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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, 21 December 2037 · astronomical night 18:34 → 06:04 (11.51 h) · Moon 100% (full moon) · weather: none — the schedule is astronomy only; overall conditions unknown

M31M31 17:30–18:05: quality 0.1M31 18:05–18:35: quality 0.3M31 18:35–19:45: quality 0.6M31 19:45–22:20: quality 0.5M31 22:20–00:45: quality 0.4M31 00:45–01:25: quality 0.3M31 01:25–01:45: quality 0.2observe M31 21:00–22:25M42M42 20:10–20:15: quality 0.1M42 20:15–03:40: quality 0.2M42 03:40–03:45: quality 0.1M45M45 17:30–18:05: quality 0.1M45 18:05–18:35: quality 0.2M45 18:35–19:55: quality 0.4M45 19:55–22:20: quality 0.3M45 22:20–03:40: quality 0.2M45 03:40–03:45: quality 0.1observe M45 20:55–21:00NGC 7000NGC 7000 17:30–18:05: quality 0.1NGC 7000 18:05–18:35: quality 0.4NGC 7000 18:35–18:40: quality 0.8NGC 7000 18:40–20:05: quality 0.7NGC 7000 20:05–21:15: quality 0.6NGC 7000 21:15–21:35: quality 0.5NGC 7000 21:35–22:00: quality 0.4NGC 7000 22:00–22:15: quality 0.3observe NGC 7000 19:30–20:55V1057 CygV1057 Cyg 17:30–18:05: quality 0.1V1057 Cyg 18:05–18:35: quality 0.4V1057 Cyg 18:35–18:40: quality 0.8V1057 Cyg 18:40–20:05: quality 0.7V1057 Cyg 20:05–21:15: quality 0.6V1057 Cyg 21:15–21:35: quality 0.5V1057 Cyg 21:35–22:00: quality 0.4V1057 Cyg 22:00–22:15: quality 0.3observe V1057 Cyg 18:05–19:30M33M33 17:30–18:05: quality 0.1M33 18:05–18:35: quality 0.3M33 18:35–18:45: quality 0.6M33 18:45–20:50: quality 0.5M33 20:50–23:40: quality 0.4M33 23:40–01:25: quality 0.3M33 01:25–01:55: quality 0.2observe M33 22:25–01:05scheduleV1057 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 0.61
19:30–20:55 NGC 7000 1.42 0.64
20:55–21:00 M45 0.08 0.3
21:00–22:25 M31 1.42 0.48
22:25–01:05 M33 2.67 0.35
01:05–07:50 — nothing worth pointing at — 6.75

Targets

targetastronomyoverallbest windowhighestMoon sep.scheduled h
M31 Andromeda Galaxy 52 unknown 18:35–18:45 (good) 89.6° at 19:05 62.7° 1.42
M42 Great Orion Nebula 10 unknown — 42.9° at 23:55 26.3° 0.0
M45 Seven Sisters 25 unknown 18:35–21:00 (marginal) 72.5° at 22:05 23.8° 0.08
NGC 7000 North America Nebula 46 unknown 18:35–20:50 (good) 87.2° at 15:20 99.1° 1.42
V1057 Cyg 46 unknown 18:35–20:50 (good) 87.3° at 15:20 99.1° 1.42
M33 Triangulum Pinwheel 44 unknown 18:35–01:05 (marginal) 79.2° at 19:55 53.2° 2.67

Left out

💡 API 
curl -sS "https://devops.majbase.com/rozhen-planner/plan-api?targets=M31,M42,M45,NGC%207000&date=2037-12-21"

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"}.