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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, 14 January 2038 · astronomical night 18:52 → 06:07 (11.24 h) · Moon 63% (waxing gibbous) · weather: none — the schedule is astronomy only; overall conditions unknown

M31M31 17:50–18:20: quality 0.1M31 18:20–18:55: quality 0.3M31 18:55–21:25: quality 0.6M31 21:25–23:25: quality 0.5M31 23:25–23:50: quality 0.4M31 23:50–00:10: quality 0.3observe M31 20:40–22:00M42M42 18:35–18:50: quality 0.1M42 18:50–18:55: quality 0.2M42 18:55–19:05: quality 0.3M42 19:05–19:30: quality 0.4M42 19:30–21:30: quality 0.5M42 21:30–01:20: quality 0.6M42 01:20–01:45: quality 0.5M42 01:45–02:00: quality 0.4M42 02:00–02:05: quality 0.5M42 02:05–02:10: quality 0.4observe M42 00:15–02:10M45M45 17:50–18:20: quality 0.1M45 18:20–18:55: quality 0.3M45 18:55–20:55: quality 0.5M45 20:55–01:20: quality 0.6M45 01:20–01:40: quality 0.5M45 01:40–02:00: quality 0.4M45 02:00–02:05: quality 0.5M45 02:05–02:10: quality 0.4observe M45 22:00–23:20NGC 7000NGC 7000 17:50–18:20: quality 0.1NGC 7000 18:20–18:55: quality 0.3NGC 7000 18:55–19:40: quality 0.6NGC 7000 19:40–20:05: quality 0.5NGC 7000 20:05–20:25: quality 0.4NGC 7000 20:25–20:40: quality 0.3NGC 7000 06:50–07:20: quality 0.1observe NGC 7000 18:20–19:40V1057 CygV1057 Cyg 17:50–18:20: quality 0.1V1057 Cyg 18:20–18:55: quality 0.3V1057 Cyg 18:55–19:40: quality 0.6V1057 Cyg 19:40–20:05: quality 0.5V1057 Cyg 20:05–20:25: quality 0.4V1057 Cyg 20:25–20:40: quality 0.3V1057 Cyg 06:50–07:20: quality 0.1observe V1057 Cyg 19:40–20:40M33M33 17:50–18:20: quality 0.1M33 18:20–18:55: quality 0.3M33 18:55–23:40: quality 0.5M33 23:40–00:00: quality 0.4M33 00:00–00:20: quality 0.3observe M33 23:20–00:15scheduleNGC 7000V1057 CygM31M45M33M4218:0020:0022:0000:0002:0004:0006:00

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
17:10–18:20 — nothing worth pointing at — 1.17
18:20–19:40 NGC 7000 1.33 0.48
19:40–20:40 V1057 Cyg 1.0 0.42
20:40–22:00 M31 1.33 0.55
22:00–23:20 M45 1.33 0.59
23:20–00:15 M33 0.92 0.41
00:15–02:10 M42 1.92 0.54
02:10–07:50 — nothing worth pointing at — 5.67

Targets

targetastronomyoverallbest windowhighestMoon sep.scheduled h
M31 Andromeda Galaxy 43 unknown 18:55–00:05 (marginal) 89.7° at 17:30 40.1° 1.33
M42 Great Orion Nebula 59 unknown 23:35–01:05 (good) 42.9° at 22:20 46.8° 1.92
M45 Seven Sisters 60 unknown 18:55–02:10 (marginal) 72.5° at 20:30 21.4° 1.33
NGC 7000 North America Nebula 18 unknown 18:55–19:20 (good) 87.2° at 13:45 79.2° 1.33
V1057 Cyg 18 unknown 18:55–19:20 (good) 87.3° at 13:45 79.1° 1.0
M33 Triangulum Pinwheel 40 unknown 18:55–00:15 (marginal) 79.2° at 18:20 25.3° 0.92
💡 API 
curl -sS "https://devops.majbase.com/rozhen-planner/plan-api?targets=M31,M42,M45,NGC%207000&date=2038-01-14"

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"}.