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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, 20 November 2043 · astronomical night 18:34 → 05:39 (11.09 h) · Moon 78% (waning gibbous) · weather: none — the schedule is astronomy only; overall conditions unknown

M31M31 17:30–18:05: quality 0.1M31 18:05–18:35: quality 0.5M31 18:35–20:30: quality 1.0M31 20:30–23:55: quality 0.8M31 23:55–01:15: quality 0.7M31 01:15–02:45: quality 0.6M31 02:45–03:10: quality 0.5M31 03:10–03:30: quality 0.4M31 03:30–03:50: quality 0.3observe M31 21:55–23:50M42M42 22:15–22:35: quality 0.3M42 22:35–23:05: quality 0.4M42 23:05–01:55: quality 0.5M42 01:55–04:55: quality 0.4M42 04:55–05:30: quality 0.3M42 05:30–05:40: quality 0.2M42 05:40–05:50: quality 0.1observe M42 03:40–05:15M45M45 18:35–18:45: quality 0.4M45 18:45–19:00: quality 0.5M45 19:00–19:10: quality 0.6M45 19:10–19:25: quality 0.7M45 19:25–20:10: quality 0.8M45 20:10–20:30: quality 0.9M45 20:30–23:10: quality 0.7M45 23:10–02:10: quality 0.6M45 02:10–04:10: quality 0.5M45 04:10–05:15: quality 0.4M45 05:15–05:40: quality 0.3M45 05:40–05:50: quality 0.1observe M45 01:45–03:40observe M45 05:15–05:25NGC 7000NGC 7000 17:30–18:05: quality 0.2NGC 7000 18:05–18:35: quality 0.5NGC 7000 18:35–20:30: quality 1.0NGC 7000 20:30–20:55: quality 0.9NGC 7000 20:55–22:20: quality 0.8NGC 7000 22:20–23:20: quality 0.7NGC 7000 23:20–23:35: quality 0.6NGC 7000 23:35–23:55: quality 0.5NGC 7000 23:55–00:15: quality 0.4NGC 7000 00:15–00:20: quality 0.3observe NGC 7000 18:05–20:00V1057 CygV1057 Cyg 17:30–18:05: quality 0.2V1057 Cyg 18:05–18:35: quality 0.5V1057 Cyg 18:35–20:30: quality 1.0V1057 Cyg 20:30–20:55: quality 0.9V1057 Cyg 20:55–22:20: quality 0.8V1057 Cyg 22:20–23:20: quality 0.7V1057 Cyg 23:20–23:35: quality 0.6V1057 Cyg 23:35–23:55: quality 0.5V1057 Cyg 23:55–00:15: quality 0.4V1057 Cyg 00:15–00:20: quality 0.3observe V1057 Cyg 20:00–21:55M33M33 17:30–18:05: quality 0.1M33 18:05–18:20: quality 0.4M33 18:20–18:35: quality 0.5M33 18:35–19:00: quality 0.9M33 19:00–20:30: quality 1.0M33 20:30–23:15: quality 0.8M33 23:15–01:15: quality 0.7M33 01:15–02:50: quality 0.6M33 02:50–03:20: quality 0.5M33 03:20–03:40: quality 0.4M33 03:40–04:00: quality 0.3observe M33 23:50–01:45scheduleNGC 7000V1057 CygM31M33M45M4218:0020:0022:0000:0002:0004:0006:00

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
16:55–18:05 — nothing worth pointing at — 1.17
18:05–20:00 NGC 7000 1.92 0.87
20:00–21:55 V1057 Cyg 1.92 0.87
21:55–23:50 M31 1.92 0.78
23:50–01:45 M33 1.92 0.68
01:45–03:40 M45 1.92 0.52
03:40–05:15 M42 1.58 0.38
05:15–05:25 M45 0.17 0.33
05:25–07:20 — nothing worth pointing at — 1.92

Targets

targetastronomyoverallbest windowhighestMoon sep.scheduled h
M31 Andromeda Galaxy 100 unknown 18:35–02:00 (good) 89.5° at 21:05 84.9° 1.92
M42 Great Orion Nebula 38 unknown 22:25–05:15 (marginal) 42.9° at 02:00 45.1° 1.58
M45 Seven Sisters 87 unknown 19:05–00:30 (good) 72.6° at 00:10 54.8° 2.08
NGC 7000 North America Nebula 100 unknown 18:35–23:25 (good) 87.2° at 17:25 108.3° 1.92
V1057 Cyg 100 unknown 18:35–23:25 (good) 87.2° at 17:25 108.4° 1.92
M33 Triangulum Pinwheel 100 unknown 18:35–02:00 (good) 79.2° at 22:00 80.4° 1.92
💡 API 
curl -sS "https://devops.majbase.com/rozhen-planner/plan-api?targets=M31,M42,M45,NGC%207000&date=2043-11-20"

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"}.