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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, 28 September 2029 · astronomical night 20:40 → 05:43 (9.05 h) · Moon 69% (waning gibbous) · weather: none — the schedule is astronomy only; overall conditions unknown

M31M31 19:40–20:10: quality 0.1M31 20:10–20:45: quality 0.4M31 20:45–22:10: quality 0.9M31 22:10–22:30: quality 0.7M31 22:30–23:05: quality 0.8M31 23:05–01:50: quality 0.7M31 01:50–05:05: quality 0.6M31 05:05–05:45: quality 0.5M31 05:45–06:15: quality 0.3M31 06:15–06:20: quality 0.2M31 06:20–06:50: quality 0.1observe M31 23:30–01:10M42M42 02:40–02:50: quality 0.2M42 02:50–03:25: quality 0.3M42 03:25–05:45: quality 0.4M42 05:45–06:20: quality 0.2M42 06:20–06:50: quality 0.1observe M42 04:30–05:45M45M45 23:05–23:20: quality 0.3M45 23:20–23:45: quality 0.4M45 23:45–05:45: quality 0.5M45 05:45–06:20: quality 0.2M45 06:20–06:50: quality 0.1observe M45 02:50–04:30NGC 7000NGC 7000 19:40–20:10: quality 0.2NGC 7000 20:10–20:45: quality 0.5NGC 7000 20:45–22:10: quality 1.0NGC 7000 22:10–23:25: quality 0.9NGC 7000 23:25–01:35: quality 0.8NGC 7000 01:35–03:05: quality 0.7NGC 7000 03:05–03:50: quality 0.6NGC 7000 03:50–04:10: quality 0.5NGC 7000 04:10–04:35: quality 0.4NGC 7000 04:35–04:45: quality 0.3observe NGC 7000 20:10–21:50V1057 CygV1057 Cyg 19:40–20:10: quality 0.2V1057 Cyg 20:10–20:45: quality 0.5V1057 Cyg 20:45–22:10: quality 1.0V1057 Cyg 22:10–23:25: quality 0.9V1057 Cyg 23:25–01:35: quality 0.8V1057 Cyg 01:35–03:05: quality 0.7V1057 Cyg 03:05–03:50: quality 0.6V1057 Cyg 03:50–04:10: quality 0.5V1057 Cyg 04:10–04:35: quality 0.4V1057 Cyg 04:35–04:45: quality 0.3observe V1057 Cyg 21:50–23:30M33M33 20:30–20:45: quality 0.2M33 20:45–20:50: quality 0.5M33 20:50–21:05: quality 0.6M33 21:05–21:20: quality 0.7M33 21:20–22:05: quality 0.8M33 22:05–22:10: quality 0.9M33 22:10–22:15: quality 0.6M33 22:15–00:50: quality 0.7M33 00:50–04:00: quality 0.6M33 04:00–05:45: quality 0.5M33 05:45–06:20: quality 0.2M33 06:20–06:50: quality 0.1observe M33 01:10–02:50scheduleNGC 7000V1057 CygM31M33M45M4220:0022:0000:0002:0004:0006:00

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
19:05–20:10 — nothing worth pointing at — 1.08
20:10–21:50 NGC 7000 1.67 0.82
21:50–23:30 V1057 Cyg 1.67 0.89
23:30–01:10 M31 1.67 0.7
01:10–02:50 M33 1.67 0.61
02:50–04:30 M45 1.67 0.5
04:30–05:45 M42 1.25 0.41
05:45–07:20 — nothing worth pointing at — 1.58

Targets

targetastronomyoverallbest windowhighestMoon sep.scheduled h
M31 Andromeda Galaxy 94 unknown 20:45–03:45 (good) 89.6° at 01:35 53.9° 1.67
M42 Great Orion Nebula 13 unknown 03:10–05:45 (marginal) 42.9° at 06:25 31.1° 1.25
M45 Seven Sisters 45 unknown 23:10–05:45 (marginal) 72.5° at 04:35 14.7° 1.67
NGC 7000 North America Nebula 100 unknown 20:45–03:40 (good) 87.2° at 21:50 91.5° 1.67
V1057 Cyg 100 unknown 20:45–03:40 (good) 87.3° at 21:50 91.5° 1.67
M33 Triangulum Pinwheel 85 unknown 20:55–02:10 (good) 79.1° at 02:25 44.0° 1.67
💡 API 
curl -sS "https://devops.majbase.com/rozhen-planner/plan-api?targets=M31,M42,M45,NGC%207000&date=2029-09-28"

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"}.