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(26308) 1998 SM165 trans-Neptunian object and binary system from the Kuiper belt in the outermost regions of the Solar System . It was discovered on 16 September 1998, by American astronomer Nichole Danzl at the Kitt Peak National Observatory in Arizona.[1] twotino and measures approximately 280 kilometers in diameter. Its minor-planet moon was discovered in 2001.[5]
Twotino
[ edit ] The orbit of 1998 SM165 compared to Pluto and Neptune
1998 SM165 has a semi-major axis (average distance from the Sun) near the edge of the classical belt . The Deep Ecliptic Survey (DES) list this trans-Neptunian object as a twotino that stays in a 1:2 orbital resonance with the planet Neptune (for every one orbit that a twotino makes, Neptune orbits twice).[3] [4]
Physical characteristics
[ edit ]
The observations with the infrared Spitzer Space Telescope combined with the orbits established using the Hubble Space Telescope allow the estimation of the density , assuming the components of equal albedo .
The resulting estimate of +0.29 3 [6] 47171 Lempo (0.3–0.8 g/cm3 [7] Hyperion (± 0.102 g/cm3 [8] porous composition dominated by ice.[6]
1998 SM165 is fairly red, with a color comparable to 79360 Sila–Nunam .
Satellite
[ edit ]
On 22 December 2001, a minor-planet moon , provisionally designated S/2001 (26308) 1 , was discovered by American astronomer Michael Brown and Chad Trujillo using the Hubble Space Telescope .[5] mi ) in diameter and orbits its primary at a distance of 11,310 ± 110 km (7,028 ± 68 mi ). Assuming a circular orbit, this takes ± 1 [5]
Numbering and naming
[ edit ]
This minor planet was numbered by the Minor Planet Center on 5 July 2001.[9] named .[1]
References
[ edit ]
^ a b c "JPL Small-Body Database Browser: 26308 (1998 SM165)" (2015-01-16 last obs.). Jet Propulsion Laboratory . Retrieved 11 October 2017 .
^ a b "MPEC 2009-J35 :Distant Minor Planets (2009 MAY 29.0 TT)" . Minor Planet Center. 8 May 2009. Retrieved 22 August 2016 .
^ a b Marc W. Buie . "Orbit Fit and Astrometric record for 26308" (2007/09/11 using 73 observations). SwRI (Space Science Department). Retrieved 12 May 2009 .
^ a b c d e f g "(26308) 1998 SM165 and S/2001 (26308) 1" . johnstonsarchive . 21 September 2014. Retrieved 11 October 2017 .
^ a b c d e f g Spencer, J.; Stansberry, J.; Grundy, W.; Noll, K. (September 2006). "A Low Density for Binary Kuiper Belt Object (26308) 1998 SM165". Bulletin of the American Astronomical Society . 38 Bibcode :2006DPS....38.3401S .
^ Stansberry, J.; Grundy, W.; Margot, J-L.; Cruikshank, D.; Emery, J.; Rieke, G.; Trilling, D. (May 2006). "The Albedo, Size, and Density of Binary Kuiper Belt Object (47171) 1999 TC36". The Astrophysical Journal . 643 (1 ): 556–566. arXiv :astro-ph/0602316 Bibcode :2006ApJ...643..556S . doi :10.1086/502674 . S2CID 18146599 .
^ Jacobson, R. A.; Antreasian, P. G.; Bordi, J. J.; Criddle, K. E.; Ionasescu, R.; Jones, J. B.; Mackenzie, R. A.; Meek, M. C.; Parcher, D.; Pelletier, F. J.; Owen, W. M. Jr.; Roth, D. C.; Roundhill, I. M.; Stauch, J. R. (December 2006). "The Gravity Field of the Saturnian System from Satellite Observations and Spacecraft Tracking Data" . The Astronomical Journal . 132 (6 ): 2520–2526. Bibcode :2006AJ....132.2520J . doi :10.1086/508812
^ "MPC/MPO/MPS Archive" . Minor Planet Center . Retrieved 24 February 2018 .
External links
[ edit ]
R e t r i e v e d f r o m " https://en.wikipedia.org/w/index.php?title=(26308)_1998_SM165&oldid=1191608560 " 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 ) ● T w o t i n o s ● D i s c o v e r i e s b y N i c h o l e M . D a n z l ● B i n a r y t r a n s - N e p t u n i a n o b j e c 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 8 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 ● 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 2 4 D e c e m b e r 2 0 2 3 , a t 1 5 : 2 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
