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NGC 6778
(Preview)
Title: NGC 6778: a disrupted planetary nebula around a binary central star Authors: M. A. Guerrero, L. F. Miranda The planetary nebula (PN) NGC 6778 harbours a binary central star with a short orbital period and displays two systems of fast collimated outflows. In order to assess the influence of th...
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R Tauri
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Maxima of long period variable R Tauri on the 3rd April, 2010 Magnitude: 8.6-14.2 Type: Mira Position (2000): RA 04 28 18.0004, Dec +10 09 44.770
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XMMU J0541.8-6659
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Title: XMMU J0541.8-6659, a new supernova remnant in the Large Magellanic Cloud Authors: M.-H. Grondin, M. Sasaki, F. Haberl, W. Pietsch, E. J. Crawford, M. D. Filipovic, L. M. Bozzetto, S. Points, R. C. Smith The high sensitivity of the XMM-Newton instrumentation offers the opportunity to study...
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Rigel
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That is no Moon!
It is the supergiant star, Rigel, emerging from behind Saturn.
This image was captured by the Cassini spaceprobe in orbit around the planet.
The image was taken in visible green light with the Cassini spacecraft narrow-angle camera at a distance of approximately 663,...
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RS Centauri
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Maxima of long period variable RS Centauri on the 12th March, 2010 Magnitude: 8.6-13.4 V Type: Mira Period: Position (2000): RA 11 20 27.8883, Dec -61 52 36.821
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T Geminorum
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Maxima of long period variable T Gemini on the 31st May, 2010 Magnitude: 8.7-14.0 Type: Mira Position (2000): RA 07 49 18.126 | Dec +23 44 03.77
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Variable Stars
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Title: The Exciting Star of the Berkeley 59/Cepheus OB4 Complex and Other Chance Variable Star Discoveries Authors: Daniel J. Majaess, David G. Turner, David J. Lane, Kathleen E. Moncrieff A study is presented regarding the nature of several variable stars sampled during a campaign of photometr...
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Barnard 3 region
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WISE Presents a Cosmic Wreath Just in time for the holidays, astronomers have come across a new image from NASA's Wide-field Infrared Survey Explorer, or WISE, that some say resembles a wreath. You might even think of the red dust cloud as a cheery red bow, and the bluish-white stars as silver bells. T...
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Hu1-2
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Title: The collimated outflows of the planetary nebula Hu1-2: proper motion and radial velocity measurements Authors: L. F. Miranda, M. Blanco, M. A. Guerrero, A. Riera Hu1-2 is a planetary nebula that contains an isolated knot located northwestern of the main nebula, which could be related to a c...
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Fastest Pulsar
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A speeding, superdense neutron star somehow got a powerful "kick" that is propelling it completely out of our Milky Way Galaxy into the cold vastness of intergalactic space. Its discovery is puzzling astronomers who used the National Science Foundation's Very Long Baseline Array (VLBA)...
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4U 1820-30
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Title: The Mass and Radius of the Neutron Star in 4U 1820-30 Authors: Tolga Guver, Patricia Wroblewski, Larry Camarota, Feryal Ozel We report on the measurement of the mass and radius of the neutron star in the low-mass X-ray binary 4U 1820-30. The analysis of the spectroscopic data on multiple ther...
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Blue supergiants
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Title: Multiple ring nebulae around blue supergiants Authors: S. M. Chita, N. Langer, A. J. van Marle, G. Garcia-Segura, A. Heger In the course of the life of a massive star, wind-wind interaction can give rise to the formation of circumstellar nebulae which are both predicted and observed in the na...
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RS Ursae Majoris
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Maxima of long period variable RS Ursa Majoris on the 3rd July, 2010.
Magnitude: 9.0-14.3
Type: Mira
Position (2000): RA 12 38 57.5437, Dec +58 29 00.319
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Milky Way Streams
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Title: Identifying Star Streams in the Milky Way Halo Authors: Charles King III, Warren R. Brown, Margaret J. Geller, Scott J. Kenyon (SAO) We develop statistical methods for identifying star streams in the halo of the Milky Way galaxy that exploit observed spatial and radial velocity distributi...
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SS Virginis
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Maxima of long period variable SS Virginis on the 8th July, 2010. Magnitude: 6.8-8.9 Type: Mira Position (2000): RA 12 25 14.3949, Dec +00 46 10.921
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