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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, 25 January 2037 · astronomical night 19:04 → 06:02 (10.96 h) · Moon 63% (waxing gibbous) · weather: none — the schedule is astronomy only; overall conditions unknown

M31M31 18:00–18:35: quality 0.1M31 18:35–19:05: quality 0.3M31 19:05–20:35: quality 0.6M31 20:35–22:40: quality 0.5M31 22:40–23:05: quality 0.4M31 23:05–23:25: quality 0.3observe M31 19:55–21:05M42M42 18:20–18:35: quality 0.1M42 18:35–19:05: quality 0.2M42 19:05–23:40: quality 0.5M42 23:40–00:10: quality 0.6M42 00:10–00:50: quality 0.5M42 00:50–01:15: quality 0.4M42 01:15–01:25: quality 0.3observe M42 23:25–01:25M45M45 18:00–18:35: quality 0.1M45 18:35–19:05: quality 0.3M45 19:05–21:15: quality 0.5M45 21:15–23:25: quality 0.6M45 23:25–00:50: quality 0.5M45 00:50–01:15: quality 0.4M45 01:15–01:25: quality 0.3observe M45 22:15–23:25NGC 7000NGC 7000 18:00–18:35: quality 0.1NGC 7000 18:35–19:05: quality 0.3NGC 7000 19:05–19:20: quality 0.5NGC 7000 19:20–19:45: quality 0.4NGC 7000 19:45–19:55: quality 0.3NGC 7000 06:05–06:25: quality 0.2NGC 7000 06:25–06:40: quality 0.3NGC 7000 06:40–07:10: quality 0.1observe NGC 7000 18:35–18:50observe NGC 7000 19:05–19:55V1057 CygV1057 Cyg 18:00–18:35: quality 0.1V1057 Cyg 18:35–19:05: quality 0.3V1057 Cyg 19:05–19:20: quality 0.5V1057 Cyg 19:20–19:45: quality 0.4V1057 Cyg 19:45–19:55: quality 0.3V1057 Cyg 06:05–06:25: quality 0.2V1057 Cyg 06:25–06:40: quality 0.3V1057 Cyg 06:40–07:10: quality 0.1M33M33 18:00–18:35: quality 0.1M33 18:35–19:05: quality 0.3M33 19:05–22:45: quality 0.5M33 22:45–23:15: quality 0.4M33 23:15–23:35: quality 0.3observe M33 21:05–22:15scheduleNGC 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
17:25–18:35 — nothing worth pointing at — 1.17
18:35–18:50 NGC 7000 0.25 0.31
18:50–19:05 — nothing worth pointing at — 0.25
19:05–19:55 NGC 7000 0.83 0.42
19:55–21:05 M31 1.17 0.55
21:05–22:15 M33 1.17 0.49
22:15–23:25 M45 1.17 0.56
23:25–01:25 M42 2.0 0.49
01:25–07:40 — nothing worth pointing at — 6.25

Targets

targetastronomyoverallbest windowhighestMoon sep.scheduled h
M31 Andromeda Galaxy 36 unknown 19:05–23:20 (marginal) 89.8° at 16:45 44.7° 1.17
M42 Great Orion Nebula 46 unknown 19:05–01:25 (marginal) 42.9° at 21:35 37.8° 2.0
M45 Seven Sisters 50 unknown 19:05–01:25 (marginal) 72.5° at 19:50 12.2° 1.17
NGC 7000 North America Nebula 10 unknown 19:05–19:55 (marginal) 87.2° at 13:00 85.0° 1.08
V1057 Cyg 10 unknown 19:05–19:55 (marginal) 87.3° at 13:00 85.0° 0.0
M33 Triangulum Pinwheel 31 unknown 19:05–23:25 (marginal) 79.2° at 17:35 30.6° 1.17

Left out

💡 API 
curl -sS "https://devops.majbase.com/rozhen-planner/plan-api?targets=M31,M42,M45,NGC%207000&date=2037-01-25"

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"}.