← 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, 20 October 2026 · astronomical night 20:05 → 06:07 (10.03 h) · Moon 71% (waxing gibbous) · weather: none — the schedule is astronomy only; overall conditions unknown

M33M33 18:30–19:05: unusableM33 19:05–20:10: poorM33 20:10–20:20: marginalM33 20:20–06:10: goodM33 06:10–06:30: marginalM33 06:30–07:00: poorM33 07:00–07:40: unusableobserve M33 20:10–06:30scheduleM3320:0022:0000:0002:0004:0006:00

Faded bands: each target's own windows (green good, amber marginal, pink poor). Dark blue: the schedule. Grey columns: twilight.

Schedule

localtargethoursmean quality
18:30–20:10 — nothing worth pointing at — 1.67
20:10–06:30 M33 10.33 0.79
06:30–07:40 — nothing worth pointing at — 1.17

Targets

targetastronomyoverallbest windowhighestMoon sep.scheduled h
M33 Triangulum Pinwheel 100 unknown 20:20–06:10 (good) 79.1° at 01:00 72.1° 10.33

💡 API
curl -sS "https://devops.majbase.com/rozhen-planner/plan-api?targets=M31,M42,M45,NGC%207000&date=2026-10-20"

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"}.