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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, 24 February 2045 · astronomical night 19:38 → 05:29 (9.85 h) · Moon 53% (first quarter) · weather: none — the schedule is astronomy only; overall conditions unknown

M31M31 18:35–19:10: quality 0.1M31 19:10–19:40: quality 0.3M31 19:40–19:55: quality 0.6M31 19:55–20:45: quality 0.5M31 20:45–21:10: quality 0.4M31 21:10–21:30: quality 0.3observe M31 19:40–20:40M42M42 18:35–19:10: quality 0.1M42 19:10–19:40: quality 0.3M42 19:40–20:00: quality 0.5M42 20:00–21:30: quality 0.6M42 21:30–22:50: quality 0.5M42 22:50–23:15: quality 0.4M42 23:15–23:30: quality 0.3observe M42 22:30–23:25M45M45 18:35–19:10: quality 0.1M45 19:10–19:40: quality 0.3M45 19:40–21:40: quality 0.6M45 21:40–22:50: quality 0.5M45 22:50–23:15: quality 0.4M45 23:15–23:30: quality 0.3observe M45 21:30–22:30NGC 7000NGC 7000 04:10–04:20: quality 0.4NGC 7000 04:20–04:35: quality 0.5NGC 7000 04:35–04:50: quality 0.6NGC 7000 04:50–05:10: quality 0.7NGC 7000 05:10–05:30: quality 0.8NGC 7000 05:30–06:05: quality 0.4NGC 7000 06:05–06:35: quality 0.1observe NGC 7000 04:10–05:10V1057 CygV1057 Cyg 04:10–04:20: quality 0.4V1057 Cyg 04:20–04:35: quality 0.5V1057 Cyg 04:35–04:50: quality 0.6V1057 Cyg 04:50–05:10: quality 0.7V1057 Cyg 05:10–05:30: quality 0.8V1057 Cyg 05:30–06:05: quality 0.4V1057 Cyg 06:05–06:35: quality 0.1observe V1057 Cyg 05:10–06:05M33M33 18:35–19:10: quality 0.1M33 19:10–19:40: quality 0.3M33 19:40–20:55: quality 0.5M33 20:55–21:20: quality 0.4M33 21:20–21:40: quality 0.3observe M33 20:40–21:30scheduleM31M33M45M42NGC 7000V1057 Cyg20:0022:0000:0002:0004:0006:00

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
18:05–19:40 — nothing worth pointing at — 1.58
19:40–20:40 M31 1.0 0.54
20:40–21:30 M33 0.83 0.41
21:30–22:30 M45 1.0 0.54
22:30–23:25 M42 0.92 0.41
23:25–04:10 — nothing worth pointing at — 4.75
04:10–05:10 NGC 7000 1.0 0.58
05:10–06:05 V1057 Cyg 0.92 0.55
06:05–07:05 — nothing worth pointing at — 1.0

Targets

targetastronomyoverallbest windowhighestMoon sep.scheduled h
M31 Andromeda Galaxy 15 unknown 19:40–21:25 (marginal) 89.6° at 14:45 48.1° 1.0
M42 Great Orion Nebula 30 unknown 19:40–23:25 (marginal) 42.9° at 19:40 36.2° 0.92
M45 Seven Sisters 33 unknown 19:40–23:25 (marginal) 72.6° at 17:50 10.1° 1.0
NGC 7000 North America Nebula 23 unknown 04:45–05:30 (good) 87.2° at 11:00 85.8° 1.0
V1057 Cyg 23 unknown 04:45–05:30 (good) 87.3° at 11:00 85.8° 0.92
M33 Triangulum Pinwheel 15 unknown 19:40–21:30 (marginal) 79.2° at 15:40 38.3° 0.83
💡 API 
curl -sS "https://devops.majbase.com/rozhen-planner/plan-api?targets=M31,M42,M45,NGC%207000&date=2045-02-24"

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"}.