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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 2037 · astronomical night 18:33 → 05:40 (11.1 h) · Moon 96% (waxing gibbous) · weather: none — the schedule is astronomy only; overall conditions unknown

M31M31 17:30–18:05: quality 0.1M31 18:05–18:20: quality 0.3M31 18:20–18:35: quality 0.2M31 18:35–19:15: quality 0.5M31 19:15–02:55: quality 0.4M31 02:55–03:35: quality 0.3M31 03:35–03:45: quality 0.2observe M31 22:05–00:05M42M42 22:10–22:40: quality 0.2M42 22:40–23:40: quality 0.3M42 23:40–02:15: quality 0.4M42 02:15–05:05: quality 0.5M42 05:05–05:25: quality 0.4M42 05:25–05:40: quality 0.5M42 05:40–05:45: quality 0.4observe M42 00:05–02:05M45M45 18:35–19:05: quality 0.2M45 19:05–01:10: quality 0.3M45 01:10–04:15: quality 0.4M45 04:15–04:55: quality 0.5M45 04:55–05:25: quality 0.4M45 05:25–05:40: quality 0.5M45 05:40–05:45: quality 0.4observe M45 03:25–05:45NGC 7000NGC 7000 17:30–18:05: quality 0.1NGC 7000 18:05–18:35: quality 0.3NGC 7000 18:35–19:25: quality 0.7NGC 7000 19:25–21:25: quality 0.6NGC 7000 21:25–23:15: quality 0.5NGC 7000 23:15–23:45: quality 0.4NGC 7000 23:45–00:15: quality 0.3observe NGC 7000 18:05–20:05V1057 CygV1057 Cyg 17:30–18:05: quality 0.1V1057 Cyg 18:05–18:35: quality 0.3V1057 Cyg 18:35–19:25: quality 0.7V1057 Cyg 19:25–21:25: quality 0.6V1057 Cyg 21:25–23:15: quality 0.5V1057 Cyg 23:15–23:45: quality 0.4V1057 Cyg 23:45–00:15: quality 0.3observe V1057 Cyg 20:05–22:05M33M33 17:30–18:05: quality 0.1M33 18:05–18:35: quality 0.2M33 18:35–20:20: quality 0.4M33 20:20–02:35: quality 0.3M33 02:35–03:05: quality 0.4M33 03:05–03:40: quality 0.3M33 03:40–04:00: quality 0.2observe M33 02:05–03:25scheduleNGC 7000V1057 CygM31M42M33M4518:0020:0022:0000:0002:0004:0006:00

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
18:05–20:05 NGC 7000 2.0 0.58
20:05–22:05 V1057 Cyg 2.0 0.57
22:05–00:05 M31 2.0 0.36
00:05–02:05 M42 2.0 0.4
02:05–03:25 M33 1.33 0.34
03:25–05:45 M45 2.33 0.44
05:45–07:20 — nothing worth pointing at — 1.58

Targets

targetastronomyoverallbest windowhighestMoon sep.scheduled h
M31 Andromeda Galaxy 44 unknown 18:35–03:15 (marginal) 89.8° at 21:05 39.1° 2.0
M42 Great Orion Nebula 41 unknown 23:00–05:45 (marginal) 42.9° at 01:55 50.0° 2.0
M45 Seven Sisters 53 unknown 23:25–05:45 (marginal) 72.5° at 00:10 25.0° 2.33
NGC 7000 North America Nebula 55 unknown 18:35–20:35 (good) 87.2° at 17:20 77.3° 2.0
V1057 Cyg 55 unknown 18:35–20:35 (good) 87.3° at 17:20 77.3° 2.0
M33 Triangulum Pinwheel 33 unknown 23:25–03:25 (marginal) 79.2° at 21:55 24.5° 1.33
💡 API 
curl -sS "https://devops.majbase.com/rozhen-planner/plan-api?targets=M31,M42,M45,NGC%207000&date=2037-11-20"

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"}.