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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 Sunday, 09 January 2033 · astronomical night 18:48 → 06:08 (11.34 h) · Moon 69% (waxing gibbous) · weather: none — the schedule is astronomy only; overall conditions unknown

M31M31 17:45–18:15: quality 0.1M31 18:15–18:50: quality 0.3M31 18:50–23:30: quality 0.5M31 23:30–00:00: quality 0.4M31 00:00–00:30: quality 0.3observe M31 20:55–22:20M42M42 18:55–19:00: quality 0.2M42 19:00–19:30: quality 0.3M42 19:30–20:05: quality 0.4M42 20:05–23:10: quality 0.5M42 23:10–01:30: quality 0.6M42 01:30–01:55: quality 0.5M42 01:55–02:20: quality 0.4M42 02:20–02:30: quality 0.3observe M42 22:20–23:45observe M42 02:25–02:30M45M45 17:45–18:15: quality 0.1M45 18:15–18:50: quality 0.2M45 18:50–01:55: quality 0.5M45 01:55–02:15: quality 0.4M45 02:15–02:30: quality 0.3observe M45 00:25–02:25NGC 7000NGC 7000 17:45–18:15: quality 0.1NGC 7000 18:15–18:50: quality 0.3NGC 7000 18:50–19:50: quality 0.6NGC 7000 19:50–20:15: quality 0.5NGC 7000 20:15–20:40: quality 0.4NGC 7000 20:40–21:00: quality 0.3NGC 7000 07:10–07:20: quality 0.1observe NGC 7000 18:15–19:40V1057 CygV1057 Cyg 17:45–18:15: quality 0.1V1057 Cyg 18:15–18:50: quality 0.3V1057 Cyg 18:50–19:50: quality 0.6V1057 Cyg 19:50–20:15: quality 0.5V1057 Cyg 20:15–20:40: quality 0.4V1057 Cyg 20:40–21:00: quality 0.3V1057 Cyg 07:10–07:20: quality 0.1observe V1057 Cyg 19:40–20:55M33M33 17:45–18:15: quality 0.1M33 18:15–18:50: quality 0.2M33 18:50–23:45: quality 0.5M33 23:45–00:15: quality 0.4M33 00:15–00:40: quality 0.3observe M33 23:45–00:25scheduleNGC 7000V1057 CygM31M42M4518:0020:0022:0000:0002:0004:0006:00

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 NGC 7000 1.42 0.47
19:40–20:55 V1057 Cyg 1.25 0.44
20:55–22:20 M31 1.42 0.5
22:20–23:45 M42 1.42 0.55
23:45–00:25 M33 0.67 0.38
00:25–02:25 M45 2.0 0.49
02:25–02:30 M42 0.08 0.31
02:30–07:50 — nothing worth pointing at — 5.33

Targets

targetastronomyoverallbest windowhighestMoon sep.scheduled h
M31 Andromeda Galaxy 37 unknown 18:50–00:15 (marginal) 89.5° at 17:50 37.4° 1.42
M42 Great Orion Nebula 53 unknown 19:15–02:30 (marginal) 42.9° at 22:40 47.1° 1.5
M45 Seven Sisters 54 unknown 18:50–02:25 (marginal) 72.6° at 20:50 18.0° 2.0
NGC 7000 North America Nebula 20 unknown 18:50–18:55 (good) 87.2° at 14:05 77.2° 1.42
V1057 Cyg 20 unknown 18:50–18:55 (good) 87.3° at 14:05 77.2° 1.25
M33 Triangulum Pinwheel 35 unknown 18:50–00:25 (marginal) 79.1° at 18:40 22.7° 0.67
💡 API 
curl -sS "https://devops.majbase.com/rozhen-planner/plan-api?targets=M31,M42,M45,NGC%207000&date=2033-01-09"

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"}.