Global Information Lookup Global Information

Eta Virginis information


η Virginis
(incl. Zaniah)
Location of η Virginis (circled)
Observation data
Epoch J2000      Equinox J2000
Constellation Virgo
Right ascension 12h 19m 54.35783s[1]
Declination –00° 40′ 00.5095″[1]
Apparent magnitude (V) 3.890[2]
Characteristics
Spectral type A2 V[3]
U−B color index +0.055[2]
B−V color index +0.029[2]
Astrometry
Radial velocity (Rv)+2.3[4] km/s
Proper motion (μ) RA: –57.58[1] mas/yr
Dec.: –25.19[1] mas/yr
Parallax (π)12.29 ± 0.45 mas[1]
Distance265 ± 10 ly
(81 ± 3 pc)
Absolute magnitude (MV)−0.66[5]
Orbit[6]
Primaryη Vir Aa
Companionη Vir Ab
Period (P)71.7916 ± 0.0006 days
Semi-major axis (a)0.00736 ± 0.0006″
Eccentricity (e)0.244 ± 0.007
Inclination (i)45.5 ± 0.9°
Orbit[6]
Primaryη Vir A
Companionη Vir B
Period (P)7,896.2 ± 0.2 days
Semi-major axis (a)0.133 ± 0.001″
Eccentricity (e)0.087 ± 0.002
Inclination (i)50.6 ± 0.1°
Details
η Vir Aa
Mass2.5039 ± 0.1246[7] M
Surface gravity (log g)3.0[8] cgs
Temperature9,333[8] K
Metallicity [Fe/H]+0.11[8] dex
Rotational velocity (v sin i)18[9] km/s
η Vir Ab
Mass1.8907 ± 0.0932 M
Details[6]
η Vir B
Mass1.66 ± 0.16 M
Other designations
Zaniah, 15 Virginis, HR 4689, HD 107259, BD+00°2926, FK5 460, HIP 60129, SAO 138721, CCDM 12199-0040, WDS J12199-0040[10]
Database references
SIMBADdata

Eta Virginis (η Virginis, abbreviated Eta Vir, η Vir) is a triple star system in the zodiac constellation of Virgo. From parallax measurements taken during the Hipparcos mission it is about 265 light-years (81 parsecs) from the Sun. It has a combined apparent visual magnitude of 3.89,[2] bright enough to be seen with the naked eye in dark skies.

The system consists of[11] a binary pair designated Eta Virginis A together with a third companion, Eta Virginis B. A's two components are themselves designated Eta Virginis Aa (officially named Zaniah /ˈzniə/, the traditional name of the system)[12][13] and Ab.

  1. ^ a b c d e Cite error: The named reference aaa474_2_653 was invoked but never defined (see the help page).
  2. ^ a b c d Cite error: The named reference saaoc8_59 was invoked but never defined (see the help page).
  3. ^ Cite error: The named reference pasp84_500_584 was invoked but never defined (see the help page).
  4. ^ Cite error: The named reference gcsrv was invoked but never defined (see the help page).
  5. ^ Cite error: The named reference Anderson2012 was invoked but never defined (see the help page).
  6. ^ a b c Cite error: The named reference hummel was invoked but never defined (see the help page).
  7. ^ Cite error: The named reference aj142_1_6 was invoked but never defined (see the help page).
  8. ^ a b c Cite error: The named reference ajs15_21 was invoked but never defined (see the help page).
  9. ^ Cite error: The named reference aaa463_2_671 was invoked but never defined (see the help page).
  10. ^ Cite error: The named reference SIMBAD was invoked but never defined (see the help page).
  11. ^ "Displaying next number in catalog HIP => 60129". Multiple Star Catalog. Archived from the original on 2020-10-03. Retrieved 2018-02-18.
  12. ^ Kunitzsch, Paul; Smart, Tim (2006). A Dictionary of Modern star Names: A Short Guide to 254 Star Names and Their Derivations (2nd rev. ed.). Cambridge, Massachusetts: Sky Pub. ISBN 978-1-931559-44-7.
  13. ^ "Naming Stars". IAU.org. Retrieved 16 December 2017.

and 23 Related for: Eta Virginis information

Request time (Page generated in 0.8859 seconds.)

Eta Virginis

Last Update:

Eta VirginisVirginis, abbreviated Eta Vir, η Vir) is a triple star system in the zodiac constellation of Virgo. From parallax measurements taken during...

Word Count : 1314

Gamma Virginis

Last Update:

This star, along with Beta Virginis (Zavijava), Eta Virginis (Zaniah), Delta Virginis (Minelauva) and Epsilon Virginis (Vindemiatrix), were Al ʽAwwāʼ...

Word Count : 1320

Delta Virginis

Last Update:

Names. This star, along with Beta Virginis (Zavijava), Gamma Virginis (Porrima), Eta Virginis (Zaniah) and Epsilon Virginis (Vindemiatrix), were Al ʽAwwāʼ...

Word Count : 1209

Epsilon Virginis

Last Update:

Epsilon VirginisVirginis, abbreviated Epsilon Vir, ε Vir), formally named Vindemiatrix /vɪndiːmiˈeɪtrɪks/, is a star in the zodiac constellation of...

Word Count : 1062

Planetary transits and occultations

Last Update:

1837 12:50 Mercury Eta Geminorum 17.8° West 9 May 1841 19:35 Venus 17 Tauri 9.2° East 27 September 1843 18:00 Venus Eta Virginis 3.2° West 16 December...

Word Count : 744

Astronomical interferometer

Last Update:

synthesis of an image of Mizar; then a first-ever six-way synthesis of Eta Virginis in 2002; and most recently "closure phase" as a step to the first synthesized...

Word Count : 2654

Spica

Last Update:

stars in the night sky. It has the Bayer designation α Virginis, which is Latinised to Alpha Virginis and abbreviated Alpha Vir or α Vir. Analysis of its...

Word Count : 2512

List of Arabic star names

Last Update:

Angle of the Barking Dog زاوية العواء Beta Virginis Zawiah aka Zaniah az-Zāwiyah The angle الزاوية Eta Virginis Zubenelgenubi az-Zubān ul-Janūbiy Southern...

Word Count : 565

32 Virginis

Last Update:

32 Virginis, also known as FM Virginis, is a star located about 250 light years from the Earth, in the constellation Virgo. Its apparent magnitude ranges...

Word Count : 742

List of Chinese star names

Last Update:

Wall Gamma Virginis Porrima 東上相 Dōng Shàng Xiàng The First Eastern Minister 太微左垣三 Tài Wēi Zuǒ Yuán sān the Third Star of Left Wall Delta Virginis Minelauva...

Word Count : 2218

SS Virginis

Last Update:

2405 and 2485 kelvins. The location of SS Virginis is two degrees north-following of η Virginis (Eta Virginis, Zaniah). Citations "Download Data". aavso...

Word Count : 362

Alpha Comae Berenices

Last Update:

asterism consisting of Alpha Comae Berenices, Eta Virginis, Gamma Virginis, Delta Virginis and Epsilon Virginis. Consequently, the Chinese name for Alpha...

Word Count : 1105

Ross 128

Last Update:

is a red dwarf in the equatorial zodiac constellation of Virgo, near β Virginis. The apparent magnitude of Ross 128 is 11.13, which is too faint to be...

Word Count : 1970

Wolf 424

Last Update:

It is located in the constellation Virgo, between the stars ε Virginis and ο Virginis. The close binary nature of this star was discovered by Dutch American...

Word Count : 649

List of brightest natural objects in the sky

Last Update:

75 Delta Ophiuchi Star Suspected variable star 2.74 Gamma Virginis Binary star system 2.74 Eta Draconis Binary star system 2.75 Alpha2 Librae Binary star...

Word Count : 1546

Behenian fixed star

Last Update:

Bear Eta Ursae Majoris 27 Virgo 12 Venus & Moon magnet succory Algorab Corvi Delta Corvi 13 Libra 43 Saturn & Mars onyx burdock Spica Alpha Virginis 24...

Word Count : 368

Cepheid variable

Last Update:

Cepheids include: Eta Aquilae, Zeta Geminorum, Beta Doradus, RT Aurigae, Polaris, as well as Delta Cephei. Type II Cepheids include: W Virginis and BL Herculis...

Word Count : 4170

Stellar classification

Last Update:

37 Ursae Majoris F2V – 78 Ursae Majoris F7V - Iota Piscium F9V - Beta Virginis F9V - HD 10647 G-type stars, including the Sun, have prominent spectral...

Word Count : 11345

Giant star

Last Update:

with periods less than a day and amplitudes of a magnitude of less; W Virginis variables, more-luminous pulsating variables also known as type II Cepheids...

Word Count : 2321

List of largest stars

Last Update:

S2CID 11978733. Gull, Theodore R.; Damineli, Augusto (November 2009). "JD13 – Eta Carinae in the Context of the Most Massive Stars". Proceedings of the International...

Word Count : 10201

List of nearest stars

Last Update:

equivocal evidence for a third in the habitable zone (2020) Ross 128 (FI Virginis) 11.0074 ±0.0011 Vir* 11h 47m 44.4s +00° 48′ 16″ M4.0Vn 0.168 11.13 13...

Word Count : 5342

List of resolved circumstellar disks

Last Update:

Microscopii 20h 45m 09.53s −31° 20′ 27.2″ 32.4 M1Ve 41 420 8-20 Debris 61 Virginis 13h 18m 24.31s −18° 18′ 40.3″ 27.7 G5 ≥40 300 82 4,600 Debris Tau Ceti...

Word Count : 7063

List of nearest bright stars

Last Update:

Canum Venaticorum G0V 4.24 4.63 12h 33m 44.54s +41° 21′ 26.9″ 27.5 61 Virginis G5V 4.74 5.09 13h 18m 24.31s −18° 18′ 40.3″ 27.9 ζ Tucanae F9V 4.23 4.56...

Word Count : 879

PDF Search Engine © AllGlobal.net