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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 November 2040 · astronomical night 18:32 → 05:43 (11.18 h) · Moon 76% (waning gibbous) · weather: none — the schedule is astronomy only; overall conditions unknown

M31M31 17:30–18:00: quality 0.1M31 18:00–18:35: quality 0.5M31 18:35–20:45: quality 1.0M31 20:45–20:55: quality 0.9M31 20:55–00:05: quality 0.8M31 00:05–01:25: quality 0.7M31 01:25–02:35: quality 0.6M31 02:35–03:00: quality 0.5M31 03:00–03:20: quality 0.4M31 03:20–03:35: quality 0.3observe M31 21:50–23:45M42M42 22:00–22:15: quality 0.3M42 22:15–22:45: quality 0.4M42 22:45–02:55: quality 0.5M42 02:55–04:50: quality 0.4M42 04:50–05:20: quality 0.3M42 05:20–05:35: quality 0.2observe M42 03:35–05:05M45M45 18:25–18:35: quality 0.2M45 18:35–18:45: quality 0.5M45 18:45–18:55: quality 0.6M45 18:55–19:10: quality 0.7M45 19:10–19:55: quality 0.8M45 19:55–20:45: quality 0.9M45 20:45–00:05: quality 0.7M45 00:05–02:40: quality 0.6M45 02:40–04:40: quality 0.5M45 04:40–05:05: quality 0.4M45 05:05–05:30: quality 0.3M45 05:30–05:35: quality 0.2observe M45 01:40–03:35observe M45 05:05–05:15NGC 7000NGC 7000 17:30–18:00: quality 0.2NGC 7000 18:00–18:35: quality 0.5NGC 7000 18:35–20:40: quality 1.0NGC 7000 20:40–20:50: quality 0.9NGC 7000 20:50–22:15: quality 0.8NGC 7000 22:15–23:05: quality 0.7NGC 7000 23:05–23:25: quality 0.6NGC 7000 23:25–23:45: quality 0.5NGC 7000 23:45–00:05: quality 0.4observe NGC 7000 18:00–19:55V1057 CygV1057 Cyg 17:30–18:00: quality 0.2V1057 Cyg 18:00–18:35: quality 0.5V1057 Cyg 18:35–20:40: quality 1.0V1057 Cyg 20:40–20:50: quality 0.9V1057 Cyg 20:50–22:15: quality 0.8V1057 Cyg 22:15–23:05: quality 0.7V1057 Cyg 23:05–23:25: quality 0.6V1057 Cyg 23:25–23:45: quality 0.5V1057 Cyg 23:45–00:05: quality 0.4observe V1057 Cyg 19:55–21:50M33M33 17:30–18:00: quality 0.1M33 18:00–18:05: quality 0.4M33 18:05–18:35: quality 0.5M33 18:35–18:45: quality 0.9M33 18:45–20:45: quality 1.0M33 20:45–00:10: quality 0.8M33 00:10–01:30: quality 0.7M33 01:30–02:50: quality 0.6M33 02:50–03:10: quality 0.5M33 03:10–03:30: quality 0.4M33 03:30–03:45: quality 0.3observe M33 23:45–01:40scheduleNGC 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
16:50–18:00 — nothing worth pointing at — 1.17
18:00–19:55 NGC 7000 1.92 0.85
19:55–21:50 V1057 Cyg 1.92 0.89
21:50–23:45 M31 1.92 0.8
23:45–01:40 M33 1.92 0.71
01:40–03:35 M45 1.92 0.55
03:35–05:05 M42 1.5 0.39
05:05–05:15 M45 0.17 0.33
05:15–07:25 — nothing worth pointing at — 2.17

Targets

targetastronomyoverallbest windowhighestMoon sep.scheduled h
M31 Andromeda Galaxy 100 unknown 18:35–02:15 (good) 89.5° at 20:55 89.2° 1.92
M42 Great Orion Nebula 43 unknown 22:05–05:05 (marginal) 42.9° at 01:45 48.9° 1.5
M45 Seven Sisters 91 unknown 18:50–01:45 (good) 72.5° at 23:55 60.1° 2.08
NGC 7000 North America Nebula 100 unknown 18:35–23:15 (good) 87.2° at 17:10 110.1° 1.92
V1057 Cyg 100 unknown 18:35–23:15 (good) 87.3° at 17:10 110.1° 1.92
M33 Triangulum Pinwheel 100 unknown 18:35–02:15 (good) 79.2° at 21:45 85.4° 1.92
💡 API 
curl -sS "https://devops.majbase.com/rozhen-planner/plan-api?targets=M31,M42,M45,NGC%207000&date=2040-11-23"

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"}.