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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, 07 December 2041 · astronomical night 18:30 → 05:55 (11.42 h) · Moon 100% (full moon) · weather: none — the schedule is astronomy only; overall conditions unknown

M31M31 17:25–18:00: quality 0.1M31 18:00–18:35: quality 0.3M31 18:35–19:15: quality 0.6M31 19:15–21:30: quality 0.5M31 21:30–00:20: quality 0.4M31 00:20–02:05: quality 0.3M31 02:05–02:40: quality 0.2observe M31 21:15–22:50observe M31 00:30–01:45M42M42 21:05–21:15: quality 0.1M42 21:15–03:30: quality 0.2M42 03:30–03:35: quality 0.3M42 03:35–04:40: quality 0.2M45M45 18:00–18:35: quality 0.2M45 18:35–19:40: quality 0.4M45 19:40–22:25: quality 0.3M45 22:25–04:35: quality 0.2M45 04:35–04:40: quality 0.1observe M45 21:10–21:15NGC 7000NGC 7000 17:25–18:00: quality 0.1NGC 7000 18:00–18:35: quality 0.4NGC 7000 18:35–18:50: quality 0.8NGC 7000 18:50–20:15: quality 0.7NGC 7000 20:15–21:45: quality 0.6NGC 7000 21:45–22:20: quality 0.5NGC 7000 22:20–22:45: quality 0.4NGC 7000 22:45–23:10: quality 0.3observe NGC 7000 18:00–19:35V1057 CygV1057 Cyg 17:25–18:00: quality 0.1V1057 Cyg 18:00–18:35: quality 0.4V1057 Cyg 18:35–18:50: quality 0.8V1057 Cyg 18:50–20:15: quality 0.7V1057 Cyg 20:15–21:45: quality 0.6V1057 Cyg 21:45–22:20: quality 0.5V1057 Cyg 22:20–22:45: quality 0.4V1057 Cyg 22:45–23:10: quality 0.3observe V1057 Cyg 19:35–21:10M33M33 17:25–18:00: quality 0.1M33 18:00–18:35: quality 0.3M33 18:35–20:15: quality 0.5M33 20:15–22:55: quality 0.4M33 22:55–02:05: quality 0.3M33 02:05–02:50: quality 0.2observe M33 22:50–00:30scheduleNGC 7000V1057 CygM31M33M3118:0020:0022:0000:0002:0004:0006:00

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
16:50–18:00 — nothing worth pointing at — 1.17
18:00–19:35 NGC 7000 1.58 0.61
19:35–21:10 V1057 Cyg 1.58 0.64
21:10–21:15 M45 0.08 0.3
21:15–22:50 M31 1.58 0.43
22:50–00:30 M33 1.67 0.33
00:30–01:45 M31 1.25 0.33
01:45–07:40 — nothing worth pointing at — 5.92

Targets

targetastronomyoverallbest windowhighestMoon sep.scheduled h
M31 Andromeda Galaxy 52 unknown 18:35–01:45 (marginal) 89.7° at 20:00 55.8° 2.83
M42 Great Orion Nebula 10 unknown — 42.9° at 00:50 32.5° 0.0
M45 Seven Sisters 26 unknown 18:35–21:15 (marginal) 72.5° at 23:00 18.7° 0.08
NGC 7000 North America Nebula 56 unknown 18:35–20:55 (good) 87.2° at 16:15 91.9° 1.58
V1057 Cyg 56 unknown 18:35–20:55 (good) 87.3° at 16:15 91.9° 1.58
M33 Triangulum Pinwheel 43 unknown 18:35–00:30 (marginal) 79.2° at 20:50 46.9° 1.67

Left out

💡 API 
curl -sS "https://devops.majbase.com/rozhen-planner/plan-api?targets=M31,M42,M45,NGC%207000&date=2041-12-07"

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"}.