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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, 29 March 2031 · astronomical night 20:17 → 05:33 (8.26 h) · Moon 40% (waxing crescent) · weather: none — the schedule is astronomy only; overall conditions unknown

M31M31 19:15–19:20: quality 0.1M42M42 19:15–19:45: quality 0.1M42 19:45–20:20: quality 0.3M42 20:20–20:25: quality 0.6M42 20:25–20:45: quality 0.5M42 20:45–21:10: quality 0.4M42 21:10–21:20: quality 0.3M45M45 19:15–19:45: quality 0.1M45 19:45–20:20: quality 0.3M45 20:20–20:30: quality 0.6M45 20:30–20:50: quality 0.5M45 20:50–21:10: quality 0.4M45 21:10–21:20: quality 0.3observe M45 19:45–19:50observe M45 20:20–21:20NGC 7000NGC 7000 02:00–02:10: quality 0.4NGC 7000 02:10–02:25: quality 0.5NGC 7000 02:25–02:45: quality 0.6NGC 7000 02:45–04:00: quality 0.7NGC 7000 04:00–04:55: quality 0.8NGC 7000 04:55–05:35: quality 0.9NGC 7000 05:35–05:40: quality 0.4NGC 7000 05:40–06:10: quality 0.5NGC 7000 06:10–06:45: quality 0.1observe NGC 7000 02:00–04:05V1057 CygV1057 Cyg 02:00–02:10: quality 0.4V1057 Cyg 02:10–02:30: quality 0.5V1057 Cyg 02:30–02:45: quality 0.6V1057 Cyg 02:45–04:00: quality 0.7V1057 Cyg 04:00–04:55: quality 0.8V1057 Cyg 04:55–05:35: quality 0.9V1057 Cyg 05:35–05:40: quality 0.4V1057 Cyg 05:40–06:10: quality 0.5V1057 Cyg 06:10–06:45: quality 0.1observe V1057 Cyg 04:05–06:10M33M33 19:15–19:25: quality 0.1scheduleM45NGC 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
18:40–19:45 — nothing worth pointing at — 1.08
19:45–19:50 M45 0.08 0.3
19:50–20:20 — nothing worth pointing at — 0.5
20:20–21:20 M45 1.0 0.45
21:20–02:00 — nothing worth pointing at — 4.67
02:00–04:05 NGC 7000 1.08 0.58
04:05–06:10 V1057 Cyg 2.08 0.73
06:10–07:10 — nothing worth pointing at — 1.0

Targets

targetastronomyoverallbest windowhighestMoon sep.scheduled h
M31 Andromeda Galaxy 0 unknown — 89.7° at 12:40 66.3° 0.0
M42 Great Orion Nebula 9 unknown 20:20–21:20 (marginal) 42.9° at 17:30 26.6° 0.0
M45 Seven Sisters 10 unknown 20:20–21:20 (marginal) 72.5° at 15:40 28.2° 1.08
NGC 7000 North America Nebula 50 unknown 02:35–05:35 (good) 87.2° at 09:50 101.5° 1.08
V1057 Cyg 50 unknown 02:35–05:35 (good) 87.3° at 09:50 101.5° 2.08
M33 Triangulum Pinwheel 0 unknown — 79.1° at 13:30 57.3° 0.0

Left out

💡 API 
curl -sS "https://devops.majbase.com/rozhen-planner/plan-api?targets=M31,M42,M45,NGC%207000&date=2031-03-29"

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"}.