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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, 01 February 2045 · astronomical night 19:12 → 05:56 (10.74 h) · Moon 100% (full moon) · weather: none — the schedule is astronomy only; overall conditions unknown

M31M31 18:10–18:40: quality 0.1M31 18:40–19:15: quality 0.4M31 19:15–19:50: quality 0.8M31 19:50–21:10: quality 0.7M31 21:10–22:05: quality 0.6M31 22:05–22:25: quality 0.5M31 22:25–22:45: quality 0.4M31 22:45–23:00: quality 0.3observe M31 18:40–19:45M42M42 18:10–18:40: quality 0.1M42 18:40–19:15: quality 0.3M42 19:15–21:05: quality 0.5M42 21:05–23:40: quality 0.4M42 23:40–00:30: quality 0.3M42 00:30–01:00: quality 0.2observe M42 21:55–00:00M45M45 18:10–18:40: quality 0.1M45 18:40–19:15: quality 0.3M45 19:15–19:50: quality 0.7M45 19:50–22:00: quality 0.6M45 22:00–23:40: quality 0.5M45 23:40–00:25: quality 0.4M45 00:25–00:50: quality 0.3M45 00:50–01:00: quality 0.2observe M45 20:50–21:55observe M45 00:00–00:35NGC 7000NGC 7000 18:10–18:40: quality 0.1NGC 7000 18:40–19:00: quality 0.3NGC 7000 19:00–19:15: quality 0.2NGC 7000 19:15–19:30: quality 0.4NGC 7000 05:40–06:00: quality 0.4NGC 7000 06:00–06:10: quality 0.2NGC 7000 06:10–06:30: quality 0.3NGC 7000 06:30–07:05: quality 0.1observe NGC 7000 05:40–06:00observe NGC 7000 06:25–06:30V1057 CygV1057 Cyg 18:10–18:40: quality 0.1V1057 Cyg 18:40–19:00: quality 0.3V1057 Cyg 19:00–19:15: quality 0.2V1057 Cyg 19:15–19:30: quality 0.4V1057 Cyg 05:40–06:00: quality 0.4V1057 Cyg 06:00–06:10: quality 0.2V1057 Cyg 06:10–06:30: quality 0.3V1057 Cyg 06:30–07:05: quality 0.1M33M33 18:10–18:40: quality 0.1M33 18:40–19:15: quality 0.4M33 19:15–20:00: quality 0.8M33 20:00–21:15: quality 0.7M33 21:15–22:20: quality 0.6M33 22:20–22:40: quality 0.5M33 22:40–22:55: quality 0.4M33 22:55–23:10: quality 0.3observe M33 19:45–20:50scheduleM31M33M45M4218:0020:0022:0000:0002:0004:0006:00

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
17:35–18:40 — nothing worth pointing at — 1.08
18:40–19:45 M31 1.08 0.58
19:45–20:50 M33 1.08 0.73
20:50–21:55 M45 1.08 0.59
21:55–00:00 M42 2.08 0.38
00:00–00:35 M45 0.58 0.38
00:35–05:40 — nothing worth pointing at — 5.08
05:40–06:00 NGC 7000 0.33 0.41
06:00–06:25 — nothing worth pointing at — 0.42
06:25–06:30 NGC 7000 0.08 0.3
06:30–07:35 — nothing worth pointing at — 1.08

Targets

targetastronomyoverallbest windowhighestMoon sep.scheduled h
M31 Andromeda Galaxy 52 unknown 19:15–21:55 (good) 89.5° at 16:15 102.8° 1.08
M42 Great Orion Nebula 31 unknown 19:15–00:10 (marginal) 42.9° at 21:10 57.7° 2.08
M45 Seven Sisters 55 unknown 19:15–21:15 (good) 72.6° at 19:20 74.5° 1.67
NGC 7000 North America Nebula 7 unknown 05:40–06:00 (marginal) 87.2° at 12:35 117.6° 0.42
V1057 Cyg 7 unknown 05:40–06:00 (marginal) 87.2° at 12:35 117.7° 0.0
M33 Triangulum Pinwheel 55 unknown 19:15–22:00 (good) 79.2° at 17:10 100.0° 1.08

Left out

💡 API 
curl -sS "https://devops.majbase.com/rozhen-planner/plan-api?targets=M31,M42,M45,NGC%207000&date=2045-02-01"

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"}.