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730 Athanasia (prov. designation :A912 GG or 1912 OK ) is a background asteroid from the inner regions of the asteroid belt , approximately 4.5 kilometers (2.8 miles) in diameter. It was discovered by Austrian astronomer Johann Palisa at the Vienna Observatory on 10 April 1912.[1] S-type asteroid has a rotation period of 5.7 hours and is likely very elongated in shape. It was named Athanasia , the Greek word for "immortality ".[3]
Orbit and classification [ edit ]
Located in the region of the Flora family (402 [10] asteroid family and the largest family of stony asteroids in the main-belt, Athanasia is a non-family asteroid of the main belt's background population when applying the hierarchical clustering method to its proper orbital elements .[5] [6] [7] inner asteroid belt at a distance of 1.8–2.6 AU semi-major axis of 2.24 AU ). Its orbit has an eccentricity of 0.18 and an inclination of 4° with respect to the ecliptic .[4] observation arc begins at Vienna Observatory on 15 April 1912, or five nights after its official discovery observation.[1]
This minor planet was named by friends of the discoverer after the Greek word for immortality , "athanasia". Any reference to a person or occurrence is unknown. The naming was mentioned in The Names of the Minor Planets by Paul Herget in 1955 (H 73 [3]
Physical characteristics [ edit ]
Athanasia is an assumed, stony S-type asteroid .[10]
Rotation period [ edit ]
In February 2016, a rotational lightcurve of Athanasia was obtained from photometric observations by Frederick Pilcher at the Organ Mesa Observatory (G50 rotation period of ± 0.0001± 0.04magnitude , indicative of a highly elongated shape (U=3 [9] [a] or U=2+ [11] [b]
Diameter and albedo [ edit ]
According to the survey carried out by the NEOWISE mission of NASA's Wide-field Infrared Survey Explorer , Athanasia measures (± 0.734albedo of (± 0.123[8] Collaborative Asteroid Lightcurve Link assumes a standard albedo for a Florian asteroid of 0.24 and calculates a diameter of 4.94 kilometers based on an absolute magnitude of 13.7.[10]
^ a b Lightcurve-plot of (730) Athanasia , by Frederick Pilcher at the Organ Mesa Observatory (2016). Rotation period of LCDB and ALSC websites.
^ Lightcurve-plot of (730) Athanasia , by Frederick Pilcher at the Organ Mesa Observatory (2013). Rotation period of LCDB and ALSC websites.
References [ edit ]
^ 'Athanasius' in Noah Webster (1884) A Practical Dictionary of the English Language
^ a b c Schmadel, Lutz D. (2007). "(730) Athanasia". Dictionary of Minor Planet Names . Springer Berlin Heidelberg. p. 70. doi :10.1007/978-3-540-29925-7_731 . ISBN 978-3-540-00238-3
^ a b c d e f "JPL Small-Body Database Browser: 730 Athanasia (A912 GG)" (2020-04-28 last obs.). Jet Propulsion Laboratory . Retrieved 10 June 2020 .
^ a b "Asteroid 730 Athanasia – Proper Elements" . AstDyS-2, Asteroids – Dynamic Site. Retrieved 10 June 2020 .
^ a b "Asteroid 730 Athanasia" . Small Bodies Data Ferret . Retrieved 10 June 2020 .
^ a b Zappalà, V.; Bendjoya, Ph.; Cellino, A.; Farinella, P.; Froeschle, C. (1997). "Asteroid Dynamical Families" . NASA Planetary Data System : EAR-A-5-DDR-FAMILY-V4.1. Retrieved 10 June 2020 . PDS main page )
^ 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 Pilcher, Frederick (July 2016). "Rotation Period Determinations for 123 Brunhild, 314 Rosalia 346 Hermentaria, 633 Zelima, and 730 Athanasia" (PDF) . Minor Planet Bulletin . 43 3 ): 222–224. Bibcode :2016MPBu...43..222P . ISSN 1052-8091 . Archived from the original (PDF) on 27 July 2021. Retrieved 10 June 2020 .
^ a b c d "LCDB Data for (730) Athanasia" . Asteroid Lightcurve Database (LCDB). Retrieved 10 June 2020 .
^ Pilcher, Frederick (October 2013). "Rotation Period Determination for 730 Athanasia" (PDF) . Minor Planet Bulletin . 40 4 ): 194–195. Bibcode :2013MPBu...40..194P . ISSN 1052-8091 . Archived from the original (PDF) on 24 February 2020. Retrieved 10 June 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=730_Athanasia&oldid=1191340960 " 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 J o h a n n P a l i s a ● 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 1 2 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 J u n e 2 0 2 0 ● 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 2 D e c e m b e r 2 0 2 3 , a t 2 3 : 1 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
