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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 Sunday, 23 November 2042 · astronomical night 18:32 → 05:42 (11.17 h) · Moon 84% (waxing gibbous) · weather: none — the schedule is astronomy only; overall conditions unknown

M31M31 17:30–18:00: quality 0.1M31 18:00–18:35: quality 0.2M31 18:35–19:15: quality 0.5M31 19:15–23:00: quality 0.4M31 23:00–02:45: quality 0.5M31 02:45–03:15: quality 0.4M31 03:15–03:35: quality 0.3observe M31 02:00–03:30M42M42 22:00–22:25: quality 0.3M42 22:25–22:50: quality 0.4M42 22:50–23:55: quality 0.5M42 23:55–02:25: quality 0.6M42 02:25–03:35: quality 0.7M42 03:35–04:40: quality 0.8M42 04:40–04:55: quality 0.7M42 04:55–05:15: quality 0.6M42 05:15–05:30: quality 0.5M42 05:30–05:35: quality 0.4observe M42 00:00–02:00M45M45 18:25–18:35: quality 0.1M45 18:35–19:05: quality 0.3M45 19:05–21:20: quality 0.4M45 21:20–00:30: quality 0.5M45 00:30–03:35: quality 0.6M45 03:35–04:00: quality 0.9M45 04:00–04:50: quality 0.8M45 04:50–05:00: quality 0.7M45 05:00–05:15: quality 0.6M45 05:15–05:30: quality 0.5M45 05:30–05:35: quality 0.4observe M45 22:00–00:00observe M45 03:45–05:35NGC 7000NGC 7000 17:30–18:00: quality 0.1NGC 7000 18:00–18:35: quality 0.3NGC 7000 18:35–20:40: quality 0.6NGC 7000 20:40–23:05: quality 0.5NGC 7000 23:05–23:35: quality 0.4NGC 7000 23:35–00:05: quality 0.3observe NGC 7000 18:00–20:00V1057 CygV1057 Cyg 17:30–18:00: quality 0.1V1057 Cyg 18:00–18:35: quality 0.3V1057 Cyg 18:35–20:40: quality 0.6V1057 Cyg 20:40–23:05: quality 0.5V1057 Cyg 23:05–23:35: quality 0.4V1057 Cyg 23:35–00:05: quality 0.3observe V1057 Cyg 20:00–22:00M33M33 17:30–18:00: quality 0.1M33 18:00–18:35: quality 0.2M33 18:35–23:45: quality 0.4M33 23:45–03:00: quality 0.5M33 03:00–03:25: quality 0.4M33 03:25–03:35: quality 0.3M33 03:35–03:40: quality 0.5M33 03:40–03:45: quality 0.4observe M33 03:30–03:45scheduleNGC 7000V1057 CygM45M42M31M4518:0020:0022:0000:0002:0004:0006:00

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
18:00–20:00 NGC 7000 2.0 0.51
20:00–22:00 V1057 Cyg 2.0 0.54
22:00–00:00 M45 2.0 0.5
00:00–02:00 M42 2.0 0.6
02:00–03:30 M31 1.5 0.43
03:30–03:45 M33 0.25 0.41
03:45–05:35 M45 1.83 0.72
05:35–07:25 — nothing worth pointing at — 1.83

Targets

targetastronomyoverallbest windowhighestMoon sep.scheduled h
M31 Andromeda Galaxy 49 unknown 18:35–03:30 (marginal) 89.8° at 20:55 35.5° 1.5
M42 Great Orion Nebula 85 unknown 01:00–05:05 (good) 42.9° at 01:45 70.5° 2.0
M45 Seven Sisters 88 unknown 01:35–05:10 (good) 72.5° at 00:00 44.6° 3.83
NGC 7000 North America Nebula 46 unknown 18:35–19:05 (good) 87.2° at 17:10 64.3° 2.0
V1057 Cyg 46 unknown 18:35–19:05 (good) 87.3° at 17:10 64.3° 2.0
M33 Triangulum Pinwheel 49 unknown 18:35–03:45 (marginal) 79.2° at 21:45 26.3° 0.25
💡 API 
curl -sS "https://devops.majbase.com/rozhen-planner/plan-api?targets=M31,M42,M45,NGC%207000&date=2042-11-23"

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"}.