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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 R e f e r e n c e s
2 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
( 3 0 8 2 4 2 ) 2 0 0 5 G O 21
5 l a n g u a g e s
● ا ل ع ر ب ي ة ● F r a n ç a i s ● B a h a s a I n d o n e s i a ● M i n a n g k a b a u ● Р у с с к и й
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
(308242) 2005 GO21 Aten near-Earth asteroid and potentially hazardous object .[2] uncertainty parameter of 0.[2] Siding Spring Survey at an apparent magnitude of 18.1 using the 0.5-metre (20 in ) Uppsala Southern Schmidt Telescope .[1]
Based on an absolute magnitude of 16.4,[2] [3] (308242) 2005 GO21 is the largest potentially hazardous asteroid (PHA) discovered in 2005.[4] AU km mi [5] radar using Goldstone and Arecibo .[3]
References [ edit ]
^ a b c d Dr. Lance A. M. Benner (18 June 2012). "(308242) 2005 GO21 Goldstone Radar Observations Planning" . NASA/JPL Asteroid Radar Research. Retrieved 18 June 2012 .
^ "JPL Small-Body Database Search Engine: PHAs and H < 17 (mag)" . JPL Solar System Dynamics. Retrieved 20 November 2011 .
^ "JPL Close-Approach Data: 308242 (2005 GO21)" (last observation: 2012-06-17; arc : 7.21 years). Retrieved 18 June 2012 .
External links [ edit ]
R e t r i e v e d f r o m " https://en.wikipedia.org/w/index.php?title=(308242)_2005_GO21&oldid=1195659016 " 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 ) ● A t e n a s t e r o i d s ● D i s c o v e r i e s b y S S S ● P o t e n t i a l l y h a z a r d o u s a s t e r o i d s ● R a d a r - i m a g e d a s t e r o i d s ● N e a r - E a r t h o b j e c t s i n 2 0 1 2 ● 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 2 0 0 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 S e p t e m b e r 2 0 2 0 ● J P L S m a l l - B o d y D a t a b a s e I D d i f f e r e n t f r o m W i k i d a t a ● 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 1 9 : 5 6 ( 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
