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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 Tuesday, 17 November 2026 · astronomical night 18:35 → 05:36 (11.02 h) · Moon 54% (waxing gibbous) · weather: none — the schedule is astronomy only; overall conditions unknown

M31M31 17:30–18:05: quality 0.1M31 18:05–18:40: quality 0.4M31 18:40–00:00: quality 0.8M31 00:00–00:45: quality 1.0M31 00:45–02:10: quality 0.9M31 02:10–03:05: quality 0.8M31 03:05–03:20: quality 0.7M31 03:20–03:35: quality 0.6M31 03:35–03:50: quality 0.5M31 03:50–04:00: quality 0.4observe M31 02:05–03:50M42M42 22:25–22:40: quality 0.4M42 22:40–22:55: quality 0.5M42 22:55–23:10: quality 0.6M42 23:10–23:35: quality 0.7M42 23:35–00:30: quality 0.8M42 00:30–03:55: quality 0.9M42 03:55–05:05: quality 0.8M42 05:05–05:20: quality 0.7M42 05:20–05:35: quality 0.6M42 05:35–05:40: quality 0.5M42 05:40–05:45: quality 0.3M42 05:45–06:00: quality 0.2observe M42 03:50–05:40M45M45 18:50–19:05: quality 0.4M45 19:05–19:25: quality 0.5M45 19:25–19:40: quality 0.6M45 19:40–20:50: quality 0.7M45 20:50–22:10: quality 0.8M45 22:10–00:00: quality 0.9M45 00:00–03:05: quality 1.0M45 03:05–04:25: quality 0.9M45 04:25–05:10: quality 0.8M45 05:10–05:25: quality 0.7M45 05:25–05:40: quality 0.6M45 05:40–05:45: quality 0.3M45 05:45–06:00: quality 0.2observe M45 22:05–00:05NGC 7000NGC 7000 17:30–18:05: quality 0.1NGC 7000 18:05–18:40: quality 0.4NGC 7000 18:40–20:10: quality 0.7NGC 7000 20:10–20:25: quality 0.8NGC 7000 20:25–23:20: quality 0.7NGC 7000 23:20–23:45: quality 0.6NGC 7000 23:45–00:00: quality 0.5NGC 7000 00:00–00:05: quality 0.6NGC 7000 00:05–00:20: quality 0.5NGC 7000 00:20–00:30: quality 0.4observe NGC 7000 18:05–20:05V1057 CygV1057 Cyg 17:30–18:05: quality 0.1V1057 Cyg 18:05–18:40: quality 0.4V1057 Cyg 18:40–20:10: quality 0.7V1057 Cyg 20:10–20:25: quality 0.8V1057 Cyg 20:25–23:20: quality 0.7V1057 Cyg 23:20–23:45: quality 0.6V1057 Cyg 23:45–00:20: quality 0.5V1057 Cyg 00:20–00:30: quality 0.4observe V1057 Cyg 20:05–22:05M33M33 17:30–18:05: quality 0.1M33 18:05–18:40: quality 0.3M33 18:40–19:35: quality 0.7M33 19:35–00:00: quality 0.8M33 00:00–01:10: quality 1.0M33 01:10–02:30: quality 0.9M33 02:30–03:20: quality 0.8M33 03:20–03:35: quality 0.7M33 03:35–03:50: quality 0.6M33 03:50–04:05: quality 0.5M33 04:05–04:10: quality 0.4observe M33 00:05–02:05scheduleNGC 7000V1057 CygM45M33M31M4218:0020:0022:0000:0002:0004:0006:00

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 0.64
20:05–22:05 V1057 Cyg 2.0 0.72
22:05–00:05 M45 2.0 0.88
00:05–02:05 M33 2.0 0.95
02:05–03:50 M31 1.75 0.72
03:50–05:40 M42 1.83 0.76
05:40–07:15 — nothing worth pointing at — 1.58

Targets

targetastronomyoverallbest windowhighestMoon sep.scheduled h
M31 Andromeda Galaxy 100 unknown 18:40–03:25 (good) 89.5° at 21:20 63.0° 1.75
M42 Great Orion Nebula 89 unknown 23:05–05:30 (good) 42.9° at 02:10 109.9° 1.83
M45 Seven Sisters 100 unknown 19:30–05:30 (good) 72.5° at 00:20 89.3° 2.0
NGC 7000 North America Nebula 75 unknown 18:40–23:30 (good) 87.3° at 17:35 57.5° 2.0
V1057 Cyg 75 unknown 18:40–23:30 (good) 87.3° at 17:35 57.4° 2.0
M33 Triangulum Pinwheel 100 unknown 18:40–03:40 (good) 79.1° at 22:10 64.3° 2.0
💡 API 
curl -sS "https://devops.majbase.com/rozhen-planner/plan-api?targets=M31,M42,M45,NGC%207000&date=2026-11-17"

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"}.