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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 N o m e n c l a t u r e
2 P r o p e r t i e s
3 R e f e r e n c e s
4 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
Z e t a A u r i g a e
2 2 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 ● Ε λ λ η ν ι κ ά ● 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 ● O ʻ z b e k c h a / ў з б е к ч а ● P o l s k i ● P o r t u g u ê s ● R o m â n ă ● 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 ● 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 : 05 h 02 m 2 8 . 6 8 3 4 s , + 4 1 ° 0 4 ′ 3 2 . 9 9 5 ″
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
Binary star system in the constellation Auriga
ζ Aurigae
Location of ζ Aurigae (circled)
Observation dataEpoch J2000 Equinox J2000
Constellation
Auriga
Right ascension 05 h 02 m s [1]
Declination
+41° 04 ′ 32.9342″[1]
Apparent magnitude (V )3.751[2] (3.70 - 3.97[3]
Characteristics
Spectral type
K5 II + B7 V [4]
U−B color index
+0.374[2]
B−V color index
+1.293[2]
R−I color index
0.87
Variable type
Algol [3]
Astrometry Radial velocity (R v +12.11[5] Proper motion (μ) RA: +6.872[1] mas /yr Dec.: -15.567[1] mas /yr Parallax (π)3.791 ± 0.05 mas [6] Distance 860 ± 10 ly pc Absolute magnitude (M V −3.21[7] Orbit [8] Period (P )972.162 d Semi-major axis (a )905 R ☉ Eccentricity (e )0.3973 ± 0.0007 Inclination (i )87.0° Periastron epoch (T )RJD 53039.9 ± 0.10Argument of periastron (ω)328.9° ± 0.13 °Semi-amplitude K 1 23.17 ± 0.02 km/sDetails ζ Aur A Mass ± 0.79[9] M ☉ Radius ± 3 [5] R ☉ Luminosity 4,786[5] L ☉ Surface gravity (log g 1.33[10] cgs Temperature ± 100[5] K Metallicity –0.26[10] dex Rotational velocity (v i ± 1 [5] ζ Aur B Mass 4.8[8] M ☉ Other designations
Saclateni, ζ Aur, Zeta Aur , 8 Aurigae , BD FK5 1137, HD HIP 23453, HR SAO 39966, WDS 05025+4105[11]
Database references SIMBAD data
Zeta Aurigae , or ζ Aurigae , is a binary star system in the northern constellation of Auriga . Based upon parallax measurements, this system is approximately 860 light-years (260 parsecs ) distant from the Sun .[6] apparent visual magnitude of 3.75,[2]
The two components are designated Zeta Aurigae A (officially named Saclateni ,[12] [citation needed and B.
Nomenclature [ edit ]
ζ Aurigae (Latinised to Zeta Aurigae ) is the system's Bayer designation . The designations of the two components as ζ Aurigae A and B multiple star systems , and adopted by the International Astronomical Union (IAU).[13]
The system bore the traditional names Haedus I (also Hoedus ) and Sadatoni (rarely Saclateni ).[14] haedi (Latin : 'kids') of the she-goat Capella , the other being Haedus II, Eta Aurigae . The name Sadatoni is from the Arabic الساعد الثاني as-sāc "the second arm (of the charioteer)". The rare traditional name Azaleh is shared (in the form Hassaleh ) with Iota Aurigae .[15] Working Group on Star Names (WGSN)[16] multiple systems .[17] Saclateni for the component Zeta Aurigae A and Haedus for Eta Aurigae on 30 June 2017 and they are both now so included in the List of IAU-approved Star Names.[12]
In Chinese , 柱 Zhù Pillars asterism consisting of Zeta Aurigae, Epsilon Aurigae , Eta Aurigae, Upsilon Aurigae , Nu Aurigae , Tau Aurigae , Chi Aurigae and 26 Aurigae .[18] Chinese name for Zeta Aurigae itself is 柱二 Zhù èr the Second Star of Pillars .)[19]
Properties [ edit ]
A light curve for Zeta Aurigae showing the brightness change as an eclipse ends, in three photometric colors . The inset plot shows the visible band data with an expanded vertical scale. Adapted from Bennett et al. (1996)[20]
Zeta Aurigae was first recognized as a spectroscopic binary by William Hammond Wright while analyzing photographic plates taken at Lick Observatory between 1898 and 1908. This star is among those earlier described by Antonia Maury as having a composite spectrum .[21] William Edmund Harper using measurements taken at Dominion Observatory , his orbital elements are very similar to the most recent determinations. Harper also noticed that the composite nature of the spectrum had disappeared on the one plate when the K type primary was nearest the sun indicating a possible eclipse .[22] eclipsing binary nature of the system was confirmed by Paul Guthnick , Heribert Schneller and independently Josef Hopmann .[23]
The orbital plane of this eclipsing system is oriented close to the line of sight from the Earth, with an inclination estimated as 87.0°.[8] orbital period of 972 days (2.66 years) and an eccentricity (ovalness) of 0.4.[8] K-type bright giant or supergiant star . Its companion, component B, is a B-type main-sequence star with a stellar classification B5 V or B7 V.[8] [4] ultraviolet light. This causes the brightness change seen during the eclipses (when B is obscured) to be much greater in ultraviolet light than it is in visible light.
References [ edit ]
^ a b c d Kiyokawa, M. (1967), "Photoelectric Observation of Zeta Aurigae during the 1963-64 Eclipse", Publications of the Astronomical Society of Japan , 19 Bibcode :1967PASJ...19..209K .
^ a b Samus, N. N.; Durlevich, O. V.; et al. (2009). "VizieR Online Data Catalog: General Catalogue of Variable Stars (Samus+ 2007-2013)". VizieR On-line Data Catalog: B/GCVS. Originally Published in: 2009yCat....102025S . 1 Bibcode :2009yCat....102025S .
^ a b Shenavrin, V. I.; Taranova, O. G.; Nadzhip, A. E. (January 2011), "Search for and study of hot circumstellar dust envelopes", Astronomy Reports , 55 1 ): 31–81, Bibcode :2011ARep...55...31S , doi :10.1134/S1063772911010070 , S2CID 122700080 .
^ a b c d e Harper, Graham M.; Bennett, Philip D.; Brown, Alexander; Ayres, Thomas R.; Ohnaka, Keiichi; Griffin, Elizabeth (2022). "HST STIS Observations of ζ Aurigae A's Irradiated Atmosphere" . The Astronomical Journal . 164 (1 ): 16. Bibcode :2022AJ....164...16H . doi :10.3847/1538-3881/ac6feb S2CID 250101470 .
^ a b Groenewegen, M. A. T. (2023-01-01), "Orbital parallax of binary systems compared to Gaia DR3 and the parallax zero-point offset at bright magnitudes", Astronomy and Astrophysics , 669 : A4, arXiv :2210.14734 Bibcode :2023A&A...669A...4G , doi :10.1051/0004-6361/202244479 , ISSN 0004-6361 Zeta Aurigae's database entry at VizieR .
^ Anderson, E.; Francis, Ch. (2012), "XHIP: An extended hipparcos compilation", Astronomy Letters , 38 5 ): 331, arXiv :1108.4971 Bibcode :2012AstL...38..331A , doi :10.1134/S1063773712050015 , S2CID 119257644 .
^ a b c d e Eaton, Joel A.; Henry, Gregory W.; Odell, Andrew P. (June 2008), "Orbits and Pulsations of the Classical ζ Aurigae Binaries", The Astrophysical Journal , 679 (2 ): 1490–1498, arXiv :0802.2238 Bibcode :2008ApJ...679.1490E , doi :10.1086/587452 , S2CID 2079219 .
^ Hohle, M. M.; Neuhäuser, R.; Schutz, B. F. (April 2010), "Masses and luminosities of O- and B-type stars and red supergiants", Astronomische Nachrichten , 331 (4 ): 349, arXiv :1003.2335 Bibcode :2010AN....331..349H , doi :10.1002/asna.200911355 , S2CID 111387483 .
^ a b McWilliam, Andrew (December 1990), "High-resolution spectroscopic survey of 671 GK giants", Astrophysical Journal Supplement Series , 74 Bibcode :1990ApJS...74.1075M , doi :10.1086/191527
^ "zet Aur" . SIMBAD Centre de données astronomiques de Strasbourg . Retrieved 2012-08-19 .{{cite web }}: CS1 maint: postscript (link )
^ a b "Naming Stars" . IAU.org. Retrieved 16 December 2017 .
^ Hessman, F. V.; Dhillon, V. S.; Winget, D. E.; Schreiber, M. R.; Horne, K.; Marsh, T. R.; Guenther, E.; Schwope, A.; Heber, U. (2010). "On the naming convention used for multiple star systems and extrasolar planets". arXiv :1012.0707 astro-ph.SR ].
^ Rumrill, H. B. (June 1936). "Star Name Pronunciation" . Publications of the Astronomical Society of the Pacific . 48 Bibcode :1936PASP...48..139R . doi :10.1086/124681 S2CID 120743052 .
^ "Al Kab" . stars.astro.illinois.edu . Retrieved 2017-02-02 .
^ "IAU Working Group on Star Names (WGSN)" . Retrieved 22 May 2016 .
^ "WG Triennial Report (2015-2018) - Star Names" (PDF) . p. 5 . Retrieved 2018-07-14 .
^ (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) 香港太空館 - 研究資源 - 亮星中英對照表 Archived January 29, 2011, at the Wayback Machine , Hong Kong Space Museum. Accessed on line November 23, 2010.
^ Bennett, Philip D.; Harper, Graham M.; Brown, Alexander; Hummel, Christian A. (November 1996). "The Masses and Radii of the Eclipsing Binary zeta Aurigae" . Astrophysical Journal . 471 : 454. Bibcode :1996ApJ...471..454B . doi :10.1086/177981
^ Campbell, W. W. (1909). "Eleven stars having variable radial velocities" . The Astrophysical Journal . 29 Bibcode :1909ApJ....29..224C doi :10.1086/141644
^ Harper, W. E. (1924). "The Orbit of the spectroscopic binary Zeta Aurigae" . Publications of the Dominion Observatory Ottawa . 3 Bibcode :1924PDAO....3..151H .
^ Christie, William H.; Wilson, O. C. (1935). "ζ Aurigae: the Structure of a Stellar Atmosphere" . The Astrophysical Journal . 81 Bibcode :1935ApJ....81..426C doi :10.1086/143645
External links [ edit ]
R e t r i e v e d f r o m " https://en.wikipedia.org/w/index.php?title=Zeta_Aurigae&oldid=1232590099 " C a t e g o r i e s : ● K - t y p e b r i g h t g i a n t s ● B - t y p e m a i n - s e q u e n c e s t a r s ● E c l i p s i n g b i n a r i e s ● A l g o l v a r i a b l e s ● A u r i g a ( c o n s t e l l a t i o n ) ● B a y e r 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 ● F l a m s t e e d 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 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 ● S t a r s w i t h p r o p e r n a m e s H i d d e n c a t e g o r i e s : ● C S 1 m a i n t : p o s t s c r i p t ● 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 l l a r t i c l e s w i t h u n s o u r c e d s t a t e m e n t s ● A r t i c l e s w i t h u n s o u r c e d s t a t e m e n t s f r o m D e c e m b e r 2 0 2 2 ● 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 4 J u l y 2 0 2 4 , a t 1 4 : 4 0 ( 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
05h02m28.6834s, +41° 04′ 32.995″
