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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 Monday, 30 January 2045 · astronomical night 19:09 → 05:58 (10.81 h) · Moon 94% (waxing gibbous) · weather: none — the schedule is astronomy only; overall conditions unknown

M31M31 18:05–18:40: quality 0.1M31 18:40–19:10: quality 0.3M31 19:10–20:10: quality 0.6M31 20:10–22:05: quality 0.5M31 22:05–22:30: quality 0.4M31 22:30–23:00: quality 0.3M31 23:00–23:05: quality 0.2observe M31 18:40–19:35observe M31 21:40–22:45M42M42 18:30–18:40: quality 0.1M42 18:40–19:10: quality 0.2M42 19:10–00:10: quality 0.3M42 00:10–01:05: quality 0.2observe M42 20:30–20:45M45M45 18:05–18:40: quality 0.1M45 18:40–19:10: quality 0.2M45 19:10–21:45: quality 0.4M45 21:45–00:30: quality 0.3M45 00:30–01:05: quality 0.2observe M45 20:45–21:40observe M45 22:55–23:50NGC 7000NGC 7000 18:05–18:40: quality 0.1NGC 7000 18:40–18:55: quality 0.3NGC 7000 18:55–19:10: quality 0.2NGC 7000 19:10–19:25: quality 0.4NGC 7000 19:25–19:35: quality 0.3NGC 7000 05:45–05:50: quality 0.3NGC 7000 05:50–06:00: quality 0.4NGC 7000 06:00–06:20: quality 0.2NGC 7000 06:20–06:35: quality 0.3NGC 7000 06:35–07:05: quality 0.1observe NGC 7000 05:45–06:00V1057 CygV1057 Cyg 18:05–18:40: quality 0.1V1057 Cyg 18:40–18:55: quality 0.3V1057 Cyg 18:55–19:10: quality 0.2V1057 Cyg 19:10–19:25: quality 0.4V1057 Cyg 19:25–19:35: quality 0.3V1057 Cyg 05:45–05:50: quality 0.3V1057 Cyg 05:50–06:00: quality 0.4V1057 Cyg 06:00–06:20: quality 0.2V1057 Cyg 06:20–06:35: quality 0.3V1057 Cyg 06:35–07:05: quality 0.1M33M33 18:05–18:40: quality 0.1M33 18:40–19:10: quality 0.3M33 19:10–19:55: quality 0.6M33 19:55–21:40: quality 0.5M33 21:40–22:40: quality 0.4M33 22:40–23:05: quality 0.3M33 23:05–23:20: quality 0.2observe M33 19:35–20:30observe M33 22:45–22:55scheduleM31M33M45M31M4518:0020:0022:0000:0002:0004:0006:00

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
17:30–18:40 — nothing worth pointing at — 1.17
18:40–19:35 M31 0.92 0.44
19:35–20:30 M33 0.92 0.54
20:30–20:45 M42 0.25 0.3
20:45–21:40 M45 0.92 0.37
21:40–22:45 M31 1.08 0.41
22:45–22:55 M33 0.17 0.31
22:55–23:50 M45 0.92 0.31
23:50–05:45 — nothing worth pointing at — 5.92
05:45–06:00 NGC 7000 0.25 0.37
06:00–07:35 — nothing worth pointing at — 1.58

Targets

targetastronomyoverallbest windowhighestMoon sep.scheduled h
M31 Andromeda Galaxy 32 unknown 19:10–19:25 (good) 89.8° at 16:25 76.3° 2.0
M42 Great Orion Nebula 14 unknown 19:10–20:45 (marginal) 42.9° at 21:15 38.3° 0.25
M45 Seven Sisters 23 unknown 19:10–23:50 (marginal) 72.6° at 19:30 44.1° 1.83
NGC 7000 North America Nebula 7 unknown 19:10–19:35 (marginal) 87.2° at 12:40 104.3° 0.25
V1057 Cyg 7 unknown 19:10–19:35 (marginal) 87.2° at 12:40 104.3° 0.0
M33 Triangulum Pinwheel 31 unknown 19:10–22:55 (marginal) 79.2° at 17:15 70.5° 1.08

Left out

💡 API 
curl -sS "https://devops.majbase.com/rozhen-planner/plan-api?targets=M31,M42,M45,NGC%207000&date=2045-01-30"

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"}.