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V1117 Herculis
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Title: V1117 Her: A Herbig Ae star at high Galactic latitude? Author: M. Kun, M. Rácz, L. Szabados We examine the long-term light curve, optical spectrum, spectral energy distribution, and Galactic location of V1117 Her in order to establish its nature. V1117 Her is most probably a young intermedi...
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V2187 Cygni
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Title: Periodic Radio Continuum Emission Associated with the beta Cephei Star V2187 Cyg Author: Mauricio Tapia (1), Luis F. Rodriguez (2,4), Gagik Tovmassian (1), Vicente Rodriguez-Gomez (3), Diego Gonzalez-Buitrago (1), Sergei Zharikov (1), Gisela N. Ortiz-Leon (2) ((1) IA UNAM, Ensenada,...
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SDSS J075653.11+085831
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Title: On the SW Sex-Type Eclipsing Cataclysmic Variable SDSS0756+0858 Author: Gagik Tovmassian, Mercedes Stephania Hernandez, Diego Gonzalez-Buitrago, Sergey Zharikov, Maria Teresa García-Díaz We conducted a spectroscopic and photometric study of SDSS J075653.11+085831. X-ray obser...
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SDSS J051011.01−032826.2
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Title: Discovery and Observations of ASASSN-13db, an EXor Accretion Event on a Low-Mass T Tauri Star Author: Thomas W.-S. Holoien, Jose L. Prieto, Krzysztof Z. Stanek, Christopher S. Kochanek, B. J. Shappee, Z. Zhu, A. Sicilia-Aguilar, D. Grupe, K. Croxall, J. Adams, J. D. Simon, N. Morell S. M. Mc...
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TT Herculis
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Title: The Double Contact Nature of TT Herculis Author: Dirk Terrell, Robert H. Nelson We present new radial velocities and photometry of the short-period Algol TT Herculis. Previous attempts to model the light curves of the system have met with limited success, primarily because of the lack of a r...
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TX Canum Venaticorum
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ATel 5761: The symbiotic star TX CVn has entered an active state Read more RA (2000.0): 124442.08 Dec. (2000.0): +364550.3 Type : ZAND Mag. max : 9.2 Mag. min : 11.8 Mag. system : P Epoch (JD) : - Period (day) : - M-m : - Spec. : B1-B9Veq+K0III-M4
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IC 2408
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IC 2408 is a star located in the constellation Cancer. The star is located near NGC 2667 The star was discovered by German astronomer Max Wolf on the 13th January 1901. Right Ascension 08h 48m 20.3s, Declination +19° 02' 12"
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Thorne-Zytkow object
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Astronomers spot best candidate for a Thorne-Zytkow object, a hybrid star proposed almost 40 years ago. Astronomers say that they have discovered the first example of a long-sought cosmic oddity: a bloated, dying star with a surprise in its core - an ultradense neutron star. Such entities, known a...
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NGC 2142
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NGC 2142 (also 3 Monocerotis, and HD 40967) is a magnitude +4.94 blue giant double star of spectral type B5III located 769 ±125 light-years away in the constellation Monoceros. The star orbits about 25,400 to 22,700 light-years from the galactic center. 3 Monocerotis has a companion star of magnit...
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NGC 764
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NGC 764 is a binary star located in the constellation Cetus. The double star was discovered by American astronomer Ormond Stone using a 26-inch (660 mm) f/14.9 Alvan Clark refractor at the Leander-McCormick observatory at the University of Virginia, Charlottesville, Virginia, on the 6th Jan...
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Wolf- Rayet star DR1
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Title: On the nature of the WO3 star DR1 in IC 1613 Author: F. Tramper, G. Gräfener, O.E. Hartoog, H. Sana, A. de Koter, J.S. Vink, L.E. Ellerbroek, N. Langer, M. Garcia, L. Kaper, S.E. de Mink We present the results of a quantitative spectroscopic analysis of the oxygen-sequence Wolf- Rayet star DR1 i...
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SDSS J074511.56+194926.5
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Title: SDSS J074511.56+194926.5: Discovery of a Metal-Rich and Tidally Distorted Extremely Low Mass White Dwarf Author: A. Gianninas, J. J. Hermes, Warren R. Brown, P. Dufour, Sara D. Barber, Mukremin Kilic, Scott J. Kenyon, Samuel T. Harrold We present the discovery of an unusual, tidally-dis...
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AQ Serpentis
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Title: Absolute properties of the eclipsing binary system AQ Serpentis: A stringent test of convective core overshooting in stellar evolution models Author: Guillermo Torres, Luiz Paulo R. Vaz, Claud H. Sandberg Lacy, Antonio Claret We report differential photometric observations and radia...
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NGC 603
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NGC 603 is a grouping of three stars located in the constellation Triangulum. The asterism was discovered by William Parsons, 3rd Earl of Rosse, using a 182.88 cm (72 inch) speculum reflector at Birr Castle on the 16th November 1850. Right Ascension 01h 34m 44.2s, Declination +30° 13' 57&q...
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NGC 7403
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NGC 7403 is a magnitude +14.0 star located in the constellation Pisces. The star was discovered by American astronomer Philip Sidney Coolidge using a 38.1 cm (15 inch) refractor at the Harvard College Observatory on the 15th November 1859. Right Ascension 22h 53m 06.3s, Declination +01...
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