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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, 11 October 2041 · astronomical night 20:18 → 05:57 (9.66 h) · Moon 94% (waning gibbous) · weather: none — the schedule is astronomy only; overall conditions unknown

M31M31 19:15–19:50: quality 0.1M31 19:50–19:55: quality 0.4M31 19:55–20:20: quality 0.3M31 20:20–23:10: quality 0.5M31 23:10–01:35: quality 0.4M31 01:35–06:00: quality 0.3M31 06:00–06:30: quality 0.2observe M31 01:05–02:50M42M42 01:50–02:30: quality 0.2M42 02:30–04:55: quality 0.3M42 04:55–06:00: quality 0.4M42 06:00–06:30: quality 0.2M42 06:30–07:05: quality 0.1observe M42 03:20–05:05M45M45 22:15–22:35: quality 0.2M45 22:35–06:00: quality 0.3M45 06:00–06:30: quality 0.2M45 06:30–07:05: quality 0.1observe M45 05:05–06:00NGC 7000NGC 7000 19:15–19:50: quality 0.2NGC 7000 19:50–19:55: quality 0.5NGC 7000 19:55–20:20: quality 0.4NGC 7000 20:20–20:50: quality 0.8NGC 7000 20:50–23:30: quality 0.7NGC 7000 23:30–01:10: quality 0.6NGC 7000 01:10–02:50: quality 0.5NGC 7000 02:50–03:20: quality 0.4NGC 7000 03:20–03:50: quality 0.3NGC 7000 03:50–03:55: quality 0.2observe NGC 7000 19:50–21:35observe NGC 7000 02:50–03:20V1057 CygV1057 Cyg 19:15–19:50: quality 0.2V1057 Cyg 19:50–19:55: quality 0.5V1057 Cyg 19:55–20:20: quality 0.4V1057 Cyg 20:20–20:50: quality 0.8V1057 Cyg 20:50–23:30: quality 0.7V1057 Cyg 23:30–01:10: quality 0.6V1057 Cyg 01:10–02:50: quality 0.5V1057 Cyg 02:50–03:20: quality 0.4V1057 Cyg 03:20–03:50: quality 0.3V1057 Cyg 03:50–03:55: quality 0.2observe V1057 Cyg 21:35–23:20M33M33 19:35–19:50: quality 0.1M33 19:50–19:55: quality 0.3M33 19:55–20:20: quality 0.2M33 20:20–20:30: quality 0.4M33 20:30–21:25: quality 0.5M33 21:25–00:20: quality 0.4M33 00:20–06:00: quality 0.3M33 06:00–06:20: quality 0.1M33 06:20–06:30: quality 0.2observe M33 23:20–01:05scheduleNGC 7000V1057 CygM33M31M42M4520:0022:0000:0002:0004:0006:00

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
18:45–19:50 — nothing worth pointing at — 1.08
19:50–21:35 NGC 7000 1.75 0.65
21:35–23:20 V1057 Cyg 1.75 0.69
23:20–01:05 M33 1.75 0.36
01:05–02:50 M31 1.75 0.34
02:50–03:20 NGC 7000 0.5 0.4
03:20–05:05 M42 1.75 0.33
05:05–06:00 M45 0.92 0.33
06:00–07:35 — nothing worth pointing at — 1.58

Targets

targetastronomyoverallbest windowhighestMoon sep.scheduled h
M31 Andromeda Galaxy 55 unknown 20:20–06:00 (marginal) 89.5° at 00:45 37.6° 1.75
M42 Great Orion Nebula 14 unknown 02:55–06:00 (marginal) 42.9° at 05:35 44.4° 1.75
M45 Seven Sisters 21 unknown 22:55–01:15 (marginal) 72.5° at 03:45 11.6° 0.92
NGC 7000 North America Nebula 77 unknown 20:20–00:20 (good) 87.2° at 21:00 78.0° 2.25
V1057 Cyg 77 unknown 20:20–00:20 (good) 87.3° at 21:00 78.0° 1.75
M33 Triangulum Pinwheel 41 unknown 20:20–01:45 (marginal) 79.2° at 01:35 23.6° 1.75
💡 API 
curl -sS "https://devops.majbase.com/rozhen-planner/plan-api?targets=M31,M42,M45,NGC%207000&date=2041-10-11"

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"}.