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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, 29 October 2039 · astronomical night 19:53 → 05:16 (10.38 h) · Moon 96% (waxing gibbous) · weather: none — the schedule is astronomy only; overall conditions unknown

M31M31 18:50–19:25: quality 0.1M31 19:25–19:55: quality 0.2M31 19:55–21:10: quality 0.5M31 21:10–02:55: quality 0.4M31 02:55–04:20: quality 0.5M31 04:20–04:50: quality 0.4M31 04:50–04:55: quality 0.3M31 04:55–05:05: quality 0.5M31 05:05–05:15: quality 0.4observe M31 23:15–01:10M42M42 00:40–00:45: quality 0.2M42 00:45–01:10: quality 0.3M42 01:10–01:40: quality 0.4M42 01:40–03:10: quality 0.5M42 03:10–04:55: quality 0.6M42 04:55–05:10: quality 0.9M42 05:10–05:20: quality 0.8M42 05:20–05:50: quality 0.4M42 05:50–06:25: quality 0.1observe M42 03:05–04:00M45M45 21:05–21:20: quality 0.2M45 21:20–21:50: quality 0.3M45 21:50–01:15: quality 0.4M45 01:15–03:45: quality 0.5M45 03:45–04:55: quality 0.6M45 04:55–05:20: quality 0.9M45 05:20–05:50: quality 0.4M45 05:50–06:25: quality 0.1observe M45 01:10–03:05observe M45 05:20–05:50NGC 7000NGC 7000 18:50–19:25: quality 0.1NGC 7000 19:25–19:55: quality 0.3NGC 7000 19:55–22:50: quality 0.6NGC 7000 22:50–01:40: quality 0.5NGC 7000 01:40–02:10: quality 0.4NGC 7000 02:10–02:45: quality 0.3observe NGC 7000 19:25–21:20V1057 CygV1057 Cyg 18:50–19:25: quality 0.1V1057 Cyg 19:25–19:55: quality 0.3V1057 Cyg 19:55–22:50: quality 0.6V1057 Cyg 22:50–01:40: quality 0.5V1057 Cyg 01:40–02:10: quality 0.4V1057 Cyg 02:10–02:40: quality 0.3V1057 Cyg 02:40–02:45: quality 0.2observe V1057 Cyg 21:20–23:15M33M33 19:05–19:25: quality 0.1M33 19:25–19:55: quality 0.2M33 19:55–22:35: quality 0.4M33 22:35–01:00: quality 0.3M33 01:00–03:25: quality 0.4M33 03:25–04:35: quality 0.5M33 04:35–04:55: quality 0.4M33 04:55–05:05: quality 0.6M33 05:05–05:20: quality 0.5M33 05:20–05:25: quality 0.2observe M33 04:00–05:20scheduleNGC 7000V1057 CygM31M45M42M3320:0022:0000:0002:0004:0006:00

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
18:15–19:25 — nothing worth pointing at — 1.17
19:25–21:20 NGC 7000 1.92 0.54
21:20–23:15 V1057 Cyg 1.92 0.57
23:15–01:10 M31 1.92 0.4
01:10–03:05 M45 1.92 0.48
03:05–04:00 M42 1.92 0.59
04:00–05:20 M33 1.33 0.47
05:20–05:50 M45 0.5 0.43
05:50–06:55 — nothing worth pointing at — 1.08

Targets

targetastronomyoverallbest windowhighestMoon sep.scheduled h
M31 Andromeda Galaxy 51 unknown 19:55–05:15 (marginal) 89.7° at 23:35 40.4° 1.92
M42 Great Orion Nebula 73 unknown 03:15–05:20 (good) 42.9° at 03:25 70.2° 1.92
M45 Seven Sisters 90 unknown 03:50–05:20 (good) 72.5° at 02:35 47.4° 2.42
NGC 7000 North America Nebula 60 unknown 19:55–21:05 (good) 87.2° at 19:50 67.7° 1.92
V1057 Cyg 60 unknown 19:55–21:00 (good) 87.3° at 19:50 67.6° 1.92
M33 Triangulum Pinwheel 60 unknown 19:55–05:20 (marginal) 79.2° at 00:25 31.0° 1.33
💡 API 
curl -sS "https://devops.majbase.com/rozhen-planner/plan-api?targets=M31,M42,M45,NGC%207000&date=2039-10-29"

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"}.