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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, 23 December 2045 · astronomical night 18:35 → 06:05 (11.5 h) · Moon 100% (full moon) · weather: none — the schedule is astronomy only; overall conditions unknown

M31M31 17:30–18:05: quality 0.1M31 18:05–18:40: quality 0.3M31 18:40–20:15: quality 0.6M31 20:15–22:35: quality 0.5M31 22:35–00:40: quality 0.4M31 00:40–01:15: quality 0.3M31 01:15–01:40: quality 0.2observe M31 21:10–22:35M42M42 20:00–20:05: quality 0.1M42 20:05–21:05: quality 0.2M42 21:05–21:15: quality 0.3M42 21:15–03:25: quality 0.2M42 03:25–03:35: quality 0.1M45M45 17:30–18:05: quality 0.1M45 18:05–18:40: quality 0.2M45 18:40–20:15: quality 0.4M45 20:15–22:30: quality 0.3M45 22:30–03:25: quality 0.2M45 03:25–03:40: quality 0.1observe M45 20:55–21:10NGC 7000NGC 7000 17:30–18:05: quality 0.1NGC 7000 18:05–18:40: quality 0.4NGC 7000 18:40–19:55: quality 0.7NGC 7000 19:55–21:05: quality 0.6NGC 7000 21:05–21:25: quality 0.5NGC 7000 21:25–21:50: quality 0.4NGC 7000 21:50–22:05: quality 0.3observe NGC 7000 19:30–20:55V1057 CygV1057 Cyg 17:30–18:05: quality 0.1V1057 Cyg 18:05–18:40: quality 0.4V1057 Cyg 18:40–19:55: quality 0.7V1057 Cyg 19:55–21:05: quality 0.6V1057 Cyg 21:05–21:25: quality 0.5V1057 Cyg 21:25–21:50: quality 0.4V1057 Cyg 21:50–22:05: quality 0.3observe V1057 Cyg 18:05–19:30M33M33 17:30–18:05: quality 0.1M33 18:05–18:40: quality 0.3M33 18:40–19:20: quality 0.6M33 19:20–21:50: quality 0.5M33 21:50–00:15: quality 0.4M33 00:15–01:20: quality 0.3M33 01:20–01:50: quality 0.2observe M33 22:35–01:05scheduleV1057 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
16:50–18:05 — nothing worth pointing at — 1.25
18:05–19:30 V1057 Cyg 1.42 0.58
19:30–20:55 NGC 7000 1.42 0.63
20:55–21:10 M45 0.25 0.31
21:10–22:35 M31 1.42 0.49
22:35–01:05 M33 2.5 0.36
01:05–07:50 — nothing worth pointing at — 6.75

Targets

targetastronomyoverallbest windowhighestMoon sep.scheduled h
M31 Andromeda Galaxy 53 unknown 18:40–19:05 (good) 89.8° at 18:55 65.8° 1.42
M42 Great Orion Nebula 10 unknown — 42.9° at 23:45 33.1° 0.0
M45 Seven Sisters 25 unknown 18:40–21:10 (marginal) 72.6° at 22:00 31.3° 0.25
NGC 7000 North America Nebula 42 unknown 18:40–20:40 (good) 87.2° at 15:10 98.4° 1.42
V1057 Cyg 42 unknown 18:40–20:40 (good) 87.2° at 15:10 98.4° 1.42
M33 Triangulum Pinwheel 47 unknown 18:40–01:05 (marginal) 79.2° at 19:45 58.6° 2.5

Left out

💡 API 
curl -sS "https://devops.majbase.com/rozhen-planner/plan-api?targets=M31,M42,M45,NGC%207000&date=2045-12-23"

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"}.