← 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, 30 May 2026 · astronomical night 22:52 → 03:44 (4.87 h) · Moon 100% (full moon) · weather: ERA5 history

VegaVega 21:25–22:05: quality 0.1Vega 22:05–22:55: quality 0.3Vega 22:55–23:00: quality 0.5Vega 23:00–00:00: quality 0.4Vega 00:00–02:00: quality 0.3Vega 02:00–03:45: quality 0.6Vega 03:45–04:00: quality 0.3Vega 04:00–04:35: quality 0.2Vega 04:35–05:20: quality 0.1observe Vega 22:55–00:00observe Vega 01:00–03:45scheduleVegaVega22:0000:0002:0004:00

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
20:45–22:55 — nothing worth pointing at — 2.17
22:55–00:00 Vega 1.08 0.38
00:00–01:00 — nothing worth pointing at — 1.0
01:00–03:45 Vega 2.75 0.49
03:45–05:50 — nothing worth pointing at — 2.08

Targets

targetastronomyoverallbest windowhighestMoon sep.scheduled h
Vega Vega 68 45 01:00–03:45 (marginal) 87.1° at 03:25 73.6° 3.83

💡 API
curl -sS "https://devops.majbase.com/rozhen-planner/plan-api?targets=M31,M42,M45,NGC%207000&date=2026-05-30"

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"}.