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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 Wednesday, 18 November 2037 · astronomical night 18:34 → 05:38 (11.05 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 0.3M31 18:35–03:10: quality 0.5M31 03:10–03:25: quality 0.4M31 03:25–03:30: quality 0.6M31 03:30–03:45: quality 0.5M31 03:45–03:55: quality 0.4observe M31 02:05–03:30M42M42 22:20–22:45: quality 0.3M42 22:45–23:10: quality 0.4M42 23:10–00:05: quality 0.5M42 00:05–02:15: quality 0.6M42 02:15–03:25: quality 0.7M42 03:25–03:50: quality 0.9M42 03:50–05:00: quality 0.8M42 05:00–05:15: quality 0.7M42 05:15–05:30: quality 0.6M42 05:30–05:40: quality 0.5M42 05:40–05:55: quality 0.2observe M42 00:05–02:05M45M45 18:45–18:50: quality 0.2M45 18:50–19:20: quality 0.3M45 19:20–20:50: quality 0.4M45 20:50–00:00: quality 0.5M45 00:00–02:15: quality 0.6M45 02:15–03:25: quality 0.7M45 03:25–04:20: quality 0.9M45 04:20–05:05: quality 0.8M45 05:05–05:20: quality 0.7M45 05:20–05:35: quality 0.6M45 05:35–05:40: quality 0.5M45 05:40–05:55: quality 0.2observe M45 22:05–00:05observe M45 04:05–05:40NGC 7000NGC 7000 17:30–18:05: quality 0.1NGC 7000 18:05–18:35: quality 0.3NGC 7000 18:35–21:40: quality 0.6NGC 7000 21:40–23:30: quality 0.5NGC 7000 23:30–00:00: quality 0.4NGC 7000 00:00–00:25: 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 18:35–21:35: quality 0.6V1057 Cyg 21:35–23:30: quality 0.5V1057 Cyg 23:30–00:00: quality 0.4V1057 Cyg 00:00–00:25: quality 0.3observe V1057 Cyg 20:05–22:05M33M33 17:30–18:05: quality 0.1M33 18:05–18:35: quality 0.2M33 18:35–23:25: quality 0.4M33 23:25–03:25: quality 0.5M33 03:25–03:30: quality 0.7M33 03:30–03:45: quality 0.6M33 03:45–04:00: quality 0.5M33 04:00–04:05: quality 0.4observe M33 03:30–04:05scheduleNGC 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
16:55–18:05 — nothing worth pointing at — 1.17
18:05–20:05 NGC 7000 2.0 0.55
20:05–22:05 V1057 Cyg 2.0 0.57
22:05–00:05 M45 2.0 0.52
00:05–02:05 M42 2.0 0.6
02:05–03:30 M31 1.42 0.5
03:30–04:05 M33 0.58 0.52
04:05–05:40 M45 1.58 0.76
05:40–07:20 — nothing worth pointing at — 1.67

Targets

targetastronomyoverallbest windowhighestMoon sep.scheduled h
M31 Andromeda Galaxy 57 unknown 18:35–03:55 (marginal) 89.6° at 21:15 41.1° 1.42
M42 Great Orion Nebula 86 unknown 01:05–05:25 (good) 42.9° at 02:05 70.6° 2.0
M45 Seven Sisters 92 unknown 01:15–05:25 (good) 72.5° at 00:15 48.2° 3.58
NGC 7000 North America Nebula 54 unknown 18:35–20:30 (good) 87.2° at 17:30 68.0° 2.0
V1057 Cyg 54 unknown 18:35–20:30 (good) 87.3° at 17:30 67.9° 2.0
M33 Triangulum Pinwheel 66 unknown 03:25–03:35 (good) 79.2° at 22:05 31.9° 0.58
💡 API 
curl -sS "https://devops.majbase.com/rozhen-planner/plan-api?targets=M31,M42,M45,NGC%207000&date=2037-11-18"

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"}.