See the best Aurora borealis

Aurora Alert informs you immediately via APP and PWA

This season, there are several new, unique features which are available only in Aurora Alert Realtime.

Aurora Alert Realtime sends you alert every time when Auroras intensity increases. This way you can be sure that you will be alerted when the best and strongest Auroras are visible.

PreAlert feature gives an alert when the Auroras are in the sky but are not yet visible to the naked eye.
Furthermore, Night Vision let you see throught the darkness. You can reliably detect what the cloud situation is at that particular moment.
“An image says more than a thousand words”.

Aurora Alert Realtime uses the latest and most sensitive cameras to provide you with the most reliable and the best aurora alert system.
Professional-level lenses enable the widest possible viewing angle.

The images in Apps are updated automatically without constant manual updating of the page.

In Apps, you can see the locations of the different cameras on the map and you can turn on the alarm from the area you want.

What is PWA

Progressive Web Apps (PWAs) are web applications that are reliable and fast first load, no Play- or App Store needed.

Arctic Tree House Hotel, World Luxury Hotel Awards 2017 Winner and Santa’s Hotels’ glass igloos in Arctic Circle use Aurora Alert Realtime.

Arctic Light Hotel, Best Hotel in Finland 2017 Santa Claus Holiday Village, Trip Advisor Travellers’ choice 2017 recommends Aurora Alert Realtime. Catai, big spanish tour operator recommends and uses Aurora Alert Realtime for clients in Rovaniemi.

See Per Byhring’s excellent video how auroras are formed.

Read Dr. Steve Marple’s, Lancaster University, Aurora Watch UK blog.”Why Kp index is poor indicator for auroral alerts”


Aurora and weather forecasts

In the Aurora forecast bigger number means stronger Auroras. If there are values in parentheses, they indicate the intensity of the geomagnetic storm.

The most important thing in the weather forecast is cloud situation. If sky is clear, you can see Auroras if they appears.
If it is partly cloudy, there is still good chance to see Auroras. If it is raining or snowing, it is difficult to see Auroras.

Remember, the forecast are only forecast and the actual situation may be different.
Finally, Aurora Alert Realtime alerts, when Auroras are visible.

NOAA Kp index breakdown Feb 06-Feb 08 2023
Time in Finland
(UT+2h) Feb 06 Feb 07 Feb 08
02-05 --------- 00-03UT 3.67 4.00 3.00
05-08 --------- 03-06UT 3.67 3.67 3.33
08-11 --------- 06-09UT 2.67 3.00 2.33
11-14 --------- 09-12UT 3.33 2.67 2.67
14-17 --------- 12-15UT 3.67 2.33 2.00
17-20 --------- 15-18UT 2.33 2.33 2.00
20-23 --------- 18-21UT 2.33 2.67 2.33
23-02 --------- 21-00UT 2.67 2.67 3.00
Source: NOAA, Space Weather Prediction Center
Geomagnetic Storms

G5 Extreme
G4 Severe
G3 Strong
G2 Moderate
G1 Minor



Ursa (astronomical society) star chart

Fall in love with the beautiful starry sky and find different stars and constellations like; Andromeda, Cassiopeia, Orion, Ursa Major etc. The star map is updated automatically.

Each of the four main points of the compass symbols north (N), west (W), south (S) and east (E) are marked on the edges of the map.

Possible planets visible to the naked eye are marked on the map with letters: Merkurius (m), Venus (V), Mars (M), Jupiter (J) and Saturnus (S)

More information about Ursa (finnish only)

Star chart

Click to open star chart
Ursa (astronomical society) star chart

Auroras 24.12.2022

Auroras 24.12.2022 Part II

Highlights