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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, 23 March 2037 · astronomical night 20:10 → 04:43 (8.55 h) · Moon 41% (waxing crescent) · weather: none — the schedule is astronomy only; overall conditions unknown

M31M31 19:05–19:40: quality 0.1M31 19:40–19:45: quality 0.2M42M42 19:05–19:40: quality 0.1M42 19:40–20:15: quality 0.3M42 20:15–20:45: quality 0.6M42 20:45–21:10: quality 0.5M42 21:10–21:30: quality 0.4M42 21:30–21:40: quality 0.3observe M42 21:00–21:40M45M45 19:05–19:40: quality 0.1M45 19:40–20:15: quality 0.3M45 20:15–20:55: quality 0.6M45 20:55–21:15: quality 0.5M45 21:15–21:30: quality 0.4M45 21:30–21:40: quality 0.3observe M45 19:40–20:10observe M45 20:15–21:00NGC 7000NGC 7000 02:25–02:30: quality 0.4NGC 7000 02:30–02:50: quality 0.5NGC 7000 02:50–03:05: quality 0.6NGC 7000 03:05–03:25: quality 0.7NGC 7000 03:25–04:20: quality 0.8NGC 7000 04:20–04:45: quality 0.9NGC 7000 04:45–05:05: quality 0.4NGC 7000 05:05–05:20: quality 0.5NGC 7000 05:20–05:50: quality 0.1observe NGC 7000 02:25–03:40V1057 CygV1057 Cyg 02:25–02:30: quality 0.4V1057 Cyg 02:30–02:50: quality 0.5V1057 Cyg 02:50–03:05: quality 0.6V1057 Cyg 03:05–03:25: quality 0.7V1057 Cyg 03:25–04:20: quality 0.8V1057 Cyg 04:20–04:45: quality 0.9V1057 Cyg 04:45–05:05: quality 0.4V1057 Cyg 05:05–05:20: quality 0.5V1057 Cyg 05:20–05:50: quality 0.1observe V1057 Cyg 03:40–05:20M33M33 19:05–19:40: quality 0.1M33 19:40–19:55: quality 0.2scheduleM45M42NGC 7000V1057 Cyg20:0022:0000:0002:0004:0006:00

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
18:35–19:40 — nothing worth pointing at — 1.08
19:40–20:10 M45 0.5 0.31
20:10–20:15 — nothing worth pointing at — 0.08
20:15–21:00 M45 0.75 0.58
21:00–21:40 M42 0.67 0.4
21:40–02:25 — nothing worth pointing at — 4.75
02:25–03:40 NGC 7000 1.25 0.63
03:40–05:20 V1057 Cyg 1.67 0.71
05:20–06:20 — nothing worth pointing at — 1.0

Targets

targetastronomyoverallbest windowhighestMoon sep.scheduled h
M31 Andromeda Galaxy 0 unknown — 89.7° at 13:00 63.9° 0.0
M42 Great Orion Nebula 13 unknown 20:15–21:40 (marginal) 42.9° at 17:50 25.2° 0.67
M45 Seven Sisters 14 unknown 20:15–21:40 (marginal) 72.5° at 16:05 24.6° 1.25
NGC 7000 North America Nebula 45 unknown 03:00–04:45 (good) 87.2° at 09:15 100.3° 1.25
V1057 Cyg 44 unknown 03:00–04:45 (good) 87.3° at 09:15 100.3° 1.67
M33 Triangulum Pinwheel 0 unknown — 79.2° at 13:50 54.2° 0.0

Left out

💡 API 
curl -sS "https://devops.majbase.com/rozhen-planner/plan-api?targets=M31,M42,M45,NGC%207000&date=2037-03-23"

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"}.