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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
1525 Savonlinna , provisional designation 1939 SC , is an asteroid from the central region of the asteroid belt , approximately 12 kilometers in diameter. It was discovered on 18 September 1939, by Finnish astronomer Yrjö Väisälä at the Turku Observatory in southwestern Finland.[11] Savonlinna .[2]
Orbit and classification
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Savonlinna orbits the Sun in the central main-belt at a distance of 2.0–3.4 AU eccentricity of 0.26 and an inclination of 6° with respect to the ecliptic .[1] 1930 SE at Simeiz Observatory , extending the body's arc length by 9 years prior to its official discovery observation at Turku.[11]
Physical characteristics
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Rotational period
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In October and December 2010, two rotational lightcurves of Savonlinna were obtained by Gordon Gartrelle at UND and the Palomar Transient Factory in California. Lightcurve analysis gave a divergent rotation period of 14.634 and 22.8406 hours with a brightness variation of 0.52 and 0.50 magnitude , respectively (U=2/2 [8] [9]
Diameter and albedo
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According to the surveys carried out by the Infrared Astronomical Satellite IRAS , and NASA's Wide-field Infrared Survey Explorer with its subsequent NEOWISE mission, Savonlinna measures between 11.73 and 12.23 kilometers in diameter and its surface has an albedo between 0.045 and 0.130.[4] [5] [6] [7] Collaborative Asteroid Lightcurve Link derives an albedo of 0.084 and a diameter of 12.06 kilometers based on an absolute magnitude of 12.9. It also classifies the body as a S-type asteroid , despite its derived albedo.[3]
Naming
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This minor planet was named for the eastern Finnish town Savonlinna , located in the heart of the Saimaa lake region.[2] naming citation was published by the Minor Planet Center on 20 February 1976 (M.P.C. 3929[12]
References
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^ a b c d e f "LCDB Data for (1525) Savonlinna" . Asteroid Lightcurve Database (LCDB). Retrieved 31 December 2016 .
^ a b c d Nugent, C. R.; Mainzer, A.; Masiero, J.; Bauer, J.; Cutri, R. M.; Grav, T.; et al. (December 2015). "NEOWISE Reactivation Mission Year One: Preliminary Asteroid Diameters and Albedos" . The Astrophysical Journal . 814 (2 ): 13. arXiv :1509.02522 Bibcode :2015ApJ...814..117N . doi :10.1088/0004-637X/814/2/117 . S2CID 9341381 . Retrieved 31 December 2016 .
^ a b c Tedesco, E. F.; Noah, P. V.; Noah, M.; Price, S. D. (October 2004). "IRAS Minor Planet Survey V6.0" . NASA Planetary Data System . 12 Bibcode :2004PDSS...12.....T . Retrieved 22 October 2019 .
^ a b c d Nugent, C. R.; Mainzer, A.; Bauer, J.; Cutri, R. M.; Kramer, E. A.; Grav, T.; et al. (September 2016). "NEOWISE Reactivation Mission Year Two: Asteroid Diameters and Albedos" . The Astronomical Journal . 152 (3 ): 12. arXiv :1606.08923 Bibcode :2016AJ....152...63N . doi :10.3847/0004-6256/152/3/63
^ a b c d Masiero, Joseph R.; Mainzer, A. K.; Grav, T.; Bauer, J. M.; Cutri, R. M.; Nugent, C.; et al. (November 2012). "Preliminary Analysis of WISE/NEOWISE 3-Band Cryogenic and Post-cryogenic Observations of Main Belt Asteroids" . The Astrophysical Journal Letters . 759 (1 ): 5. arXiv :1209.5794 Bibcode :2012ApJ...759L...8M . doi :10.1088/2041-8205/759/1/L8 . S2CID 46350317 . Retrieved 31 December 2016 .
^ a b Gartrelle, Gordon M. (April 2012). "Lightcurve Results for Eleven Asteroids" . The Minor Planet Bulletin . 39 2 ): 40%–46. Bibcode :2012MPBu...39...40G . ISSN 1052-8091 . Retrieved 31 December 2016 .
^ a b c Waszczak, Adam; Chang, Chan-Kao; Ofek, Eran O.; Laher, Russ; Masci, Frank; Levitan, David; et al. (September 2015). "Asteroid Light Curves from the Palomar Transient Factory Survey: Rotation Periods and Phase Functions from Sparse Photometry" . The Astronomical Journal . 150 (3 ): 35. arXiv :1504.04041 Bibcode :2015AJ....150...75W . doi :10.1088/0004-6256/150/3/75 . S2CID 8342929 . Retrieved 31 December 2016 .
^ Veres, Peter; Jedicke, Robert; Fitzsimmons, Alan; Denneau, Larry; Granvik, Mikael; Bolin, Bryce; et al. (November 2015). "Absolute magnitudes and slope parameters for 250,000 asteroids observed by Pan-STARRS PS1 - Preliminary results" . Icarus . 261 : 34–47. arXiv :1506.00762 Bibcode :2015Icar..261...34V . doi :10.1016/j.icarus.2015.08.007 . S2CID 53493339 . Retrieved 31 December 2016 .
^ a b "1525 Savonlinna (1939 SC)" . Minor Planet Center . Retrieved 31 December 2016 .
^ Schmadel, Lutz D. (2009). "Appendix – Publication Dates of the MPCs". Dictionary of Minor Planet Names – Addendum to Fifth Edition (2006–2008) . Springer Berlin Heidelberg. p. 221. Bibcode :2009dmpn.book.....S . doi :10.1007/978-3-642-01965-4 . ISBN 978-3-642-01964-7
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=1525_Savonlinna&oldid=1191783906 " 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 ) ● B a c k g r o u n d a s t e r o i d s ● D i s c o v e r i e s b y Y r j ö V ä i s ä l ä ● 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 3 9 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 ● 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
● T h i s p a g e w a s l a s t e d i t e d o n 2 5 D e c e m b e r 2 0 2 3 , a t 1 9 : 5 4 ( 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
