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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 Tuesday, 16 January 2046 · astronomical night 18:54 → 06:06 (11.2 h) · Moon 65% (waxing gibbous) · weather: none — the schedule is astronomy only; overall conditions unknown

M31M31 17:50–18:25: quality 0.1M31 18:25–18:55: quality 0.3M31 18:55–23:05: quality 0.5M31 23:05–23:35: quality 0.4M31 23:35–00:05: quality 0.3observe M31 22:55–23:50M42M42 18:30–18:45: quality 0.1M42 18:45–18:55: quality 0.2M42 18:55–19:00: quality 0.3M42 19:00–19:25: quality 0.4M42 19:25–21:50: quality 0.5M42 21:50–01:05: quality 0.6M42 01:05–01:30: quality 0.5M42 01:30–01:55: quality 0.4M42 01:55–02:05: quality 0.3observe M42 21:40–22:55observe M42 02:00–02:05M45M45 17:50–18:25: quality 0.1M45 18:25–18:40: quality 0.3M45 18:40–18:55: quality 0.2M45 18:55–22:10: quality 0.5M45 22:10–23:55: quality 0.6M45 23:55–01:30: quality 0.5M45 01:30–01:50: quality 0.4M45 01:50–02:05: quality 0.3observe M45 23:50–02:00NGC 7000NGC 7000 17:50–18:25: quality 0.1NGC 7000 18:25–18:55: quality 0.3NGC 7000 18:55–19:25: quality 0.6NGC 7000 19:25–19:50: quality 0.5NGC 7000 19:50–20:15: quality 0.4NGC 7000 20:15–20:35: quality 0.3NGC 7000 06:45–07:15: quality 0.1observe NGC 7000 18:55–20:10V1057 CygV1057 Cyg 17:50–18:25: quality 0.1V1057 Cyg 18:25–18:55: quality 0.3V1057 Cyg 18:55–19:25: quality 0.6V1057 Cyg 19:25–19:50: quality 0.5V1057 Cyg 19:50–20:15: quality 0.4V1057 Cyg 20:15–20:30: quality 0.3V1057 Cyg 06:45–07:15: quality 0.1observe V1057 Cyg 20:10–20:25M33M33 17:50–18:25: quality 0.1M33 18:25–18:40: quality 0.3M33 18:40–18:55: quality 0.2M33 18:55–23:25: quality 0.5M33 23:25–23:50: quality 0.4M33 23:50–00:15: quality 0.3observe M33 20:25–21:40scheduleNGC 7000M33M42M31M4518:0020:0022:0000:0002:0004:0006:00

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
17:15–18:55 — nothing worth pointing at — 1.67
18:55–20:10 NGC 7000 1.25 0.5
20:10–20:25 V1057 Cyg 0.25 0.33
20:25–21:40 M33 1.25 0.5
21:40–22:55 M42 1.25 0.56
22:55–23:50 M31 0.92 0.39
23:50–02:00 M45 2.17 0.5
02:00–02:05 M42 0.08 0.31
02:05–07:45 — nothing worth pointing at — 5.67

Targets

targetastronomyoverallbest windowhighestMoon sep.scheduled h
M31 Andromeda Galaxy 33 unknown 18:55–23:50 (marginal) 89.7° at 17:20 32.1° 0.92
M42 Great Orion Nebula 55 unknown 18:55–02:05 (marginal) 42.9° at 22:15 50.2° 1.33
M45 Seven Sisters 54 unknown 18:55–02:00 (marginal) 72.6° at 20:25 15.2° 2.17
NGC 7000 North America Nebula 14 unknown 18:55–20:25 (marginal) 87.2° at 13:35 72.4° 1.25
V1057 Cyg 14 unknown 18:55–20:25 (marginal) 87.2° at 13:35 72.4° 0.25
M33 Triangulum Pinwheel 34 unknown 18:55–00:00 (marginal) 79.2° at 18:10 17.9° 1.25
💡 API 
curl -sS "https://devops.majbase.com/rozhen-planner/plan-api?targets=M31,M42,M45,NGC%207000&date=2046-01-16"

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"}.