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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, 23 April 2028 · astronomical night 21:55 → 04:42 (6.8 h) · Moon 1% (new moon) · weather: none — the schedule is astronomy only; overall conditions unknown

M31M31 05:15–05:25: quality 0.2M31 05:25–06:00: quality 0.1M42M45NGC 7000NGC 7000 01:20–01:30: quality 0.4NGC 7000 01:30–01:45: quality 0.5NGC 7000 01:45–02:05: quality 0.6NGC 7000 02:05–02:20: quality 0.7NGC 7000 02:20–03:15: quality 0.8NGC 7000 03:15–04:45: quality 0.9NGC 7000 04:45–05:25: quality 0.5NGC 7000 05:25–05:55: quality 0.2NGC 7000 05:55–06:00: quality 0.1observe NGC 7000 01:20–03:25V1057 CygV1057 Cyg 01:20–01:30: quality 0.4V1057 Cyg 01:30–01:45: quality 0.5V1057 Cyg 01:45–02:05: quality 0.6V1057 Cyg 02:05–02:20: quality 0.7V1057 Cyg 02:20–03:15: quality 0.8V1057 Cyg 03:15–04:45: quality 0.9V1057 Cyg 04:45–05:25: quality 0.5V1057 Cyg 05:25–05:30: quality 0.1V1057 Cyg 05:30–05:55: quality 0.2V1057 Cyg 05:55–06:00: quality 0.1observe V1057 Cyg 03:25–05:25M33scheduleNGC 7000V1057 Cyg22:0000:0002:0004:0006:00

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
20:10–01:20 — nothing worth pointing at — 5.17
01:20–03:25 NGC 7000 2.08 0.7
03:25–05:25 V1057 Cyg 2.0 0.77
05:25–06:30 — nothing worth pointing at — 1.08

Targets

targetastronomyoverallbest windowhighestMoon sep.scheduled h
M31 Andromeda Galaxy 0 unknown — 89.6° at 11:55 28.6° 0.0
M42 Great Orion Nebula 0 unknown — 42.9° at 16:50 66.0° 0.0
M45 Seven Sisters 0 unknown — 72.5° at 15:00 35.7° 0.0
NGC 7000 North America Nebula 73 unknown 01:55–04:45 (good) 87.3° at 08:10 62.9° 2.08
V1057 Cyg 73 unknown 01:55–04:45 (good) 87.3° at 08:10 62.9° 2.0
M33 Triangulum Pinwheel 0 unknown — 79.1° at 12:50 17.0° 0.0

Left out

💡 API 
curl -sS "https://devops.majbase.com/rozhen-planner/plan-api?targets=M31,M42,M45,NGC%207000&date=2028-04-23"

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"}.