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□□□ See also:
DEEP SKY SOUTH : Remote Astronomy at Observatorio del Pangue
We still offer a service of hosting telescopes or private observatories for those stargazers who enjoy accessing to the Southern sky in optimal conditions. Don't worry for technical support or high speed internet, we provide it all.
For more information and availabilities, feel free to visit us at www.deepskysouth.org


□□□Vease también:
ALERTA EN TURISMO ASTRONÓMICO:
SEPAN DE LOS OBSERVATORIOS QUE NO LO SON !... (click aqui)

□□□ CONSULTEN AQUI LAS PREGUNTAS FRECUENTES EN ASTRONOMÍA

IMAGEN ASTRONÓMICA DEL DÍA


□□□ ...Y DE PASO ECHEN UN VISTAZO A LA IMAGEN ASTRONÓMICA DEL DÍA :
Click here to link to the original site "Astronomy Picture of the Day".

Cliquer ici pour accéder à la version française "Image Astronomique du Jour".

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C/2024-G3 ATLAS :
witnessing the end of a comet !...

With the visit of the previous comet Tsuchinshan-ATLAS, we thought that the show was over, but just a few weeks after this memorable event, we were granted with a new remarquable visitor of similar brightness, eventually offering an ususual and spectacular ending : the disappearance of the nucleus !... For the last days of January, comet ATLAS (C/2024-G3) adorned the sunset sky, reaching to be visible as a naked eye object despite its low altitude.

We succeeded to capture it from January 19th, just one week after its perilous approach to the Sun (at a mere 13 million kms), when passing at some 150 million kms from Earth, then shining at a visual magnitude of -1.5. On the views below we can appreciate the complex structure of the long tail, as well as the extremely high density of the coma.

Photo: Cristian Valenzuela / Observatorio del Pangue - January 19, 2025
Canon 60D camera at prime focus of William Optics 71mm f/5.9 refractor, exp. 5s, ISO 800

On the following nights we kept an eye on it, to appreciate the evolution of aspect of this particularely active comet, surprisingly maintaining its brightness day after day...
Photo: Cristian Valenzuela / Observatorio del Pangue - January 20, 2025
Canon 60D camera at prime focus of William Optics 71mm f/5.9 refractor, exp. 5s, ISO 800

The comet at the sunset, with the CTIO observatory on the far right
Photo: Cristian Valenzuela / Observatorio del Pangue - January 21, 2025
Canon 60D camera with 85mm lens

And then, on January 27th (during daytime in Chile), something unexpected happened : the nucleus desintegrated and quickly dissolved itself in the dense tail, leaving behind an "orphan", headless coma, that we captured the following night.
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Note the thin, straight denser "tail within the tail" on the left border of the coma, which corresponds to the last ejection of gas from the nucleus, just before its final desintegration...
Photo: Cristian Valenzuela / Observatorio del Pangue
January 27, 2025
Canon 60D camera at prime focus of William Optics 71mm f/5.9 refractor
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So now we can tell : the show is over...

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