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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 Sunday, 22 January 2040 · astronomical night 19:00 → 06:04 (11.07 h) · Moon 68% (waxing gibbous) · weather: none — the schedule is astronomy only; overall conditions unknown

M31M31 17:55–18:30: quality 0.1M31 18:30–19:05: quality 0.3M31 19:05–22:45: quality 0.5M31 22:45–23:15: quality 0.4M31 23:15–23:40: quality 0.3observe M31 20:05–21:15M42M42 18:30–19:05: quality 0.2M42 19:05–20:10: quality 0.4M42 20:10–01:00: quality 0.5M42 01:00–01:25: quality 0.4M42 01:25–01:40: quality 0.3observe M42 23:35–01:35M45M45 17:55–18:30: quality 0.1M45 18:30–19:05: quality 0.2M45 19:05–01:00: quality 0.5M45 01:00–01:25: quality 0.4M45 01:25–01:40: quality 0.3observe M45 22:25–23:35NGC 7000NGC 7000 17:55–18:30: quality 0.1NGC 7000 18:30–19:05: quality 0.3NGC 7000 19:05–19:10: quality 0.6NGC 7000 19:10–19:30: quality 0.5NGC 7000 19:30–19:55: quality 0.4NGC 7000 19:55–20:10: quality 0.3NGC 7000 06:20–06:40: quality 0.2NGC 7000 06:40–07:15: quality 0.1observe NGC 7000 18:30–18:40observe NGC 7000 19:05–20:05V1057 CygV1057 Cyg 17:55–18:30: quality 0.1V1057 Cyg 18:30–19:05: quality 0.3V1057 Cyg 19:05–19:10: quality 0.6V1057 Cyg 19:10–19:30: quality 0.5V1057 Cyg 19:30–19:55: quality 0.4V1057 Cyg 19:55–20:10: quality 0.3V1057 Cyg 06:20–06:40: quality 0.2V1057 Cyg 06:40–07:15: quality 0.1M33M33 17:55–18:30: quality 0.1M33 18:30–19:05: quality 0.2M33 19:05–22:20: quality 0.5M33 22:20–23:20: quality 0.4M33 23:20–23:50: quality 0.3observe M33 21:15–22:25scheduleNGC 7000M31M33M45M4218:0020:0022:0000:0002:0004:0006:00

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
17:20–18:30 — nothing worth pointing at — 1.17
18:30–18:40 NGC 7000 0.17 0.3
18:40–19:05 — nothing worth pointing at — 0.42
19:05–20:05 NGC 7000 1.0 0.44
20:05–21:15 M31 1.17 0.51
21:15–22:25 M33 1.17 0.46
22:25–23:35 M45 1.17 0.52
23:35–01:35 M42 2.0 0.48
01:35–07:45 — nothing worth pointing at — 6.17

Targets

targetastronomyoverallbest windowhighestMoon sep.scheduled h
M31 Andromeda Galaxy 33 unknown 19:05–23:30 (marginal) 89.8° at 17:00 42.3° 1.17
M42 Great Orion Nebula 43 unknown 19:05–01:35 (marginal) 42.9° at 21:50 39.3° 2.0
M45 Seven Sisters 45 unknown 19:05–01:35 (marginal) 72.5° at 20:05 8.8° 1.17
NGC 7000 North America Nebula 12 unknown 19:05–20:10 (marginal) 87.2° at 13:15 82.7° 1.17
V1057 Cyg 11 unknown 19:05–20:10 (marginal) 87.3° at 13:15 82.7° 0.0
M33 Triangulum Pinwheel 28 unknown 19:05–23:35 (marginal) 79.2° at 17:50 28.7° 1.17

Left out

💡 API 
curl -sS "https://devops.majbase.com/rozhen-planner/plan-api?targets=M31,M42,M45,NGC%207000&date=2040-01-22"

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"}.