Saturno
Saturno visto desde un telescopio, con el relato de Alain, astrónomo francés.
SPACE (San Pedro de Atacama Celestial Explorations) (genial el nombre)
spaceobs.com
Pale Red Dot
The Pale Red Dot data, when combined with earlier observations made at ESO observatories and elsewhere, revealed the clear signal of a truly exciting result. At times Proxima Centauri is approaching Earth at about 5 kilometres per hour — normal human walking pace — and at times receding at the same speed. This regular pattern of changing radial velocities repeats with a period of 11.2 days. Careful analysis of the resulting tiny Doppler shifts showed that they indicated the presence of a planet with a mass at least 1.3 times that of the Earth, orbiting about 7 million kilometres from Proxima Centauri — only 5% of the Earth-Sun distance. Red dwarfs like Proxima Centauri are active stars and can vary in ways that would mimic the presence of a planet. To exclude this possibility the team also monitored the changing brightness of the star very carefully during the campaign using the ASH2 telescope at the San Pedro de Atacama Celestial Explorations Observatory in Chile and the Las Cumbres Observatory telescope network. Radial velocity data taken when the star was flaring were excluded from the final analysis. Although Proxima b orbits much closer to its star than Mercury does to the Sun in the Solar System, the star itself is far fainter than the Sun. As a result Proxima b lies well within the habitable zone around the star and has an estimated surface temperature that would allow the presence of liquid water. Despite the temperate orbit of Proxima b, the conditions on the surface may be strongly affected by the ultraviolet and X-ray flares from the star — far more intense than the Earth experiences from the Sun. The existence of liquid water on the planet today cannot be ruled out and, in such case, it may be present over the surface of the planet only in the sunniest regions, either in an area in the hemisphere of the planet facing the star (synchronous rotation) or in a tropical belt (3:2 resonance rotation). Proxima b's rotation, the strong radiation from its star and the formation history of the planet makes its climate quite different from that of the Earth, and it is unlikely that Proxima b has seasons. This discovery will be the beginning of extensive further observations, both with current instruments and with the next generation of giant telescopes such as the European Extremely Large Telescope (E-ELT). Proxima b will be a prime target for the hunt for evidence of life elsewhere in the Universe. Indeed, the Alpha Centauri system is also the target of humankind’s first attempt to travel to another star system, the StarShot project.
Atacama - Optical Animation
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VA - Interlink - Compiled by Sideform, Released 2019-04-03, Iboga Records, IBOGADIGITAL492
Iboga Records proudly presents an epic compilation from Sideform. ‘Interlink’ is a sonic representation of the everlasting connection between people - the connection that is the vital medium for the growth of our higher selves, and in this case, with help of technology.
Like a virtual hub, this compilation is a place where music travellers and artists of the psytrance world meet and exchange tales and experiences from their journeys through soundwaves.
Featuring remixes from Sideform's second album and many exclusive pieces, it is a selection of carefully crafted sonic explorations, dedicated to delight listeners both on and off the dance floor.
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Exploring The Universe - Space Documentary
ESO is Europe’s portal to the stars. Here astronomers from fifteen countries join forces to unravel the secrets of the Universe by building the largest telescopes on Earth, designing sensitive cameras and instruments and scrutinising the heavens.
Directed by: Lars Lindberg Christensen
Credit: ESA
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Eyes on the Skies (Full movie)
The International Astronomical Union's book and movie celebrating the 400th anniversary of the telescope.
The Eyes on the Skies movie explores the many facets of the telescope — the historical development, the scientific importance, the technological breakthroughs, and also the people behind this ground-breaking invention, their triumphs, and failures...
The Eyes on the Skies movie is presented by Dr. J aka Dr. Joe Liske from ESO, host of the Hubblecast video podcast. It runs for 60 minutes.
Movie website:
The material is released under a Creative Commons Attribution-NoDerivatives 4.0 International License.
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Credit:
Direction & Executive Producer: Lars Lindberg Christensen, ESA/ESO
Art Director/Production Designer: Martin Kornmesser, ESA/ESO
Written by: Govert Schilling, Lars Lindberg Christensen, ESA/ESO
3D Animations: Martin Kornmesser (ESA/ESO), Luis Calçada (ESO)
DVD Authoring: Andre Roquette (ESA/ESO), Lee Pullen (ESA/ESO)
Research: Laura Simurda, ESA/ESO
Editing: Martin Kornmesser, ESA/ESO
Cinematographer & Narration Mastering: Peter Rixner
Soundtrack & Sound Effects: movetwo - Axel Kornmesser & Markus Löffler
Lead Scientist: Dr. J (Dr. Joe Liske, ESO)
Technical Support: Lars Holm Nielsen (ESA/ESO), Raquel Yumi Shida (IAU/ESA-ESO), Dirk Essl (ESO)
IYA2009 Coordination: Pedro Russo & Mariana Barrosa (IAU/ESA-ESO)
Proof reading: Anne Rhodes