← 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 Tuesday, 11 August 2026 · astronomical night 22:14 → 04:38 (6.41 h) · Moon 1% (new moon) · weather: ERA5 history

M33M33 23:40–23:45: quality 0.4M33 23:45–00:00: quality 0.5M33 00:00–00:15: quality 0.6M33 00:15–00:30: quality 0.7M33 00:30–01:15: quality 0.8M33 01:15–02:35: quality 0.9M33 02:35–04:40: quality 1.0M33 04:40–05:20: quality 0.5M33 05:20–05:50: quality 0.2M33 05:50–06:00: quality 0.1observe M33 23:40–05:20scheduleM3322:0000:0002:0004:0006:00

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
20:25–23:40 — nothing worth pointing at — 3.25
23:40–05:20 M33 5.67 0.83
05:20–06:30 — nothing worth pointing at — 1.17

Targets

targetastronomyoverallbest windowhighestMoon sep.scheduled h
M33 Triangulum Pinwheel 100 100 00:05–04:40 (good) 79.1° at 05:35 94.2° 5.67

💡 API
curl -sS "https://devops.majbase.com/rozhen-planner/plan-api?targets=M31,M42,M45,NGC%207000&date=2026-08-11"

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"}.