Title: The Orbit of GG Tau A Authors: Rainer Köhler GG Tau A is a pre-main-sequence binary system that is encircled by a circumbinary disk with a sharp inner edge. We present a study of the orbit of the binary system GG Tau A and its relation to the circumbinary disk. Three new relative astrometric posit...
Title: The nature of the cataclysmic variable PT Per Author: Mike Watson, Alastair Bruce, Chelsea MacLeod, Julian Osborne We present a study of the cataclysmic variable star PT Per based on archival XMM-Newton X-ray data and new optical spectroscopy from the WHT with ISIS. The X-ray data show deep...
Surprising Spiral Structure Spotted by ALMA Astronomers using the Atacama Large Millimetre/submillimetre Array (ALMA) have discovered a totally unexpected spiral structure in the material around the old star R Sculptoris. This is the first time that such a structure, along with an outer spher...
Title: The mystery of the telescopes in Jan Brueghel the Elder's paintings Authors: Paolo Molaro, Pierluigi Selvelli Several early spyglasses are depicted in five paintings by Jan Brueghel the Elder completed between 1608 and 1625, as he was court painter of Archduke Albert VII of Habsburg. An op...
The largest optical mirror ever built for a mission beyond Earth’s orbit has arrived at Ball Aerospace & Technologies Corp. for environmental testing and spacecraft integration.
NASA’s Kepler mission, with a field of view 70,000 times greater than the Hubble Space Telescope, will attempt t...
NGC 4460 (also MCG 8-23-41, UGC 7611 and PGC 41069) is a magnitude +11.3 edge-on spiral, or lenticular galaxy located 23 million light-years away in the constellation Canes Venatici. The galaxy is near to the magnitude +8.0 star HD108574. The galaxy was discovered by German-British astronomer Wi...
Title: Young astronomer in Denmark 1946 to 1958 Author: Erik Høg This is a personal account of how I became an astronomer. Fascinated by the stars and planets in the dark sky over Lolland, an island 100 km south of Copenhagen, the interest in astronomy was growing. Encouraged by my teachers, I polishe...
Stephen Hawkings was the first physicists to publish a paper on Multiverse. The idea that the Universe is actulaly made up of many Universe's. It stands to reason that this may be the exact thing. The Multiverse theory opens up the idea of how young or how old this Universe might be. It has been discove...
Title: MOA 2011-BLG-028Lb: a Neptune-mass Microlensing Planet in the Galactic Bulge Author: J. Skowron, A. Udalski, R. Poleski, S. Kozlowski, M. K. Szymanski, L. Wyrzykowski, K. Ulaczyk, P. Pietrukowicz, G. PietrzyNski, I. SoszyNski (The OGLE Collaboration), F. Abe, D.P. Bennett, A. Bhattac...
Ernst Wilhelm Leberecht Tempel (December 4, 1821 - March 16, 1889), normally known as Wilhelm Tempel, was a German astronomer who worked in Marseille until the outbreak of the Franco-Prussian War in 1870, then later moved to Italy. Read more
Title: Hypergiant V1302 Aql in 2001-2014 Author: Klochkova Valentina, Chentsov Eugene, Miroshnichenko Anatoly, Panchuk Vladimir, Yushkin Maksim We present the results of a study of spectral features and the velocity field in the atmosphere and the circumstellar envelope of the hypergiant V1...
On Thursday evening, NASA confirmed all six of it's sky meteor cameras in the southeast region captured images of a bright fireball. Bill Cooke with the NASA Meteoroid Environments Office says the fireball was over Georgia at 5:33 p.m. he says it was at an altitude of 50 miles above the town of McDonou...
The 700 - 1600 metre wide asteroid 1998 WT24 will make a close pass (69.2 lunar distances, 0.1779 AU), travelling at 14.85 km/second, to the Earth-Moon system on the 23rd December, 2012 @ 07:34 UT ±00:01. See more The Lunar Distance (LD), the distance between Earth and the Moon, equals 384,401 km, (...
Galileo's dozen: 12 satellites now in orbit The pace of deploying Europe's own satellite navigation system continued to increase with today's launch of the latest pair of Galileo satellites, doubling the number of satellites in space within nine months. Galileo 11 and 12 lifted off together at 11...
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