Observed arrival · 2026-10-22

Noctilume: an aurora forecast for Denmark’s latitudes

noctilume.app Visit website

Editorial interest 73/100 Selection signal · not a rating of the site

Noctilume is a forthcoming app that aims to tell mid-latitude aurora watchers whether to go out, when to look, and where to face.

Landing page captured for the 2026-10-22 issue.

For: Aurora watchers in Denmark and other mid-latitudes
Worth noticing: It names NOAA for space-weather data, DMI for Danish cloud cover, and MET Norway for cloud forecasts elsewhere.

Field notes

The page says precise location remains on the phone, while an area rounded to about 10 km is sent to obtain a cloud forecast. It names NOAA’s Space Weather Prediction Center for space-weather data, DMI for Danish cloud cover, and MET Norway elsewhere, with both meteorological sources identified as CC BY 4.0. The app is described as forthcoming for the 2026/27 aurora season.

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