107 Aquarii

Star in the constellation Aquarius i2 Aquarii other star systems with this Bayer designation i Aquarii 107 Aquarii J2000.0 (ICRS) 23 46 00.92254 −18 40 42.0313 +5.305 (5.72/6.72) Aquarius F2 III + F2 V +0.287 +0.141 −0.70 +0.97 y A +132.908 +16.011 16.1378 0.2169 B +139.256 +10.050 20.0193 0.3991 A 2.43 16.647 7,482 70 B 1.47 4.421 6,889 BD−19 6506, HD 223024, HIP 117218, HR 9002, SAO 165867, WDS J23460-1841 107+Aqr 107 Aquarii (abbreviated 107 Aqr) is a double star in the equatorial constellation of Aquarius. 107 Aquarii is the Flamsteed designation, although it also bears the Bayer designation i2 Aquarii. The pair has an angular separation of 6.787 arcseconds. They have a combined apparent visual magnitude of +5.305, with individual magnitudes of 5.72 and 6.72. The annual parallax shift measured for the two components is 16.1 mas and 20.0 mas respectively, although with significant statistical margins of error and flags for potential unreliability of both values. This indicates the system may be at a distance of 160-200 ly pc off on from Earth. References 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 Royer F. Zorec J. Gómez A. E. Rotational velocities of A-type stars. III. Velocity distributions Astronomy and Astrophysics 463 2 671–682 10.1051/0004-6361:20065224 2007A&A...463..671R astro-ph/0610785 . February 2007 18475298 1 Rakos K. D. Albrecht R. Jenkner H. Kreidl T. Michalke R. Oberlerchner D. Santos E. Schermann A. Schnell A. Weiss W. Photometric and astrometric observations of close visual binaries Astronomy and Astrophysics Supplement Series 47 February 1982 221–235 1982A&AS...47..221R Eggleton P. P. Tokovinin A. A. A catalogue of multiplicity among bright stellar systems Monthly Notices of the Royal Astronomical Society 389 2 869–879 10.1111/j.1365-2966.2008.13596.x 2008MNRAS.389..869E . 0806.2878 September 2008 free 14878976 * i02 Aqr 2007-07-14 2012AstL...38..331A XHIP: An extended hipparcos compilation Astronomy Letters 38 5 331 Anderson E. Francis Ch. 2012 1108.4971 10.1134/S1063773712050015 119257644 2391133607944627712 2391133607944627840 External links Aladin previewer, image Image 107 Aquarii Aladin sky atlas, image Aquarii, i2 Aquarii, 107 223024 117218 9002 Category:Aquarius (constellation) Category:Double stars Category:F-type main-sequence stars Category:F-type giants Category:Durchmusterung objects