#PhotoOfTheDay: #APEX at #Chajnantor

APEX is a 12-m telescope, based on an #ALMA prototype antenna, and operating at the ALMA site.

It has modified optics and an improved antenna surface accuracy, and is designed to take advantage of the excellent sky transparency working with wavelengths in the 0.2 to 1.4 mm range.

https://www.eso.org/public/images/eso0624b/

Llano de #Chajnantor, in the #Atacama Desert of northern Chile, is home to the largest and most expensive astronomical telescope project in the world, the Atacama Large Millimeter Array (ALMA).

Llano de Chajnantor and the surrounding area has been designated as the Chajnantor Science Reserve by the government of Chile.

https://knowledgezone.co.in/trends/browser?topic=ALMA

#PhotoOfTheDay: Icy #Penitents by moonlight on #Chajnantor

These bizarre ice and snow formations are known as penitentes (Spanish for “penitents”). They are illuminated by the light of the Moon, which is visible on the right on the photograph.

On the left, higher in the sky, the Large and Small Magellanic Clouds can be faintly seen, while the reddish glow of the Carina Nebula appears close to the horizon on the far left.

https://www.eso.org/public/images/potw1221a/?lang

Caltech's Submillimeter Observatory has been removed from Maunakea

The CSO telescope is packed in shipping containers in a harbor on the island of Hawai‘i, where it awaits a new purpose in Chile as the Leighton Chajnantor Telescope

https://www.caltech.edu/about/news/caltechs-submillimeter-observatory-has-been-removed-from-maunakea
https://www.caltech.edu/about/news/telescope-dismantled-and-heading-to-new-mission-in-chile

#Astronomy #Astrodon #Hawaii #Maunakea #CSO #Chajnantor #Chile #Observatory #telescope #science #STEM #news

Caltech's Submillimeter Observatory Has Been Removed from Maunakea

The final components of the Caltech Submillimeter Observatory (CSO) have been removed from a valley atop Maunakea in Hawai‘i, and the land at the site has been restored.

California Institute of Technology

Happy new year, and happy new ALMA 2024 Calendar!

For January, we have a very nice image: what the Chajantor plateau looked like last year when it was full of snow! And this is just the first month image in our ALMA 2023 Calendar, which you can download from our web in two languages:

English: https://www.almaobservatory.org/wp-content/uploads/2024/01/ALMA-calendario-2024-ENG-WEB.pdf

Spanish: https://www.almaobservatory.org/wp-content/uploads/2024/01/ALMA-calendario-2024-ESP-WEB.pdf

#ALMA #ALMAObservatory #calendar #January2024 #snow #Chajnantor #ChajnantorPlateau

Science Magazine astronomy covers appreciation post

The Cosmic Background Imager (2004)

Featuring the radio interferometer located on the Chajnantor plateau in the Chilean Andes, that observed the polarization of the Cosmic Microwave Background radiation.

https://www.science.org/toc/science/306/5697

#cosmology #universe #astronomy #astrophysics #astrodon #cmb #radiation #radiometer #interferometer #polarization #cbi #telescope #chajnantor #andes #chili #space #science #magazine #sciencemagazine #covers #research

#Astrodon A donkey at the ALMA Observatory basecamp, stands in front of the 6000m high Licancabur volcano
#photography #chile #chajnantor #atacamadesert