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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, 15 January 2035 · astronomical night 18:53 → 06:07 (11.23 h) · Moon 36% (waxing crescent) · weather: none — the schedule is astronomy only; overall conditions unknown

M31M31 17:50–18:25: quality 0.1M31 18:25–18:55: quality 0.4M31 18:55–21:20: quality 0.8M31 21:20–23:10: quality 0.7M31 23:10–23:20: quality 0.6M31 23:20–23:25: quality 0.7M31 23:25–23:45: quality 0.6M31 23:45–00:00: quality 0.5M31 00:00–00:10: quality 0.4observe M31 23:10–00:00M42M42 18:30–18:55: quality 0.2M42 18:55–19:10: quality 0.5M42 19:10–19:30: quality 0.6M42 19:30–20:50: quality 0.7M42 20:50–23:20: quality 0.8M42 23:20–00:00: quality 0.9M42 00:00–01:10: quality 0.8M42 01:10–01:30: quality 0.7M42 01:30–01:45: quality 0.6M42 01:45–02:00: quality 0.5M42 02:00–02:10: quality 0.4observe M42 00:00–02:10M45M45 17:50–18:25: quality 0.1M45 18:25–18:55: quality 0.4M45 18:55–21:55: quality 0.8M45 21:55–22:50: quality 0.9M45 22:50–23:20: quality 0.8M45 23:20–00:35: quality 0.9M45 00:35–01:20: quality 0.8M45 01:20–01:35: quality 0.7M45 01:35–01:45: quality 0.6M45 01:45–02:00: quality 0.5M45 02:00–02:10: quality 0.4observe M45 20:30–21:50NGC 7000NGC 7000 17:50–18:25: quality 0.1NGC 7000 18:25–18:50: quality 0.4NGC 7000 18:50–18:55: quality 0.3NGC 7000 18:55–19:35: quality 0.7NGC 7000 19:35–19:55: quality 0.6NGC 7000 19:55–20:15: quality 0.5NGC 7000 20:15–20:35: quality 0.4NGC 7000 06:50–07:15: quality 0.1observe NGC 7000 18:25–19:45V1057 CygV1057 Cyg 17:50–18:25: quality 0.1V1057 Cyg 18:25–18:50: quality 0.4V1057 Cyg 18:50–18:55: quality 0.3V1057 Cyg 18:55–19:35: quality 0.7V1057 Cyg 19:35–19:55: quality 0.6V1057 Cyg 19:55–20:15: quality 0.5V1057 Cyg 20:15–20:35: quality 0.4V1057 Cyg 06:50–07:15: quality 0.1observe V1057 Cyg 19:45–20:30M33M33 17:50–18:25: quality 0.1M33 18:25–18:55: quality 0.4M33 18:55–21:45: quality 0.8M33 21:45–23:20: quality 0.7M33 23:20–23:30: quality 0.8M33 23:30–23:40: quality 0.7M33 23:40–23:55: quality 0.6M33 23:55–00:10: quality 0.5M33 00:10–00:20: quality 0.4observe M33 21:50–23:10scheduleNGC 7000M45M33M31M4218:0020:0022:0000:0002:0004:0006:00

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 NGC 7000 1.33 0.55
19:45–20:30 V1057 Cyg 0.75 0.48
20:30–21:50 M45 1.33 0.84
21:50–23:10 M33 1.33 0.72
23:10–00:00 M31 0.83 0.58
00:00–02:10 M42 2.17 0.71
02:10–07:50 — nothing worth pointing at — 5.67

Targets

targetastronomyoverallbest windowhighestMoon sep.scheduled h
M31 Andromeda Galaxy 79 unknown 18:55–23:35 (good) 89.7° at 17:25 39.4° 0.83
M42 Great Orion Nebula 87 unknown 19:20–01:35 (good) 42.9° at 22:20 74.4° 2.17
M45 Seven Sisters 94 unknown 18:55–01:40 (good) 72.5° at 20:30 50.4° 1.33
NGC 7000 North America Nebula 21 unknown 18:55–19:45 (good) 87.2° at 13:40 64.3° 1.33
V1057 Cyg 21 unknown 18:55–19:45 (good) 87.3° at 13:40 64.3° 0.75
M33 Triangulum Pinwheel 79 unknown 18:55–23:50 (good) 79.1° at 18:15 31.6° 1.33
💡 API 
curl -sS "https://devops.majbase.com/rozhen-planner/plan-api?targets=M31,M42,M45,NGC%207000&date=2035-01-15"

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"}.