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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 Sunday, 28 March 2027 · astronomical night 21:16 → 05:35 (8.31 h) · Moon 60% (waning gibbous) · weather: none — the schedule is astronomy only; overall conditions unknown

M31M31 20:10–20:25: quality 0.1M42M42 20:10–20:45: quality 0.1M42 20:45–21:20: quality 0.4M42 21:20–21:30: quality 0.8M42 21:30–21:45: quality 0.7M42 21:45–22:00: quality 0.6M42 22:00–22:15: quality 0.5M42 22:15–22:25: quality 0.4observe M42 22:00–22:25M45M45 20:10–20:45: quality 0.1M45 20:45–21:20: quality 0.4M45 21:20–21:35: quality 0.8M45 21:35–21:50: quality 0.7M45 21:50–22:05: quality 0.6M45 22:05–22:15: quality 0.5M45 22:15–22:25: quality 0.4observe M45 20:45–22:00NGC 7000NGC 7000 03:05–03:25: quality 0.4NGC 7000 03:25–03:45: quality 0.5NGC 7000 03:45–04:05: quality 0.6NGC 7000 04:05–05:40: quality 0.7NGC 7000 05:40–06:10: quality 0.4NGC 7000 06:10–06:45: quality 0.1observe NGC 7000 03:05–04:20V1057 CygV1057 Cyg 03:05–03:25: quality 0.4V1057 Cyg 03:25–03:45: quality 0.5V1057 Cyg 03:45–04:05: quality 0.6V1057 Cyg 04:05–05:40: quality 0.7V1057 Cyg 05:40–06:10: quality 0.4V1057 Cyg 06:10–06:45: quality 0.1observe V1057 Cyg 04:20–06:10M33M33 20:10–20:35: 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
19:40–20:45 — nothing worth pointing at — 1.08
20:45–22:00 M45 1.25 0.58
22:00–22:25 M42 0.42 0.48
22:25–03:05 — nothing worth pointing at — 4.67
03:05–04:20 NGC 7000 1.25 0.53
04:20–06:10 V1057 Cyg 1.83 0.62
06:10–07:10 — nothing worth pointing at — 1.0

Targets

targetastronomyoverallbest windowhighestMoon sep.scheduled h
M31 Andromeda Galaxy 0 unknown — 89.5° at 13:45 118.7° 0.0
M42 Great Orion Nebula 19 unknown 21:20–21:55 (good) 42.9° at 18:35 147.1° 0.42
M45 Seven Sisters 20 unknown 21:20–21:55 (good) 72.5° at 16:45 153.9° 1.25
NGC 7000 North America Nebula 35 unknown 03:55–05:40 (good) 87.3° at 09:55 84.8° 1.25
V1057 Cyg 35 unknown 03:55–05:40 (good) 87.3° at 09:55 84.7° 1.83
M33 Triangulum Pinwheel 0 unknown — 79.1° at 14:35 126.4° 0.0

Left out

💡 API 
curl -sS "https://devops.majbase.com/rozhen-planner/plan-api?targets=M31,M42,M45,NGC%207000&date=2027-03-28"

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"}.