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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 Saturday, 28 November 2026 · astronomical night 18:31 → 05:47 (11.28 h) · Moon 75% (waning gibbous) · weather: none — the schedule is astronomy only; overall conditions unknown

M31M31 17:25–17:55: quality 0.1M31 17:55–18:00: quality 0.2M31 18:00–18:35: quality 0.5M31 18:35–21:10: quality 1.0M31 21:10–22:25: quality 0.9M31 22:25–00:20: quality 0.8M31 00:20–01:45: quality 0.7M31 01:45–02:25: quality 0.6M31 02:25–02:45: quality 0.5M31 02:45–03:05: quality 0.4M31 03:05–03:15: quality 0.3observe M31 21:50–23:45M42M42 21:40–21:55: quality 0.3M42 21:55–22:20: quality 0.4M42 22:20–22:45: quality 0.5M42 22:45–23:50: quality 0.6M42 23:50–03:30: quality 0.5M42 03:30–04:35: quality 0.4M42 04:35–05:05: quality 0.3M42 05:05–05:15: quality 0.2observe M42 03:35–04:50M45M45 18:05–18:20: quality 0.2M45 18:20–18:35: quality 0.3M45 18:35–18:40: quality 0.6M45 18:40–18:50: quality 0.7M45 18:50–19:40: quality 0.8M45 19:40–21:00: quality 0.9M45 21:00–21:10: quality 1.0M45 21:10–22:30: quality 0.8M45 22:30–01:40: quality 0.7M45 01:40–03:10: quality 0.6M45 03:10–04:30: quality 0.5M45 04:30–04:50: quality 0.4M45 04:50–05:15: quality 0.3observe M45 01:40–03:35observe M45 04:50–05:05NGC 7000NGC 7000 17:25–18:00: quality 0.2NGC 7000 18:00–18:35: quality 0.5NGC 7000 18:35–20:20: quality 1.0NGC 7000 20:20–21:10: quality 0.9NGC 7000 21:10–22:15: quality 0.8NGC 7000 22:15–22:50: quality 0.7NGC 7000 22:50–23:10: quality 0.6NGC 7000 23:10–23:30: quality 0.5NGC 7000 23:30–23:45: quality 0.4observe NGC 7000 18:00–19:55V1057 CygV1057 Cyg 17:25–18:00: quality 0.2V1057 Cyg 18:00–18:35: quality 0.5V1057 Cyg 18:35–20:20: quality 1.0V1057 Cyg 20:20–21:10: quality 0.9V1057 Cyg 21:10–22:15: quality 0.8V1057 Cyg 22:15–22:50: quality 0.7V1057 Cyg 22:50–23:10: quality 0.6V1057 Cyg 23:10–23:30: quality 0.5V1057 Cyg 23:30–23:45: quality 0.4observe V1057 Cyg 19:55–21:50M33M33 17:25–18:00: quality 0.1M33 18:00–18:35: quality 0.5M33 18:35–21:10: quality 1.0M33 21:10–21:55: quality 0.9M33 21:55–00:30: quality 0.8M33 00:30–01:50: quality 0.7M33 01:50–02:40: quality 0.6M33 02:40–03:00: quality 0.5M33 03:00–03:15: quality 0.4M33 03:15–03:25: quality 0.3observe M33 23:45–01:40scheduleNGC 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
18:00–19:55 NGC 7000 1.92 0.85
19:55–21:50 V1057 Cyg 1.92 0.89
21:50–23:45 M31 1.92 0.84
23:45–01:40 M33 1.92 0.73
01:40–03:35 M45 1.92 0.59
03:35–04:50 M42 1.25 0.4
04:50–05:05 M45 0.25 0.33
05:05–07:30 — nothing worth pointing at — 2.42

Targets

targetastronomyoverallbest windowhighestMoon sep.scheduled h
M31 Andromeda Galaxy 100 unknown 18:35–02:15 (good) 89.7° at 20:35 96.4° 1.92
M42 Great Orion Nebula 49 unknown 21:40–04:50 (marginal) 42.9° at 01:25 51.5° 1.25
M45 Seven Sisters 96 unknown 18:35–02:25 (good) 72.5° at 23:40 66.7° 2.17
NGC 7000 North America Nebula 100 unknown 18:35–23:00 (good) 87.3° at 16:50 115.4° 1.92
V1057 Cyg 100 unknown 18:35–23:00 (good) 87.3° at 16:50 115.4° 1.92
M33 Triangulum Pinwheel 100 unknown 18:35–02:30 (good) 79.1° at 21:25 92.6° 1.92
💡 API 
curl -sS "https://devops.majbase.com/rozhen-planner/plan-api?targets=M31,M42,M45,NGC%207000&date=2026-11-28"

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"}.