... Informazioni . Informazioni generali . Come raggiungere l'Osservatorio . ... Personale . Personale di Ricerca . Personale tecnico, amministrativo, bibliotecario . ... Personale in ordine alfabetico . ... Per le scuole . ... Amici di Arcetri . ... Seminari generali . ... Servizi . ... Norme ricercatori non EU . ... Vademecum per CONSIP . ... Servizi informatici . ... Informazioni varie . ... Manuali e documentazione . Servizi generali . ... Norme e disposizioni . ... Notizie INAF . ...

... Science User Portal . ... ESO, the European Southern Observatory . ... Travel and Contacts . Travel to ESO Headquarters . ... Survey Telescopes . ... Star Clusters . ... Stars@ESO . ... ESO Science Newsletter . ... As we close in on part of the small constellation of Corona Australis we start to see faint clouds and in the final part of the video the full glory of the dramatic star formation region NGC 6729 is revealed in a new image from the FORS1 instrument on ESOтАЩs Very Large Telescope. ...

... Land i Degl'Innocenti a a b c d 6 c d Institut fur Astronomie, Universitat Wien Turkenschanzstrasse 17, A-1180 Wien, Austria; e-mail : bagnulo@astro.univie.ac.at Osservatorio Astrofisico di Arcetri , Largo E. Fermi 5, 1-50125 Firenze , Italy ; e-mail : landolfi@ arcetri .astro.it European Southern Observatory, Casilla 19001, Santiago 19, Chile; e-mail : gmathys@eso.org C.N.R., Gruppo Nazionale di Astronomia, Unita di Ricerca di Arcetri , ...

Mapa del Sitio . Corona solar . ... Las estructuras visibles en la corona en esos momentos sugieren que est n configuradas por campos magn ticos y, por lo tanto, que la corona est constituida por plasma. Por ejemplo, los cortos "penachos" que se elevan desde las regiones polares del Sol tienen la apariencia de la l neas de campo saliendo de una barra imantada, que sugieren que el Sol tiene, adem s de los intensos campos de las manchas, un campo magn tico global como el de la Tierra. ...

The Sun's corona . ... For instance, short "plumes" rising from the polar regions of the Sun look very much like field lines coming out of the end of a bar magnet, and they therefore suggest that the Sun, in addition to the intense fields of sunspots, also has a global magnetic field like the Earth's. Arches above the . Sun's surface . ... It is brightest near sunspots, whose arched field lines apparently hamper the outflow of solar wind which carries away energy and helps cool the corona. ...

... Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer. 2002 March 12 . Atete Corona on Venus . Credit: Magellan Spacecraft Team , USGS , NASA . ... Pictured above in the foreground is 500-kilometer wide Atete Corona found in a region of Venus known as the Galindo . The image was created by combining multiple radar maps of the region to form a computer-generated three-dimensional perspective. ...

Astronomy Picture of the Day . Atete Corona on Venus . ... 12.03.2002 . ... Credit: Magellan Spacecraft Team , USGS , NASA Explanation: What could cause a huge cylindrical mountain to rise from the surface of Venus ? Such features that occur on Venus are known as coronas . Pictured above in the foreground is 500-kilometer wide Atete Corona found in a region of Venus known as the Galindo . ... Publications with keywords: Venus . ... Swirling Clouds Over the South Pole of Venus . ...

... Armagh Observatory, College Hill, Armagh BT61 9DG, +44 (0)28 3752 2928 . ... Aurora . ... Corona . Fireballs . ... Zodiacal Light . ... The first thing to do is get acquainted with what the night sky looks like. ... The National Schools Observatory web site has very good horizon views of the sky for the current night. ... If the object is moving slowly across the sky then it may be one of the larger satellites. ... Cloudbait Observatory - October 2002 . ... October 2003 Aurora at Armagh . ...

R Coronae Borealis (RCB) stars are hydrogen-deficient, carbon-rich, pulsating, post-asymptotic giant branch stars that experience massive irregular declines in brightness caused by circumstellar dust formation. The mechanism of dust formatio