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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
802 Epyaxa , provisional designation 1915 WR , is a stony Florian asteroid from the inner regions of the asteroid belt , approximately 7.5 kilometers in diameter. It was discovered by German astronomer Max Wolf at the Heidelberg Observatory in southern Germany, on 20 March 1915.[12]
Description
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The S-type asteroid is a member of the Flora family , one of the largest groups of stony asteroids in the main-belt. It orbits the Sun at a distance of 2.0–2.4 AU eccentricity of 0.08 and is tilted by 5 degrees to the plane of the ecliptic .[1] lightcurve analysis rendered a well-defined, concurring rotation period of 4.39 hours (also see adjunct infobox) .
According to the survey carried out by the U.S. Wide-field Infrared Survey Explorer with its NEOWISE mission, the asteroid's surface has a relatively high albedo of 0.29, while the Collaborative Asteroid Lightcurve Link assumes a more moderate value of 0.24, which is also identical to the albedo of the Flora family's namesake, the asteroid 8 Flora .[3] [4]
This minor planet was named after Epyaxa (Ἐπύαξα), wife of King Syennesis and queen of the Kingdom of Cilicia in South Asia Minor in the 5th century BCE. The couple supported the revolt of Cyrus the Younger against his brother Artaxerxes II of Persia , after whom the minor planet 7212 Artaxerxes is named. Epyaxa had her own army and her own lavish budget to spend. Her Kingdom lost its independence and became a Persian satrapy of the Achaemenid Empire after the defeat of Cyrus.[2]
References
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^ a b c d e "LCDB Data for (802) Epyaxa" . Asteroid Lightcurve Database (LCDB). Retrieved 5 January 2016 .
^ a b c Mainzer, A.; Grav, T.; Masiero, J.; Hand, E.; Bauer, J.; Tholen, D.; et al. (November 2011). "NEOWISE Studies of Spectrophotometrically Classified Asteroids: Preliminary Results" . The Astrophysical Journal . 741 (2 ): 25. arXiv :1109.6407 Bibcode :2011ApJ...741...90M . doi :10.1088/0004-637X/741/2/90 . Retrieved 5 January 2016 .
^ Warner, Brian D. (July 2009). "Asteroid Lightcurve Analysis at the Palmer Divide Observatory: 2008 December - 2009 March" . The Minor Planet Bulletin . 36 3 ): 109–116. Bibcode :2009MPBu...36..109W . ISSN 1052-8091 . Retrieved 5 January 2016 .
^ Bennefeld, Craig; Aguilar, Vanessa; Cooper, Terrance; Hupp, William; Pecha, Jeane; Soar, Elysabeth (July 2009). "Asteroid Lightcurve Analysis at Ricky Observatory" . The Minor Planet Bulletin . 36 3 ): 123–124. Bibcode :2009MPBu...36..123B . ISSN 1052-8091 . Retrieved 5 January 2016 .
^ Warner, Brian D. (April 2012). "Asteroid Lightcurve Analysis at the Palmer Divide Observatory: 2011 September - December" . The Minor Planet Bulletin . 39 2 ): 69–80. Bibcode :2012MPBu...39...69W . ISSN 1052-8091 . Retrieved 5 January 2016 .
^ Kryszczynska, A.; Colas, F.; Polinska, M.; Hirsch, R.; Ivanova, V.; Apostolovska, G.; et al. (October 2012). "Do Slivan states exist in the Flora family?. I. Photometric survey of the Flora region" . Astronomy and Astrophysics . 546 : 51. Bibcode :2012A&A...546A..72K . doi :10.1051/0004-6361/201219199 . Retrieved 5 January 2016 .
^ Stephens, Robert D. (April 2015). "Asteroids Observed from CS3: 2014 October - December" . The Minor Planet Bulletin . 42 2 ): 104–106. Bibcode :2015MPBu...42..104S . ISSN 1052-8091 . Retrieved 5 January 2016 .
^ Waszczak, Adam; Chang, Chan-Kao; Ofek, Eran O.; Laher, Russ; Masci, Frank; Levitan, David; et al. (September 2015). "Asteroid Light Curves from the Palomar Transient Factory Survey: Rotation Periods and Phase Functions from Sparse Photometry" . The Astronomical Journal . 150 (3 ): 35. arXiv :1504.04041 Bibcode :2015AJ....150...75W . doi :10.1088/0004-6256/150/3/75 . Retrieved 5 January 2016 .
^ Hanus, J.; Durech, J.; Oszkiewicz, D. A.; Behrend, R.; Carry, B.; Delbo', M.; et al. (2016). "New and updated convex shape models of asteroids based on optical data from a large collaboration network". Astronomy & Astrophysics . 586 : A108. arXiv :1510.07422 Bibcode :2016A&A...586A.108H . doi :10.1051/0004-6361/201527441 .
^ "802 Epyaxa (1915 WR)" . Minor Planet Center . Retrieved 5 January 2016 .
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=802_Epyaxa&oldid=1195667936 " C a t e g o r i e s : ● M i n o r p l a n e t o b j e c t a r t i c l e s ( n u m b e r e d ) ● F l o r a a s t e r o i d s ● D i s c o v e r i e s b y M a x W o l f ● N a m e d m i n o r p l a n e t s ● S - t y p e a s t e r o i d s ● A s t r o n o m i c a l o b j e c t s d i s c o v e r e d i n 1 9 1 5 H i d d e n c a t e g o r i e s : ● U s e d m y d a t e s f r o m O c t o b e r 2 0 1 9 ● 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 J P L S B D B i d e n t i f i e r s ● A r t i c l e s w i t h M P C i d e n t i f i e r s
● T h i s p a g e w a s l a s t e d i t e d o n 1 4 J a n u a r y 2 0 2 4 , a t 2 0 : 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
