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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
20488 Pic-du-Midi (provisional designation 1999 OL asteroid from the middle region of the asteroid belt , approximately 7 kilometers in diameter. It was discovered on 17 July 1999, by astronomers at Pises Observatory in southern France.[7] Pic du Midi Observatory .[2]
Orbit and classification [ edit ]
Pic-du-Midi is a non-family from the main belt's background population . It orbits the Sun in the central main-belt at a distance of 2.3–3.1 AU eccentricity of 0.15 and an inclination of 7° with respect to the ecliptic .[1] precovery was taken by Spacewatch at Kitt Peak in 1997, extending the body's observation arc by more than 2 years prior to its official discovery observation at Pises.[7]
Physical characteristics [ edit ]
Rotation period [ edit ]
In September 2013, a photometric lightcurve of Pic-du-Midi was obtained at the Palomar Transient Factory in California. Lightcurve analysis gave a rotation period of 2.812 hours with a brightness variation of 0.14 in magnitude (U=2 [6] fast rotators .
Diameter and albedo [ edit ]
According to the survey carried out by NASA's Wide-field Infrared Survey Explorer with its subsequent NEOWISE mission, Pic-du-Midi measures 7.894 kilometers in diameter, and its surface has an albedo of 0.059,[4] [5] Collaborative Asteroid Lightcurve Link assumes a standard albedo for carbonaceous asteroids of 0.057 and calculates a diameter of 6.64 kilometers based on an absolute magnitude of 12.62.[3]
This minor planet was named after the Pic du Midi Observatory located on the Pyrenees mountains in southern France. Founded by the Ramond Society in 1881, the observatory pioneered the study of the solar corona and cosmic rays and was one of the first to use high-resolution techniques.[2] Minor Planet Center on 9 March 2001 (M.P.C. 42368[8]
References [ edit ]
^ a b c Schmadel, Lutz D. (2007). "(20488) Pic-du-Midi". Dictionary of Minor Planet Names – (20488) Pic-du-Midi . Springer Berlin Heidelberg . p. 862. doi :10.1007/978-3-540-29925-7_9624 . ISBN 978-3-540-00238-3
^ a b c d e f "LCDB Data for (20488) Pic-du-Midi" . Asteroid Lightcurve Database (LCDB). Retrieved 3 March 2017 .
^ a b c d 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 .
^ a b c Masiero, Joseph R.; Mainzer, A. K.; Grav, T.; Bauer, J. M.; Cutri, R. M.; Dailey, J.; et al. (November 2011). "Main Belt Asteroids with WISE/NEOWISE. I. Preliminary Albedos and Diameters" . The Astrophysical Journal . 741 (2 ): 20. arXiv :1109.4096 Bibcode :2011ApJ...741...68M . doi :10.1088/0004-637X/741/2/68 . Retrieved 3 March 2017 .
^ a b c 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 3 March 2017 .
^ a b "20488 Pic-du-Midi (1999 OL)" . Minor Planet Center . Retrieved 3 March 2017 .
^ "MPC/MPO/MPS Archive" . Minor Planet Center . Retrieved 3 March 2017 .
External links [ edit ]
R e t r i e v e d f r o m " https://en.wikipedia.org/w/index.php?title=20488_Pic-du-Midi&oldid=1196950701 " 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 ) ● B a c k g r o u n d a s t e r o i d s ● D i s c o v e r i e s b y t h e P i s e s O b s e r v a t o r y ● N a m e d m i n o r p l a n e t 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 9 9 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 A u g u s t 2 0 1 8 ● 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 8 J a n u a r y 2 0 2 4 , a t 2 3 : 2 5 ( 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
