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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 Friday, 21 December 2029 · astronomical night 18:34 → 06:04 (11.51 h) · Moon 99% (full moon) · weather: none — the schedule is astronomy only; overall conditions unknown

M31M31 17:30–17:35: quality 0.2M31 17:35–18:05: quality 0.1M31 18:05–18:35: quality 0.4M31 18:35–20:40: quality 0.7M31 20:40–22:40: quality 0.6M31 22:40–00:35: quality 0.5M31 00:35–01:05: quality 0.4M31 01:05–01:35: quality 0.3M31 01:35–01:45: quality 0.2observe M31 21:05–22:35observe M31 00:50–01:20M42M42 20:10–20:45: quality 0.2M42 20:45–23:10: quality 0.3M42 23:10–03:30: quality 0.2M42 03:30–03:45: quality 0.1M45M45 17:30–18:05: quality 0.1M45 18:05–18:35: quality 0.3M45 18:35–20:55: quality 0.5M45 20:55–23:05: quality 0.4M45 23:05–03:00: quality 0.3M45 03:00–03:45: quality 0.2observe M45 00:05–00:50NGC 7000NGC 7000 17:30–17:35: quality 0.2NGC 7000 17:35–18:05: quality 0.1NGC 7000 18:05–18:35: quality 0.4NGC 7000 18:35–19:35: quality 0.8NGC 7000 19:35–21:00: quality 0.7NGC 7000 21:00–21:25: quality 0.6NGC 7000 21:25–21:45: quality 0.5NGC 7000 21:45–22:05: quality 0.4NGC 7000 22:05–22:15: quality 0.3observe NGC 7000 19:35–21:05V1057 CygV1057 Cyg 17:30–17:35: quality 0.2V1057 Cyg 17:35–18:05: quality 0.1V1057 Cyg 18:05–18:35: quality 0.4V1057 Cyg 18:35–19:35: quality 0.8V1057 Cyg 19:35–21:00: quality 0.7V1057 Cyg 21:00–21:25: quality 0.6V1057 Cyg 21:25–21:45: quality 0.5V1057 Cyg 21:45–22:05: quality 0.4V1057 Cyg 22:05–22:15: quality 0.3observe V1057 Cyg 18:05–19:35M33M33 17:30–18:05: quality 0.1M33 18:05–18:35: quality 0.4M33 18:35–19:45: quality 0.7M33 19:45–22:20: quality 0.6M33 22:20–00:00: quality 0.5M33 00:00–01:15: quality 0.4M33 01:15–01:40: quality 0.3M33 01:40–01:55: quality 0.2observe M33 22:35–00:05observe M33 01:20–01:30scheduleV1057 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
16:50–18:05 — nothing worth pointing at — 1.25
18:05–19:35 V1057 Cyg 1.5 0.67
19:35–21:05 NGC 7000 1.5 0.7
21:05–22:35 M31 1.5 0.6
22:35–00:05 M33 1.5 0.49
00:05–00:50 M45 0.75 0.31
00:50–01:20 M31 0.5 0.36
01:20–01:30 M33 0.17 0.31
01:30–07:50 — nothing worth pointing at — 6.33

Targets

targetastronomyoverallbest windowhighestMoon sep.scheduled h
M31 Andromeda Galaxy 73 unknown 18:35–21:55 (good) 89.6° at 19:05 77.2° 2.0
M42 Great Orion Nebula 13 unknown — 42.9° at 23:55 32.4° 0.0
M45 Seven Sisters 46 unknown 18:35–00:50 (marginal) 72.5° at 22:05 42.1° 0.75
NGC 7000 North America Nebula 55 unknown 18:35–21:15 (good) 87.2° at 15:20 107.8° 1.5
V1057 Cyg 55 unknown 18:35–21:15 (good) 87.3° at 15:20 107.9° 1.5
M33 Triangulum Pinwheel 70 unknown 18:35–21:00 (good) 79.1° at 19:55 70.1° 1.67

Left out

💡 API 
curl -sS "https://devops.majbase.com/rozhen-planner/plan-api?targets=M31,M42,M45,NGC%207000&date=2029-12-21"

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"}.