Category: SKY

Night sky just after sunset on March 24, 2012 …

Night sky just after sunset on March 24, 2012 with crescent moon and backlight, Jupiter, Venus and the Pleiades.

by

Ritzelmut

The dazzling full moon sets behind the Very La…

The dazzling full moon sets behind the Very Large Telescope in Chile’s Atacama Desert in this photo released June 7, 2010 by the European Southern Observatory. The moon appears larger than normal due to an optical illusion of perspective.

Credit: G.Gillet/ESO | twitter: @astronomy_blog

Reflections of Venus and Moon Image Cred…

Reflections of Venus and Moon

Image Credit: Filippo Curti (Sanderphil Urban Observatory)

Twinkling stars are far more desirable to poet…

Twinkling stars are far more desirable to poets and romantics than to astronomers. Even in the near-pristine seeing conditions over Chile, home to ESO’s fleet of world-class telescopes, turbulence in Earth’s atmosphere causes stars to twinkle, blurring our view of the night sky.

These four laser beams are specially designed to combat this turbulence. The intense orange beams dominating this image originate from the 4 Laser Guide Star Facility, a state-of-the-art component of the Adaptive Optics Facility of ESO’s Very Large Telescope (VLT). Each beam is some 4000 times more powerful than a standard laser pointer! Each creates an artificial guide star by exciting sodium atoms high in the Earth’s upper atmosphere and causing them to glow.

Creating artificial guide stars allows astronomers to measure and correct for atmospheric distortion, by adjusting and calibrating the settings of their observing equipment to be as accurate as possible for that particular area of sky. This gives the VLT a crystal-clear view of the cosmos, so it can capture the wonders of the Universe in stunning detail.

The first image was made using a drone flying over the VLT by the ESO Photographic Ambassador, Gerhard Hüdepohl.

Source: eso.org

Image credit:

ESO/G. Hüdepohl, Babak Tafreshi, Mark McCaughrean

Total Solar Eclipse Timelapse by Frank Mille…

Total Solar Eclipse Timelapse by Frank Miller

Venus, Mars, and the Crescent Moon in Conjun…

Venus, Mars, and the Crescent Moon in Conjunction

Image credit:

Frank Miller

Conjunction: Venus and MoonImage credit: Roger…

Conjunction: Venus and Moon

Image credit: Roger Hutchinson & Michael DeWoody

Comet Hale-Bopp 

Comet Hale-Bopp 

images: x, x

The moon – photo by H. Raab

The moon – photo by

H. Raab

Easter füll moon on Good Friday by Ritzelmu…

Easter füll moon on Good Friday by

Ritzelmut