1255 Schilowa

Last updated

1255 Schilowa
Discovery [1] [2]
Discovered by G. Neujmin
Discovery site Simeiz Obs.
Discovery date8 July 1932
Designations
(1255) Schilowa
Named after
 Maria Zhilova
(Russian astronomer)
1932 NC ·1933 VB
A905 UC
main-belt  ·(outer) [3]
background [4]
Orbital characteristics [2]
Epoch 27 April 2019 (JD 2458600.5)
Uncertainty parameter 0
Observation arc 113.54 yr (41,472 d)
Aphelion 3.6891 AU
Perihelion 2.5983 AU
3.1437 AU
Eccentricity 0.1735
5.57 yr (2,036 d)
122.84°
0° 10m 36.48s / day
Inclination 8.5473°
237.62°
133.51°
Physical characteristics
32.52±1.6  km [5]
33.669±0.718 km [6]
35.846±2.824 km [7]
36.49±0.51 km [8]
37.24±4.78 km [9]
29.536±0.006  h [3] [10] [11]
0.071±0.031 [9]
0.111±0.004 [8]
0.1144±0.0263 [7]
0.130±0.027 [6]
0.1389±0.015 [5]
S (assumed) [3]
10.20 [5] [7] [8]
10.3 [1] [2] [3]
10.63 [9]

    1255 Schilowa, provisional designation 1932 NC, is a background asteroid from the outer regions of the asteroid belt, approximately 34 kilometers (21 miles) in diameter. It was discovered on 8 July 1932, by Soviet astronomer Grigory Neujmin at the Simeiz Observatory on the Crimean peninsula. [1] The asteroid has a longer-than average rotation period of 29.5 hours. It was named after Mariya Zhilova (Schilowa), who was Russia's first professional female astronomer. [12]

    Contents

    Orbit and classification

    Schilowa is a non-family asteroid from the main belt's background population. [4] It orbits the Sun in the outer main-belt at a distance of 2.6–3.7  AU once every 5 years and 7 months (2,036 days; semi-major axis of 3.14 AU). Its orbit has an eccentricity of 0.17 and an inclination of 9° with respect to the ecliptic. [2]

    The asteroid was first observed as A905 UC at Heidelberg Observatory in October 1905. The body's observation arc began one week later at Heidelberg in November 1905, almost 27 years prior to its official discovery observation at Simeiz. [1]

    Naming

    This minor planet was named after Mariya Vasilyevna Zhilova (1870–1934), also known Mariya Shilova or Schilowa, a Russian astronomer at the Pulkovo Observatory near Saint Petersburg. She was Russia's first professional female astronomer and awarded for her work on celestial mechanics by the Russian Astronomical Society in 1905. The official naming citation was mentioned in The Names of the Minor Planets by Paul Herget in 1955 ( H 115 ). [12]

    Physical characteristics

    Schilowa is an assumed S-type asteroid. [3]

    Rotation period

    Between 2005 and 2009, three rotational lightcurves of Schilowa were obtained from photometric observations by European astronomers Pierre Antonini, Laurent Bernasconi, René Roy, Reiner Stoss, Jaime Nomen, Salvador Sánchez, Raoul Behrend. Lightcurve analysis gave a rotation period of 29.536 hours (also 24 h and 29.7 h) with a brightness amplitude between 0.09 and 0.15 magnitude ( U=2 and 2/2- ). [10]

    Spin axis

    In 2013, an international study modeled a lightcurve from various data sources including the Uppsala Asteroid Photometric Catalogue and the Palomar Transient Factory survey. The lightcurve gave a sidereal period of 29.4674 hours and allowed for the determination of two spin axis of (156.0°, −4.0°) and (338.0°, 15.0°) in ecliptic coordinates (λ, β). [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, Schilowa measures between 32.52 and 37.24 kilometers in diameter and its surface has an albedo between 0.071 and 0.1389. [5] [6] [7] [8] [9] The Collaborative Asteroid Lightcurve Link derives an albedo of 0.1273 and a diameter of 32.44 kilometers based on an absolute magnitude of 10.3. [3]

    Related Research Articles

    Pawlowia, provisional designation 1923 OX, is a background asteroid from the central regions of the asteroid belt, approximately 20 kilometers in diameter. It was discovered on 5 October 1923, by Soviet astronomer Vladimir Albitsky at the Simeiz Observatory on the Crimean peninsula. The asteroid was named after Russian physiologist and Nobelist Ivan Pavlov.

    La Paz, provisional designation 1923 PD, is a carbonaceous asteroid from the outer region of the asteroid belt, approximately 40 kilometers in diameter. It was discovered on 31 October 1923, by German astronomer Max Wolf at the Heidelberg-Königstuhl State Observatory and named after the city La Paz in Bolivia.

    <span class="mw-page-title-main">1039 Sonneberga</span> Asteroid

    1039 Sonneberga, provisional designation 1924 TL, is a dark background asteroid, approximately 34 kilometers in diameter, located in the central region of the asteroid belt. It was discovered on 24 November 1924, by German astronomer Max Wolf at Heidelberg Observatory in southwest Germany. The asteroid was named for the German city of Sonneberg, where the Sonneberg Observatory is located.

    <span class="mw-page-title-main">1032 Pafuri</span> Dark background asteroid from the outer regions of the asteroid belt

    1032 Pafuri, provisional designation 1924 SA, is a dark background asteroid from the outer regions of the asteroid belt, approximately 65 kilometers in diameter. It was discovered on 30 May 1924, by English astronomer Harry Edwin Wood at the Union Observatory in Johannesburg, South Africa. The asteroid was named for the river in the Pafuri Triangle in South Africa, created by the confluence of the Limpopo and Levubu rivers. The body's spectral type and rotation period are still poorly determined.

    1033 Simona, provisional designation 1924 SM, is a stony Eoan asteroid from the outer regions of the asteroid belt, approximately 20 kilometers in diameter. The asteroid was discovered by George Van Biesbroeck in 1924, who named it after his daughter Simona.

    <span class="mw-page-title-main">1118 Hanskya</span> Asteroid

    1118 Hanskya is a large background asteroid, approximately 77 kilometers in diameter, located in the outer regions of the asteroid belt. Discovered by Sergey Belyavsky and Nikolaj Ivanov in 1927, it was named after Russian astronomer Aleksey Hansky. The presumed dark C-type asteroid has a rotation period of 15.6 hours.

    1123 Shapleya, provisional designation 1928 ST, is a stony Florian asteroid from the inner regions of the asteroid belt, approximately 11 kilometers in diameter. It was discovered on 21 September 1928, by Russian astronomer Grigory Neujmin at Simeiz Observatory on the Crimean peninsula. It was named after American astronomer Harlow Shapley.

    <span class="mw-page-title-main">1132 Hollandia</span> Asteroid

    1132 Hollandia, provisional designation 1929 RB1, is a stony asteroid from the middle region of the asteroid belt, approximately 27 kilometers in diameter. It was discovered on 13 September 1929, by Dutch astronomer Hendrik van Gent at Leiden Southern Station, annex to the Johannesburg Observatory in South Africa. It was named for the region Holland in the Netherlands.

    <span class="mw-page-title-main">1140 Crimea</span> Stony asteroid

    1140 Crimea, provisional designation 1929 YC, is a stony asteroid from the middle region of the asteroid belt, approximately 28 kilometers in diameter. It was discovered on 30 December 1929, by Soviet astronomer Grigory Neujmin at Simeiz Observatory on the Crimean peninsula, after which it was named.

    1240 Centenaria, provisional designation 1932 CD, is a background asteroid from the outer regions of the asteroid belt, approximately 60 kilometers in diameter. It was discovered on 5 February 1932, by astronomer Richard Schorr at the Bergedorf Observatory in Hamburg, Germany. The assumed C-type asteroid has a rotation period of 11.3 hours. It was named for the 100th anniversary of the discovering observatory.

    1541 Estonia, provisional designation 1939 CK, is an asteroid from the central regions of the asteroid belt, approximately 21 kilometers in diameter. It was discovered on 12 February 1939, by astronomer Yrjö Väisälä at the Iso-Heikkilä Observatory near Turku, Finland. The asteroid was named after the Baltic country of Estonia.

    2016 Heinemann, provisional designation 1938 SE, is a carbonaceous Themistian asteroid from the outer regions of the asteroid belt, approximately 22 kilometers in diameter. It was discovered on 18 September 1938, by German astronomer Alfred Bohrmann at Heidelberg Observatory in southwest Germany, and later named after ARI-astronomer Karl Heinemann (1898–1970).

    1309 Hyperborea is a carbonaceous background asteroid from the outermost regions of the asteroid belt, approximately 57 kilometers in diameter. It was discovered on 11 October 1931, by Soviet astronomer Grigory Neujmin at the Simeiz Observatory on the Crimean peninsula, and given the provisional designation 1931 TO. The asteroid was named after Hyperborea, the northern homeland of a Greek mythical race of giants.

    2173 Maresjev, provisional designation 1974 QG1, is a dark background asteroid from the outer regions of the asteroid belt, approximately 28 kilometers (17 miles) in diameter. It was discovered on 22 August 1974, by Soviet–Ukrainian astronomer Lyudmila Zhuravleva at the Crimean Astrophysical Observatory in Nauchnij, on the Crimean peninsula. It was named for Soviet war veteran Alexey Maresyev. The assumed C-type asteroid has a tentative rotation period of 11.6 hours.

    1303 Luthera, provisional designation 1928 FP, is a dark asteroid and the parent body of the Luthera family, located in the outermost regions of the asteroid belt. It measures approximately 90 kilometers in diameter. The asteroid was discovered on 16 March 1928, by astronomer Friedrich Schwassmann at the Bergedorf Observatory in Hamburg, Germany, and later named after German astronomer Robert Luther.

    2043 Ortutay, provisional designation 1936 TH, is a dark asteroid from the outer regions of the asteroid belt, approximately 45 kilometers in diameter. The asteroid was discovered by Hungarian astronomer György Kulin at the Konkoly Observatory, Budapest, on 12 November 1936. It was named after Hungarian ethnographer Gyula Ortutay.

    1426 Riviera, provisional designation 1937 GF, is a bright asteroid from the central regions of the asteroid belt, approximately 16 kilometers in diameter. Discovered by Marguerite Laugier at the Nice Observatory in 1937, the asteroid was later named for the Côte d'Azur, also known as French Riviera.

    1266 Tone is a dark background asteroid from the outer regions of the asteroid belt, approximately 80 kilometers in diameter. Discovered by astronomer Okuro Oikawa at the Tokyo Observatory in 1927, it was assigned the provisional designation 1927 BD. The asteroid was later named after the Tone River, one of Japan's largest rivers.

    1461 Jean-Jacques, provisional designation 1937 YL, is a metallic asteroid from the outer region of the asteroid belt, approximately 34 kilometers in diameter. It was discovered on 30 December 1937, by French astronomer Marguerite Laugier at Nice Observatory in southern France, who named it after her son Jean-Jacques Laugier.

    (7563) 1988 BC is a background asteroid from the central region of the asteroid belt, approximately 16 kilometers in diameter. It was discovered on 16 January 1988, by Japanese amateur astronomer Takuo Kojima at the YGCO Chiyoda Station in the Kantō region of Japan. The asteroid has a rotation period of 6.5 hours.

    References

    1. 1 2 3 4 "1255 Schilowa (1932 NC)". Minor Planet Center. Retrieved 4 November 2019.
    2. 1 2 3 4 "JPL Small-Body Database Browser: 1255 Schilowa (1932 NC)" (2019-05-11 last obs.). Jet Propulsion Laboratory . Retrieved 4 November 2019.
    3. 1 2 3 4 5 6 "LCDB Data for (1255) Schilowa". Asteroid Lightcurve Database (LCDB). Retrieved 27 December 2017.
    4. 1 2 "Asteroid 1255 Schilowa – Proper Elements". AstDyS-2, Asteroids – Dynamic Site. Retrieved 29 October 2019.
    5. 1 2 3 4 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.
    6. 1 2 3 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.
    7. 1 2 3 4 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.
    8. 1 2 3 4 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)
    9. 1 2 3 4 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 . Retrieved 27 December 2017.
    10. 1 2 Behrend, Raoul. "Asteroids and comets rotation curves – (1255) Schilowa". Geneva Observatory. Retrieved 27 December 2017.
    11. ↑ "Asteroid 1255 Schilowa". Small Bodies Data Ferret. Retrieved 4 November 2019.
    12. 1 2 Schmadel, Lutz D. (2007). "(1255) Schilowa". Dictionary of Minor Planet Names – (1255) Schilowa. Springer Berlin Heidelberg. p. 104. doi:10.1007/978-3-540-29925-7_1256. ISBN   978-3-540-00238-3.
    13. ↑ Hanus, J.; Durech, J.; Broz, M.; Marciniak, A.; Warner, B. D.; Pilcher, F.; et al. (March 2013). "Asteroids' physical models from combined dense and sparse photometry and scaling of the YORP effect by the observed obliquity distribution". Astronomy and Astrophysics. 551: 16. arXiv: 1301.6943 . Bibcode:2013A&A...551A..67H. doi:10.1051/0004-6361/201220701.
    This page is based on this Wikipedia article
    Text is available under the CC BY-SA 4.0 license; additional terms may apply.
    Images, videos and audio are available under their respective licenses.