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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
699 Hela is a Mars crossing asteroid . It was discovered on 5 June 1910 at Heidelberg by German astronomer Joseph Helffrich , and may have been named after Hel , the Norse ruler of the underworld.[4] AU period of 4.22 years and an eccentricity of 0.41. The orbital plane is inclined at an angle of 15.3° to the plane of the ecliptic .[2]
With an absolute magnitude of 11.7,[2] [3] [5] [2] SMASS taxonomy . Photometry data used to produce light curves provide a rotation period of 24 ± 0.00006 h [6]
References
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^ a b "Absolute Magnitude (H )" . NASA/JPL. Archived from the original on 2 March 2001. Retrieved 24 June 2014 .
^ Schmadel, Lutz (2003), Dictionary of minor planet names ISBN 9783540002383
^ Angeli, C. A.; Lazzaro, D. (August 2002), "Spectral properties of Mars-crossers and near-Earth objects. Results of the S3 OS 2 Astronomy and Astrophysics , 391 : 757–765, Bibcode :2002A&A...391..757A , doi :10.1051/0004-6361:20020834
^ Alonso, E. Díez; et al. (April 2021), "Asteroids 4092 Tyr (Follow Up, Analysis, Preliminary Results) and 699 Hela (Spin-Shape Model)", Bulletin of the Minor Planets Section of the Association of Lunar and Planetary Observers , 48 2 ): 136–139, Bibcode :2021MPBu...48..136A .
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=699_Hela&oldid=1195667508 " 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 ) ● M a r s - c r o s s i n g a s t e r o i d s ● D i s c o v e r i e s b y J o s e p h H e l f f r i c h ● 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 ( T h o l e n ) ● S q - t y p e a s t e r o i d s ( S M A S 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 0 ● M a r s - c r o s s i n g a s t e r o i d s t u b s 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 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 ● A l l s t u b a r t i c l e 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 : 3 9 ( 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
