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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 Friday, 31 March 2028 · astronomical night 21:21 → 05:27 (8.11 h) · Moon 30% (waxing crescent) · weather: none — the schedule is astronomy only; overall conditions unknown

M31M42M42 20:15–20:50: quality 0.1M42 20:50–21:25: quality 0.3M42 21:25–21:45: quality 0.5M42 21:45–22:05: quality 0.4M42 22:05–22:10: quality 0.3observe M42 22:05–22:10M45M45 20:15–20:50: quality 0.1M45 20:50–21:25: quality 0.3M45 21:25–21:30: quality 0.6M45 21:30–21:50: quality 0.5M45 21:50–22:05: quality 0.4M45 22:05–22:10: quality 0.3observe M45 20:50–21:20observe M45 21:25–22:05NGC 7000NGC 7000 02:50–03:00: quality 0.4NGC 7000 03:00–03:15: quality 0.5NGC 7000 03:15–03:35: quality 0.6NGC 7000 03:35–03:50: quality 0.7NGC 7000 03:50–04:45: quality 0.8NGC 7000 04:45–05:30: quality 0.9NGC 7000 05:30–06:05: quality 0.5NGC 7000 06:05–06:40: quality 0.1observe NGC 7000 02:50–04:00V1057 CygV1057 Cyg 02:50–03:00: quality 0.4V1057 Cyg 03:00–03:15: quality 0.5V1057 Cyg 03:15–03:35: quality 0.6V1057 Cyg 03:35–03:50: quality 0.7V1057 Cyg 03:50–04:45: quality 0.8V1057 Cyg 04:45–05:30: quality 0.9V1057 Cyg 05:30–06:05: quality 0.5V1057 Cyg 06:05–06:40: quality 0.1observe V1057 Cyg 04:00–06:05M33M33 20:15–20:20: 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
19:45–20:50 — nothing worth pointing at — 1.08
20:50–21:20 M45 0.5 0.32
21:20–21:25 — nothing worth pointing at — 0.08
21:25–22:05 M45 0.67 0.47
22:05–22:10 M42 0.08 0.34
22:10–02:50 — nothing worth pointing at — 4.67
02:50–04:00 NGC 7000 1.17 0.6
04:00–06:05 V1057 Cyg 2.08 0.74
06:05–07:05 — nothing worth pointing at — 1.0

Targets

targetastronomyoverallbest windowhighestMoon sep.scheduled h
M31 Andromeda Galaxy 0 unknown — 89.5° at 13:30 55.9° 0.0
M42 Great Orion Nebula 8 unknown 21:25–22:10 (marginal) 42.9° at 18:20 32.3° 0.08
M45 Seven Sisters 8 unknown 21:25–22:10 (marginal) 72.5° at 16:30 18.7° 1.17
NGC 7000 North America Nebula 52 unknown 03:25–05:30 (good) 87.3° at 09:40 92.0° 1.17
V1057 Cyg 52 unknown 03:25–05:30 (good) 87.3° at 09:40 92.0° 2.08
M33 Triangulum Pinwheel 0 unknown — 79.1° at 14:20 46.9° 0.0

Left out

💡 API 
curl -sS "https://devops.majbase.com/rozhen-planner/plan-api?targets=M31,M42,M45,NGC%207000&date=2028-03-31"

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"}.