108 Aquarii

Star in the constellation Aquarius i3 Aquarii other star systems with this Bayer designation i Aquarii 108 Aquarii 250px The visual band light curve of 108 Aquarii, showing the variation over the star's 3.7352 day rotation period. Adapted from Adelman (1999) J2000 23 51 21.33832 −18 54 32.9937 5.194 Aquarius A0VpSiSr −0.135 −0.396 α² CVn 16.76 0.99 +26.82 −4.27 10.23 0.31 +0.08 3.594 0.005Borisov Sviatoslav B. Chilingarian Igor V. Rubtsov Evgenii V. Ledoux Cédric Melo Claudio Grishin Kirill A. Katkov Ivan Yu. Goradzhanov Vladimir S. Afanasiev Anton V. Kasparova Anastasia V. Saburova Anna S. New Generation Stellar Spectral Libraries in the Optical and Near-infrared. I. The Recalibrated UVES-POP Library for Stellar Population Synthesis. The Astrophysical Journal Supplement Series 266 1 20 11 2023ApJS..266...11B 10.3847/1538-4365/acc321 253581675 free May 2023 2211.09130 2.57Shulyak D. Paladini C. Li Causi G. Perraut K. Kochukhov O. Interferometry of chemically peculiar stars: theoretical predictions versus modern observing facilities Monthly Notices of the Royal Astronomical Society 443 2 1629-1642 1406.6093 2014MNRAS.443.1629S 10.1093/mnras/stu1259 free 96452769 September 2014 150.97117629 12449 124 commas 0.878 0.055 4.255 0.045 3.75413 days 29.84 1.77 860,000 −19°6522 223640 117629 9031 165918 HD+223640 108 Aquarii (abbreviated 108 Aqr) is a star in the equatorial constellation of Aquarius. 108 Aquarii is the Flamsteed designation, although it also bears the Bayer designation i3 Aquarii and the variable star designation ET Aquarii. It has an apparent visual magnitude of 5.194 and can be seen with the naked eye under suitably dark skies. Based upon an annual parallax shift of 10.23 (with a 3% margin of error), the distance to this star is 319 ly pc off on. In 1962, Helmut Abt and John C. Golson announced that 108 Aquarii is a variable star. It was given its variable star designation in 1973. This is an Ap star; meaning it has a peculiar spectrum that shows an overabundance of certain elements. It has more than three times the mass of the Sun and is 2.5 times the Sun's radius. 108 Aquarii is radiating 132 times the luminosity of the Sun from its outer atmosphere at an effective temperature of 12,274 K. At this heat, the star has the white hue of an A-type star. References Adelman Saul J. Variability of the uvby Light Curves of the Magnetic CP Star 108 Aquarii Baltic Astronomy January 1999 8 3 369–383 10.1515/astro-1999-0304 1999BaltA...8..369A 117653066 free 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 Abt Helmut A. Golson John C. Colors and Variability of Magnetic Stars Astrophysical Journal July 1962 136 35–51 10.1086/147349 https://articles.adsabs.harvard.edu/pdf/1962ApJ...136...35A 18 November 2024 Kukarkin B. V. Kholopov P. N. Kukarkina N. P. Perova N. B. 59th Name-List of Variable Stars Information Bulletin on Variable Stars October 1973 834 1–22 https://articles.adsabs.harvard.edu/pdf/1973IBVS..834....1K 18 November 2024 North P. Do SI stars undergo any rotational braking? Astronomy and Astrophysics 334 181–187 1998A&A...334..181N astro-ph/9802286 . June 1998 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 . * i03 Aqr 2012-07-15 Przybylski A. Kennedy P. M. Radial velocities and three-colour photometry of 166 southern stars Monthly Notices of the Royal Astronomical Society 131 95–104 1965 1965MNRAS.131...95P . 10.1093/mnras/131.1.95 free 1995ApJS...99..135A The Relation between Rotational Velocities and Spectral Peculiarities among A-Type Stars The Astrophysical Journal Supplement Series 99 135 Abt Helmut A. Morrell Nidia I. 1995 10.1086/192182 free 10.3847/1538-4357/ac3335 2022 Rotation Signature of TESS B-type Stars. A Comprehensive Analysis Barraza L. F. Gomes R. L. Messias Y. S. Leão I. C. Almeida L. A. Janot-Pacheco E. Brito A. C. Brito F. A. C. Santana J. V. Gonçalves N. S. Das Chagas M. L. Teixeira M. A. De Medeiros J. R. Canto Martins B. L. The Astrophysical Journal 924 2 117 2202.01022 2022ApJ...924..117B 246030494 free External links Image ET Aquarii Category:Aquarius (constellation) Category:Alpha2 Canum Venaticorum variables Aquarii, i3 Aquarii, 108 Aquarii, ET 223640 117629 9031 Category:Durchmusterung objects Category:Magnetic chemically peculiar stars Category:A0V stars