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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
956 Elisa (prov. designation :A921 PE or 1921 JW ) is a Flora asteroid from the inner regions of the asteroid belt , approximately 10.5 kilometers (6.5 miles) in diameter. It was discovered on 8 August 1921, by German astronomer Karl Reinmuth at the Heidelberg Observatory .[1] V-type asteroid has a rotation period of 16.5 hours. It was named after Elisa Reinmuth, mother of the discoverer.[4]
Orbit and classification [ edit ]
When applying the synthetic hierarchical clustering method (HCM) by Nesvorný , Elisa is a member of the Flora family (402 asteroid family and the largest family of stony asteroids in the main-belt.[6] [12] : 23 Milani and Knežević (AstDys), it is a background asteroid as this analysis does not recognize the Flora asteroid clan .[13]
Elisa orbits the Sun in the inner asteroid belt at a distance of 1.8–2.8 AU semi-major axis of 2.3 AU ). Its orbit has an eccentricity of 0.20 and an inclination of 6° with respect to the ecliptic .[5] observation arc begins at Heidelberg Observatory on 9 August 1921, the night after its official discovery observation.[1]
This minor planet was named after Elisa Reinmuth, mother of the discoverer Karl Reinmuth . The naming was mentioned in The Names of the Minor Planets by Paul Herget in 1955 (H 92 [4]
Physical characteristics [ edit ]
In both the Tholen- and SMASS-like taxonomy of the Small Solar System Objects Spectroscopic Survey (S3OS2), Elisa is a V-type asteroid .[6] [11] 4 Vesta .[14] [15]
Rotation period [ edit ]
In July 2008, a rotational lightcurve of Elisa was obtained from photometric observations by Matthieu Conjat at Nice Observatory in France. Lightcurve analysis gave a well-defined rotation period of ± 0.006± 0.02magnitude (U=3 [9] [10] Belgrade Observatory (057 Spitzer ± 0.0007± 0.001± 0.02± 0.02U=3/3– [8] [16]
Diameter and albedo [ edit ]
According to the survey carried out by the NEOWISE mission of NASA's Wide-field Infrared Survey Explorer (WISE) and the Spitzer Space Telescope , Elisa measures ± 0.208± 0.5albedo of ± 0.022± 0.022[7] [8] Collaborative Asteroid Lightcurve Link assumes a standard albedo for a Flora asteroid of 0.24 and calculates a diameter of 10.31 kilometers based on an absolute magnitude of 12.1.[9] ± 1.09 km ± 0.67 km ± 0.21± 0.071[6] [9]
References [ edit ]
^ (German Names)
^ Noah Webster (1884) A Practical Dictionary of the English Language
^ a b c Schmadel, Lutz D. (2007). "(956) Elisa". Dictionary of Minor Planet Names 84 doi :10.1007/978-3-540-29925-7_957 . ISBN 978-3-540-00238-3
^ a b c d "JPL Small-Body Database Browser: 956 Elisa (A921 PE)" (2020-01-05 last obs.). Jet Propulsion Laboratory . Retrieved 14 February 2020 .
^ a b c d "Asteroid 956 Elisa" . Small Bodies Data Ferret . Retrieved 14 February 2020 .
^ 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 c d Lim, Lucy F.; Emery, Joshua P.; Moskovitz, Nicholas A. (June 2011). "Mineralogy and thermal properties of V-type Asteroid 956 Elisa: Evidence for diogenitic material from the Spitzer IRS (5-35 μm) spectrum" (PDF) . Icarus . 213 (2 ): 510–523. Bibcode :2011Icar..213..510L . doi :10.1016/j.icarus.2010.12.006 .
^ a b c d "LCDB Data for (956) Elisa" . Asteroid Lightcurve Database (LCDB). Retrieved 14 February 2020 .
^ a b Behrend, Raoul. "Asteroids and comets rotation curves – (956) Elisa" . Geneva Observatory. Retrieved 14 February 2020 .
^ a b Lazzaro, D.; Angeli, C. A.; Carvano, J. M.; Mothé-Diniz, T.; Duffard, R.; Florczak, M. (November 2004). "S3OS2: the visible spectroscopic survey of 820 asteroids" (PDF) . Icarus . 172 (1 ): 179–220. Bibcode :2004Icar..172..179L . doi :10.1016/j.icarus.2004.06.006 . Retrieved 14 February 2020 .
^ 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 978-0-8165-3213-1
^ "Asteroid 956 Elisa – Proper Elements" . AstDyS-2, Asteroids – Dynamic Site. Retrieved 14 February 2020 .
^ M. Florczak; D. Lazarro & R. Duffard (2002). "Discovering New V-Type Asteroids in the Vicinity of 4 Vesta". Icarus . 159 (1 ): 178. Bibcode :2002Icar..159..178F . doi :10.1006/icar.2002.6913 .
^ V. Carruba; et al. (2005). "On the V-type asteroids outside the Vesta family". Astronomy & Astrophysics . 441 (2 ): 819–829. arXiv :astro-ph/0506656 Bibcode :2005A&A...441..819C . doi :10.1051/0004-6361:20053355 .
^ Benishek, Vladimir; Protitch-Benishek, Vojislava (April 2009). "CCD Photometry of Asteroids at the Belgrade Astronomical Observatory: 2008 January-September" (PDF) . Minor Planet Bulletin . 36 2 ): 35–37. Bibcode :2009MPBu...36...35B . ISSN 1052-8091 . Archived from the original (PDF) on 6 November 2020. Retrieved 14 February 2020 .
External links [ edit ]
R e t r i e v e d f r o m " https://en.wikipedia.org/w/index.php?title=956_Elisa&oldid=1190799585 " 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 ) ● F l o r a a s t e r o i d s ● D i s c o v e r i e s b y K a r l W i l h e l m R e i n m u t h ● 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 2 1 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 F e b r u a r y 2 0 2 0 ● P a g e s w i t h G e r m a n I P 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 9 D e c e m b e r 2 0 2 3 , a t 2 2 : 5 5 ( 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
