Tenerife is widely recognised as one of the best locations in the world for astronomical observation. High altitude, exceptionally clear air and strict environmental protections combine to create remarkable conditions for studying the night sky.
Rising dramatically above the Atlantic Ocean, Mount Teide reaches 3,715 metres above sea level. Much of the surrounding volcanic plateau sits above the layer of clouds created by the Atlantic trade winds, providing stable atmospheric conditions that are ideal for astronomy.
These natural advantages have attracted scientists, astronomers and travellers for more than a century. Today both professional observatories and guided stargazing experiences take advantage of the island’s extraordinary night skies.
Quick Answer
Why is Tenerife famous for astronomy? Tenerife offers exceptional stargazing conditions due to its high altitude, stable atmosphere, low light pollution and protected skies. Observatories on Mount Teide use these conditions to study the sun and the wider universe.
Why Tenerife Has Ideal Conditions for Astronomy
Several natural factors combine to make Tenerife one of the most favourable places in Europe for observing the night sky.
- High altitude landscapes created by volcanic activity
- Stable atmospheric layers formed by Atlantic trade winds
- Dry air above the cloud layer
- Very low levels of light pollution within Teide National Park
The same atmospheric patterns that make northern Tenerife lush and green also help create stable skies above the volcanic plateau.
You can read more about this climate system in our article explaining why north Tenerife is greener.
Table of Contents
- Why Tenerife has ideal conditions for astronomy
- Charles Piazzi Smyth and the Tenerife experiment
- Jessie Smyth and early astronomical photography
- Mount Teide observatories today
- Experiencing the night sky on Mount Teide
- Sitio Litre and the scientific visitors of Puerto de la Cruz
- Frequently asked questions
The Canary Islands Sky Protection Law
One of the reasons Tenerife remains such an exceptional location for astronomy is the Canary Islands Sky Law, introduced in 1988. This legislation was designed to protect the quality of the night sky above the observatories.
The law regulates light pollution, aircraft flight paths, radio interference and atmospheric pollution in order to maintain ideal observing conditions.
As a result, the night skies above Tenerife remain remarkably dark compared with many parts of Europe, allowing both professional astronomers and visitors to observe the stars with exceptional clarity.
Charles Piazzi Smyth and the Tenerife Astronomical Experiment
The scientific importance of Tenerife for astronomy was first demonstrated in 1856 by the Scottish astronomer Charles Piazzi Smyth.
Smyth believed that telescopes positioned at higher altitudes would produce clearer astronomical observations because they would sit above much of the atmosphere that distorts starlight.
To test this theory he transported telescopes and instruments up the slopes of Mount Teide, conducting observations at high altitude sites within the volcanic landscape.
The results confirmed his theory. Observations taken above the lower atmosphere were significantly clearer than those taken at sea level.
This experiment helped establish the modern concept of mountain observatories, influencing the placement of major observatories around the world.
Jessie Smyth and Early Astronomical Photography
Charles Piazzi Smyth was accompanied on the expedition by his wife, Jessie Smyth, who played an important role in documenting the journey.
Using early photographic techniques, she helped record observations and produced some of the earliest scientific photographs taken during a high-altitude astronomical expedition.
Her work helped illustrate the experiment and contributed to the detailed account later published by Smyth describing the Tenerife expedition.
Mount Teide Observatories Today
The success of Smyth’s experiment helped inspire the development of modern observatories in high mountain environments.
Today the Teide Observatory on the slopes of Mount Teide is operated by the Instituto de Astrofísica de Canarias and forms part of an international network of astronomical research facilities.
Along with the Roque de los Muchachos Observatory on the neighbouring island of La Palma, it is considered one of the most important astronomical research locations in Europe.
Strict environmental protections, including the Canary Islands Sky Law, help maintain the exceptional quality of the night sky above the observatories.
Experiencing the Night Sky on Mount Teide
The same conditions that attract astronomers also create an unforgettable experience for visitors.
Travelling into Teide National Park after sunset reveals a dramatic volcanic landscape beneath an exceptionally clear sky where stars, planets and distant galaxies become visible.
During the Ladies Touring Tenerife experience, guests visit Mount Teide at night with a private astronomy guide who provides telescopes and explains the constellations visible above the island.
You can learn more about what is included in the experience on the What’s Included page.
Sitio Litre and the Scientific Visitors of Puerto de la Cruz
During the nineteenth century Puerto de la Cruz became a meeting place for travellers, scientists and writers who were drawn to the island’s unique climate and natural landscapes.
Historic gardens such as Sitio Litre hosted many of these visitors, including Charles Piazzi Smyth during his Tenerife expedition.
From this base he organised parts of the journey that would eventually lead to his pioneering observations on Mount Teide.
You can read more about the history of the gardens in our article about Sitio Litre Garden.
Frequently Asked Questions
Why is Tenerife good for astronomy?
Tenerife offers exceptional stargazing conditions due to high altitude, stable atmospheric conditions and strict protections against light pollution.
Where are the observatories in Tenerife?
The Teide Observatory is located on the slopes of Mount Teide at around 2,400 metres above sea level.
Can visitors go stargazing on Mount Teide?
Yes. Guided astronomy experiences allow visitors to observe stars, planets and galaxies from the volcanic landscapes of Teide National Park.
Who first tested astronomy on Mount Teide?
The Scottish astronomer Charles Piazzi Smyth conducted the Tenerife Astronomical Experiment in 1856, demonstrating the benefits of observing from high altitude.