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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 Saturday, 19 January 2030 · astronomical night 18:57 → 06:05 (11.13 h) · Moon 100% (full moon) · weather: none — the schedule is astronomy only; overall conditions unknown

M31M31 17:55–18:25: quality 0.1M31 18:25–19:00: quality 0.4M31 19:00–20:05: quality 0.8M31 20:05–21:25: quality 0.7M31 21:25–22:50: quality 0.6M31 22:50–23:10: quality 0.5M31 23:10–23:35: quality 0.4M31 23:35–23:50: quality 0.3observe M31 20:20–21:30M42M42 18:25–18:30: quality 0.1M42 18:30–19:00: quality 0.2M42 19:00–22:15: quality 0.4M42 22:15–01:00: quality 0.3M42 01:00–01:50: quality 0.2M45M45 17:55–18:25: quality 0.1M45 18:25–19:00: quality 0.3M45 19:00–21:05: quality 0.6M45 21:05–23:10: quality 0.5M45 23:10–01:05: quality 0.4M45 01:05–01:35: quality 0.3M45 01:35–01:50: quality 0.2observe M45 22:40–01:20NGC 7000NGC 7000 17:55–18:25: quality 0.1NGC 7000 18:25–19:00: quality 0.4NGC 7000 19:00–19:25: quality 0.7NGC 7000 19:25–19:40: quality 0.6NGC 7000 19:40–20:00: quality 0.5NGC 7000 20:00–20:20: quality 0.4NGC 7000 06:30–06:40: quality 0.2NGC 7000 06:40–07:15: quality 0.1observe NGC 7000 18:25–19:35V1057 CygV1057 Cyg 17:55–18:25: quality 0.1V1057 Cyg 18:25–19:00: quality 0.4V1057 Cyg 19:00–19:25: quality 0.7V1057 Cyg 19:25–19:40: quality 0.6V1057 Cyg 19:40–20:00: quality 0.5V1057 Cyg 20:00–20:20: quality 0.4V1057 Cyg 06:30–06:40: quality 0.2V1057 Cyg 06:40–07:15: quality 0.1observe V1057 Cyg 19:35–20:20M33M33 17:55–18:25: quality 0.1M33 18:25–19:00: quality 0.4M33 19:00–19:35: quality 0.8M33 19:35–21:20: quality 0.7M33 21:20–22:45: quality 0.6M33 22:45–23:20: quality 0.5M33 23:20–23:40: quality 0.4M33 23:40–00:00: quality 0.3observe M33 21:30–22:40scheduleNGC 7000M31M33M4518:0020:0022:0000:0002:0004:0006:00

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
17:20–18:25 — nothing worth pointing at — 1.08
18:25–19:35 NGC 7000 1.17 0.52
19:35–20:20 V1057 Cyg 0.75 0.47
20:20–21:30 M31 1.17 0.69
21:30–22:40 M33 1.17 0.6
22:40–01:20 M45 2.67 0.41
01:20–07:45 — nothing worth pointing at — 6.42

Targets

targetastronomyoverallbest windowhighestMoon sep.scheduled h
M31 Andromeda Galaxy 66 unknown 19:00–22:10 (good) 89.7° at 17:10 96.2° 1.17
M42 Great Orion Nebula 26 unknown 19:00–23:50 (marginal) 42.9° at 22:00 45.9° 0.0
M45 Seven Sisters 57 unknown 19:00–20:00 (good) 72.5° at 20:15 63.8° 2.67
NGC 7000 North America Nebula 20 unknown 19:00–19:30 (good) 87.2° at 13:25 118.7° 1.17
V1057 Cyg 20 unknown 19:00–19:30 (good) 87.3° at 13:25 118.7° 0.75
M33 Triangulum Pinwheel 65 unknown 19:00–22:00 (good) 79.1° at 18:00 91.0° 1.17

Left out

💡 API 
curl -sS "https://devops.majbase.com/rozhen-planner/plan-api?targets=M31,M42,M45,NGC%207000&date=2030-01-19"

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"}.