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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, 17 December 2040 · astronomical night 18:32 → 06:02 (11.5 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 18:35–19:00: quality 0.6M31 19:00–21:25: quality 0.5M31 21:25–00:15: quality 0.4M31 00:15–01:30: quality 0.3M31 01:30–02:00: quality 0.2observe M31 21:00–22:30observe M31 00:35–01:10M42M42 20:25–20:35: quality 0.1M42 20:35–04:00: quality 0.2M45M45 17:25–18:00: quality 0.1M45 18:00–18:35: quality 0.2M45 18:35–19:20: quality 0.4M45 19:20–22:00: quality 0.3M45 22:00–03:55: quality 0.2M45 03:55–04:00: quality 0.1NGC 7000NGC 7000 17:25–18:00: quality 0.1NGC 7000 18:00–18:35: quality 0.4NGC 7000 18:35–19:45: quality 0.7NGC 7000 19:45–21:20: quality 0.6NGC 7000 21:20–21:45: quality 0.5NGC 7000 21:45–22:10: quality 0.4NGC 7000 22:10–22:30: quality 0.3observe NGC 7000 18:00–19:30V1057 CygV1057 Cyg 17:25–18:00: quality 0.1V1057 Cyg 18:00–18:35: quality 0.4V1057 Cyg 18:35–19:45: quality 0.7V1057 Cyg 19:45–21:20: quality 0.6V1057 Cyg 21:20–21:45: quality 0.5V1057 Cyg 21:45–22:10: quality 0.4V1057 Cyg 22:10–22:30: quality 0.3observe V1057 Cyg 19:30–21:00M33M33 17:25–18:00: quality 0.1M33 18:00–18:35: quality 0.3M33 18:35–20:00: quality 0.5M33 20:00–22:50: quality 0.4M33 22:50–01:30: quality 0.3M33 01:30–02:10: quality 0.2observe M33 22:30–00:35scheduleNGC 7000V1057 CygM31M3318:0020:0022:0000:0002:0004:0006:00

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
18:00–19:30 NGC 7000 1.5 0.58
19:30–21:00 V1057 Cyg 1.5 0.62
21:00–22:30 M31 1.5 0.44
22:30–00:35 M33 2.08 0.33
00:35–01:10 M31 0.58 0.33
01:10–07:45 — nothing worth pointing at — 6.58

Targets

targetastronomyoverallbest windowhighestMoon sep.scheduled h
M31 Andromeda Galaxy 47 unknown 18:35–01:10 (marginal) 89.6° at 19:20 57.8° 2.08
M42 Great Orion Nebula 10 unknown — 42.9° at 00:10 31.1° 0.0
M45 Seven Sisters 24 unknown 18:35–20:45 (marginal) 72.5° at 22:20 20.3° 0.0
NGC 7000 North America Nebula 47 unknown 18:35–20:30 (good) 87.2° at 15:35 93.8° 1.5
V1057 Cyg 47 unknown 18:35–20:30 (good) 87.3° at 15:35 93.8° 1.5
M33 Triangulum Pinwheel 39 unknown 18:35–00:35 (marginal) 79.2° at 20:10 48.8° 2.08

Left out

💡 API 
curl -sS "https://devops.majbase.com/rozhen-planner/plan-api?targets=M31,M42,M45,NGC%207000&date=2040-12-17"

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"}.