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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.

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

Night of Thursday, 15 October 2026 · astronomical night 20:12 → 06:01 (9.82 h) · Moon 25% (waxing crescent) · weather: none — the schedule is astronomy only; overall conditions unknown

HD 189733HD 189733 18:40–19:10: unusableHD 189733 19:10–19:45: poorHD 189733 19:45–20:15: marginalHD 189733 20:15–00:50: goodHD 189733 00:50–01:20: marginalHD 189733 01:20–07:35: unusableobserve HD 189733 19:45–01:20scheduleHD 18973320:0022:0000:0002:0004:0006:00

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

Schedule

localtargethoursmean quality
18:40–19:45 — nothing worth pointing at — 1.08
19:45–01:20 HD 189733 5.58 0.83
01:20–07:35 — nothing worth pointing at — 6.25

Targets

targetastronomyoverallbest windowhighestMoon sep.scheduled h
HD 189733 100 unknown 20:15–00:50 (good) 71.1° at 19:45 62.7° 5.58

💡 API
curl -sS "https://devops.majbase.com/rozhen-planner/plan-api?targets=M31,M42,M45,NGC%207000&date=2026-10-15"

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"}.