Articles tagged with "airglow"

Galaxies to the south

Galaxies to the south

The Milky Way is at the right, and the Milky Way’s two satellite galaxies, the Magellanic Clouds, are in the middle of this photograph. There was a lot of airglow to the south west, and just to the right of the Large Magellanic Cloud you can see the distant glow from the town of Taltal.


Turn the lights out!

Turn the lights out!

The centre of the galaxy passes right over Paranal. We take great care to avoid stray light that could affect our observations, but this photo contains damning evidence – someone left the lights on in the VLTI control room.


Bright airglow at La Silla

Bright airglow at La Silla

The night after our observations, we spent one more night at La Silla before our transport back to La Serena. We were out taking photographs when the airglow became very strong, just about visible to the naked eye and very bright on a long exposure photograph. An observer from the Swiss Telescope came out to check out the skies as well.


Milky Way, Magellanic Clouds and airglow

Milky Way, Magellanic Clouds and airglow

A view south with airglow of different colours – red from nitrogen gas, green from oxygen, all glowing faintly in the upper atmosphere.


Bright airglow over the ATs

Bright airglow over the ATs

Clouds passing over made it a difficult night for observations. The airglow was unusually strong to the south – still almost invisible to the naked eye but strong enough to look like the aurora borealis on a long exposure photograph. This was a 30s exposure at ISO 6400.