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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, 05 February 2031 · astronomical night 19:15 → 05:53 (10.63 h) · Moon 97% (full moon) · weather: none — the schedule is astronomy only; overall conditions unknown

M31M31 18:15–18:45: quality 0.1M31 18:45–19:20: quality 0.4M31 19:20–20:05: quality 0.7M31 20:05–21:40: quality 0.6M31 21:40–22:00: quality 0.5M31 22:00–22:25: quality 0.4M31 22:25–22:45: quality 0.3observe M31 18:45–19:50M42M42 18:15–18:45: quality 0.1M42 18:45–19:20: quality 0.2M42 19:20–20:35: quality 0.4M42 20:35–23:50: quality 0.3M42 23:50–00:40: quality 0.2M42 00:40–00:45: quality 0.1observe M42 22:00–22:15M45M45 18:15–18:45: quality 0.1M45 18:45–19:20: quality 0.3M45 19:20–19:25: quality 0.6M45 19:25–21:45: quality 0.5M45 21:45–23:55: quality 0.4M45 23:55–00:25: quality 0.3M45 00:25–00:45: quality 0.2observe M45 20:55–22:00observe M45 22:45–00:10NGC 7000NGC 7000 18:15–18:45: quality 0.1NGC 7000 18:45–19:15: quality 0.2NGC 7000 05:25–05:45: quality 0.4NGC 7000 05:45–05:55: quality 0.5NGC 7000 05:55–06:25: quality 0.3NGC 7000 06:25–06:30: quality 0.4NGC 7000 06:30–07:00: quality 0.1observe NGC 7000 05:25–05:55observe NGC 7000 06:10–06:30V1057 CygV1057 Cyg 18:15–18:45: quality 0.1V1057 Cyg 18:45–19:15: quality 0.2V1057 Cyg 05:25–05:45: quality 0.4V1057 Cyg 05:45–05:55: quality 0.5V1057 Cyg 05:55–06:25: quality 0.3V1057 Cyg 06:25–06:30: quality 0.4V1057 Cyg 06:30–07:00: quality 0.1M33M33 18:15–18:45: quality 0.1M33 18:45–19:20: quality 0.4M33 19:20–19:55: quality 0.7M33 19:55–21:25: quality 0.6M33 21:25–22:10: quality 0.5M33 22:10–22:35: quality 0.4M33 22:35–22:55: quality 0.3observe M33 19:50–20:55observe M33 22:15–22:45scheduleM31M33M45M4518:0020:0022:0000:0002:0004:0006:00

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
17:40–18:45 — nothing worth pointing at — 1.08
18:45–19:50 M31 1.08 0.51
19:50–20:55 M33 1.08 0.62
20:55–22:00 M45 1.08 0.47
22:00–22:15 M42 0.25 0.3
22:15–22:45 M33 0.5 0.37
22:45–00:10 M45 1.42 0.37
00:10–05:25 — nothing worth pointing at — 5.25
05:25–05:55 NGC 7000 0.5 0.44
05:55–06:10 — nothing worth pointing at — 0.25
06:10–06:30 NGC 7000 0.33 0.34
06:30–07:30 — nothing worth pointing at — 1.0

Targets

targetastronomyoverallbest windowhighestMoon sep.scheduled h
M31 Andromeda Galaxy 38 unknown 19:20–20:50 (good) 89.6° at 16:05 93.2° 1.08
M42 Great Orion Nebula 17 unknown 19:20–22:15 (marginal) 42.9° at 20:55 42.1° 0.25
M45 Seven Sisters 35 unknown 19:20–00:10 (marginal) 72.5° at 19:05 59.8° 2.5
NGC 7000 North America Nebula 8 unknown 05:25–05:55 (marginal) 87.2° at 12:20 117.9° 0.83
V1057 Cyg 8 unknown 05:25–05:55 (marginal) 87.3° at 12:20 118.0° 0.0
M33 Triangulum Pinwheel 38 unknown 19:20–20:40 (good) 79.1° at 16:55 87.4° 1.58

Left out


💡 API
curl -sS "https://devops.majbase.com/rozhen-planner/plan-api?targets=M31,M42,M45,NGC%207000&date=2031-02-05"

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"}.