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● M a i n p a g e ● C o n t e n t s ● C u r r e n t e v e n t s ● R a n d o m a r t i c l e ● A b o u t W i k i p e d i a ● C o n t a c t u s ● D o n a t e
C o n t r i b u t e
● H e l p ● L e a r n t o e d i t ● C o m m u n i t y p o r t a l ● R e c e n t c h a n g e s ● U p l o a d f i l e
S e a r c h
Search
A p p e a r a n c e
● C r e a t e a c c o u n t ● L o g i n
P e r s o n a l t o o l s
● C r e a t e a c c o u n t ● L o g i n
P a g e s f o r l o g g e d o u t e d i t o r s l e a r n m o r e ● C o n t r i b u t i o n s ● T a l k
( T o p )
1 E t y m o l o g y
2 S t a r s y s t e m
3 S e e a l s o
4 R e f e r e n c e s
5 E x t e r n a l l i n k s
T o g g l e t h e t a b l e o f c o n t e n t s
M u H e r c u l i s
2 0 l a n g u a g e s
● A s t u r i a n u ● B o s a n s k i ● C a t a l à ● D e u t s c h ● E s p a ñ o l ● ف ا ر س ی ● F r a n ç a i s ● 한 국 어 ● B a h a s a I n d o n e s i a ● I t a l i a n o ● N e d e r l a n d s ● 日 本 語 ● P o l s k i ● P o r t u g u ê s ● Р у с с к и й ● S l o v e n č i n a ● S u o m i ● S v e n s k a ● 粵 語 ● 中 文
E d i t l i n k s
● A r t i c l e ● T a l k
E n g l i s h
● R e a d ● E d i t ● V i e w h i s t o r y
T o o l s
T o o l s
A c t i o n s
● R e a d ● E d i t ● V i e w h i s t o r y
G e n e r a l
● W h a t l i n k s h e r e ● R e l a t e d c h a n g e s ● U p l o a d f i l e ● S p e c i a l p a g e s ● P e r m a n e n t l i n k ● P a g e i n f o r m a t i o n ● C i t e t h i s p a g e ● G e t s h o r t e n e d U R L ● D o w n l o a d Q R c o d e ● W i k i d a t a i t e m
P r i n t / e x p o r t
● D o w n l o a d a s P D F ● P r i n t a b l e v e r s i o n
A p p e a r a n c e
C o o r d i n a t e s : 17 h 46 m 2 7 . 5 2 6 6 7 s , + 2 7 ° 4 3 ′ 1 4 . 4 3 7 9 ″
F r o m W i k i p e d i a , t h e f r e e e n c y c l o p e d i a
Quadruple star system in the constellation Hercules
Mu Herculis
Hercules constellation showing Mu Herculis (μ Her) as one of stars in the hero's elbow.
Observation dataEpoch J2000 Equinox J2000
Constellation Hercules
μ Her Aab (μ1
Right ascension 17 h 46 m s [1]
Declination +27° 43 ′ 14.4379″[1]
Apparent magnitude (V )3.417 ± 0.014 [1]
μ Her BC (μ2
Right ascension 17 h 46 m s [2]
Declination +27° 43 ′ 01.45″[2]
Apparent magnitude (V )10.2 / 10.7[3]
Characteristics
μ Her Aab
Spectral type
G5IV[4] [5]
U−B color index
+0.40[6]
B−V color index
+0.76[6]
μ Her BC
Spectral type
M3.5V[7]
U−B color index
+1.00[6]
B−V color index
+1.50[6]
Astrometry μ Her Aab Radial velocity (R v −17.07 ± 0.12[8] Proper motion (μ) RA: −291.66[1] mas /yr Dec.: −749.60[1] mas /yr Parallax (π)120.33 ± 0.16 mas [1] Distance 27.11 ± 0.04 ly pc Absolute magnitude (M V 3.82 ± 0.02[8] μ Her BC Proper motion (μ) RA: −343.35[9] mas /yr Dec.: −743.88[9] mas /yr Parallax (π)119.8871 ± 0.2055 mas [10] Distance 27.21 ± 0.05 ly pc Absolute magnitude (M V +10.26[11]
Position (relative to μ Her Aab) [12]
Component μ Her BC Angular distance 35 ″ Orbit [5] Primary μ Her Aa Companion μ Her Ab Period (P )98.9 ± 22.7 yr Semi-major axis (a )2.9 ± 0.3″ Eccentricity (e )0.44 ± 0.06 Inclination (i )62.82 ± 4.66° Longitude of the node (Ω)80.4 ± 1.7° Periastron epoch (T )B Argument of periastron (ω)214 ± 16° Semi-amplitude K 1 1.12 ± 0.10 km/s Orbit [3] Primary μ Her B Companion μ Her C Period (P )43.127 ± 0.013 yr Semi-major axis (a )1.385 ± 0.038″ Eccentricity (e )0.1796 ± 0.0009 Inclination (i )66.06 ± 0.15° Longitude of the node (Ω)60.07 ± 0.17° Periastron epoch (T )B 2008.335 ± 0.073 Argument of periastron (ω)172.85 ± 0.64° Details μ Her Aa Mass 1.11 ± 0.01[8] M ☉ Radius 1.73 ± 0.02[8] R ☉ Luminosity 2.54 ± 0.08[8] L ☉ Surface gravity (log g 3.98 ± 0.10[8] cgs Temperature 5560 ± 80[8] K Metallicity 0.28 ± 0.07[8] dex Rotation 52 +3 d [8] Rotational velocity (v i 1.7 ± 0.4[8] Age +0.3 [8] Gyr μ Her Ab Mass 0.32[5] M ☉ μ Her B Mass 0.44[13] M ☉ Radius 0.60[14] R ☉ Luminosity 0.087[14] L ☉ Temperature 4,050[14] K Metallicity +0.21[14] dex μ Her C Mass 0.39[13] M ☉ Other designations
86 Gl HR BD HD LHS 3326/3325, LTT 15266, SAO 85397, FK5 667, LFT 1374, GC ADS 10786, HIP 86974.[15]
Database references SIMBAD μ Her Aab μ Her BC
Mu Herculis (μ Herculis ) is a nearby quadruple star system about 27.1 light years from Earth in the constellation Hercules . Its main star, Mu Herculis A is fairly similar to the Sun although more highly evolved with a stellar classification of G5 IV. Since 1943, the spectrum of this star has served as one of the stable anchor points by which other stars are classified.[16] [8]
Etymology
[ edit ]
In the catalogue of stars in the Calendarium of Al Achsasi Al Mouakket , this star was designated Marfak Al Jathih Al Aisr , which was translated into Latin as Cubitum Sinistrum Ingeniculi , meaning the left elbow of kneeling man .[17]
In Chinese , 天市左垣 Tiān Shì Zuǒ Yuán Left Wall of Heavenly Market Enclosure δ Herculis , λ Herculis , ο Herculis , 112 Herculis , ζ Aquilae , θ1 , η Serpentis , ν Ophiuchi , ξ Serpentis and η Ophiuchi .[18] Chinese name for μ Herculis itself is 天市左垣三 Tiān Shì Zuǒ Yuán sān the Third Star of Left Wall of Heavenly Market Enclosure ), represent Jiuhe (九河, lit. meaning nine rivers ), possibly for Jiujiang , the prefecture-level city in Jiangxi, China, which is the same literally meaning with Jiuhe .[19] [20] Kew Ho appeared.[21]
Star system
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Mu Herculis is a quadruple star system. The brightest star is a well-studied G-type subgiant , whose parameters are precisely determined from asteroseismology .[8] near-infrared spectroscopy .[5] red dwarf with a spectral type of M4V and a mass of 0.32 M ☉ .[5] 1
The secondary component, also known as Mu2 [12] [22] [15] [3]
See also
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References
[ edit ]
^ a b Cutri, R. M.; et al. (2003). "2MASS All-Sky Catalog of Point Sources". VizieR On-line Data Catalog . 2246 . Bibcode :2003yCat.2246....0C .
^ a b c "Sixth Catalog of Orbits of Visual Binary Stars" . United States Naval Observatory . Archived from the original on 1 August 2017. Retrieved 23 March 2017 .
^ Yang, Wuming; Meng, Xiangcun (April 2010), "Models of μ Her with asteroseismic constraints", New Astronomy , 15 4 ): 367–372, arXiv :0911.0749 Bibcode :2010NewA...15..367Y , doi :10.1016/j.newast.2009.11.001 , S2CID 119121800
^ a b c d e Roberts Jr., Lewis C.; Mason, Brian D.; Aguilar, Jonathan; Carson, Joseph; Crepp, Justin; Beichman, Charles; Brenner, Douglas; Burruss, Rick; Cady, Eric; Luszcz-Cook, Statia; Dekany, Richard; Hillenbrand, Lynne; Hinkley, Sasha; King, David; Lockhart, Thomas G.; Nilsson, Ricky; Oppenheimer, Rebecca; Parry, Ian R.; Pueyo, Laurent; Rice, Emily L.; Sivaramakrishnan, Anand; Soummer, Rémi; Vasisht, Gautam; Veicht, Aaron; Wang, Ji; Zhai, Chengxing; Zimmerman, Neil T. (2016). "Characterization of the Companion to μ Her" . The Astronomical Journal . 151 (6 ): 169. arXiv :1604.06494 Bibcode :2016AJ....151..169R . doi :10.3847/0004-6256/151/6/169 S2CID 43403927 .
^ a b c d Mermilliod, J.-C. (1986). "Compilation of Eggen's UBV data, transformed to UBV (unpublished)" . Catalogue of Eggen's UBV Data : 0. Bibcode :1986EgUBV........0M .
^ Alonso-Floriano, F. J.; Morales, J. C.; Caballero, J. A.; Montes, D.; Klutsch, A.; Mundt, R.; Cortés-Contreras, M.; Ribas, I.; Reiners, Ansgar; Amado, P. J.; Quirrenbach, A.; Jeffers, S. V. (2015). "CARMENES input catalogue of M dwarfs" (PDF) . Astronomy & Astrophysics . 577 : A128. arXiv :1502.07580 Bibcode :2015A&A...577A.128A . doi :10.1051/0004-6361/201525803 . S2CID 53135130 . [permanent dead link
^ a b c d e f g h i j k l m Grundahl, F.; Andersen, M. Fredslund; Christensen-Dalsgaard, J.; Antoci, V.; Kjeldsen, H.; Handberg, R.; Houdek, G.; Bedding, T. R.; Pallé, P. L.; Jessen-Hansen, J.; Aguirre, V. Silva; White, T. R.; Frandsen, S.; Albrecht, S.; Andersen, M. I.; Arentoft, T.; Brogaard, K.; Chaplin, W. J.; Harpsøe, K.; Jørgensen, U. G.; Karovicova, I.; Karoff, C.; Rasmussen, P. Kjærgaard; Lund, M. N.; Lundkvist, M. Sloth; Skottfelt, J.; Norup Sørensen, A.; Tronsgaard, R.; Weiss, E. (2017). "First Results from the Hertzsprung SONG Telescope: Asteroseismology of the G5 Subgiant Star μ Herculis" . The Astrophysical Journal . 836 (1 ): 142. arXiv :1701.03365 Bibcode :2017ApJ...836..142G . doi :10.3847/1538-4357/836/1/142 S2CID 119480210 .
^ a b Röser, S.; Schilbach, E.; Schwan, H.; Kharchenko, N. V.; Piskunov, A. E.; Scholz, R.-D. (2008). "PPM-Extended (PPMX) – a catalogue of positions and proper motions". Astronomy and Astrophysics . 488 (1 ): 401. arXiv :0806.1009 Bibcode :2008A&A...488..401R . doi :10.1051/0004-6361:200809775 . S2CID 17350617 .
^ Brown, A. G. A. ; et al. (Gaia collaboration) (2021). "Gaia Early Data Release 3: Summary of the contents and survey properties" . Astronomy & Astrophysics 649 : A1. arXiv :2012.01533 Bibcode :2021A&A...649A...1G . doi :10.1051/0004-6361/202039657 S2CID 227254300 . (Erratum: doi :10.1051/0004-6361/202039657e ) . Gaia EDR3 record for this source at VizieR .
^ Davison, Cassy L.; White, R. J.; Henry, T. J.; Riedel, A. R.; Jao, W. -C.; Bailey, J. I.; Quinn, S. N.; Cantrell, J. R.; Subasavage, J. P.; Winters, J. G. (2015). "A 3D Search for Companions to 12 Nearby M Dwarfs". The Astronomical Journal . 149 (3 ): 106. arXiv :1501.05012 Bibcode :2015AJ....149..106D . doi :10.1088/0004-6256/149/3/106 . S2CID 9719725 .
^ a b "* mu.02 Her" . SIMBAD Centre de données astronomiques de Strasbourg . Retrieved 24 May 2017 .
^ a b "Multiple Star Catalog" . Archived from the original on 2018-12-03. Retrieved 2018-12-02 .
^ a b c d Gaidos, E.; Mann, A. W.; Lépine, S.; Buccino, A.; James, D.; Ansdell, M.; Petrucci, R.; Mauas, P.; Hilton, E. J. (2014). "Trumpeting M dwarfs with CONCH-SHELL: A catalogue of nearby cool host-stars for habitable exoplanets and life" . Monthly Notices of the Royal Astronomical Society . 443 (3 ): 2561. arXiv :1406.7353 Bibcode :2014MNRAS.443.2561G . doi :10.1093/mnras/stu1313
^ a b "* mu. Her" . SIMBAD Centre de données astronomiques de Strasbourg . Retrieved 24 May 2017 .
^ Garrison, R. F. (December 1993), "Anchor Points for the MK System of Spectral Classification" , Bulletin of the American Astronomical Society , 25 Bibcode :1993AAS...183.1710G , archived from the original on 2019-06-25, retrieved 2012-02-04
^ Knobel, E. B. (June 1895), "Al Achsasi Al Mouakket, on a catalogue of stars in the Calendarium of Mohammad Al Achsasi Al Mouakket", Monthly Notices of the Royal Astronomical Society 55 8 ): 429, Bibcode :1895MNRAS..55..429K , doi :10.1093/mnras/55.8.429
^ (in Chinese) 中國星座神話 , written by 陳久金. Published by 台灣書房出版有限公司, 2005, ISBN 978-986-7332-25-7 .
^ (in Chinese) AEEA (Activities of Exhibition and Education in Astronomy) 天文教育資訊網 2006 年6 月23 日
^ (in Chinese) English-Chinese Glossary of Chinese Star Regions, Asterisms and Star Name Archived 2010-08-10 at the Wayback Machine , Hong Kong Space Museum. Accessed on line November 23, 2010.
^ Star Name - R.H. Allen p. 238
^ Turner, Nils H.; et al. (June 2001), "Search for Faint Companions to Nearby Solar-like Stars using the Adaptive Optics System at Mount Wilson Observatory", The Astronomical Journal , 121 (6 ): 3254–3258, Bibcode :2001AJ....121.3254T , doi :10.1086/321075
External links
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R e t r i e v e d f r o m " https://en.wikipedia.org/w/index.php?title=Mu_Herculis&oldid=1186943790 " C a t e g o r i e s : ● H e r c u l e s ( c o n s t e l l a t i o n ) ● M u l t i p l e s t a r s y s t e m s ● G - t y p e s u b g i a n t s ● M - t y p e m a i n - s e q u e n c e s t a r s ● S o l a r - t y p e s t a r s ● B a y e r o b j e c t s ● F l a m s t e e d o b j e c t s ● H i p p a r c o s o b j e c t s ● B r i g h t S t a r C a t a l o g u e o b j e c t s ● G l i e s e a n d G J o b j e c t s ● D u r c h m u s t e r u n g o b j e c t s ● H e n r y D r a p e r C a t a l o g u e o b j e c t s H i d d e n c a t e g o r i e s : ● A l l a r t i c l e s w i t h d e a d e x t e r n a l l i n k s ● A r t i c l e s w i t h d e a d e x t e r n a l l i n k s f r o m S e p t e m b e r 2 0 2 3 ● A r t i c l e s w i t h p e r m a n e n t l y d e a d e x t e r n a l l i n k s ● A r t i c l e s i n t e n t i o n a l l y c i t i n g p u b l i c a t i o n s w i t h e r r a t a ● A r t i c l e s w i t h C h i n e s e - l a n g u a g e s o u r c e s ( zh ) ● W e b a r c h i v e t e m p l a t e w a y b a c k l i n k s ● A r t i c l e s w i t h s h o r t d e s c r i p t i o n ● S h o r t d e s c r i p t i o n i s d i f f e r e n t f r o m W i k i d a t a ● A r t i c l e s c o n t a i n i n g C h i n e s e - l a n g u a g e t e x t ● A r t i c l e s c o n t a i n i n g e x p l i c i t l y c i t e d E n g l i s h - l a n g u a g e t e x t
● T h i s p a g e w a s l a s t e d i t e d o n 2 6 N o v e m b e r 2 0 2 3 , a t 1 3 : 2 8 ( U T C ) . ● T e x t i s a v a i l a b l e u n d e r t h e C r e a t i v e C o m m o n s A t t r i b u t i o n - S h a r e A l i k e L i c e n s e 4 . 0 ;
a d d i t i o n a l t e r m s m a y a p p l y . B y u s i n g t h i s s i t e , y o u a g r e e t o t h e T e r m s o f U s e a n d P r i v a c y P o l i c y . W i k i p e d i a ® i s a r e g i s t e r e d t r a d e m a r k o f t h e W i k i m e d i a F o u n d a t i o n , I n c . , a n o n - p r o f i t o r g a n i z a t i o n . ● P r i v a c y p o l i c y ● A b o u t W i k i p e d i a ● D i s c l a i m e r s ● C o n t a c t W i k i p e d i a ● C o d e o f C o n d u c t ● D e v e l o p e r s ● S t a t i s t i c s ● C o o k i e s t a t e m e n t ● M o b i l e v i e w
17h46m27.52667s, +27° 43′ 14.4379″
