Carbonaceous background asteroid
1041 Asta , provisional designation 1925 FA , is a carbonaceous background asteroid from the outer regions of the asteroid belt , approximately 57 kilometers in diameter. It was discovered on 22 March 1925, by German astronomer Karl Reinmuth at the Heidelberg Observatory in southwest Germany.[ 14] Asta Nielsen .
Orbit and classification
Asta is a non-family asteroid from the main belt's background population .[ 4] outer main-belt at a distance of 2.6–3.5 AU once every 5 years and 5 months (1,968 days; semi-major axis of 3.07 AU). Its orbit has an eccentricity of 0.14 and an inclination of 14° with respect to the ecliptic .[ 1] A906 VA at Heidelberg in November 1906, where the body's observation arc begins one month later in December 1906.[ 14]
Physical characteristics
In the SMASS classification , Asta is a carbonaceous C-type asteroid .[ 1] Pan-STARRS photometric survey also characterizes the asteroid as a C-type.[ 13]
Rotation period
Photometric observations of Asta collected at the Australian Oakley Southern Sky Observatory and the U.S. Oakley Observatory in October 2008 show a rotation period of 7.99 hours with a brightness variation of 0.22 magnitude (U=2+ [ 12] lightcurve with a period of 7.554 hours and an amplitude of 0.14 magnitude was obtained by French amateur astronomer Pierre Antonini , who also mentioned the possibility of an alternative period solution (U=3- [ 11]
Diameter and albedo
According to the surveys carried out by the Japanese Akari satellite and the NEOWISE mission of NASA's Wide-field Infrared Survey Explorer , Asta measures between 43.46 and 61.852 kilometers in diameter and its surface has an albedo between 0.0421 and 0.08.[ 5] [ 6] [ 7] [ 8] [ 9] [ 10]
The Collaborative Asteroid Lightcurve Link derives an albedo of 0.0493 and a diameter of 57.16 kilometers based on an absolute magnitude of 10.1.[ 3]
Naming
This minor planet was likely named after Danish actress Asta Nielsen (1881–1972), according to research by the author of the Dictionary of Minor Planet Names , Lutz Schmadel (LDS). The naming was proposed by ARI-astronomer Gustav Stracke .[ 2]
References
^ a b c d e f "JPL Small-Body Database Browser: 1041 Asta (1925 FA)" (2017-07-05 last obs.). Jet Propulsion Laboratory . Retrieved 10 January 2018 .^ a b Schmadel, Lutz D. (2007). "(1041) Asta". Dictionary of Minor Planet Names – (1041) Asta . Springer Berlin Heidelberg . p. 89. doi :10.1007/978-3-540-29925-7_1042 . ISBN 978-3-540-00238-3 ^ a b c d e f "LCDB Data for (1041) Asta" . Asteroid Lightcurve Database (LCDB). Retrieved 10 January 2018 .^ a b "Asteroid 1041 Asta – Nesvorny HCM Asteroid Families V3.0" . Small Bodies Data Ferret . Retrieved 24 October 2019 .^ 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 10 January 2018 . ^ 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 10 January 2018 . ^ a b c d Usui, Fumihiko; Kuroda, Daisuke; Müller, Thomas G.; Hasegawa, Sunao; Ishiguro, Masateru; Ootsubo, Takafumi; et al. (October 2011). "Asteroid Catalog Using Akari: AKARI/IRC Mid-Infrared Asteroid Survey" . Publications of the Astronomical Society of Japan . 63 (5): 1117– 1138. Bibcode :2011PASJ...63.1117U . doi :10.1093/pasj/63.5.1117 online , AcuA catalog p. 153 )^ a b c Masiero, Joseph R.; Grav, T.; Mainzer, A. K.; Nugent, C. R.; Bauer, J. M.; Stevenson, R.; et al. (August 2014). "Main-belt Asteroids with WISE/NEOWISE: Near-infrared Albedos". The Astrophysical Journal . 791 (2): 11. arXiv :1406.6645 Bibcode :2014ApJ...791..121M . doi :10.1088/0004-637X/791/2/121 . S2CID 119293330 . ^ a b c d Mainzer, A.; Grav, T.; Masiero, J.; Hand, E.; Bauer, J.; Tholen, D.; et al. (November 2011). "NEOWISE Studies of Spectrophotometrically Classified Asteroids: Preliminary Results". The Astrophysical Journal . 741 (2): 25. arXiv :1109.6407 Bibcode :2011ApJ...741...90M . doi :10.1088/0004-637X/741/2/90 . S2CID 35447010 . ^ a b Behrend, Raoul. "Asteroids and comets rotation curves – (1041) Asta" . Geneva Observatory. Retrieved 10 January 2018 . ^ a b Carbo, Landy; Kragh, Katherine; Krotz, Jonathan; Meiers, Andrew; Shaffer, Nelson; Torno, Steven; et al. (July 2009). "Asteroid Lightcurve Analysis at the Oakley Southern Sky Observatory and Oakley Observatory: 2008 September and October" . The Minor Planet Bulletin . 36 (3): 91– 94. Bibcode :2009MPBu...36...91C . ISSN 1052-8091 . Retrieved 10 January 2018 . ^ a b c 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 10 January 2018 . ^ a b "1041 Asta (1925 FA)" . Minor Planet Center . Retrieved 10 January 2018 .
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