Astronomy:1071 Brita

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1071 Brita
Discovery[1]
Discovered byV. Albitzkij
Discovery siteSimeiz Obs.
Discovery date3 March 1924
Designations
(1071) Brita
Named afterGreat Britain[2]
(part of British Isles)
1924 RE · 1927 YB
1947 BE · 1948 HB
1948 JG · 1952 FJ
A910 EB · A917 SP
Minor planet categorymain-belt · (middle)
background[3]
Orbital characteristics[1]
Epoch 4 September 2017 (JD 2458000.5)
Uncertainty parameter 0
Observation arc107.06 yr (39,102 days)
|{{{apsis}}}|helion}}3.1065 AU
|{{{apsis}}}|helion}}2.4954 AU
2.8009 AU
Eccentricity0.1091
Orbital period4.69 yr (1,712 days)
Mean anomaly60.276°
Mean motion0° 12m 37.08s / day
Inclination5.3715°
Longitude of ascending node52.571°
27.137°
Physical characteristics
Dimensions39.45±8.81 km[4]
40.266±12.91 km[5]
50.14 km (derived)[6]
50.29±1.4 km[7]
60.862±0.536 km[8]
62.53±0.65 km[9]
64.23±19.39 km[10]
Rotation period5.8 h (poor)[11]
5.805±0.002 h[12]
5.8158±0.0003 h[12]
5.8169±0.0003 h[13]
Geometric albedo0.03±0.02[10]
0.036±0.005[8]
0.042±0.001[9]
0.0486 (derived)[6]
0.0524±0.0488[5]
0.0637±0.004[7]
0.07±0.03[4]
SMASS = Xk[1] · X[6]
Absolute magnitude (H)10.10[7][9] · 10.30[4][8] · 10.40[1][5][6] · 10.54±0.25[14] · 10.56[10]


1071 Brita, provisional designation 1924 RE, is a dark asteroid from the background population of the intermediate asteroid belt, approximately 50 kilometers in diameter. It was discovered on 3 March 1924, by Soviet astronomer Vladimir Albitsky at the Simeiz Observatory on the Crimean peninsula.[15] The asteroid was named after the island of Great Britain.[2]

Orbit and classification

Brita is a non-family asteroid from the main belt's background population.[3] It orbits the Sun on the outer rim of the central asteroid belt at a distance of 2.5–3.1 AU once every 4 years and 8 months (1,712 days; semi-major axis of 2.80 AU). Its orbit has an eccentricity of 0.11 and an inclination of 5° with respect to the ecliptic.[1]

The asteroid was first identified as A910 EB at Heidelberg Observatory in March 1910. The body's observation arc begins at Lowell Observatory in October 1931, more than 7 years after its official discovery observation Simeiz.[15]

Physical characteristics

In the SMASS classification, Brita is an Xk-subtype that transitions from the X-type to the rare K-type asteroids.[1]

Rotation period

In 2001, a first, fragmentary lightcurve of Brita was published by a group of Brazilian and Argentine astronomers. Lightcurve analysis gave a rotation period of 5.8 hours with a brightness variation of 0.38 magnitude ({{{1}}}).[11] Between 2008 and 2016, photometric observations gave three well-defined periods of 5.805, 5.8158 and 5.8169 hours and an amplitude of 0.19, 0.23 and 0.20 magnitude, respectively ({{{1}}}).[12][13]

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, Brita measures between 39.45 and 64.23 kilometers in diameter and its surface has an albedo between 0.03 and 0.07.[4][5][7][8][9][10]

The Collaborative Asteroid Lightcurve Link derives an albedo of 0.0486 and a diameter of 50.14 kilometers based on an absolute magnitude of 10.4.[6]

Naming

This minor planet was named after the island of Great Britain, where the discovering observatory's 1-meter telescope was built. The author of the Dictionary of Minor Planet Names, Lutz Schmadel, learned about the naming circumstances from Crimean astronomers N. Solovaya and N. S. Chernykh (see 2325 Chernykh).[2]

References

  1. ↑ 1.0 1.1 1.2 1.3 1.4 1.5 "JPL Small-Body Database Browser: 1071 Brita (1924 RE)". Jet Propulsion Laboratory. https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=2001071. Retrieved 7 December 2017. 
  2. ↑ 2.0 2.1 2.2 Schmadel, Lutz D. (2007). "(1071) Brita". Dictionary of Minor Planet Names – (1071) Brita. Springer Berlin Heidelberg. pp. 91–92. doi:10.1007/978-3-540-29925-7_1072. ISBN 978-3-540-00238-3. 
  3. ↑ 3.0 3.1 "Asteroid 1071 Brita – Proper Elements". AstDyS-2, Asteroids – Dynamic Site. https://newton.spacedys.com/astdys/index.php?pc=1.1.6&n=1071. 
  4. ↑ 4.0 4.1 4.2 4.3 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. doi:10.1088/0004-637X/814/2/117. Bibcode: 2015ApJ...814..117N. http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2015ApJ...814..117N. Retrieved 7 December 2017. 
  5. ↑ 5.0 5.1 5.2 5.3 Masiero, Joseph R.; Nugent, C.; Mainzer, A. K.; Wright, E. L.; Bauer, J. M.; Cutri, R. M. et al. (October 2017). "NEOWISE Reactivation Mission Year Three: Asteroid Diameters and Albedos". The Astronomical Journal 154 (4): 10. doi:10.3847/1538-3881/aa89ec. Bibcode: 2017AJ....154..168M. 
  6. ↑ 6.0 6.1 6.2 6.3 6.4 "LCDB Data for (1071) Brita". Asteroid Lightcurve Database (LCDB). http://www.minorplanet.info/PHP/generateOneAsteroidInfo.php?AstInfo=1071%7CBrita. Retrieved 7 December 2017. 
  7. ↑ 7.0 7.1 7.2 7.3 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. https://sbnarchive.psi.edu/pds3/iras/IRAS_A_FPA_3_RDR_IMPS_V6_0/data/diamalb.tab. Retrieved 22 October 2019. 
  8. ↑ 8.0 8.1 8.2 8.3 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. doi:10.1088/2041-8205/759/1/L8. Bibcode: 2012ApJ...759L...8M. http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2012ApJ...759L...8M. Retrieved 7 December 2017. 
  9. ↑ 9.0 9.1 9.2 9.3 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. doi:10.1093/pasj/63.5.1117. Bibcode: 2011PASJ...63.1117U.  (online, AcuA catalog p. 153)
  10. ↑ 10.0 10.1 10.2 10.3 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. doi:10.3847/0004-6256/152/3/63. Bibcode: 2016AJ....152...63N. 
  11. ↑ 11.0 11.1 Angeli, C. A.; Guimarã; es, T. A.; Lazzaro, D.; Duffard, R.; Fernández, S. et al. (April 2001). "Rotation Periods for Small Main-Belt Asteroids From CCD Photometry". The Astronomical Journal 121 (4): 2245–2252. doi:10.1086/319936. Bibcode: 2001AJ....121.2245A. 
  12. ↑ 12.0 12.1 12.2 Behrend, Raoul. "Asteroids and comets rotation curves – (1071) Brita". Geneva Observatory. http://obswww.unige.ch/~behrend/page3cou.html#001071. Retrieved 7 December 2017. 
  13. ↑ 13.0 13.1 Benishek, Vladimir; Protitch-Benishek, Vojislava (April 2009). "CCD Photometry of Asteroids at the Belgrade Astronomical Observatory: 2008 January-September". The Minor Planet Bulletin 36 (2): 35–37. ISSN 1052-8091. Bibcode: 2009MPBu...36...35B. http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2009MPBu...36...35B. Retrieved 7 December 2017. 
  14. ↑ 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. doi:10.1016/j.icarus.2015.08.007. Bibcode: 2015Icar..261...34V. http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2015Icar..261...34V. Retrieved 7 December 2017. 
  15. ↑ 15.0 15.1 "1071 Brita (1924 RE)". Minor Planet Center. https://www.minorplanetcenter.net/db_search/show_object?object_id=1071. Retrieved 7 December 2017. 

External links



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