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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 Sunday, 13 October 2030 · astronomical night 20:15 → 05:59 (9.74 h) · Moon 94% (waning gibbous) · weather: none — the schedule is astronomy only; overall conditions unknown

M31M31 19:15–19:45: quality 0.1M31 19:45–20:20: quality 0.3M31 20:20–22:55: quality 0.5M31 22:55–01:10: quality 0.4M31 01:10–06:00: quality 0.3M31 06:00–06:25: quality 0.2M31 06:25–06:35: quality 0.1observe M31 01:00–02:45M42M42 01:40–02:25: quality 0.2M42 02:25–04:50: quality 0.3M42 04:50–06:00: quality 0.4M42 06:00–06:35: quality 0.2M42 06:35–07:05: quality 0.1observe M42 03:15–05:00M45M45 22:05–22:30: quality 0.2M45 22:30–06:00: quality 0.3M45 06:00–06:35: quality 0.2M45 06:35–07:05: quality 0.1observe M45 05:00–06:00NGC 7000NGC 7000 19:15–19:40: quality 0.2NGC 7000 19:40–19:45: quality 0.1NGC 7000 19:45–20:20: quality 0.4NGC 7000 20:20–20:30: quality 0.8NGC 7000 20:30–23:10: quality 0.7NGC 7000 23:10–00:55: quality 0.6NGC 7000 00:55–02:45: quality 0.5NGC 7000 02:45–03:10: quality 0.4NGC 7000 03:10–03:40: quality 0.3NGC 7000 03:40–03:45: quality 0.2observe NGC 7000 19:45–21:30observe NGC 7000 02:45–03:15V1057 CygV1057 Cyg 19:15–19:40: quality 0.2V1057 Cyg 19:40–19:45: quality 0.1V1057 Cyg 19:45–20:20: quality 0.4V1057 Cyg 20:20–20:30: quality 0.8V1057 Cyg 20:30–23:10: quality 0.7V1057 Cyg 23:10–00:55: quality 0.6V1057 Cyg 00:55–02:45: quality 0.5V1057 Cyg 02:45–03:10: quality 0.4V1057 Cyg 03:10–03:40: quality 0.3V1057 Cyg 03:40–03:45: quality 0.2observe V1057 Cyg 21:30–23:15M33M33 19:30–19:40: quality 0.1M33 19:45–20:20: quality 0.2M33 20:20–20:25: quality 0.4M33 20:25–21:00: quality 0.5M33 21:00–00:05: quality 0.4M33 00:05–06:00: quality 0.3M33 06:00–06:25: quality 0.1M33 06:25–06:30: quality 0.2M33 06:30–06:35: quality 0.1observe M33 23:15–01:00scheduleNGC 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
18:40–19:45 — nothing worth pointing at — 1.08
19:45–21:30 NGC 7000 1.75 0.62
21:30–23:15 V1057 Cyg 1.75 0.68
23:15–01:00 M33 1.75 0.35
01:00–02:45 M31 1.75 0.33
02:45–03:15 NGC 7000 0.5 0.39
03:15–05:00 M42 1.75 0.33
05:00–06:00 M45 1.0 0.33
06:00–07:35 — nothing worth pointing at — 1.58

Targets

targetastronomyoverallbest windowhighestMoon sep.scheduled h
M31 Andromeda Galaxy 54 unknown 20:20–06:00 (marginal) 89.7° at 00:35 37.1° 1.75
M42 Great Orion Nebula 14 unknown 02:50–06:00 (marginal) 42.9° at 05:25 44.9° 1.75
M45 Seven Sisters 21 unknown 22:50–00:35 (marginal) 72.5° at 03:40 11.4° 1.0
NGC 7000 North America Nebula 76 unknown 20:20–00:10 (good) 87.2° at 20:50 77.5° 2.25
V1057 Cyg 76 unknown 20:20–00:10 (good) 87.3° at 20:50 77.5° 1.75
M33 Triangulum Pinwheel 40 unknown 20:20–01:20 (marginal) 79.1° at 01:25 23.2° 1.75
💡 API 
curl -sS "https://devops.majbase.com/rozhen-planner/plan-api?targets=M31,M42,M45,NGC%207000&date=2030-10-13"

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"}.