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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 Wednesday, 17 January 2029 · astronomical night 18:55 → 06:06 (11.17 h) · Moon 10% (waxing crescent) · weather: none — the schedule is astronomy only; overall conditions unknown

M31M31 17:50–18:25: quality 0.1M31 18:25–19:00: quality 0.5M31 19:00–20:40: quality 1.0M31 20:40–22:10: quality 0.9M31 22:10–23:00: quality 0.8M31 23:00–23:15: quality 0.7M31 23:15–23:35: quality 0.6M31 23:35–23:50: quality 0.5M31 23:50–00:00: quality 0.4observe M31 18:25–19:45M42M42 18:25–18:40: quality 0.2M42 18:40–19:00: quality 0.3M42 19:00–19:05: quality 0.6M42 19:05–19:20: quality 0.7M42 19:20–20:30: quality 0.8M42 20:30–23:50: quality 0.9M42 23:50–01:00: quality 0.8M42 01:00–01:20: quality 0.7M42 01:20–01:35: quality 0.6M42 01:35–01:50: quality 0.5M42 01:50–02:00: quality 0.4observe M42 22:55–02:00M45M45 17:50–18:25: quality 0.1M45 18:25–19:00: quality 0.5M45 19:00–23:00: quality 1.0M45 23:00–00:25: quality 0.9M45 00:25–01:10: quality 0.8M45 01:10–01:25: quality 0.7M45 01:25–01:35: quality 0.6M45 01:35–01:50: quality 0.5M45 01:50–02:00: quality 0.4observe M45 21:35–22:55NGC 7000NGC 7000 17:50–18:25: quality 0.1NGC 7000 18:25–19:00: quality 0.4NGC 7000 19:00–19:20: quality 0.8NGC 7000 19:20–19:40: quality 0.7NGC 7000 19:40–19:55: quality 0.6NGC 7000 19:55–20:20: quality 0.5NGC 7000 20:20–20:25: quality 0.4NGC 7000 06:40–07:15: quality 0.1observe NGC 7000 19:45–20:15V1057 CygV1057 Cyg 17:50–18:25: quality 0.1V1057 Cyg 18:25–19:00: quality 0.4V1057 Cyg 19:00–19:20: quality 0.8V1057 Cyg 19:20–19:40: quality 0.7V1057 Cyg 19:40–19:55: quality 0.6V1057 Cyg 19:55–20:20: quality 0.5V1057 Cyg 20:20–20:25: quality 0.4V1057 Cyg 06:40–07:15: quality 0.1M33M33 17:50–18:25: quality 0.1M33 18:25–19:00: quality 0.5M33 19:00–21:10: quality 1.0M33 21:10–22:30: quality 0.9M33 22:30–23:20: quality 0.8M33 23:20–23:30: quality 0.7M33 23:30–23:45: quality 0.6M33 23:45–00:00: quality 0.5M33 00:00–00:10: quality 0.4observe M33 20:15–21:35scheduleM31M33M45M4218:0020:0022:0000:0002:0004:0006:00

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
17:15–18:25 — nothing worth pointing at — 1.17
18:25–19:45 M31 1.33 0.75
19:45–20:15 NGC 7000 0.5 0.54
20:15–21:35 M33 1.33 0.97
21:35–22:55 M45 1.33 0.99
22:55–02:00 M42 3.08 0.76
02:00–07:45 — nothing worth pointing at — 5.75

Targets

targetastronomyoverallbest windowhighestMoon sep.scheduled h
M31 Andromeda Galaxy 98 unknown 19:00–23:25 (good) 89.7° at 17:15 57.2° 1.33
M42 Great Orion Nebula 89 unknown 19:00–01:25 (good) 42.9° at 22:10 107.8° 3.08
M45 Seven Sisters 100 unknown 19:00–01:30 (good) 72.5° at 20:20 84.6° 1.33
NGC 7000 North America Nebula 24 unknown 19:00–19:50 (good) 87.2° at 13:30 53.5° 0.5
V1057 Cyg 24 unknown 19:00–19:50 (good) 87.3° at 13:30 53.4° 0.0
M33 Triangulum Pinwheel 100 unknown 19:00–23:40 (good) 79.1° at 18:05 58.8° 1.33

Left out

💡 API 
curl -sS "https://devops.majbase.com/rozhen-planner/plan-api?targets=M31,M42,M45,NGC%207000&date=2029-01-17"

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"}.