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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 Wednesday, 10 May 2028 · astronomical night 22:22 → 04:11 (5.82 h) · Moon 95% (waning gibbous) · weather: none — the schedule is astronomy only; overall conditions unknown

M31M31 04:10–04:15: quality 0.4M31 04:15–04:35: quality 0.2M31 04:35–05:00: quality 0.3M31 05:00–05:35: quality 0.1observe M31 04:10–04:15observe M31 04:55–05:00M42M45NGC 7000NGC 7000 00:15–00:20: quality 0.3NGC 7000 00:20–00:45: quality 0.4NGC 7000 00:45–01:05: quality 0.5NGC 7000 01:05–02:20: quality 0.6NGC 7000 02:20–04:15: quality 0.7NGC 7000 04:15–05:00: quality 0.4NGC 7000 05:00–05:35: quality 0.1observe NGC 7000 00:15–01:55observe NGC 7000 04:15–04:55V1057 CygV1057 Cyg 00:15–00:20: quality 0.3V1057 Cyg 00:20–00:45: quality 0.4V1057 Cyg 00:45–01:10: quality 0.5V1057 Cyg 01:10–02:20: quality 0.6V1057 Cyg 02:20–04:15: quality 0.7V1057 Cyg 04:15–05:00: quality 0.4V1057 Cyg 05:00–05:35: quality 0.1observe V1057 Cyg 01:55–04:10M33scheduleNGC 7000V1057 CygNGC 700022:0000:0002:0004:0006:00

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
20:25–00:15 — nothing worth pointing at — 3.83
00:15–01:55 NGC 7000 1.67 0.52
01:55–04:10 V1057 Cyg 2.25 0.68
04:10–04:15 M31 0.08 0.37
04:15–04:55 NGC 7000 0.67 0.38
04:55–05:00 M31 0.08 0.31
05:00–06:10 — nothing worth pointing at — 1.17

Targets

targetastronomyoverallbest windowhighestMoon sep.scheduled h
M31 Andromeda Galaxy 3 unknown 04:10–04:15 (marginal) 89.6° at 10:45 124.7° 0.17
M42 Great Orion Nebula 0 unknown — 42.9° at 15:40 147.8° 0.0
M45 Seven Sisters 0 unknown — 72.5° at 13:55 162.2° 0.0
NGC 7000 North America Nebula 53 unknown 01:20–04:15 (good) 87.2° at 07:05 88.3° 2.33
V1057 Cyg 53 unknown 01:20–04:15 (good) 87.3° at 07:05 88.2° 2.25
M33 Triangulum Pinwheel 0 unknown — 79.1° at 11:40 133.8° 0.0

Left out

💡 API 
curl -sS "https://devops.majbase.com/rozhen-planner/plan-api?targets=M31,M42,M45,NGC%207000&date=2028-05-10"

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"}.