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L1188
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Title: L1188: a promising candidate of cloud-cloud collision triggering the formation of the low- and intermediate-mass stars Author: Yan Gong, Min Fang, Ruiqing Mao, Shaobo Zhang, Yuan Wang, Yang Su, Xuepeng Chen, Ji Yang, Hongchi Wang, Dengrong Lu We present a new large-scale (4 square degree...
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Mu Herculis
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Mu Herculis is a nearest star system about 27.4 light years from Earth in the constellation Hercules. Its main star, Mu Herculis A (possibly a binary) is fairly similar to the Sun although more highly evolved. Its mass is about 1.1 times that of the Sun, and it is beginning to expand to become a giant. [u...
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Exoplanet moons
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Title: Massive Satellites of Close-In Gas Giant Exoplanets Authors: Timothy A. Cassidy, Rolando Mendez, Phil Arras, Robert E. Johnson, Michael F. Skrutskie We study the orbits, tidal heating and mass loss from satellites around close-in gas giant exoplanets. The focus is on large satellites wh...
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Alpha Centauri
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[url=http://www.activeboard.com/forum.spark?forumID=58381&subForumID=150705&action=view...
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NGC 1624
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NGC 1624 (also Collinder 53, LBN 722, Lund 136 and OCL 403) is a magnitude +11.8 open cluster with nebulosity located 14,954 light-years away in the constellation Perseus. The cluster was discovered by German-British astronomer William Herschel using a 47.5 cm (18.7 inch) f/13 speculum reflect...
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AX Persei
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[url=http://astro.corlan.net/stars/PER/AX-PER.html]Read
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HD 172555
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Planet Smash-Up Sends Vaporised Rock, Hot Lava Flying NASA's Spitzer Space Telescope has found evidence of a high-speed collision between two burgeoning planets around a young star. Astronomers say that two rocky bodies, one as least as big as our moon and the other at least as big as Mercury, slamm...
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HD209458b
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Physical parameters of the upper atmosphere of the extrasolar planet
HD209458b
Every 3.5 days, the transits of the gaseous planet orbiting the star HD209458 offer the unique opportunity to investigate the spectral features of an extra-solar planetary atmosphere.
The st...
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NGC 7538
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Herschel Sees Budding Stars and a Giant, Strange Ring The Herschel Space Observatory has uncovered a weird ring of dusty material while obtaining one of the sharpest scans to date of a huge cloud of gas and dust, called NGC 7538. The observations have revealed numerous clumps of material, a baker's d...
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Algol Binaries
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Title: New Evidence of Magnetic Interactions between Stars from 3D Doppler Tomography of Algol Binaries: Beta Per and RS Vul Authors: Mercedes T. Richards, Michail I. Agafonov, Olga I. Sharova Time-resolved H-alpha spectra of magnetically-active interacting binaries have been used to create...
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Messier 80
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Messier 80 (also known as M80 or NGC 6093) is a magnitude +7.87 globular cluster located 32,600 light-years away in the constellation Scorpius. The cluster was discovered by French astronomer Charles Messier using a 10 cm (4 inch) refracting telescope at the Hôtel de Cluny (now the Musée national...
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Whiting 1
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Title: Whiting 1: the youngest globular cluster associated with the Sgr dSph Authors: Giovanni Carraro (Padova), Robert Zinn (Yale), Christian Moni Bidin (UChile) Recently, Carraro (2005) drew attention to the remarkable star cluster Whiting 1 by showing that it lies about 40 kpc from the Sun an...
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Kepler's supernova remnant
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Using NASA's Chandra X-ray Observatory, scientists have created a stunning new image of one of the youngest supernova remnants in the galaxy. This new view of the debris of an exploded star helps astronomers solve a long-standing mystery, with implications for understanding how a star's life can...
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Galactic satellite Crater 2
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Title: Crater 2: An Extremely Cold Dark Matter Halo Author: Nelson Caldwell (CfA), Matthew G. Walker (CMU), Mario Mateo (UM), Edward W. Olszewski (UA), Sergey Koposov (IoA), Vasily Belokurov (IoA), Gabriel Torrealba (IoA), Alex Geringer-Sameth (CMU), Christian I. Johnson (CfA) We present res...
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Sagittarius Stream
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Title: The Northern wraps of the Sagittarius Stream as traced by Red Clump stars: distances, intrinsic widths and stellar densities Authors: M. Correnti, M. Bellazzini, R.A. Ibata, F.R. Ferraro, A. Varghese We trace the tidal Stream of the Sagittarius dwarf spheroidal galaxy (Sgr dSph) using Re...
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