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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 Monday, 20 November 2045 · astronomical night 18:33 → 05:40 (11.1 h) · Moon 86% (waxing gibbous) · weather: none — the schedule is astronomy only; overall conditions unknown

M31M31 17:30–18:05: quality 0.1M31 18:05–18:35: quality 0.2M31 18:35–01:45: quality 0.4M31 01:45–02:50: quality 0.5M31 02:50–03:20: quality 0.4M31 03:20–03:50: quality 0.3observe M31 02:15–03:35M42M42 22:10–22:15: quality 0.2M42 22:15–22:40: quality 0.3M42 22:40–23:05: quality 0.4M42 23:05–00:15: quality 0.5M42 00:15–02:55: quality 0.6M42 02:55–03:55: quality 0.7M42 03:55–04:50: quality 0.8M42 04:50–05:10: quality 0.7M42 05:10–05:25: quality 0.6M42 05:25–05:40: quality 0.5M42 05:40–05:45: quality 0.4observe M42 00:20–02:15observe M42 03:50–05:45M45M45 18:35–18:50: quality 0.2M45 18:50–19:25: quality 0.3M45 19:25–22:25: quality 0.4M45 22:25–01:15: quality 0.5M45 01:15–03:55: quality 0.6M45 03:55–04:15: quality 0.9M45 04:15–05:00: quality 0.8M45 05:00–05:15: quality 0.7M45 05:15–05:25: quality 0.6M45 05:25–05:40: quality 0.5M45 05:40–05:45: quality 0.4observe M45 22:25–00:20NGC 7000NGC 7000 17:30–18:05: quality 0.1NGC 7000 18:05–18:35: quality 0.3NGC 7000 18:35–19:35: quality 0.6NGC 7000 19:35–22:55: quality 0.5NGC 7000 22:55–23:40: quality 0.4NGC 7000 23:40–00:10: quality 0.3NGC 7000 00:10–00:15: quality 0.2observe NGC 7000 18:35–20:30V1057 CygV1057 Cyg 17:30–18:05: quality 0.1V1057 Cyg 18:05–18:35: quality 0.3V1057 Cyg 18:35–19:35: quality 0.6V1057 Cyg 19:35–22:55: quality 0.5V1057 Cyg 22:55–23:40: quality 0.4V1057 Cyg 23:40–00:10: quality 0.3V1057 Cyg 00:10–00:15: quality 0.2observe V1057 Cyg 20:30–22:25M33M33 17:30–18:05: quality 0.1M33 18:05–18:35: quality 0.2M33 18:35–01:00: quality 0.4M33 01:00–03:10: quality 0.5M33 03:10–03:35: quality 0.4M33 03:35–03:55: quality 0.3M33 03:55–04:00: quality 0.4observe M33 03:35–03:50scheduleNGC 7000V1057 CygM45M42M31M4218:0020:0022:0000:0002:0004:0006:00

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
16:55–18:35 — nothing worth pointing at — 1.67
18:35–20:30 NGC 7000 1.92 0.55
20:30–22:25 V1057 Cyg 1.92 0.49
22:25–00:20 M45 1.92 0.48
00:20–02:15 M42 1.92 0.6
02:15–03:35 M31 1.33 0.41
03:35–03:50 M33 0.25 0.32
03:50–05:45 M42 1.92 0.7
05:45–07:20 — nothing worth pointing at — 1.58

Targets

targetastronomyoverallbest windowhighestMoon sep.scheduled h
M31 Andromeda Galaxy 45 unknown 18:35–03:35 (marginal) 89.8° at 21:05 31.1° 1.33
M42 Great Orion Nebula 84 unknown 01:20–05:15 (good) 42.9° at 01:55 72.1° 3.83
M45 Seven Sisters 87 unknown 02:25–05:20 (good) 72.6° at 00:10 43.6° 1.92
NGC 7000 North America Nebula 42 unknown 18:35–23:55 (marginal) 87.2° at 17:20 60.4° 1.92
V1057 Cyg 42 unknown 18:35–23:55 (marginal) 87.2° at 17:20 60.4° 1.92
M33 Triangulum Pinwheel 47 unknown 18:35–03:50 (marginal) 79.2° at 21:55 22.5° 0.25
💡 API 
curl -sS "https://devops.majbase.com/rozhen-planner/plan-api?targets=M31,M42,M45,NGC%207000&date=2045-11-20"

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"}.