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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 Thursday, 04 January 2029 · astronomical night 18:43 → 06:08 (11.41 h) · Moon 78% (waning gibbous) · weather: none — the schedule is astronomy only; overall conditions unknown

M31M31 17:40–18:15: quality 0.2M31 18:15–18:45: quality 0.5M31 18:45–21:35: quality 1.0M31 21:35–22:05: quality 0.9M31 22:05–23:30: quality 0.8M31 23:30–00:00: quality 0.7M31 00:00–00:15: quality 0.6M31 00:15–00:35: quality 0.5M31 00:35–00:50: quality 0.4observe M31 18:15–19:45M42M42 19:15–19:20: quality 0.4M42 19:20–19:35: quality 0.5M42 19:35–19:55: quality 0.6M42 19:55–20:10: quality 0.7M42 20:10–21:20: quality 0.8M42 21:20–21:50: quality 0.9M42 21:50–00:00: quality 0.7M42 00:00–01:45: quality 0.6M42 01:45–02:10: quality 0.5M42 02:10–02:30: quality 0.4M42 02:30–02:50: quality 0.3observe M42 00:05–01:50M45M45 17:40–18:15: quality 0.1M45 18:15–18:45: quality 0.5M45 18:45–21:50: quality 1.0M45 21:50–23:15: quality 0.9M45 23:15–00:30: quality 0.8M45 00:30–01:50: quality 0.7M45 01:50–02:10: quality 0.6M45 02:10–02:25: quality 0.5M45 02:25–02:45: quality 0.4M45 02:45–02:50: quality 0.3observe M45 22:35–00:05observe M45 01:50–02:50NGC 7000NGC 7000 17:40–18:15: quality 0.1NGC 7000 18:15–18:35: quality 0.5NGC 7000 18:35–18:45: quality 0.4NGC 7000 18:45–19:25: quality 0.9NGC 7000 19:25–20:20: quality 0.8NGC 7000 20:20–20:35: quality 0.7NGC 7000 20:35–20:50: quality 0.6NGC 7000 20:50–21:10: quality 0.5NGC 7000 21:10–21:20: quality 0.4observe NGC 7000 19:45–21:05V1057 CygV1057 Cyg 17:40–18:15: quality 0.1V1057 Cyg 18:15–18:35: quality 0.5V1057 Cyg 18:35–18:45: quality 0.4V1057 Cyg 18:45–19:25: quality 0.9V1057 Cyg 19:25–20:20: quality 0.8V1057 Cyg 20:20–20:35: quality 0.7V1057 Cyg 20:35–20:50: quality 0.6V1057 Cyg 20:50–21:10: quality 0.5V1057 Cyg 21:10–21:20: quality 0.4M33M33 17:40–18:15: quality 0.2M33 18:15–18:45: quality 0.5M33 18:45–21:50: quality 1.0M33 21:50–22:30: quality 0.9M33 22:30–23:45: quality 0.8M33 23:45–00:15: quality 0.7M33 00:15–00:30: quality 0.6M33 00:30–00:45: quality 0.5M33 00:45–01:00: quality 0.4observe M33 21:05–22:35scheduleM31NGC 7000M33M45M42M4518:0020:0022:0000:0002:0004:0006:00

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
17:00–18:15 — nothing worth pointing at — 1.25
18:15–19:45 M31 1.5 0.83
19:45–21:05 NGC 7000 1.33 0.69
21:05–22:35 M33 1.5 0.93
22:35–00:05 M45 1.5 0.83
00:05–01:50 M42 1.75 0.6
01:50–02:50 M45 1.0 0.49
02:50–07:50 — nothing worth pointing at — 5.0

Targets

targetastronomyoverallbest windowhighestMoon sep.scheduled h
M31 Andromeda Galaxy 100 unknown 18:45–00:05 (good) 89.5° at 18:05 127.0° 1.5
M42 Great Orion Nebula 87 unknown 19:45–01:00 (good) 42.9° at 23:00 76.6° 1.75
M45 Seven Sisters 100 unknown 18:45–02:00 (good) 72.5° at 21:10 100.6° 2.5
NGC 7000 North America Nebula 49 unknown 18:45–20:45 (good) 87.2° at 14:25 126.9° 1.33
V1057 Cyg 49 unknown 18:45–20:45 (good) 87.3° at 14:25 126.9° 0.0
M33 Triangulum Pinwheel 100 unknown 18:45–00:20 (good) 79.1° at 19:00 126.1° 1.5

Left out

💡 API 
curl -sS "https://devops.majbase.com/rozhen-planner/plan-api?targets=M31,M42,M45,NGC%207000&date=2029-01-04"

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"}.