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Xi Aquilae information


ξ Aquilae / Libertas
Location of ξ Aquilae (circled)
Observation data
Epoch J2000.0      Equinox J2000.0
Constellation Aquila
Right ascension 19h 54m 14.8815s[1]
Declination +08° 27′ 41.235″[1]
Apparent magnitude (V) 4.722[2]
Characteristics
Spectral type G9.5 IIIb[3]
U−B color index +0.89[4]
B−V color index +1.049[5]
R−I color index 0.57
Astrometry
Radial velocity (Rv)−42.10 ± 0.14[5] km/s
Proper motion (μ) RA: 101.694(107) mas/yr[1]
Dec.: −81.141(77) mas/yr[1]
Parallax (π)17.5183 ± 0.1006 mas[1]
Distance186 ± 1 ly
(57.1 ± 0.3 pc)
Absolute magnitude (MV)+0.96[6]
Details
Mass1.16 ± 0.28[7] M
Radius10.45 ± 0.18[8] R
Luminosity49[7] L
Surface gravity (log g)2.66[7] cgs
Temperature4,783[7] K
Metallicity [Fe/H]−0.13[7] dex
Rotational velocity (v sin i)5.2[5] km/s
Age4.63 ± 2.88[7] Gyr
Other designations
Libertas, BD+08 4261, 59 Aquilae, HD 188310, HIP 97938, HR 7595, SAO 125210[9]
Database references
SIMBADdata

Xi Aquilae (ξ Aquilae, abbreviated Xi Aql, ξ Aql), officially named Libertas /ˈlɪbərtæs/,[10] is a red-clump giant star located at a distance of 186 light-years (57 parsecs) from the Sun in the equatorial constellation of Aquila. As of 2008, an extrasolar planet (designated Xi Aquilae b, later named Fortitudo) has been confirmed in orbit around the star.[11]

  1. ^ a b c d Cite error: The named reference Gaia DR3 was invoked but never defined (see the help page).
  2. ^ Cite error: The named reference aaa515_A11 was invoked but never defined (see the help page).
  3. ^ Cite error: The named reference perkins was invoked but never defined (see the help page).
  4. ^ Cite error: The named reference clpl4_99 was invoked but never defined (see the help page).
  5. ^ a b c Cite error: The named reference aj135_1_209 was invoked but never defined (see the help page).
  6. ^ Cite error: The named reference Anderson2012 was invoked but never defined (see the help page).
  7. ^ a b c d e f Cite error: The named reference apj725_1_721 was invoked but never defined (see the help page).
  8. ^ Cite error: The named reference apj701_1_154 was invoked but never defined (see the help page).
  9. ^ Cite error: The named reference SIMBAD was invoked but never defined (see the help page).
  10. ^ "IAU Catalog of Star Names". Retrieved 28 July 2016.
  11. ^ Cite error: The named reference paspj60_3_539 was invoked but never defined (see the help page).

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Xi Aquilae

Last Update:

Xi AquilaeAquilae, abbreviated Xi Aql, ξ Aql), officially named Libertas /ˈlɪbərtæs/, is a red-clump giant star located at a distance of 186 light-years...

Word Count : 1281

Xi Aquilae b

Last Update:

Xi Aquilae b (abbreviated ξ Aquilae b, ξ Aql b), formally named Fortitudo /fɔːrtɪˈtjuːdoʊ/, is an extrasolar planet approximately 184 light-years from...

Word Count : 287

Fortitudo

Last Update:

courage or fortitude. It may also refer to: Fortitudo (planet), also known Xi Aquilae b Fortitudo-Pro Roma S.G.S., a sports society in Rome, formerly named...

Word Count : 104

List of proper names of exoplanets

Last Update:

51329 radial vel. 1999 2015 NameExoWorlds Fortitudo "Fortitude" (Latin) Xi Aquilae (Libertas) 2.8 136.75 0.68 radial vel. 2007 204.4 2.2 4780 2015 NameExoWorlds...

Word Count : 550

Okayama Planet Search Program

Last Update:

extrasolar planets: (18 Delphini b, xi Aql b, and 41 Lyncis b), around intermediate-mass G and K giants 18 Delphini, Xi Aquilae, and HD 81688. Also, it updated...

Word Count : 230

41 Lyncis b

Last Update:

Delphini b Xi Aquilae b Sato, Bun'ei; et al. (2008). "Planetary Companions around Three Intermediate-Mass G and K Giants: 18 Delphini, ξ Aquilae and HD 81688"...

Word Count : 271

18 Delphini b

Last Update:

Lyncis b Xi Aquilae b Sato, Bun'ei; et al. (2008). "Planetary Companions around Three Intermediate-Mass G and K Giants: 18 Delphini, ξ Aquilae and HD 81688"...

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Zeta Aquilae

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Zeta Aquilae, or ζ Aquilae, is a binary star system in the equatorial constellation of Aquila. It is readily visible with the naked eye, being of the...

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List of exoplanets detected by radial velocity

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693 131.055 0.342 0.7076 2011 GJ 3021 b 3.366 133.712 0.493 0.5109 2000 Xi Aquilae b 2.775 136.755 0.679 0.0197 2008 HD 231701 b 1.784 141.604 0.556 0.1011...

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Pioneer 11

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light-years) of the K dwarf TYC 992-192-1 and will pass near the star Lambda Aquilae in about four million years. Pioneer 11 has now been overtaken by the two...

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Xi Serpentis

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Serpentis, δ Herculis, λ Herculis, μ Herculis, ο Herculis, 112 Herculis, ζ Aquilae, η Serpentis, θ1 Serpentis, ν Ophiuchi and η Ophiuchi. Consequently, the...

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List of brightest natural objects in the sky

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Star 3.35 Zeta Cephei Star Suspected variable star 3.36 Xi Geminorum Star 3.36 Delta Aquilae Binary star system Maximum brightness 3.36 Alpha Reticuli...

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HD 192263

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C.; et al. (2003). "The CORALIE survey for southern extra-solar planets XI. The return of the giant planet orbiting HD 192263". Astronomy and Astrophysics...

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List of proper names of stars

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Alsephina /ælsᵻˈfaɪnə/ Aquila β Aquilae A Alshain /ælˈʃeɪn/ Capricornus ν Capricorni A Alshat /ˈælʃæt/ Aquila α Aquilae Altair From Arabic: (النسر) الطائر...

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List of Arabic star names

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(an-Nisr) uṭ-Ṭāʼir the Flying (Eagle) النسر الطائر النَّسْر الطَّائِر Alpha Aquilae Altais at-Tays the Goat التيس التَّيْس Delta Draconis Alterf aṭ-Ṭarf the...

Word Count : 565

Eta Ophiuchi

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Herculis, Omicron Herculis, 112 Herculis, Zeta Aquilae, Theta¹ Serpentis, Eta Serpentis, Nu Ophiuchi and Xi Serpentis. Consequently, the Chinese name for...

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Theta Serpentis

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Herculis, Mu Herculis, Omicron Herculis, 112 Herculis, Zeta Aquilae, Eta Serpentis, Nu Ophiuchi, Xi Serpentis and Eta Ophiuchi. Consequently, the Chinese name...

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Imperial Roman army

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responsible for Varus' defeat were crushed and the three lost legionary aquilae (eagle-standards) were recovered. If Tiberius ever contemplated advancing...

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List of editiones principes in Latin

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Isidoro di Siviglia. Etimologie o Origini (in Italian). Vol. 1: Libri I-XI. Turin, IT: UTET. p. 28. ISBN 9788802059860. Twomey, Michael W. (2004). "Inventing...

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