← 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 Thursday, 08 October 2026 · astronomical night 20:23 → 05:54 (9.51 h) · Moon 3% (waning crescent) · weather: forecast

M45M45 18:50–22:25: unusableM45 22:25–23:00: marginalM45 23:00–04:00: goodM45 04:00–05:00: marginalM45 05:00–05:55: goodM45 05:55–06:30: marginalM45 06:30–07:00: poorM45 07:00–07:30: unusableobserve M45 22:25–06:30scheduleM4520:0022:0000:0002:0004:0006:00

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

Schedule

localtargethoursmean quality
18:50–22:25 — nothing worth pointing at — 3.58
22:25–06:30 M45 8.08 0.82
06:30–07:30 — nothing worth pointing at — 1.0

Targets

targetastronomyoverallbest windowhighestMoon sep.scheduled h
M45 Seven Sisters 100 92 23:00–04:00 (good) 72.5° at 04:00 114.7° 8.08

💡 API
curl -sS "https://devops.majbase.com/rozhen-planner/plan-api?targets=M31,M42,M45,NGC%207000&date=2026-10-08"

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"}.