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Contents

   



(Top)
 


1 Classification and orbit  





2 Naming  





3 Physical characteristics  



3.1  Rotation period  





3.2  Diameter and albedo  







4 References  





5 External links  














1181 Lilith






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From Wikipedia, the free encyclopedia
 


1181 Lilith
Discovery[1]
Discovered byB. Jekhovsky
Discovery siteAlgiers Obs.
Discovery date11 February 1927
Designations

MPC designation

(1181) Lilith

Named after

Lili Boulanger
(French composer)[2]

Alternative designations

1927 CQ · 1925 QF
1943 WC · 1953 CA
1964 PG · A914 BA

Minor planet category

main-belt · (middle)[3]
background[4][5][6]
Symbol (astrological)
Orbital characteristics[7]
Epoch 31 May 2020 (JD 2459000.5)
Uncertainty parameter 0
Observation arc89.50 yr (32,689 d)
Aphelion3.1851 AU
Perihelion2.1457 AU

Semi-major axis

2.6654 AU
Eccentricity0.1950

Orbital period (sidereal)

4.35 yr (1,589 d)

Mean anomaly

219.56°

Mean motion

0° 13m 35.4s / day
Inclination5.6012°

Longitude of ascending node

260.70°

Argument of perihelion

156.05°
Physical characteristics

Mean diameter

20.492±0.276 km[8][9]

Synodic rotation period

15.04±0.01 h[10]

Geometric albedo

0.106±0.011[9]

Spectral type

SMASS = X[7][5]

Absolute magnitude (H)

11.3[1][7]

1181 Lilith (prov. designation: 1927 CQ) is a metallic asteroid from the middle region of the asteroid belt, approximately 23 kilometers (14 miles) in diameter. It was discovered on 11 February 1927, by Russian–French astronomer Benjamin JekhowskyatAlgiers Observatory in Algeria, Northern Africa, and named after French composer Lili Boulanger.[2][1]

Classification and orbit[edit]

Lilith is a non-family asteroid of the main belt's background population when applying the hierarchical clustering method to its proper orbital elements.[4][5][6] It orbits the Sun in the middle asteroid belt at a distance of 2.1–3.2 AU once every 4 years and 4 months (1,587 days). Its orbit has an eccentricity of 0.20 and an inclination of 6° with respect to the ecliptic.[7] First observed as A914 BAatSimeiz Observatory in 1914, Lilith'sobservation arc begins 7 years after its official discovery observation, with its first used observation made at Konkoly Observatory in 1934.[1]

Naming[edit]

This minor planet was named by the discoverer for French composer Marie-Juliette Olga Lili Boulanger (1893–1918), younger sister of the noted conductor and composer, Nadia Boulanger. Her byname "Lili" originates from Lilith, Adam's first wife in Jewish mythology (H 110).[2]

Physical characteristics[edit]

Lilith is an X-type asteroid in the Bus–Binzel SMASS taxonomy. It has also been classified as a P-type asteroid by NASA's space-based Wide-field Infrared Survey Explorer (WISE).[3]

Rotation period[edit]

In February 2014, a rotational lightcurveofLilith was obtained by Italian astronomer Andrea Ferrero at the Bigmuskie Observatory (B88) in Mombercelli, Italy. The photometric observations rendered a periodof15.04±0.01 hours with a brightness amplitude of 0.11 in magnitude (U=2).[10]

Diameter and albedo[edit]

According to NASA's WISE telescope with its subsequent NEOWISE mission, Lilith measures (20.492±0.276) kilometers in diameter and its surface has an albedo of (0.106±0.011),[8][9] while the Collaborative Asteroid Lightcurve Link assumes an albedo of 0.10, and calculates a diameter of 24.2 kilometers with an absolute magnitude of 11.2.[7] The WISE team also published an alternative mean diameter (22.133±0.254 km) and an albedo of (0.116±0.022).[5]

References[edit]

  1. ^ a b c d "1181 Lilith (1927 CQ)". Minor Planet Center. Retrieved 21 July 2020.
  • ^ a b c Schmadel, Lutz D. (2007). "(1181) Lilith". Dictionary of Minor Planet Names. Springer Berlin Heidelberg. p. 99. doi:10.1007/978-3-540-29925-7_1182. ISBN 978-3-540-00238-3.
  • ^ a b "LCDB Data for (1181) Lilith". Asteroid Lightcurve Database (LCDB). Retrieved 25 May 2016.
  • ^ a b "Asteroid 1181 Lilith – Proper Elements". AstDyS-2, Asteroids – Dynamic Site. Retrieved 21 July 2020.
  • ^ a b c d "Asteroid 1181 Lilith – Nesvorny HCM Asteroid Families V3.0". Small Bodies Data Ferret. Retrieved 21 July 2020.
  • ^ a b Zappalà, V.; Bendjoya, Ph.; Cellino, A.; Farinella, P.; Froeschle, C. (1997). "Asteroid Dynamical Families". NASA Planetary Data System: EAR-A-5-DDR-FAMILY-V4.1. Retrieved 21 July 2020. (PDS main page)
  • ^ a b c d e "JPL Small-Body Database Browser: 1181 Lilith (1927 CQ)" (2020-06-17 last obs.). Jet Propulsion Laboratory. Retrieved 21 July 2020.
  • ^ a b Mainzer, A. K.; Bauer, J. M.; Cutri, R. M.; Grav, T.; Kramer, E. A.; Masiero, J. R.; et al. (June 2016). "NEOWISE Diameters and Albedos V1.0". NASA Planetary Data System. Bibcode:2016PDSS..247.....M. Retrieved 21 July 2020.
  • ^ 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. Retrieved 9 December 2016.
  • ^ a b Ferrero, Andrea (July 2014). "Period Determination of Six Main Belt Asteroids". The Minor Planet Bulletin. 41 (3): 184–185. Bibcode:2014MPBu...41..184F. ISSN 1052-8091. Retrieved 25 May 2016.
  • External links[edit]


    Retrieved from "https://en.wikipedia.org/w/index.php?title=1181_Lilith&oldid=1229657056"

    Categories: 
    Minor planet object articles (numbered)
    Background asteroids
    Discoveries by Benjamin Jekhowsky
    Named minor planets
    X-type asteroids (SMASS)
    Astronomical objects discovered in 1927
    Hidden categories: 
    Use dmy dates from October 2019
    Webarchive template wayback links
    Articles with JPL SBDB identifiers
    Articles with MPC identifiers
     



    This page was last edited on 18 June 2024, at 00:48 (UTC).

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