1154 Astronomia
1154 Astronomia , provisional designation 1927 CB , is a carbonaceous background asteroid from the outer regions of the asteroid belt , approximately 60 kilometers in diameter. It was discovered by German astronomer Karl Reinmuth at the Heidelberg-Königstuhl State Observatory on 8 February 1927.[ 14] astronomy .
Orbit and classification
Astronomia is a background asteroid , that is, not a member of any known asteroid family .[ 4] outer main-belt at a distance of 3.2–3.6 AU once every 6 years and 3 months (2,281 days). Its orbit has an eccentricity of 0.07 and an inclination of 5° with respect to the ecliptic .[ 1]
The asteroid was first identified as A911 RA at Heidelberg in September 1911. The body's observation arc begins the night after its official discovery observation at Heidelberg.[ 14]
Physical characteristics
In the Tholen classification , Astronomia has an ambiguous spectral type , closest to a carbonaceous F-type and somewhat similar to that of an X-type asteroid . Its spectrum has also been flagged as unusual and of poor quality (FXU:).[ 1]
Rotation period
In May 2016, the first rotational lightcurve of Astronomia was obtained from photometric observations. Lightcurve analysis gave a rotation period of 18.1154 hours with a brightness variation of 0.39 magnitude (U=3- [ a]
Diameter and albedo
According to the surveys carried out by the Infrared Astronomical Satellite IRAS , the Japanese Akari satellite and the NEOWISE mission of NASA's Wide-field Infrared Survey Explorer , Astronomia measures between 55.4 and 64.20 kilometers in diameter and its surface has an albedo between 0.028 and 0.04.[ 5] [ 6] [ 7] [ 8] [ 9] [ 10] [ 12]
The Collaborative Asteroid Lightcurve Link adopts the results obtained by IRAS, that is an albedo of 0.0296 and a diameter of 61.08 kilometers based on an absolute magnitude of 10.51.[ 3] [ 11]
Naming
This minor planet was named after the natural science of astronomy , a study of celestial objects , observations and phenomena in the night sky . The official naming citation was mentioned in The Names of the Minor Planets Paul Herget in 1955 (H 108 [ 2]
Notes
References
^ a b c d e f g h i "JPL Small-Body Database Browser: 1154 Astronomia (1927 CB)" (2017-07-04 last obs.). Jet Propulsion Laboratory . Archived from the original on 18 September 2020. Retrieved 8 September 2017 .^ a b Schmadel, Lutz D. (2007). "(1154) Astronomia". Dictionary of Minor Planet Names – (1154) Astronomia . Springer Berlin Heidelberg . p. 97. doi :10.1007/978-3-540-29925-7_1155 . ISBN 978-3-540-00238-3 ^ a b c d e f "LCDB Data for (1154) Astronomia" . Asteroid Lightcurve Database (LCDB). Retrieved 8 September 2017 .^ a b "Asteroid 1154 Astronomia – Proper Elements" . AstDyS-2, Asteroids – Dynamic Site. Retrieved 28 October 2019 .^ a b c d Alí-Lagoa, V.; Licandro, J.; Gil-Hutton, R.; Cañ; ada-Assandri, M.; Delbo', M.; et al. (June 2016). "Differences between the Pallas collisional family and similarly sized B-type asteroids" . Astronomy and Astrophysics . 591 : 11. Bibcode :2016A&A...591A..14A . doi :10.1051/0004-6361/201527660 hdl :11336/63614 ^ 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 . Retrieved 8 September 2017 . ^ 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 c d Alí-Lagoa, V.; de León, J.; Licandro, J.; Delbó, M.; Campins, H.; Pinilla-Alonso, N.; et al. (June 2013). "Physical properties of B-type asteroids from WISE data" . Astronomy and Astrophysics . 554 : 16. arXiv :1303.5487 Bibcode :2013A&A...554A..71A . doi :10.1051/0004-6361/201220680 . S2CID 119214002 . Retrieved 8 September 2017 . ^ 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 8 September 2017 . ^ 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 Tedesco, E. F.; Noah, P. V.; Noah, M.; Price, S. D. (October 2004). "IRAS Minor Planet Survey V6.0" . NASA Planetary Data System . 12 : IRAS-A-FPA-3-RDR-IMPS-V6.0. Bibcode :2004PDSS...12.....T . Retrieved 22 October 2019 . ^ 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 )^ 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 8 September 2017 . ^ a b "1154 Astronomia (1927 CB)" . Minor Planet Center . Retrieved 8 September 2017 .
External links
