Description
Helios is a seven-metre-scale model of the Sun created by British artist Luke Jerram, combining art, light and sound into a captivating artistic experience.
Measuring seven metres in diameter, the artwork features 72dpi detailed imagery* of the Sun’s surface. At an approximate scale of 1:200 million, each centimetre of the internally lit spherical sculpture represents 2000km of the Sun’s surface.
The installation is a fusion of solar imagery, sunlight and a specially created sound composition by Duncan Speakman and Sarah Anderson.
Imagery for the artwork has been compiled using 400,000 photographs of the Sun provided by Astrophotographer Dr Stuart Green (taken between May 2018 to June 2024) and NASA observations of the Sun, with guidance from solar scientist, Professor Lucie Green of University College London (UCL).
Helios follows on from Jerram’s previous astronomical artworks, Museum of the Moon, Gaia, and Mars. In Helsinki, Helios forms part of the Helsinki Cathedral Parish’s Let There Be Light! themed month, which explores mental wellbeing and mental health.
Cathedral
1.10.-1.11.2026
The latest opening hours are available on Helsinki Cathedral’s website
Admission fee 8€, under 18 yrs free entry
Measuring seven metres in diameter, the artwork features 72dpi detailed imagery* of the Sun’s surface. At an approximate scale of 1:200 million, each centimetre of the internally lit spherical sculpture represents 2000km of the Sun’s surface.
The installation is a fusion of solar imagery, sunlight and a specially created sound composition by Duncan Speakman and Sarah Anderson.
Imagery for the artwork has been compiled using 400,000 photographs of the Sun provided by Astrophotographer Dr Stuart Green (taken between May 2018 to June 2024) and NASA observations of the Sun, with guidance from solar scientist, Professor Lucie Green of University College London (UCL).
Helios follows on from Jerram’s previous astronomical artworks, Museum of the Moon, Gaia, and Mars. In Helsinki, Helios forms part of the Helsinki Cathedral Parish’s Let There Be Light! themed month, which explores mental wellbeing and mental health.
Cathedral
1.10.-1.11.2026
The latest opening hours are available on Helsinki Cathedral’s website
Admission fee 8€, under 18 yrs free entry
Source: City of Helsinki, Linked Events (CC BY 4.0)
Practical info
When
1. October 2026 – 1. November 2026
Price
Cheap (<€20)
8€
Audience
All audiences
Organizer
Helsingin tuomiokirkkoseurakunta
Tickets & more info
Buy tickets
Sold by helsingintuomiokirkko.fi. Prices and seat availability are shown on the seller’s page.
Cottages and holiday homes nearby
from 1302 €
Helsinki Rooftop
Book →
from 625 €
Villa Kallahti Beach View Helsinki
Book →
from 750 €
Korpilammenhuvilat 7b
Book →Location on map
Parking nearby
Loading parking areas…
* The destination may also have its own parking.
Other events nearby — Helsinki
See nearby
Helsinki Cathedral
Helsinki
Alexander II
Helsinki
Bank of Finland Museum
Helsinki
Johan Vilhelm Snellman
Helsinki
Kesäkino Engel
Helsinki
Bryggeri Helsinki
Helsinki