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Beiträge, die mit Astrodon getaggt sind

#HappyNewYear 🎉 Boost your #NewYear resolution with adaptive optics. By deforming a thin flexible mirror a thousand times per second you can correct atmospheric turbulence and get sharp astronomical images!

➡️ eso.org/public/teles-instr/tec…

📷 ESO/P. Weilbacher (AIP)

#astrodon #astronomy #astrophysics #space #science

Two telescopic images of the planet Neptune side by side. The left one, labeled "adaptive optics", is very crisp and shows detailed white clouds against the planet's deep blue disc. The right one, labeled "no adaptive optics", shows a blurred disc where no details can be discerned.

Adaptive Optics

Astronomers have turned to a method called adaptive optics. Sophisticated, deformable mirrors controlled by computers can correct in real-time for the distortion caused by the turbulence of the Earth's atmosphere, making the images obtained almost as…
www.eso.org
#science #astronomy #Astrophysics #Space #Astrodon #happynewyear #newyear

After all, black holes are not as destructive as we thought! 😮

Using our Very Large Telescope, astronomers have discovered, for the first time ever, a binary star close to our galaxy's supermassive black hole. Binary stars are extremely common throughout the galaxy but not close to the black hole, which makes this new system really interesting!

Named D9, it looks like a single dot, but its speed wobbles periodically back and forth, revealing that this is in fact two stars orbiting each other as they move together around the black hole.

Interested? Read more: eso.org/public/news/eso2418/

Video summary: youtube.com/watch?v=SQVG7pqcHT…

📷 ESO/F. Peißker et al., S. Guisard

#astrodon #astronomy #astrophysics #space #science

The image shows a section of our galaxy, the Milky Way, in the night sky. This is where the supermassive blackhole and the newly discovered binary star around it are located. The Milky Way traverses the image diagonally and is a spectacle of light and darkness. Its millions of stars illuminate the picture, but light is often blocked by large dark clouds of gas and dust that create eerie shapes. It also contains stars and small nebulae of red, pink and blue colours. In the background, the sky is dark, but full of stars of different sizes and colours. The centre of the galaxy with the binary star appears in a close-up on one corner of the image. This is a pixelated mapping of the hydrogen emission of the region around the star pair D9. Bright orange to white patches represent high hydrogen levels (indicating stars), black, represents very low hydrogen emission. Most of the centre of the image is dark with a few wisps of dark orange. The black hole and the binary D9 are indicated.

First ever binary star found near our galaxy’s supermassive black hole

An international team of researchers has detected a binary star orbiting close to Sagittarius A*, the supermassive black hole at the centre of our galaxy.
www.eso.org
#science #astronomy #Astrophysics #Space #Astrodon

#Introduction Hi #fediverse ! We’re the European Southern Observatory, and we design, build and operate ground-based telescopes.

One of them is our Extremely Large Telescope, currently under construction in #Chile. It will have a 39 m mirror, and its rotating enclosure will weigh 6100 tonnes, or about 700 mastodons!

We’re looking forward to chatting with all of you about #astronomy

📷 ESO/G. Vecchia

#astrodon #astrophysics #space #science

The giant metal frame of a dome takes up most of the picture frame, contrasting with the brown hills and a thin horizontal line of blue sky in the background. The dome's frame is not yet fully covered in the middle, so the dark brown landscape behind it shows. The big opening in the dome's roof shows the interior, still a construction site with a structure of white beams. In front of the big building is one red crane, taller than the dome.
#fediverse #science #introduction #chile #astronomy #Astrophysics #Space #Astrodon

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