StarMapTonight

A single answer to one question: is tonight's sky worth going out for? Twilight windows, moon brightness, cloud cover and a real ephemeris, combined into one score and one chart.

Computing tonight's score…

Fetching cloud cover from Open-Meteo.

Sky at 11:56 PM

Greenwich, England
open full chart →
07:43 PM scrub the night 04:08 AM
11:56 PM

brighter stars labelled · constellation lines drawn faintly · planets coloured · moon at its computed alt/az

Next seven nights

Pick a night to recompute the chart and score.

Ephemeris from astronomy-engine (Don Cross, MIT). Weather from Open-Meteo (CC-BY 4.0). Bright-star catalogue trimmed from BSC5 (public domain).