106 Aquarii

Star in the constellation Aquarius i1 Aquarii other star systems with this Bayer designation i Aquarii Aquarius constellation map.svg center 280 right Red circle.svg 8 106 Aquarii 120 646 Location of 106 Aquarii (circled) J2000.0 (ICRS) Aquarius 23 44 12.07852 −18 16 36.9999 +5.244 main sequence B9 V −0.086 −0.239 +14.0 +27.23 −2.94 8.7588 0.2859 −0.07 3.0 3.0 146 11505 142 commas 3.95 0.07 328 48 i1 Aqr 106 Aqr −19°6500 1621 222847 117089 8998 165854 106+Aqr 106 Aquarii, abbreviated 106 Aqr, is a single star in the equatorial constellation of Aquarius. 106 Aquarii is the Flamsteed designation, and it also bears the Bayer designation i1 Aquarii. It has an apparent visual magnitude of +5.2, making it bright enough to be viewed from the suburbs according to the Bortle Dark-Sky Scale. An annual parallax shift of 8.61 milliarcseconds yields an estimated distance of around 380 ly pc off on from Earth. The spectrum of this star fits a stellar classification of B9 V, indicating this is a B-type main sequence star. It is spinning rapidly with a projected rotational velocity of 328 km/s. The star has three times the mass of the Sun and is radiating 146 times the Sun's luminosity from its photosphere at an effective temperature of commas 11,505 K. X-ray emission with a luminosity of 6.0e29 erg s−1 has been detected from this star. This is unusual since a B-type star normally does not have any significant X-ray emission. Instead, it may have an undetected lower mass companion. References 106 Aqr -- Star SIMBAD Centre de Données astronomiques de Strasbourg http://simbad.u-strasbg.fr/simbad/sim-id?Ident=106+Aquarii 2012-07-15 . 2391220091406075648 Zorec J. Royer F. Rotational velocities of A-type stars. IV. Evolution of rotational velocities Astronomy and Astrophysics 2012 537 A120 10.1051/0004-6361/201117691 free 1201.2052 2012A&A...537A.120Z 117089 Stassun Keivan G. Oelkers Ryan J. Paegert Martin Torres Guillermo Pepper Joshua De Lee Nathan Collins Kevin Latham David W. Muirhead Philip S. Chittidi Jay Rojas-Ayala Bárbara Fleming Scott W. Rose Mark E. Tenenbaum Peter Ting Eric B. Kane Stephen R. Barclay Thomas Bean Jacob L. Brassuer C. E. Charbonneau David Ge Jian Lissauer Jack J. Mann Andrew W. McLean Brian Mullally Susan Narita Norio Plavchan Peter Ricker George R. Sasselov Dimitar Seager S. 1 The Revised TESS Input Catalog and Candidate Target List The Astronomical Journal 2019 158 4 138 10.3847/1538-3881/ab3467 free 1905.10694 2019AJ....158..138S Of the grouping of four stars within the circle, 106 Aquarii is the second from the left per:Roger W. 1 Sinnott Michael A. C. Perryman Millennium Star Atlas 3 Sky Publishing Corporation and the European Space Agency 1997 1351 0-933346-82-4 . F. van Leeuwen November 2007 Validation of the new Hipparcos reduction Astronomy and Astrophysics 474 2 653–664 2007A&A...474..653V 10.1051/0004-6361:20078357 . 0708.1752 18759600 Houk Nancy Michigan Catalogue of Two-dimensional Spectral Types for the HD Stars 4 Ann Arbor Dept. of Astronomy, University of Michigan 1978 1988mcts.book.....H . 1 Sixth Catalogue of Fundamental Stars (FK6). Part I. Basic fundamental stars with direct solutions Wielen R. Schwan H. Dettbarn C. Lenhardt H. Jahreiß H. Jährling R. Veroeffentlichungen des Astronomischen Rechen-Instituts Heidelberg Astronomisches Rechen-Institut Heidelberg 35 1999 35 1 1999VeARI..35....1W . 1 Gutierrez-Moreno Adelina Moreno H. Stock J. Torres C. Wroblewski H. A System of photometric standards Publications of the Department of Astronomy University of Chile Publicaciones Universidad de Chile, Department de Astronomy 1 1–17 1966 1966PDAUC...1....1G . 1 Hubrig S. Le Mignant D. North P. Krautter J. Search for low-mass PMS companions around X-ray selected late B stars Astronomy and Astrophysics 372 152–164 10.1051/0004-6361:20010452 2001A&A...372..152H astro-ph/0103201 . June 2001 17507782 A Stellar Rotation Census of B Stars: From Zams to Tams The Astrophysical Journal 722 605–619 2010 1 Huang Wenjin Gies D. R McSwain M. V 1 2010ApJ...722..605H 1008.1761 10.1088/0004-637X/722/1/605 118532653 . A spectroscopic survey on the multiplicity of high-mass stars Monthly Notices of the Royal Astronomical Society 1 Chini R. Hoffmeister V. H. Nasseri A. Stahl O. Zinnecker H. 424 3 1925–1929 2012 2012MNRAS.424.1925C 10.1111/j.1365-2966.2012.21317.x free 1205.5238 119120749 . External links Aladin previewer, image Aladin sky atlas, image Category:Aquarius (constellation) Aquarii, i1 Aquarii, 106 Category:B9V stars 117089 222847 8998 BD-19 6500