J u m p t o c o n t e n t
M a i n m e n u
M a i n m e n u
N a v i g a t i o n
● 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 C l a s s i f i c a t i o n a n d o r b i t
T o g g l e C l a s s i f i c a t i o n a n d o r b i t s u b s e c t i o n
1 . 1 R e t r o g r a d e o r b i t
2 N a m i n g
3 P h y s i c a l c h a r a c t e r i s t i c s
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
2 0 4 6 1 D i o r e t s a
2 1 l a n g u a g e s
● D e u t s c h ● Ε λ λ η ν ι κ ά ● E s p e r a n t o ● ف ا ر س ی ● F r a n ç a i s ● I t a l i a n o ● M a g y a r ● م ص ر ى ● N e d e r l a n d s ● 日 本 語 ● Н о х ч и й н ● 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 u o m i ● S v e n s k a ● Т а т а р ч а / t a t a r ç a ● У к р а ї н с ь к а ● T i ế n g V i ệ t ● 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
I n o t h e r p r o j e c t s
● W i k i m e d i a C o m m o n s
A p p e a r a n c e
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
20461 Dioretsa is a centaur and damocloid on a retrograde , cometary -like orbit from the outer Solar System . It was discovered on 8 June 1999, by members of the LINEAR team at the Lincoln Laboratory Experimental Test Site near Socorro, New Mexico, United States.[1] unusual object measures approximately 14 kilometers (8.7 miles) in diameter.[4] [6] Dioretsa , the word "asteroid" spelled backwards.[1]
Classification and orbit [ edit ]
Dioretsa is a member of the damocloids ,[4] retrograde orbit and a negative T Jupiter centaur , as its orbit has a semi-major axis in between that of Jupiter (5.5 AU Neptune (30.1 AU ).[3] Minor Planet Center lists it as a critical object and (other) unusual minor planet due to an orbital eccentricity of more than 0.5.[5]
It orbits the Sun at a distance of 2.4–45.4 AU once every 116 years and 10 months (42,686 days; semi-major axis of 23.9 AU ). Its orbit has an eccentricity of 0.90 and an inclination of 160° with respect to the ecliptic .[3] observation arc begins 12 months prior to its official discovery observation, with a precovery taken by Spacewatch at Steward Observatory in June 1998.[1] [update] uncertainty of 2.[3]
Retrograde orbit [ edit ]
An inclination of greater than 90° means that a body moves in a retrograde orbit . Dioretsa's orbit is otherwise similar to that of a comet . This has led to speculation that Dioretsa was originally an object from the Oort cloud .[citation needed
The minor planet's name "Dioretsa" is the word "asteroid " spelled backwards, and is the first numbered of currently 136 known (see Data Base Search of the Minor Planet Center) minor planets with a retrograde motion in the Solar System .[2] Minor Planet Center on 1 May 2003 (M.P.C. 48396[7]
Physical characteristics [ edit ]
According to observations made with the 10-meter Keck Telescope , Dioretsa measures 14 kilometers in diameter and its surface has a low albedo of 0.03.[6] absolute magnitude of 13.8.[3] spectral type as well as its rotation period and shape remain unknown.[3] [8]
References [ edit ]
^ a b Schmadel, Lutz D. (2006). "(20461) Dioretsa [24.4, 0.90, 160.2]". Dictionary of Minor Planet Names – (20461) Dioretsa, Addendum to Fifth Edition: 2003–2005 . Springer Berlin Heidelberg . p. 152. doi :10.1007/978-3-540-34361-5_1728 . ISBN 978-3-540-34360-8
^ a b c d e f g h "JPL Small-Body Database Browser: 20461 Dioretsa (1999 LD31)" (2000-12-29 last obs.). Jet Propulsion Laboratory . Retrieved 20 November 2018 .
^ a b c d e Johnston, Wm. Robert (7 October 2018). "List of Known Trans-Neptunian Objects" . Johnston's Archive . Retrieved 20 January 2018 .
^ a b "List Of Other Unusual Objects" . Minor Planet Center . 14 November 2018. Retrieved 20 November 2018 .
^ a b c d Harris, Alan W.; Delbó, Marco; Binzel, Richard P.; Davies, John K.; Roberts, Julie; Tholen, David J.; et al. (October 2001). "Visible to Thermal-Infrared Spectrophotometry of a Possible Inactive Cometary Nucleus" . Icarus . 153 (2 ): 332–337. Bibcode :2001Icar..153..332H . doi :10.1006/icar.2001.6687 . Retrieved 4 April 2016 .
^ "MPC/MPO/MPS Archive" . Minor Planet Center . Retrieved 20 November 2018 .
^ "LCDB Data for (20461) Dioretsa" . Asteroid Lightcurve Database (LCDB). Retrieved 27 June 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=20461_Dioretsa&oldid=1218342330 " 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 ) ● C e n t a u r s ( s m a l l S o l a r S y s t e m b o d i e s ) ● D a m o c l o i d s ● U n u s u a l m i n o r p l a n e t s ● D i s c o v e r i e s b y L I N E A R ● 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 ● M i n o r p l a n e t s w i t h a r e t r o g r a d e o r b i t H i d d e n c a t e g o r i e 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 ● U s e d m y d a t e s f r o m J u n e 2 0 1 4 ● A r t i c l e s c o n t a i n i n g p o t e n t i a l l y d a t e d s t a t e m e n t s f r o m 2 0 2 1 ● A l l a r t i c l e s c o n t a i n i n g p o t e n t i a l l y d a t e d s t a t e m e n t s ● 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 J u n e 2 0 1 7 ● 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 1 A p r i l 2 0 2 4 , a t 0 4 : 1 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
(astrological)
