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HD 51844
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Title: HD 51844: An Am delta Scuti in a binary showing periastron brightening Author: M. Hareter, M. Paparó, W. W. Weiss, A. García Hernández, T. Borkovits, P. Lampens, M. Rainer, P. De Cat, P. Marcos-Arenal, J. Vos, E. Poretti, A. Baglin, E. Michel, F. Baudin, C. Catala Pulsating stars in binary sys...
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Blobrana
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CP Lacertae
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CP Lacertae (Nova Lacertae 1936 or CP Lac) was a nova, which lit up in 1936 in the constellation Lacerta. It reached a brightness of 2.1 mag. Read more
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V1515 Cygni
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Title: Spectro-astrometry of V1515 Cyg Author: V. Agra-Amboage, P. J. V. Garcia FU Orionis objects are a class of young stars with important bursts in luminosity and which show evidence of accretion and ejection activity. It is generally accepted that they are surrounded by a Keplerian circumste...
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NGC 5565
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NGC 5565 is (possibly) a magnitude +15.5 star located in the constellation Virgo. The star was discovered by American astronomer Lewis A. Swift using a 40.6 cm (16 inch) Alvan Clark and Sons refractor at the Warner Observatory, East Avenue, Rochester, New York, on the 14th June 1884. Right Ascensi...
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HD 218544
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Title: HIP 114328: a new refractory-poor and Li-poor solar twin Author: Jorge Melendez, Lucas Schirbel, TalaWanda R. Monroe, David Yong, Ivan Ramirez, Martin Asplund The standard solar model fails to predict the very low lithium abundance in the Sun, which is much lower than the proto-solar nebu...
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NGC 6406
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NGC 6406 is a magnitude +4.2 double star located in the constellation of Hercules. The double star was discovered by French astronomer Guillaume Bigourdan using a 30.48 cm (12 inch) refractor at the Paris Observatory on the 10th June 1885. Right Ascension 17h 38m 19.2s, Declination +18° 49' 58"
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TY Bootis
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Title: Modern Comprehensive study of the W UMa System TY Boo Author: M. M. Elkhateeb, M. I. Nouh, A. S. Saad New CCD three colors light curves of TY Boo were carried out in five nights from February to May 2006 in BVR bandpass using a 50-cm F/8.4 Ritchey Chretien telescope (Ba50) of the Baja Astronomical...
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Superflare stars
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'Superflares' erupt on some Sun-like stars Some middle-aged stars burn and rave like newborns, producing flares thousands of times as energetic as those we see on the Sun, according to the first large survey of these events. Flares - up to 10 million times as energetic as the so-called Carrington ev...
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LAMOST-HVS1
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Nearest bright 'hypervelocity star' found Researchers from the United States and China said Wednesday they have discovered the closest known "hypervelocity star" that is moving away from the center of the Milky Way at more than 1.6 million km per hour. Read more
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Xi1 Canis Majoris
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XMM-Newton:Pulsating X-rays allow XMM-Newton to unmask a mysterious star XMM-Newton has revealed a unique star. It is a celestial chimera with the body of a normal massive star yet the magnetic field of a dead, stellar dwarf. This makes it a singular object among the billions of known stars. The rac...
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PV Cephei
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PV Cep is variable star of Orion type located in the constellation of Cepheus at a distance of over 1600 light-years from Earth. Read more
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AF Piscium
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The M4.5V flare star AF Psc as seen in K2 engineering data We present the light curve of the little studied flare star AF Psc (M4.5V) obtained using engineering data from the K2 mission. Data were obtained in Long Cadence mode giving an effective exposure of 29 min and nearly 9 d of coverage. A clear modu...
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V4089 Sgr
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Title: Accurate absolute parameters of the binary system V4089 Sgr Author: M. E. Veramendi, J. F. Gonzalez We carried out a spectroscopic-photometric analysis of the binary V4089 Sgr with the aim to obtain absolute masses and radii of the components and to contrast these parameters with stellar e...
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RU Sagittarii
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Maxima of long period variable RU Sagittarii on the 29th May, 2014. Magnitude range: 6.0-13.8 Period: 240.5 days Type: Mira Position (2000): RA 19 58 42.86 | Dec -41° 50' 57.9"
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Nova Cygni 2014
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ATel 6181: High-resolution spectroscopy of Nova Cyg 2014
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