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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, 07 January 2042 · astronomical night 18:46 → 06:08 (11.37 h) · Moon 97% (full moon) · weather: none — the schedule is astronomy only; overall conditions unknown

M31M31 17:40–18:10: quality 0.2M31 18:10–18:15: quality 0.1M31 18:15–18:50: quality 0.4M31 18:50–20:50: quality 0.8M31 20:50–22:05: quality 0.7M31 22:05–23:35: quality 0.6M31 23:35–23:55: quality 0.5M31 23:55–00:20: quality 0.4M31 00:20–00:40: quality 0.3observe M31 20:55–22:15M42M42 19:05–19:30: quality 0.3M42 19:30–20:00: quality 0.4M42 20:00–21:25: quality 0.5M42 21:25–00:30: quality 0.4M42 00:30–02:05: quality 0.3M42 02:05–02:40: quality 0.2observe M42 00:55–01:40M45M45 17:40–18:15: quality 0.1M45 18:15–18:50: quality 0.3M45 18:50–20:05: quality 0.7M45 20:05–22:30: quality 0.6M45 22:30–00:20: quality 0.5M45 00:20–01:55: quality 0.4M45 01:55–02:25: quality 0.3M45 02:25–02:40: quality 0.2observe M45 23:35–00:55observe M45 01:40–02:10NGC 7000NGC 7000 17:40–18:15: quality 0.1NGC 7000 18:15–18:50: quality 0.4NGC 7000 18:50–19:10: quality 0.8NGC 7000 19:10–20:05: quality 0.7NGC 7000 20:05–20:25: quality 0.6NGC 7000 20:25–20:45: quality 0.5NGC 7000 20:45–21:05: quality 0.4NGC 7000 21:05–21:10: quality 0.3observe NGC 7000 19:35–20:55V1057 CygV1057 Cyg 17:40–18:15: quality 0.1V1057 Cyg 18:15–18:50: quality 0.4V1057 Cyg 18:50–19:10: quality 0.8V1057 Cyg 19:10–20:05: quality 0.7V1057 Cyg 20:05–20:25: quality 0.6V1057 Cyg 20:25–20:45: quality 0.5V1057 Cyg 20:45–21:05: quality 0.4V1057 Cyg 21:05–21:10: quality 0.3observe V1057 Cyg 18:15–19:35M33M33 17:40–18:10: quality 0.2M33 18:10–18:15: quality 0.1M33 18:15–18:50: quality 0.4M33 18:50–20:30: quality 0.8M33 20:30–22:10: quality 0.7M33 22:10–23:35: quality 0.6M33 23:35–00:10: quality 0.5M33 00:10–00:30: quality 0.4M33 00:30–00:50: quality 0.3observe M33 22:15–23:35scheduleV1057 CygNGC 7000M31M33M4518:0020:0022:0000:0002:0004:0006:00

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
18:15–19:35 V1057 Cyg 1.33 0.59
19:35–20:55 NGC 7000 1.33 0.59
20:55–22:15 M31 1.33 0.69
22:15–23:35 M33 1.33 0.6
23:35–00:55 M45 1.33 0.46
00:55–01:40 M42 0.75 0.33
01:40–02:10 M45 0.5 0.35
02:10–07:50 — nothing worth pointing at — 5.67

Targets

targetastronomyoverallbest windowhighestMoon sep.scheduled h
M31 Andromeda Galaxy 81 unknown 18:50–22:50 (good) 89.6° at 17:55 94.0° 1.33
M42 Great Orion Nebula 34 unknown 19:15–01:40 (marginal) 42.9° at 22:50 53.3° 0.75
M45 Seven Sisters 69 unknown 18:50–21:10 (good) 72.5° at 21:00 66.0° 1.83
NGC 7000 North America Nebula 34 unknown 18:50–20:15 (good) 87.2° at 14:15 111.9° 1.33
V1057 Cyg 34 unknown 18:50–20:15 (good) 87.2° at 14:15 112.0° 1.33
M33 Triangulum Pinwheel 80 unknown 18:50–22:50 (good) 79.2° at 18:50 90.9° 1.33
💡 API 
curl -sS "https://devops.majbase.com/rozhen-planner/plan-api?targets=M31,M42,M45,NGC%207000&date=2042-01-07"

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"}.