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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 Thursday, 18 October 2035 · astronomical night 20:08 → 06:04 (9.94 h) · Moon 96% (waning gibbous) · weather: none — the schedule is astronomy only; overall conditions unknown

M31M31 19:05–19:40: quality 0.1M31 19:40–19:55: quality 0.4M31 19:55–20:10: quality 0.3M31 20:10–21:45: quality 0.6M31 21:45–23:35: quality 0.5M31 23:35–04:10: quality 0.4M31 04:10–05:50: quality 0.3M31 05:50–05:55: quality 0.4M31 05:55–06:05: quality 0.3M31 06:05–06:15: quality 0.2M31 06:15–06:40: quality 0.1observe M31 23:10–00:50observe M31 01:30–02:00observe M31 03:15–03:45M42M42 01:25–02:15: quality 0.2M42 02:15–05:20: quality 0.3M42 05:20–06:05: quality 0.4M42 06:05–06:40: quality 0.2M42 06:40–07:10: quality 0.1observe M42 03:45–05:30M45M45 21:45–22:05: quality 0.2M45 22:05–06:00: quality 0.3M45 06:00–06:05: quality 0.4M45 06:05–06:40: quality 0.2M45 06:40–07:10: quality 0.1observe M45 05:30–06:05NGC 7000NGC 7000 19:05–19:40: quality 0.2NGC 7000 19:40–19:55: quality 0.5NGC 7000 19:55–20:10: quality 0.4NGC 7000 20:10–21:15: quality 0.8NGC 7000 21:15–23:45: quality 0.7NGC 7000 23:45–01:20: quality 0.6NGC 7000 01:20–02:35: quality 0.5NGC 7000 02:35–03:00: quality 0.4NGC 7000 03:00–03:30: quality 0.3observe NGC 7000 19:40–21:25observe NGC 7000 02:00–03:15V1057 CygV1057 Cyg 19:05–19:40: quality 0.2V1057 Cyg 19:40–19:55: quality 0.5V1057 Cyg 19:55–20:10: quality 0.4V1057 Cyg 20:10–21:15: quality 0.8V1057 Cyg 21:15–23:45: quality 0.7V1057 Cyg 23:45–01:20: quality 0.6V1057 Cyg 01:20–02:35: quality 0.5V1057 Cyg 02:35–03:00: quality 0.4V1057 Cyg 03:00–03:30: quality 0.3observe V1057 Cyg 21:25–23:10M33M33 19:10–19:40: quality 0.1M33 19:40–19:55: quality 0.3M33 19:55–20:10: quality 0.2M33 20:10–21:45: quality 0.5M33 21:45–00:05: quality 0.4M33 00:05–06:05: quality 0.3M33 06:05–06:15: quality 0.2M33 06:15–06:40: quality 0.1observe M33 00:50–01:30scheduleNGC 7000V1057 CygM31NGC 7000M4220:0022:0000:0002:0004:0006:00

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
18:35–19:40 — nothing worth pointing at — 1.08
19:40–21:25 NGC 7000 1.75 0.68
21:25–23:10 V1057 Cyg 1.75 0.71
23:10–00:50 M31 1.67 0.43
00:50–01:30 M33 0.67 0.31
01:30–02:00 M31 0.5 0.38
02:00–03:15 NGC 7000 1.25 0.43
03:15–03:45 M31 0.5 0.36
03:45–05:30 M42 1.75 0.33
05:30–06:05 M45 0.58 0.35
06:05–07:40 — nothing worth pointing at — 1.58

Targets

targetastronomyoverallbest windowhighestMoon sep.scheduled h
M31 Andromeda Galaxy 58 unknown 20:10–06:05 (marginal) 89.6° at 00:15 43.3° 2.67
M42 Great Orion Nebula 14 unknown 03:40–06:05 (marginal) 42.9° at 05:10 39.8° 1.75
M45 Seven Sisters 24 unknown 22:25–01:30 (marginal) 72.5° at 03:20 13.9° 0.58
NGC 7000 North America Nebula 79 unknown 20:10–00:30 (good) 87.2° at 20:35 83.5° 3.0
V1057 Cyg 79 unknown 20:10–00:30 (good) 87.3° at 20:35 83.5° 1.75
M33 Triangulum Pinwheel 45 unknown 20:10–01:30 (marginal) 79.1° at 01:10 28.9° 0.67
💡 API 
curl -sS "https://devops.majbase.com/rozhen-planner/plan-api?targets=M31,M42,M45,NGC%207000&date=2035-10-18"

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"}.