1158 Luda

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1158 Luda
Discovery [1]
Discovered by G. Neujmin
Discovery site Simeiz Obs.
Discovery date31 August 1929
Designations
(1158) Luda
Named after
Ludmilla Neujmin
(discoverer's sister) [2]
1929 QF ·1954 UQ1
1958 TG1 ·1972 GC
main-belt  · Maria [3]  · Eunomia [4]
Orbital characteristics [1]
Epoch 16 February 2017 (JD 2457800.5)
Uncertainty parameter 0
Observation arc 87.27 yr (31,876 days)
Aphelion 2.8532 AU
Perihelion 2.2742 AU
2.5637 AU
Eccentricity 0.1129
4.11 yr (1,499 days)
56.051°
0° 14m 24.36s / day
Inclination 14.834°
344.74°
56.226°
Physical characteristics
Dimensions18.636±0.207 km [5]
18.70±0.48 km [6]
19.06±0.8 km (IRAS:8) [7]
20.596±0.130 km [8]
6.86±0.01 h [9]
6.863±0.005 h [10]
6.870±0.005 h [11]
6.90±0.01 h [12]
7.44 h [3]
0.2025±0.0548 [8]
0.221±0.034 [5]
0.2329±0.022(IRAS:8) [7]
0.253±0.015 [6]
S [4] [13]
10.8 [1] [4] [6] [7] [8]  ·10.95±0.33 [13]

    1158 Luda, provisional designation 1929 QF, is a stony asteroid from the middle regions of the asteroid belt, approximately 19 kilometers in diameter. It was discovered on 31 August 1929, by Soviet astronomer Grigory Neujmin at Simeiz Observatory on the Crimean peninsula. [14] It was named after Ludmilla Neujmin, the sister of the discoverer. [2]

    Contents

    Orbit and classification

    Luda orbits the Sun at a distance of 2.3–2.9  AU once every 4 years and 1 month (1,499 days). Its orbit has an eccentricity of 0.11 and an inclination of 15° with respect to the ecliptic. [1] The body's observation arc begins with its first used observation at Johannesburg Observatory, one month after its official discovery observation at Simeiz. [14] Luda is a stony S-type asteroid. [13]

    Based on its orbital elements, Luda is a member of the Eunomia family, a large group of stony asteroids and the most prominent family in the intermediate main-belt, while Argentine astronomer Alvarez-Candal from the Universidad Nacional de Córdoba groups it into the smaller Maria family, which is named after 170 Maria (the same discrepancy exists for 9175 Graun and 2429 Schürer). [3] : 389 

    Physical characteristics

    Photometry

    Several rotational lightcurves of Luda were obtained from photometric observations. Analysis of the best-rated lightcurves obtained by French amateur astronomer Laurent Bernasconi, American astronomer Brian Warner, and an international group led by Korean astronomers, gave a well-defined rotation period between 6.86 and 6.87 hours with a brightness variation between 0.13 and 0.22 magnitude ( U=3/3-/3 ). [9] [10] [11] Photometric observations also gave a period of 6.9 and 7.44 hours, but these were derived from a fragmentary and ambiguous light curve, respectively.( U=1/2 ). [3] [12]

    Diameter and albedo

    According to the surveys carried out by the Infrared Astronomical Satellite IRAS, the Japanese Akari satellite, and NASA's Wide-field Infrared Survey Explorer with its subsequent NEOWISE mission, Luda measures between 18.63 and 20.59 kilometers in diameter and its surface has an albedo between 0.20 and 0.25. [5] [6] [7] [8] The Collaborative Asteroid Lightcurve Link adopts the results obtained by IRAS, that is, an albedo of 0.232 and a diameter of 19.06 kilometers with an absolute magnitude of 10.8. [4]

    Naming

    This minor planet was named for Ludmilla Neujmin, the sister of the discoverer. "Luda" is a diminutive of Ludmilla. [2] Astronomer Lutz Schmadel, who compiled this naming citation, based it on a private communication with "N. S. Samojlova-Yakhontova", as neither the Minor Planet Circulars nor The Names of the Minor Planets give any information about this asteroid's name. [2] [15]

    Related Research Articles

    779 Nina is a large background asteroid, approximately 80 kilometers in diameter, located in the central region of the asteroid belt. It was discovered on 25 January 1914, by Russian astronomer Grigory Neujmin(1886-1946) at the Simeiz Observatory on the Crimean peninsula. The metallic X-type asteroid with an intermediate albedo has a rotation period of 11.2 hours. It was named after the discoverer's sister, Nina Neujmina (Tsentilovich) (1889–1971).

    917 Lyka is a background asteroid, approximately 32 kilometers in diameter, located in the inner region of the asteroid belt. It was discovered on 5 September 1915, by Russian astronomer Grigory Neujmin at the Simeiz Observatory on the Crimean peninsula. The X-type asteroid has a rotation period of 7.9 hours and is likely spherical in shape. It was named after Lyka, a friend of the discoverer's sister.

    <span class="mw-page-title-main">1030 Vitja</span>

    1030 Vitja, provisional designation 1924 RQ, is a dark background asteroid from the outer regions of the asteroid belt, approximately 60 kilometers in diameter. It was discovered on 25 May 1924, by Soviet–Russian astronomer Vladimir Albitsky at the Simeiz Observatory on the Crimean peninsula. The asteroid was named in honor of Viktor Zaslavskij (1925–1944), a relative of the discoverer.

    <span class="mw-page-title-main">1042 Amazone</span>

    1042 Amazone, provisional designation 1925 HA, is a dark asteroid and slow rotator in the outer asteroid belt, approximately 70 kilometers in diameter. It was discovered on 22 April 1925, by German astronomer Karl Reinmuth at Heidelberg Observatory in southern Germany. It is named after the Amazons from Greek mythology.

    1043 Beate, provisional designation 1925 HB, is a stony asteroid from the outer region of the asteroid belt, approximately 32 kilometers in diameter. It was discovered by German astronomer Karl Reinmuth at the Heidelberg-Königstuhl State Observatory on 22 April 1925. Any reference of its name to a person is unknown.

    <span class="mw-page-title-main">1075 Helina</span>

    1075 Helina, provisional designation 1926 SC, is a stony Eos asteroid from the outer regions of the asteroid belt, approximately 34 kilometers in diameter. It was discovered on 29 September 1926, by astronomer Grigory Neujmin at the Simeiz Observatory on the Crimean peninsula. The asteroid was named after the discoverer's son, Helij Neujmin.

    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.

    1124 Stroobantia, provisional designation 1928 TB, is a metallic asteroid from the outer region of the asteroid belt, approximately 25 kilometers in diameter. It was discovered on 6 October 1928, by Belgian astronomer Eugène Delporte at Uccle Observatory in Belgium. It is named for astronomer Paul Stroobant.

    <span class="mw-page-title-main">1137 Raïssa</span>

    1137 Raïssa is a stony background asteroid and slow rotator, approximately 22 kilometers in diameter, located in the inner regions of the asteroid belt. It was discovered by Grigory Neujmin at Simeiz Observatory in 1929, and named in memory of Raïssa Maseeva, who worked at the Pulkovo Observatory.

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

    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.

    1146 Biarmia, provisional designation 1929 JF, is a metallic background asteroid from the outer regions of the asteroid belt, approximately 32 kilometers in diameter. It was discovered on 7 May 1929, by Russian astronomer Grigory Neujmin at the Simeiz Observatory on the Crimean peninsula. The asteroid was named for the Bjarmaland mentioned in Norse sagas.

    1609 Brenda, provisional designation 1951 NL, is a stony asteroid from the central region of the asteroid belt, approximately 28 kilometers in diameter. It was discovered on 10 July 1951, by South African astronomer Ernest Johnson at the Johannesburg Observatory in South Africa, and named after his granddaughter, Brenda.

    1347 Patria, provisional designation 1931 VW, is a carbonaceous asteroid from the background population of the central asteroid belt, approximately 32 kilometers in diameter. It was discovered on 6 November 1931, by Soviet astronomer Grigory Neujmin at the Simeiz Observatory on the Crimean peninsula. The asteroid was named for the Latin word of fatherland.

    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.

    <span class="mw-page-title-main">1940 Whipple</span>

    1940 Whipple is a carbonaceous background asteroid from the outer region of the asteroid belt, approximately 35 kilometers in diameter. It was discovered on 2 February 1975, by the Harvard College Observatory at its George R. Agassiz Station near Harvard, Massachusetts, in the United States, and named after astronomer Fred Whipple.

    1734 Zhongolovich, provisional designation 1928 TJ, is a carbonaceous Dorian asteroid from the central region of the asteroid belt, approximately 28 kilometers in diameter.

    <span class="mw-page-title-main">1339 Désagneauxa</span>

    1339 Désagneauxa, provisional designation 1934 XB, is a stony Eoan asteroid from the outer region of the asteroid belt, approximately 24 kilometers in diameter. It was discovered on 4 December 1934, by French astronomer Louis Boyer at the North African Algiers Observatory in Algeria. A few nights later, the asteroid was independently discovered by astronomers Grigory Neujmin and Eugène Delporte, at the Crimean Simeiz and Belgian Uccle Observatory, respectively. It was later named after discoverer's brother-in-law.

    <span class="mw-page-title-main">1289 Kutaïssi</span>

    1289 Kutaïssi is a stony Koronian asteroid from the outer region of the asteroid belt. Discovered by Grigory Neujmin at Simeiz Observatory in 1933, it was later named after the Georgian city of Kutaisi. The S-type asteroid has a rotation period of 3.6 hours and measures approximately 22 kilometers in diameter.

    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.

    1481 Tübingia, provisional designation 1938 DR, is a dark asteroid from the outer region of the asteroid belt, approximately 34 kilometers in diameter. It was discovered on 7 February 1938, by German astronomer Karl Reinmuth at Heidelberg Observatory in southern Germany, and named for the German city of Tübingen.

    References

    1. 1 2 3 4 "JPL Small-Body Database Browser: 1158 Luda (1929 QF)" (2017-01-07 last obs.). Jet Propulsion Laboratory . Retrieved 25 January 2017.
    2. 1 2 3 4 Schmadel, Lutz D. (2007). "(1158) Luda". Dictionary of Minor Planet Names – (1158) Luda. Springer Berlin Heidelberg. p. 98. doi:10.1007/978-3-540-29925-7_1159. ISBN   978-3-540-00238-3.
    3. 1 2 3 4 Alvarez-Candal, Alvaro; Duffard, René; Angeli, Cláudia A.; Lazzaro, Daniela; Fernández, Silvia (December 2004). "Rotational lightcurves of asteroids belonging to families". Icarus. 172 (2): 388–401. Bibcode:2004Icar..172..388A. doi:10.1016/j.icarus.2004.06.008 . Retrieved 25 January 2017.
    4. 1 2 3 4 "LCDB Data for (1158) Luda". Asteroid Lightcurve Database (LCDB). Retrieved 25 January 2017.
    5. 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. S2CID   119293330 . Retrieved 25 January 2017.
    6. 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)
    7. 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.
    8. 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. S2CID   118700974.
    9. 1 2 Kim, M.-J.; Choi, Y.-J.; Moon, H.-K.; Byun, Y.-I.; Brosch, N.; Kaplan, M.; et al. (March 2014). "Rotational Properties of the Maria Asteroid Family". The Astronomical Journal. 147 (3): 15. arXiv: 1311.5318 . Bibcode:2014AJ....147...56K. doi:10.1088/0004-6256/147/3/56. S2CID   119256964 . Retrieved 25 January 2017.
    10. 1 2 Behrend, Raoul. "Asteroids and comets rotation curves – (1158) Luda". Geneva Observatory . Retrieved 25 January 2017.
    11. 1 2 Warner, Brian D. (January 2011). "Upon Further Review: III. An Examination of Previous Lightcurve Analysis from the Palmer Divide Observatory". The Minor Planet Bulletin. 38 (1): 21–23. Bibcode:2011MPBu...38...21W. ISSN   1052-8091 . Retrieved 25 January 2017.
    12. 1 2 Warner, Brian D. (September 2005). "Asteroid lightcurve analysis at the Palmer Divide Observatory - winter 2004-2005". The Minor Planet Bulletin. 32 (3): 54–58. Bibcode:2005MPBu...32...54W. ISSN   1052-8091 . Retrieved 25 January 2017.
    13. 1 2 3 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 25 January 2017.
    14. 1 2 "1158 Luda (1929 QF)". Minor Planet Center. Retrieved 25 January 2017.
    15. ↑ Schmadel, Lutz D. (1997). Dictionary of Minor Planet Names – Introduction, Source of Information. Springer Berlin Heidelberg. p. 16. ISBN   978-3-662-06617-1.
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