Storms in Jupiter cause a cyclone to split

portada

January 7th 2020

A group from the Basque Country University has followed-up for one year a series of convective storms inside a cyclone on Jupiter and, by means of simulations, found that storms of this size could only have been generated by water condensation.

In February 2018, a series of convective storms occurred on Jupiter. They were storms with strong vertical movements and great precipitation development that were so powerful that they completely changed the region where they took place: a cyclone 28,000 km long, called a ghost cyclone -- owing to its weak contrast which renders it difficult to make out in observations from the Earth, although it could be observed from Calar Alto.

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Possible satellite detected around the Trans-Neptunian object Varuna

varuna

December 11th 2019

Astronomers have detected hints of a satellite orbiting Varuna, an object located beyond Neptune, after observing it for nearly 15 years, in particular from Calar Alto.

Beyond Neptune, the eighth and last planet in the Solar System, orbit many Trans-Neptunian objects (TNOs). Lying at large distances (more than 30 times the one of the Earth to the Sun), TNOs preserve
fossil records of the nebula that gave birth to the Solar System. To date, about 2,500 TNOs have been discovered; among them, Varuna, a large TNO of nearly 1000 km in its longest (elongated) shape.

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Public Surveys and new instrumentation for Calar Alto Observatory

imagenNovember 20th 2019

The Calar Alto observatory (CAHA) is a key institution for the international astronomical community, for its highly competitive astronomical facilities (telescopes and instrumentation). From 2019 on, the current administration of CAHA includes the Junta de Andalucía as a new partner - replacing the Max Planck Gesellschaft -, and together with the Spanish National Research Council (CSIC) these two institutions manage the operation of the observatory.

The recent success of long-term observational projects already finished (CALIFA) or close to finalization (CARMENES), together with the innovative tradition in available instrumentation of CAHA, point to the necessity of a new call to the international astronomical community for scientific and technological proposals that will contribute to keep the level of excellence of the observatory.

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Saturn in 2018: a stormy year

portada

October 24th 2019

Astronomers from Bilbao (Basque Country) have coordinated the global follow-up of a series of storms, which developed in 2018 on the disk of the ‘lord of the rings’, using space- and ground-based observations, including data from Calar Alto.

With its enormous rings, Saturn is the most appealing of the giant gaseous planets. Like other planets with an atmosphere, it is a natural laboratory to study meteorological events happening in our planet and to test, under extreme conditions, models used to explain and predict them.

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