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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 Wednesday, 07 September 2044 · astronomical night 21:19 → 05:18 (7.98 h) · Moon 100% (full moon) · weather: none — the schedule is astronomy only; overall conditions unknown

M31M31 20:45–20:50: quality 0.1M31 20:50–21:20: quality 0.2M31 21:20–21:25: quality 0.4M31 21:25–21:30: quality 0.5M31 21:30–03:35: quality 0.4M31 03:35–05:20: quality 0.5M31 05:20–05:55: quality 0.3M31 05:55–06:30: quality 0.1observe M31 00:00–01:35M42M42 04:00–04:15: quality 0.3M42 04:15–04:35: quality 0.4M42 04:35–04:55: quality 0.5M42 04:55–05:20: quality 0.6M42 05:20–05:55: quality 0.3M42 05:55–06:30: quality 0.1observe M42 04:45–05:55M45M45 00:25–00:30: quality 0.2M45 00:30–00:55: quality 0.3M45 00:55–01:35: quality 0.4M45 01:35–03:30: quality 0.5M45 03:30–05:20: quality 0.6M45 05:20–05:55: quality 0.3M45 05:55–06:30: quality 0.1observe M45 01:35–03:10NGC 7000NGC 7000 20:15–20:50: quality 0.1NGC 7000 20:50–21:20: quality 0.3NGC 7000 21:20–22:40: quality 0.6NGC 7000 22:40–03:50: quality 0.5NGC 7000 03:50–05:20: quality 0.4NGC 7000 05:20–05:50: quality 0.2NGC 7000 05:50–05:55: quality 0.1observe NGC 7000 20:50–22:25V1057 CygV1057 Cyg 20:15–20:50: quality 0.1V1057 Cyg 20:50–21:20: quality 0.3V1057 Cyg 21:20–22:40: quality 0.6V1057 Cyg 22:40–03:50: quality 0.5V1057 Cyg 03:50–05:20: quality 0.4V1057 Cyg 05:20–05:50: quality 0.2V1057 Cyg 05:50–05:55: quality 0.1observe V1057 Cyg 22:25–00:00M33M33 21:50–22:00: quality 0.2M33 22:00–22:35: quality 0.3M33 22:35–04:00: quality 0.4M33 04:00–05:20: quality 0.5M33 05:20–05:55: quality 0.3M33 05:55–06:30: quality 0.1observe M33 03:10–04:45scheduleNGC 7000V1057 CygM31M45M33M4220:0022:0000:0002:0004:0006:00

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
19:40–20:50 — nothing worth pointing at — 1.17
20:50–22:25 NGC 7000 1.58 0.5
22:25–00:00 V1057 Cyg 1.58 0.53
00:00–01:35 M31 1.58 0.43
01:35–03:10 M45 1.58 0.49
03:10–04:45 M33 1.58 0.45
04:45–05:55 M42 1.17 0.44
05:55–06:55 — nothing worth pointing at — 1.0

Targets

targetastronomyoverallbest windowhighestMoon sep.scheduled h
M31 Andromeda Galaxy 51 unknown 21:20–05:20 (marginal) 89.8° at 02:55 47.2° 1.58
M42 Great Orion Nebula 13 unknown 05:15–05:20 (good) 42.9° at 07:45 92.0° 1.17
M45 Seven Sisters 42 unknown 04:30–05:20 (good) 72.6° at 06:00 68.5° 1.58
NGC 7000 North America Nebula 61 unknown 21:20–21:35 (good) 87.2° at 23:10 57.3° 1.58
V1057 Cyg 61 unknown 21:20–21:35 (good) 87.2° at 23:10 57.3° 1.58
M33 Triangulum Pinwheel 41 unknown 22:20–05:20 (marginal) 79.2° at 03:45 45.0° 1.58

💡 API
curl -sS "https://devops.majbase.com/rozhen-planner/plan-api?targets=M31,M42,M45,NGC%207000&date=2044-09-07"

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"}.