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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, 08 April 2027 · astronomical night 21:31 → 05:13 (7.71 h) · Moon 5% (waxing crescent) · weather: none — the schedule is astronomy only; overall conditions unknown

M31M31 06:20–06:25: quality 0.1M42M42 20:25–21:00: quality 0.1M42 21:00–21:25: quality 0.3M42 21:25–21:35: quality 0.2M42 21:35–21:40: quality 0.4observe M42 21:35–21:40M45M45 20:25–21:00: quality 0.1M45 21:00–21:25: quality 0.3M45 21:25–21:35: quality 0.2M45 21:35–21:40: quality 0.4observe M45 21:00–21:10NGC 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 04:15–05:15: quality 0.9NGC 7000 05:15–05:50: quality 0.5NGC 7000 05:50–06:25: quality 0.1observe NGC 7000 02:20–03:20V1057 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 04:20–05:15: quality 0.9V1057 Cyg 05:15–05:50: quality 0.5V1057 Cyg 05:50–06:25: quality 0.1observe V1057 Cyg 03:20–05:50M33scheduleNGC 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
19:50–21:00 — nothing worth pointing at — 1.17
21:00–21:10 M45 0.17 0.32
21:10–21:35 — nothing worth pointing at — 0.42
21:35–21:40 M42 0.08 0.42
21:40–02:20 — nothing worth pointing at — 4.67
02:20–03:20 NGC 7000 1.0 0.56
03:20–05:50 V1057 Cyg 2.5 0.76
05:50–06:55 — nothing worth pointing at — 1.08

Targets

targetastronomyoverallbest windowhighestMoon sep.scheduled h
M31 Andromeda Galaxy 0 unknown — 89.7° at 13:00 31.7° 0.0
M42 Great Orion Nebula 3 unknown 21:00–21:10 (marginal) 42.9° at 17:50 51.0° 0.08
M45 Seven Sisters 3 unknown 21:00–21:10 (marginal) 72.5° at 16:05 16.5° 0.17
NGC 7000 North America Nebula 58 unknown 02:55–05:15 (good) 87.2° at 09:10 71.9° 1.0
V1057 Cyg 58 unknown 02:55–05:15 (good) 87.3° at 09:10 71.9° 2.5
M33 Triangulum Pinwheel 0 unknown — 79.1° at 13:50 17.3° 0.0

Left out

💡 API 
curl -sS "https://devops.majbase.com/rozhen-planner/plan-api?targets=M31,M42,M45,NGC%207000&date=2027-04-08"

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"}.