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7346 Boulanger , provisional designation 1993 DQ2 , is a Koronian asteroid from the outer regions of the asteroid belt , approximately 7.4 kilometers (4.6 miles) in diameter. It was discovered on 20 February 1993, by Belgian astronomer Eric Elst at the CERGA Observatory in Caussols, southeastern France. It was named after French Enlightenment philosopher Nicolas Boulanger .[1]
Orbit and classification
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Boulanger is a member of the Koronis family (605 [3] asteroid family with nearly co-planar ecliptical orbits.[6] outer main-belt at a distance of 2.6–3.1 AU semi-major axis of 2.88 AU ). Its orbit has an eccentricity of 0.08 and an inclination of 3° with respect to the ecliptic .[2]
The body's observation arc begins with a precovery taken at Palomar Observatory in April 1955, nearly 38 years prior to its official discovery observation at Caussols.[1]
Physical characteristics
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In the SDSS -based taxonomy, Boulanger is a common, stony S-type asteroid ,[5] spectral type for Koronian asteroids.[6] : 23 absolute magnitude of 12.8.[1] [2] lightcurve of Boulanger has been obtained from photometric observations. The body's rotation period , pole and shape remain unknown.[2]
Diameter and albedo
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According to the survey carried out by the NEOWISE mission of NASA's Wide-field Infrared Survey Explorer , Boulanger measures 7.378 kilometers in diameter and its surface has an albedo of 0.270.[4]
Naming
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This minor planet was named after Enlightenment philosopher and geologist Nicolas Antoine Boulanger (1722–1759).[1] Minor Planet Center on 24 June 2002 (M.P.C. 46008[7]
References
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^ a b c d e f "JPL Small-Body Database Browser: 7346 Boulanger (1993 DQ2)" (2018-04-21 last obs.). Jet Propulsion Laboratory . Retrieved 27 May 2018 .
^ a b "Asteroid 7346 Boulanger" . Small Bodies Data Ferret . Retrieved 27 May 2018 .
^ 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 .
^ a b Carvano, J. M.; Hasselmann, P. H.; Lazzaro, D.; Mothé-Diniz, T. (February 2010). "SDSS-based taxonomic classification and orbital distribution of main belt asteroids" . Astronomy and Astrophysics . 510 : 12. Bibcode :2010A&A...510A..43C . doi :10.1051/0004-6361/200913322 . Retrieved 30 October 2019 . (PDS data set)
^ a b Nesvorný, D.; Broz, M.; Carruba, V. (December 2014). "Identification and Dynamical Properties of Asteroid Families". Asteroids IV . pp. 297–321. arXiv :1502.01628 Bibcode :2015aste.book..297N . doi :10.2458/azu_uapress_9780816532131-ch016 . ISBN 9780816532131
^ "MPC/MPO/MPS Archive" . Minor Planet Center . Retrieved 27 May 2018 .
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=7346_Boulanger&oldid=1191638970 " 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 ) ● K o r o n i s a s t e r o i d s ● D i s c o v e r i e s b y E r i c W a l t e r E l s t ● 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 3 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 M a y 2 0 1 8 ● 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 9 : 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
