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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, 27 August 2029 · astronomical night 21:42 → 05:03 (7.35 h) · Moon 86% (waning gibbous) · weather: none — the schedule is astronomy only; overall conditions unknown

M31M31 21:05–21:10: quality 0.1M31 21:10–21:45: quality 0.2M31 21:45–21:55: quality 0.4M31 21:55–23:55: quality 0.5M31 23:55–05:05: quality 0.4M31 05:05–05:40: quality 0.2M31 05:40–06:15: quality 0.1observe M31 23:50–01:10M42M42 04:45–04:50: quality 0.2M42 04:50–05:05: quality 0.3M42 05:05–05:40: quality 0.2M42 05:40–06:15: quality 0.1observe M42 05:00–05:05M45M45 01:10–01:25: quality 0.2M45 01:25–02:00: quality 0.3M45 02:00–05:05: quality 0.4M45 05:05–05:40: quality 0.2M45 05:40–06:15: quality 0.1observe M45 02:30–05:00NGC 7000NGC 7000 20:35–21:10: quality 0.1NGC 7000 21:10–21:15: quality 0.5NGC 7000 21:15–21:45: quality 0.4NGC 7000 21:45–23:25: quality 0.7NGC 7000 23:25–02:25: quality 0.6NGC 7000 02:25–05:05: quality 0.5NGC 7000 05:05–05:40: quality 0.2NGC 7000 05:40–06:15: quality 0.1observe NGC 7000 21:10–22:30V1057 CygV1057 Cyg 20:35–21:10: quality 0.1V1057 Cyg 21:10–21:15: quality 0.5V1057 Cyg 21:15–21:45: quality 0.4V1057 Cyg 21:45–23:25: quality 0.7V1057 Cyg 23:25–02:25: quality 0.6V1057 Cyg 02:25–05:05: quality 0.5V1057 Cyg 05:05–05:40: quality 0.2V1057 Cyg 05:40–06:15: quality 0.1observe V1057 Cyg 22:30–23:50M33M33 22:35–22:40: quality 0.2M33 22:40–23:10: quality 0.3M33 23:10–05:05: quality 0.4M33 05:05–05:40: quality 0.2M33 05:40–06:15: quality 0.1observe M33 01:10–02:30scheduleNGC 7000V1057 CygM31M33M4522:0000:0002:0004:0006:00

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
20:00–21:10 — nothing worth pointing at — 1.17
21:10–22:30 NGC 7000 1.33 0.57
22:30–23:50 V1057 Cyg 1.33 0.66
23:50–01:10 M31 1.33 0.44
01:10–02:30 M33 1.33 0.39
02:30–05:00 M45 2.5 0.39
05:00–05:05 M42 0.08 0.3
05:05–06:45 — nothing worth pointing at — 1.67

Targets

targetastronomyoverallbest windowhighestMoon sep.scheduled h
M31 Andromeda Galaxy 39 unknown 21:45–05:05 (marginal) 89.7° at 03:40 29.8° 1.33
M42 Great Orion Nebula 2 unknown 05:00–05:05 (marginal) 42.9° at 08:30 70.5° 0.08
M45 Seven Sisters 17 unknown 01:45–05:05 (marginal) 72.5° at 06:45 41.2° 2.5
NGC 7000 North America Nebula 73 unknown 21:45–00:40 (good) 87.2° at 23:55 60.8° 1.33
V1057 Cyg 73 unknown 21:45–00:40 (good) 87.3° at 23:55 60.8° 1.33
M33 Triangulum Pinwheel 26 unknown 22:55–05:05 (marginal) 79.1° at 04:30 20.5° 1.33
💡 API 
curl -sS "https://devops.majbase.com/rozhen-planner/plan-api?targets=M31,M42,M45,NGC%207000&date=2029-08-27"

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"}.