← single target

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.

Try: an autumn deep-sky night  ·  ← previous night · next night →

Night of Saturday, 08 April 2028 · astronomical night 21:32 → 05:12 (7.66 h) · Moon 100% (full moon) · weather: none — the schedule is astronomy only; overall conditions unknown

HD 189733HD 189733 02:45–03:00: quality 0.4HD 189733 03:00–03:15: quality 0.5HD 189733 03:15–03:35: quality 0.6HD 189733 03:35–04:35: quality 0.7HD 189733 04:35–05:15: quality 0.8HD 189733 05:15–05:50: quality 0.4HD 189733 05:50–06:20: quality 0.1HD 189733 06:20–06:25: quality 0.2observe HD 189733 02:45–05:50scheduleHD 18973320:0022:0000:0002:0004:0006:00

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
19:50–02:45 — nothing worth pointing at — 6.92
02:45–05:50 HD 189733 3.08 0.61
05:50–06:55 — nothing worth pointing at — 1.08

Targets

targetastronomyoverallbest windowhighestMoon sep.scheduled h
HD 189733 40 unknown 03:25–05:15 (good) 71.1° at 08:10 112.4° 3.08

💡 API
curl -sS "https://devops.majbase.com/rozhen-planner/plan-api?targets=M31,M42,M45,NGC%207000&date=2028-04-08"

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"}.