Alpha Centauri and Beta Centauri

Alpha Centauri and Beta Centauri

At the centre of this image of the Centaurus constellation are Alpha Centauri and Beta Centauri, two triple star systems. The brightest stars of both systems orbit near to each other, making them appear as one star. Alpha Centauri is the nearest "star" to Earth except for the Sun. This photograph of the Centaurus constellation was taken at ESO's La Silla Observatory.

Image Credit: ESO
Explanation from: https://www.eso.org/public/images/centaurus-ch17-bardon-cc/

Popular posts from this blog

The Milky Way Galaxy

Image
This artist's rendering shows a view of our own Milky Way Galaxy and its central bar as it might appear if viewed from above. An arrow indicates the location of our Sun. Astronomers have concluded for many years that our galaxy harbors a stellar bar, though its presence has been inferred indirectly. Our vantage point within the disk of the galaxy makes it difficult to accurately determine the size and shape of this bar and surrounding spiral arms. New observations by the GLIMPSE legacy team with NASA's Spitzer Space Telescope indicate that the bar-shaped collection of old stars at the center of our galaxy may be longer, and at a different orientation, than previously believed. The newly-deduced size and angle of the bar are shown relative to our Sun's location. Our Milky Way galaxy may appear to be very different from an ordinary spiral galaxy. Image Credit: NASA/JPL-Caltech/R. Hurt (SSC) Explanation from: http://www.spitzer.caltech.edu/images/2353-sig05-010a-Milky-Way-Bar
Read more

Artist�s impression of the red supergiant star Antares

Image
This artist�s impression shows the red supergiant star Antares in the constellation of Scorpius. Using ESO�s Very Large Telescope Interferometer astronomers have constructed the most detailed image ever of this, or any star other than the Sun. Using the same data they have also made the first map of the velocities of material the atmosphere of a star other than the Sun. Image Credit: ESO/M. Kornmesser Explanation from: https://www.eso.org/public/images/eso1726b/
Read more

Star-Forming Region NGC 6729

Image
This image from ESO�s Very Large Telescope gives a close-up view of the dramatic effects new-born stars have on the gas and dust from which they formed. Although the stars themselves are not visible, material they have ejected is colliding with the surrounding gas and dust clouds and creating a surreal landscape of glowing arcs, blobs and streaks. The star-forming region NGC 6729 is part of one of the closest stellar nurseries to the Earth and hence one of the best studied. This new image from ESO�s Very Large Telescope gives a close-up view of a section of this strange and fascinating region. The data were selected from the ESO archive by Sergey Stepanenko as part of the Hidden Treasures competition. Sergey�s picture of NGC 6729 was ranked third in the competition. Stars form deep within molecular clouds and the earliest stages of their development cannot be seen in visible-light telescopes because of obscuration by dust. In this image there are very young stars at the upper left of t
Read more