45M45 17:55–18:30: quality 0.1M45 18:30–19:05: quality 0.2M45 19:05–19:25: quality 0.5M45 19:25–22:10: quality 0.4M45 22:10–00:55: quality 0.3M45 00:55–01:35: quality 0.2observe M45 21:55–22:50observe M45 23:20–23:50NGC 7000NGC 7000 17:55–18:30: quality 0.1NGC 7000 18:30–19:05: quality 0.3NGC 7000 19:05–19:15: quality 0.6NGC 7000 19:15–19:35: quality 0.5NGC 7000 19:35–19:55: quality 0.4NGC 7000 19:55–20:05: quality 0.3NGC 7000 06:15–06:40: quality 0.2NGC 7000 06:40–07:15: quality 0.1observe NGC 7000 18:30–19:25V1057 CygV1057 Cyg 17:55–18:30: quality 0.1V1057 Cyg 18:30–19:05: quality 0.3V1057 Cyg 19:05–19:15: quality 0.6V1057 Cyg 19:15–19:35: quality 0.5V1057 Cyg 19:35–19:55: quality 0.4V1057 Cyg 19:55–20:05: quality 0.3V1057 Cyg 06:15–06:40: quality 0.2V1057 Cyg 06:40–07:15: quality 0.1observe V1057 Cyg 19:25–20:05M33M33 17:55–18:30: quality 0.1M33 18:30–19:05: quality 0.3M33 19:05–20:30: quality 0.6M33 20:30–22:10: quality 0.5M33 22:10–23:10: quality 0.4M33 23:10–23:35: quality 0.3M33 23:35–23:45: quality 0.2observe M33 21:00–21:55observe M33 22:50–23:20scheduleNGC 7000M31M33M4518:0020:0022:0000:0002:0004:0006:00

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
17:20–18:30 — nothing worth pointing at — 1.17
18:30–19:25 NGC 7000 0.92 0.4
19:25–20:05 V1057 Cyg 0.67 0.4
20:05–21:00 M31 0.92 0.56
21:00–21:55 M33 0.92 0.49
21:55–22:50 M45 0.92 0.34
22:50–23:20 M33 0.5 0.36
23:20–23:50 M45 0.5 0.31
23:50–07:45 — nothing worth pointing at — 7.92

Targets

targetastronomyoverallbest windowhighestMoon sep.scheduled h
M31 Andromeda Galaxy 40 unknown 19:05–19:55 (good) 89.8° at 16:55 77.9° 0.92
M42 Great Orion Nebula 16 unknown 19:05–21:10 (marginal) 42.9° at 21:45 40.6° 0.0
M45 Seven Sisters 28 unknown 19:05–23:50 (marginal) 72.5° at 20:00 46.7° 1.42
NGC 7000 North America Nebula 12 unknown 18:30–20:05 (marginal) 87.2° at 13:10 104.5° 0.92
V1057 Cyg 12 unknown 18:30–20:05 (marginal) 87.3° at 13:10 104.5° 0.67
M33 Triangulum Pinwheel 38 unknown 19:05–19:20 (good) 79.2° at 17:45 72.7° 1.42

Left out

💡 API 
curl -sS "https://devops.majbase.com/rozhen-planner/plan-api?targets=M31,M42,M45,NGC%207000&date=2043-01-23"

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"}.