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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, 26 January 2043 · astronomical night 19:04 → 06:01 (10.95 h) · Moon 97% (waning gibbous) · weather: none — the schedule is astronomy only; overall conditions unknown

M31M31 18:00–18:35: quality 0.2M31 18:35–18:55: quality 0.5M31 18:55–19:05: quality 0.4M31 19:05–19:50: quality 0.9M31 19:50–21:10: quality 0.8M31 21:10–22:25: quality 0.7M31 22:25–22:40: quality 0.6M31 22:40–23:00: quality 0.5M31 23:00–23:20: quality 0.4M31 23:20–23:25: quality 0.3observe M31 20:55–22:05M42M42 18:00–18:35: quality 0.1M42 18:35–18:55: quality 0.4M42 18:55–19:05: quality 0.3M42 19:05–21:45: quality 0.6M42 21:45–23:55: quality 0.5M42 23:55–00:45: quality 0.4M42 00:45–01:15: quality 0.3M42 01:15–01:25: quality 0.2observe M42 23:15–00:35M45M45 18:00–18:35: quality 0.2M45 18:35–18:55: quality 0.5M45 18:55–19:05: quality 0.4M45 19:05–20:35: quality 0.8M45 20:35–22:35: quality 0.7M45 22:35–00:00: quality 0.6M45 00:00–00:45: quality 0.5M45 00:45–01:05: quality 0.4M45 01:05–01:25: quality 0.3observe M45 22:05–23:15observe M45 00:35–01:15NGC 7000NGC 7000 18:00–18:35: quality 0.1NGC 7000 18:35–18:55: quality 0.4NGC 7000 18:55–19:05: quality 0.3NGC 7000 19:05–19:20: quality 0.6NGC 7000 19:20–19:35: quality 0.5NGC 7000 19:35–19:55: quality 0.4NGC 7000 06:05–06:35: quality 0.2NGC 7000 06:35–07:10: quality 0.1observe NGC 7000 18:35–19:45V1057 CygV1057 Cyg 18:00–18:35: quality 0.1V1057 Cyg 18:35–18:55: quality 0.4V1057 Cyg 18:55–19:05: quality 0.3V1057 Cyg 19:05–19:20: quality 0.6V1057 Cyg 19:20–19:35: quality 0.5V1057 Cyg 19:35–19:55: quality 0.4V1057 Cyg 06:05–06:35: quality 0.2V1057 Cyg 06:35–07:10: quality 0.1M33M33 18:00–18:35: quality 0.2M33 18:35–18:55: quality 0.5M33 18:55–19:05: quality 0.4M33 19:05–20:10: quality 0.9M33 20:10–21:25: quality 0.8M33 21:25–22:40: quality 0.7M33 22:40–22:55: quality 0.6M33 22:55–23:15: quality 0.5M33 23:15–23:30: quality 0.4M33 23:30–23:35: quality 0.3observe M33 19:45–20:55scheduleNGC 7000M33M31M45M4218:0020:0022:0000:0002:0004:0006:00

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
18:35–19:45 NGC 7000 1.17 0.45
19:45–20:55 M33 1.17 0.84
20:55–22:05 M31 1.17 0.72
22:05–23:15 M45 1.17 0.64
23:15–00:35 M42 1.33 0.45
00:35–01:15 M45 0.67 0.4
01:15–07:40 — nothing worth pointing at — 6.42

Targets

targetastronomyoverallbest windowhighestMoon sep.scheduled h
M31 Andromeda Galaxy 76 unknown 19:05–22:30 (good) 89.6° at 16:45 112.0° 1.17
M42 Great Orion Nebula 51 unknown 19:05–01:00 (marginal) 42.9° at 21:35 69.3° 1.33
M45 Seven Sisters 80 unknown 19:05–23:15 (good) 72.5° at 19:45 87.1° 1.83
NGC 7000 North America Nebula 13 unknown 19:05–19:10 (good) 87.2° at 13:00 118.2° 1.17
V1057 Cyg 13 unknown 19:05–19:10 (good) 87.3° at 13:00 118.3° 0.0
M33 Triangulum Pinwheel 80 unknown 19:05–22:50 (good) 79.2° at 17:35 111.1° 1.17

Left out

💡 API 
curl -sS "https://devops.majbase.com/rozhen-planner/plan-api?targets=M31,M42,M45,NGC%207000&date=2043-01-26"

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"}.