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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 Tuesday, 04 February 2042 · astronomical night 19:15 → 05:54 (10.65 h) · Moon 100% (full moon) · weather: none — the schedule is astronomy only; overall conditions unknown

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

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 0.56
19:50–20:55 M33 1.08 0.7
20:55–22:00 M45 1.08 0.57
22:00–23:50 M42 1.83 0.38
23:50–00:25 M45 0.58 0.37
00:25–05:30 — nothing worth pointing at — 5.08
05:30–05:55 NGC 7000 0.42 0.41
05:55–06:20 — nothing worth pointing at — 0.42
06:20–06:30 NGC 7000 0.17 0.32
06:30–07:30 — nothing worth pointing at — 1.0

Targets

targetastronomyoverallbest windowhighestMoon sep.scheduled h
M31 Andromeda Galaxy 46 unknown 19:20–21:40 (good) 89.6° at 16:05 101.2° 1.08
M42 Great Orion Nebula 30 unknown 19:20–00:05 (marginal) 42.9° at 21:00 59.9° 1.83
M45 Seven Sisters 51 unknown 19:20–21:00 (good) 72.5° at 19:10 74.6° 1.67
NGC 7000 North America Nebula 7 unknown 05:30–05:55 (marginal) 87.2° at 12:20 114.5° 0.58
V1057 Cyg 7 unknown 05:30–05:55 (marginal) 87.2° at 12:25 114.6° 0.0
M33 Triangulum Pinwheel 50 unknown 19:20–21:45 (good) 79.2° at 17:00 99.1° 1.08

Left out

💡 API 
curl -sS "https://devops.majbase.com/rozhen-planner/plan-api?targets=M31,M42,M45,NGC%207000&date=2042-02-04"

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"}.