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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, 06 January 2042 · astronomical night 18:45 → 06:08 (11.39 h) · Moon 100% (full moon) · weather: none — the schedule is astronomy only; overall conditions unknown

M31M31 17:40–18:15: quality 0.1M31 18:15–18:50: quality 0.4M31 18:50–20:55: quality 0.7M31 20:55–22:20: quality 0.6M31 22:20–23:45: quality 0.5M31 23:45–00:10: quality 0.4M31 00:10–00:40: quality 0.3M31 00:40–00:45: quality 0.2observe M31 20:55–22:15M42M42 19:05–19:20: quality 0.2M42 19:20–19:55: quality 0.3M42 19:55–21:35: quality 0.4M42 21:35–01:40: quality 0.3M42 01:40–02:35: quality 0.2M42 02:35–02:40: quality 0.1M45M45 17:40–18:15: quality 0.1M45 18:15–18:50: quality 0.3M45 18:50–19:40: quality 0.6M45 19:40–21:50: quality 0.5M45 21:50–00:20: quality 0.4M45 00:20–02:10: quality 0.3M45 02:10–02:40: quality 0.2observe M45 23:35–01:50NGC 7000NGC 7000 17:40–18:15: quality 0.1NGC 7000 18:15–18:50: quality 0.4NGC 7000 18:50–20:05: 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 18:15–19:35V1057 CygV1057 Cyg 17:40–18:15: quality 0.1V1057 Cyg 18:15–18:50: quality 0.4V1057 Cyg 18:50–20:05: 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 19:35–20:55M33M33 17:40–18:15: quality 0.1M33 18:15–18:50: quality 0.4M33 18:50–20:30: quality 0.7M33 20:30–22:15: quality 0.6M33 22:15–23:55: quality 0.5M33 23:55–00:20: quality 0.4M33 00:20–00:45: quality 0.3M33 00:45–00:55: quality 0.2observe M33 22:15–23:35scheduleNGC 7000V1057 CygM31M33M4518:0020:0022:0000:0002:0004:0006:00

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 NGC 7000 1.33 0.57
19:35–20:55 V1057 Cyg 1.33 0.57
20:55–22:15 M31 1.33 0.6
22:15–23:35 M33 1.33 0.51
23:35–01:50 M45 2.25 0.34
01:50–07:50 — nothing worth pointing at — 6.0

Targets

targetastronomyoverallbest windowhighestMoon sep.scheduled h
M31 Andromeda Galaxy 66 unknown 18:50–21:35 (good) 89.8° at 18:00 83.5° 1.33
M42 Great Orion Nebula 21 unknown 19:35–23:25 (marginal) 42.9° at 22:50 44.5° 0.0
M45 Seven Sisters 50 unknown 18:50–01:50 (marginal) 72.5° at 21:05 53.4° 2.25
NGC 7000 North America Nebula 31 unknown 18:50–20:15 (good) 87.2° at 14:15 107.4° 1.33
V1057 Cyg 31 unknown 18:50–20:15 (good) 87.3° at 14:15 107.4° 1.33
M33 Triangulum Pinwheel 65 unknown 18:50–21:35 (good) 79.2° at 18:50 79.1° 1.33

Left out

💡 API 
curl -sS "https://devops.majbase.com/rozhen-planner/plan-api?targets=M31,M42,M45,NGC%207000&date=2042-01-06"

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"}.