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11 Aquarii
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Star in the constellation Aquarius
J2000 Aquarius 21 00 33.84082 -04 43 48.9421 6.216
G1 V +0.63 +0.22
−17.8 2 48.856 –137.781 36.8541 0.0570 4.10
1.20 0.01 1.30 4.32 0.02 2.24 5967 7 commas +0.273 0.006 5 3.70 0.09 0.14
11 Aqr −05°5433 199960 103682 8041 145022
11+Aqr
11 Aquarii is a sun-like star in the zodiac constellation of Aquarius, located 88.5 light years away from the Sun. 11 Aquarii is the Flamsteed designation. It is difficult to see with the naked eye, appearing as a dim, yellow-hued star with an apparent visual magnitude of 6.22. This body is moving closer to the Earth with a heliocentric radial velocity of −17.8 km/s, and is expected to come as close as 19.96 pc ly out in 700,000 years.
It is a G-type main-sequence star with a stellar classification of G1 V. Compared to the Sun, this star has a higher abundance of elements more massive than helium. This indicates it belongs to a class of stars called metal-rich. The star is 3.7 billion years old, it has 1.20 times the mass and 1.30 times the radius of the Sun. It is radiating 2.24 times the luminosity of the Sun from its photosphere at an effective temperature of 5,944 K.
References
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10 Aqr April 27, 2019
XHIP: An extended hipparcos compilation
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Astronomy Letters
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Carvalho-Silva Gabriela Meléndez Jorge Rathsam Anne Shejeelammal J. Martos Giulia Lorenzo-Oliveira Diego Spina Lorenzo Ribeiro Alves Débora April 2025 A New Age–Activity Relation For Solar Analogs that Accounts for Metallicity The Astrophysical Journal Letters en 983 2 L31 10.3847/2041-8213/adc382 free 2025ApJ...983L..31C 2041-8205 2504.17482
The Geneva-Copenhagen survey of the Solar neighbourhood. Ages, metallicities, and kinematic properties of ˜14 000 F and G dwarfs 1 Nordström B. Mayor M. Andersen J. Holmberg J. Pont F. Jørgensen B. R. Olsen E. H. Udry S. Mowlavi N. Astronomy and Astrophysics 418 3 989–1019 10.1051/0004-6361:20035959 2004A&A...418..989N astro-ph/0405198 May 2004 11027621
1 Takeda Yoichi Sato Bun'ei Kambe Eiji Masuda Seiji Izumiura Hideyuki Watanabe Etsuji Ohkubo Michiko Yanagisawa Kenshi Yasaka Yoshiro High-Dispersion Spectra Collection of Nearby F--K Stars at Okayama Astrophysical Observatory: A Basis for Spectroscopic Abundance Standards Publications of the Astronomical Society of Japan 57 1 13–25 2005PASJ...57...13T February 2005 10.1093/pasj/57.1.13
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External links
Simbad query http://simbad.u-strasbg.fr/simbad/sim-id?Ident=@1340361&Name=*++11+Aqr&submit=display+all+measurements September 28, 2009
TCAEP
http://www.scenta.co.uk/tcaep/nonxml/astronomy/constellations/21000109.htm
September 28, 2009
dead
https://archive.today/20130421102204/http://www.scenta.co.uk/tcaep/nonxml/astronomy/constellations/21000109.htm
April 21, 2013
11 Aqr, Space Geody http://www.geody.com/geospot.php?world=space&ufi=103682&alc=11q September 28, 2009
G stars within 100 light-years http://www.solstation.com/stars3/100-gs.htm https://web.archive.org/web/20060102162126/http://solstation.com/stars3/100-gs.htm dead January 2, 2006 September 28, 2009
Nearby Stars Online Spectra
http://stellar.phys.appstate.edu/cgi-bin/spectra/specdisplay.pl?starname=HD199960
September 28, 2009
dead
https://web.archive.org/web/20110717133814/http://stellar.phys.appstate.edu/cgi-bin/spectra/specdisplay.pl?starname=HD199960
July 17, 2011
Category:Aquarius (constellation)
Category:Durchmusterung objects
Aquarii, 011
103682
199960
8041
Category:G1V stars