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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 Saturday, 07 January 2034 · astronomical night 18:46 → 06:08 (11.37 h) · Moon 89% (waning gibbous) · weather: none — the schedule is astronomy only; overall conditions unknown

M31M31 17:40–18:15: quality 0.2M31 18:15–18:50: quality 0.5M31 18:50–20:20: quality 1.0M31 20:20–21:25: quality 0.9M31 21:25–22:45: quality 0.8M31 22:45–23:40: quality 0.7M31 23:40–00:00: quality 0.6M31 00:00–00:15: quality 0.5M31 00:15–00:35: quality 0.4M31 00:35–00:40: quality 0.3observe M31 18:15–19:40M42M42 19:05–19:10: quality 0.4M42 19:10–19:25: quality 0.5M42 19:25–19:40: quality 0.6M42 19:40–20:00: quality 0.7M42 20:00–20:20: quality 0.8M42 20:20–23:25: quality 0.6M42 23:25–01:35: quality 0.5M42 01:35–02:00: quality 0.4M42 02:00–02:30: quality 0.3M42 02:30–02:40: quality 0.2observe M42 23:45–01:50M45M45 17:40–18:15: quality 0.1M45 18:15–18:50: quality 0.5M45 18:50–20:20: quality 1.0M45 20:20–22:40: quality 0.8M45 22:40–00:10: quality 0.7M45 00:10–01:40: quality 0.6M45 01:40–02:00: quality 0.5M45 02:00–02:20: quality 0.4M45 02:20–02:40: quality 0.3observe M45 22:20–23:45observe M45 01:50–02:30NGC 7000NGC 7000 17:40–18:15: quality 0.1NGC 7000 18:15–18:25: quality 0.5NGC 7000 18:25–18:50: quality 0.4NGC 7000 18:50–19:10: quality 0.9NGC 7000 19:10–20:10: quality 0.8NGC 7000 20:10–20:20: quality 0.7NGC 7000 20:20–20:35: quality 0.6NGC 7000 20:35–20:50: quality 0.5NGC 7000 20:50–21:10: quality 0.4V1057 CygV1057 Cyg 17:40–18:15: quality 0.1V1057 Cyg 18:15–18:25: quality 0.5V1057 Cyg 18:25–18:50: quality 0.4V1057 Cyg 18:50–19:10: quality 0.9V1057 Cyg 19:10–20:05: quality 0.8V1057 Cyg 20:05–20:20: quality 0.7V1057 Cyg 20:20–20:35: quality 0.6V1057 Cyg 20:35–20:50: quality 0.5V1057 Cyg 20:50–21:05: quality 0.4observe V1057 Cyg 19:40–20:55M33M33 17:40–18:15: quality 0.2M33 18:15–18:50: quality 0.5M33 18:50–20:20: quality 1.0M33 20:20–21:40: quality 0.9M33 21:40–22:55: quality 0.8M33 22:55–23:55: quality 0.7M33 23:55–00:15: quality 0.6M33 00:15–00:30: quality 0.5M33 00:30–00:45: quality 0.4M33 00:45–00:50: quality 0.3observe M33 20:55–22:20scheduleM31V1057 CygM33M45M4218:0020:0022:0000:0002:0004:0006:00

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
17:05–18:15 — nothing worth pointing at — 1.17
18:15–19:40 M31 1.42 0.79
19:40–20:55 V1057 Cyg 1.25 0.66
20:55–22:20 M33 1.42 0.85
22:20–23:45 M45 1.42 0.73
23:45–01:50 M42 2.08 0.48
01:50–02:30 M45 0.67 0.41
02:30–07:50 — nothing worth pointing at — 5.33

Targets

targetastronomyoverallbest windowhighestMoon sep.scheduled h
M31 Andromeda Galaxy 100 unknown 18:50–23:50 (good) 89.6° at 17:55 115.3° 1.42
M42 Great Orion Nebula 81 unknown 19:35–21:55 (good) 42.9° at 22:50 65.0° 2.08
M45 Seven Sisters 100 unknown 18:50–00:55 (good) 72.5° at 21:00 86.7° 2.08
NGC 7000 North America Nebula 43 unknown 18:50–20:25 (good) 87.2° at 14:10 124.7° 0.0
V1057 Cyg 42 unknown 18:50–20:25 (good) 87.3° at 14:15 124.8° 1.25
M33 Triangulum Pinwheel 100 unknown 18:50–00:05 (good) 79.1° at 18:50 112.7° 1.42

Left out

💡 API 
curl -sS "https://devops.majbase.com/rozhen-planner/plan-api?targets=M31,M42,M45,NGC%207000&date=2034-01-07"

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"}.