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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, 27 November 2026 · astronomical night 18:31 → 05:46 (11.26 h) · Moon 84% (waning gibbous) · weather: none — the schedule is astronomy only; overall conditions unknown

M31M31 17:25–18:00: quality 0.1M31 18:00–18:35: quality 0.5M31 18:35–19:50: quality 1.0M31 19:50–22:20: quality 0.8M31 22:20–00:20: quality 0.7M31 00:20–01:55: quality 0.6M31 01:55–02:35: quality 0.5M31 02:35–03:00: quality 0.4M31 03:00–03:20: quality 0.3observe M31 21:40–23:30M42M42 21:45–21:50: quality 0.2M42 21:50–22:15: quality 0.3M42 22:15–03:15: quality 0.4M42 03:15–04:50: quality 0.3M42 04:50–05:20: quality 0.2observe M42 03:10–04:30M45M45 18:10–18:20: quality 0.2M45 18:20–18:35: quality 0.3M45 18:35–18:45: quality 0.6M45 18:45–18:55: quality 0.7M45 18:55–19:45: quality 0.8M45 19:45–19:50: quality 0.9M45 19:50–23:55: quality 0.6M45 23:55–02:30: quality 0.5M45 02:30–04:35: quality 0.4M45 04:35–05:05: quality 0.3M45 05:05–05:20: quality 0.2observe M45 01:20–03:10observe M45 04:30–04:50NGC 7000NGC 7000 17:25–18:00: quality 0.2NGC 7000 18:00–18:35: quality 0.5NGC 7000 18:35–19:50: quality 1.0NGC 7000 19:50–20:20: quality 0.9NGC 7000 20:20–21:40: quality 0.8NGC 7000 21:40–22:45: quality 0.7NGC 7000 22:45–23:05: quality 0.6NGC 7000 23:05–23:25: quality 0.5NGC 7000 23:25–23:45: quality 0.4NGC 7000 23:45–23:50: quality 0.3observe NGC 7000 18:00–19:50V1057 CygV1057 Cyg 17:25–18:00: quality 0.2V1057 Cyg 18:00–18:35: quality 0.5V1057 Cyg 18:35–19:50: quality 1.0V1057 Cyg 19:50–20:20: quality 0.9V1057 Cyg 20:20–21:40: quality 0.8V1057 Cyg 21:40–22:45: quality 0.7V1057 Cyg 22:45–23:05: quality 0.6V1057 Cyg 23:05–23:25: quality 0.5V1057 Cyg 23:25–23:45: quality 0.4V1057 Cyg 23:45–23:50: quality 0.3observe V1057 Cyg 19:50–21:40M33M33 17:25–18:00: quality 0.1M33 18:00–18:35: quality 0.5M33 18:35–19:50: quality 1.0M33 19:50–21:40: quality 0.8M33 21:40–00:15: quality 0.7M33 00:15–01:45: quality 0.6M33 01:45–02:45: quality 0.5M33 02:45–03:05: quality 0.4M33 03:05–03:30: quality 0.3observe M33 23:30–01:20scheduleNGC 7000V1057 CygM31M33M45M4218:0020:0022:0000:0002:0004:0006:00

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
18:00–19:50 NGC 7000 1.83 0.84
19:50–21:40 V1057 Cyg 1.83 0.82
21:40–23:30 M31 1.83 0.74
23:30–01:20 M33 1.83 0.64
01:20–03:10 M45 1.83 0.46
03:10–04:30 M42 1.33 0.34
04:30–04:50 M45 0.33 0.33
04:50–07:30 — nothing worth pointing at — 2.67

Targets

targetastronomyoverallbest windowhighestMoon sep.scheduled h
M31 Andromeda Galaxy 100 unknown 18:35–01:05 (good) 89.6° at 20:40 83.6° 1.83
M42 Great Orion Nebula 30 unknown 22:00–04:30 (marginal) 42.9° at 01:30 41.9° 1.33
M45 Seven Sisters 86 unknown 18:35–22:40 (good) 72.5° at 23:40 52.1° 2.17
NGC 7000 North America Nebula 100 unknown 18:35–22:55 (good) 87.3° at 16:55 108.8° 1.83
V1057 Cyg 100 unknown 18:35–22:55 (good) 87.3° at 16:55 108.9° 1.83
M33 Triangulum Pinwheel 100 unknown 18:35–01:00 (good) 79.1° at 21:30 78.4° 1.83
💡 API 
curl -sS "https://devops.majbase.com/rozhen-planner/plan-api?targets=M31,M42,M45,NGC%207000&date=2026-11-27"

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"}.