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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 Thursday, 23 March 2028 · astronomical night 20:10 → 04:43 (8.54 h) · Moon 5% (waning crescent) · weather: none — the schedule is astronomy only; overall conditions unknown

M31M31 19:05–19:40: quality 0.1M42M42 19:05–19:40: quality 0.1M42 19:40–20:15: quality 0.4M42 20:15–20:45: quality 0.8M42 20:45–21:00: quality 0.7M42 21:00–21:20: quality 0.6M42 21:20–21:35: quality 0.5M42 21:35–21:40: quality 0.4observe M42 20:55–21:40M45M45 19:05–19:40: quality 0.1M45 19:40–20:15: quality 0.4M45 20:15–20:55: quality 0.8M45 20:55–21:05: quality 0.7M45 21:05–21:20: quality 0.6M45 21:20–21:35: quality 0.5M45 21:35–21:40: quality 0.4observe M45 19:40–20:55NGC 7000NGC 7000 02:20–02:30: quality 0.4NGC 7000 02:30–02:50: quality 0.5NGC 7000 02:50–03:05: quality 0.6NGC 7000 03:05–03:20: quality 0.7NGC 7000 03:20–04:15: quality 0.8NGC 7000 04:15–04:45: 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 02:20–03:35V1057 CygV1057 Cyg 02:20–02:30: quality 0.4V1057 Cyg 02:30–02:50: quality 0.5V1057 Cyg 02:50–03:05: quality 0.6V1057 Cyg 03:05–03:20: quality 0.7V1057 Cyg 03:20–04:20: 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 03:35–05:20M33M33 19:05–19:40: quality 0.1M33 19:40–19:50: 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
19:40–20:55 M45 1.25 0.63
20:55–21:40 M42 0.75 0.55
21:40–02:20 — nothing worth pointing at — 4.67
02:20–03:35 NGC 7000 1.25 0.61
03:35–05:20 V1057 Cyg 1.75 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 54.5° 0.0
M42 Great Orion Nebula 26 unknown 20:15–21:10 (good) 42.9° at 17:50 103.7° 0.75
M45 Seven Sisters 27 unknown 20:15–21:15 (good) 72.5° at 16:05 80.5° 1.25
NGC 7000 North America Nebula 45 unknown 02:55–04:45 (good) 87.2° at 09:10 54.3° 1.25
V1057 Cyg 45 unknown 02:55–04:45 (good) 87.3° at 09:10 54.3° 1.75
M33 Triangulum Pinwheel 1 unknown — 79.1° at 13:50 55.3° 0.0

Left out

💡 API 
curl -sS "https://devops.majbase.com/rozhen-planner/plan-api?targets=M31,M42,M45,NGC%207000&date=2028-03-23"

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"}.