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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, 10 January 2033 · astronomical night 18:49 → 06:08 (11.32 h) · Moon 79% (waxing gibbous) · weather: none — the schedule is astronomy only; overall conditions unknown

M31M31 17:45–18:20: quality 0.1M31 18:20–18:40: quality 0.3M31 18:40–18:50: quality 0.2M31 18:50–21:30: quality 0.5M31 21:30–23:45: quality 0.4M31 23:45–00:20: quality 0.3M31 00:20–00:25: quality 0.2observe M31 20:50–22:10M42M42 18:50–19:15: quality 0.2M42 19:15–19:55: quality 0.3M42 19:55–00:20: quality 0.4M42 00:20–01:25: quality 0.5M42 01:25–02:00: quality 0.4M42 02:00–02:25: quality 0.3observe M42 00:50–02:15M45M45 17:45–18:20: quality 0.1M45 18:20–18:50: quality 0.2M45 18:50–02:00: quality 0.4M45 02:00–02:25: quality 0.3observe M45 23:30–00:50NGC 7000NGC 7000 17:45–18:20: quality 0.1NGC 7000 18:20–18:50: quality 0.3NGC 7000 18:50–19:50: quality 0.6NGC 7000 19:50–20:10: quality 0.5NGC 7000 20:10–20:35: quality 0.4NGC 7000 20:35–20:55: quality 0.3NGC 7000 07:05–07:20: quality 0.1observe NGC 7000 18:20–19:40V1057 CygV1057 Cyg 17:45–18:20: quality 0.1V1057 Cyg 18:20–18:50: quality 0.3V1057 Cyg 18:50–19:50: quality 0.6V1057 Cyg 19:50–20:10: quality 0.5V1057 Cyg 20:10–20:35: quality 0.4V1057 Cyg 20:35–20:55: quality 0.3V1057 Cyg 07:05–07:20: quality 0.1observe V1057 Cyg 19:40–20:50M33M33 17:45–18:20: quality 0.1M33 18:20–18:50: quality 0.2M33 18:50–23:50: quality 0.4M33 23:50–00:25: quality 0.3M33 00:25–00:35: quality 0.2observe M33 22:10–23:30scheduleNGC 7000V1057 CygM31M33M45M4218:0020:0022:0000:0002:0004:0006:00

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
19:40–20:50 V1057 Cyg 1.17 0.44
20:50–22:10 M31 1.33 0.45
22:10–23:30 M33 1.33 0.38
23:30–00:50 M45 1.33 0.44
00:50–02:15 M42 1.42 0.41
02:15–07:50 — nothing worth pointing at — 5.58

Targets

targetastronomyoverallbest windowhighestMoon sep.scheduled h
M31 Andromeda Galaxy 32 unknown 18:50–00:00 (marginal) 89.7° at 17:45 44.6° 1.33
M42 Great Orion Nebula 34 unknown 19:35–02:15 (marginal) 42.9° at 22:35 36.6° 1.42
M45 Seven Sisters 37 unknown 18:50–02:10 (marginal) 72.6° at 20:45 7.6° 1.33
NGC 7000 North America Nebula 19 unknown 18:50–18:55 (good) 87.2° at 14:00 85.0° 1.33
V1057 Cyg 19 unknown 18:50–18:55 (good) 87.3° at 14:00 85.0° 1.17
M33 Triangulum Pinwheel 25 unknown 18:50–00:05 (marginal) 79.1° at 18:35 31.3° 1.33
💡 API 
curl -sS "https://devops.majbase.com/rozhen-planner/plan-api?targets=M31,M42,M45,NGC%207000&date=2033-01-10"

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"}.