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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 Saturday, 08 January 2039 · astronomical night 18:46 → 06:08 (11.36 h) · Moon 98% (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 0.3M31 18:50–20:00: quality 0.6M31 20:00–22:05: quality 0.5M31 22:05–23:45: quality 0.4M31 23:45–00:20: quality 0.3M31 00:20–00:35: quality 0.2observe M31 20:35–21:45M42M42 19:00–20:00: quality 0.2M42 20:00–20:25: quality 0.3M42 20:25–02:25: quality 0.2M42 02:25–02:35: quality 0.1M45M45 17:40–18:15: quality 0.1M45 18:15–18:50: quality 0.2M45 18:50–19:40: quality 0.4M45 19:40–22:45: quality 0.3M45 22:45–02:30: quality 0.2M45 02:30–02:35: quality 0.1NGC 7000NGC 7000 17:40–18:15: quality 0.1NGC 7000 18:15–18:30: quality 0.4NGC 7000 18:30–18:50: quality 0.3NGC 7000 18:50–19:15: quality 0.7NGC 7000 19:15–20:05: quality 0.6NGC 7000 20:05–20:30: quality 0.5NGC 7000 20:30–20:50: quality 0.4NGC 7000 20:50–21:05: quality 0.3NGC 7000 07:15–07:20: quality 0.1observe NGC 7000 19:25–20:35V1057 CygV1057 Cyg 17:40–18:15: quality 0.1V1057 Cyg 18:15–18:30: quality 0.4V1057 Cyg 18:30–18:50: quality 0.3V1057 Cyg 18:50–19:15: quality 0.7V1057 Cyg 19:15–20:05: quality 0.6V1057 Cyg 20:05–20:30: quality 0.5V1057 Cyg 20:30–20:50: quality 0.4V1057 Cyg 20:50–21:05: quality 0.3V1057 Cyg 07:15–07:20: quality 0.1observe V1057 Cyg 18:15–19:25M33M33 17:40–18:15: quality 0.1M33 18:15–18:50: quality 0.3M33 18:50–21:25: quality 0.5M33 21:25–23:50: quality 0.4M33 23:50–00:25: quality 0.3M33 00:25–00:45: quality 0.2observe M33 21:45–00:05scheduleV1057 CygNGC 7000M31M3318:0020:0022:0000:0002:0004:0006:00

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
18:15–19:25 V1057 Cyg 1.17 0.5
19:25–20:35 NGC 7000 1.17 0.56
20:35–21:45 M31 1.17 0.5
21:45–00:05 M33 2.33 0.38
00:05–07:50 — nothing worth pointing at — 7.75

Targets

targetastronomyoverallbest windowhighestMoon sep.scheduled h
M31 Andromeda Galaxy 43 unknown 18:50–00:00 (marginal) 89.7° at 17:55 67.7° 1.17
M42 Great Orion Nebula 10 unknown — 42.9° at 22:45 29.6° 0.0
M45 Seven Sisters 22 unknown 18:50–20:45 (marginal) 72.5° at 20:55 31.3° 0.0
NGC 7000 North America Nebula 25 unknown 18:50–19:55 (good) 87.2° at 14:10 101.3° 1.17
V1057 Cyg 25 unknown 18:50–19:55 (good) 87.3° at 14:10 101.4° 1.17
M33 Triangulum Pinwheel 37 unknown 18:50–00:05 (marginal) 79.2° at 18:45 59.6° 2.33

Left out

💡 API 
curl -sS "https://devops.majbase.com/rozhen-planner/plan-api?targets=M31,M42,M45,NGC%207000&date=2039-01-08"

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"}.