(208) Lacrimosa

208 Lacrimosa
208Lacrimosa (Lightcurve Inversion).png
A three-dimensional model of 208 Lacrimosa based on its light curve.
Discovery
Discovered byJohann Palisa
Discovery date21 October 1879
Designations
(208) Lacrimosa
Pronunciation/lækrɪˈmsə/
Named after
Our Lady of Sorrows (lacrimōsa)
A879 UB
Main belt (Koronis)
Orbital characteristics[1]
Epoch 31 July 2016 (JD 2457600.5)
Uncertainty parameter 0
Observation arc115.12 yr (42,049 d)
Aphelion2.9309 AU (438.46 Gm)
Perihelion2.85551 AU (427.178 Gm)
2.89320 AU (432.817 Gm)
Eccentricity0.013028
4.92 yr (1,797.5 d)
17.51 km/s
209.78°
0° 12m 1.008s / day
Inclination1.7458°
4.2626°
108.363°
Physical characteristics
Dimensions41.33±1.7 km
14.085734 h (0.5869056 d)[2]
0.2696±0.023
S
8.96

Lacrimosa (minor planet designation: 208 Lacrimosa) is a main-belt asteroid that was discovered by Austrian astronomer Johann Palisa on October 21, 1879, in Pola. The name derives from Our Lady of Sorrows, a title given to Mary, the mother of Jesus. It is orbiting the Sun at a distance of 2.89320 AU with a period of 4.92 yr and an eccentricity (ovalness) of 0.013. The orbital plane is inclined at an angle of 1.7° to the plane of the ecliptic.[1]

During 2003, the asteroid was observed occulting a star. The resulting chords provided a cross-section diameter estimate of 44.3 km.[3] 10μ radiometric data collected from Kitt Peak in 1975 gave a diameter estimate of 42 km for this asteroid.[4] It is classified as an S-type asteroid and is one of the largest members of the Koronis asteroid family.[5] Hence it is probably a piece of the original asteroid that was shattered in an ancient impact that created the family.

References[]

  1. ^ a b Yeomans, Donald K., "208 Lacrimosa", JPL Small-Body Database Browser, NASA Jet Propulsion Laboratory, retrieved 12 May 2016.
  2. ^ Vokrouhlický, D.; et al. (May 2021), "(208) Lacrimosa: A case that missed the Slivan state?", Astronomy & Astrophysics, 649: 18, arXiv:2103.12480, Bibcode:2021A&A...649A..45V, doi:10.1051/0004-6361/202140585, A45.
  3. ^ Shevchenko, Vasilij G.; Tedesco, Edward F. (September 2006), "Asteroid albedos deduced from stellar occultations", Icarus, 184 (1): 211–220, Bibcode:2006Icar..184..211S, doi:10.1016/j.icarus.2006.04.006.
  4. ^ Morrison, D.; Chapman, C. R. (March 1976), "Radiometric diameters for an additional 22 asteroids", Astrophysical Journal, vol. 204, pp. 934–939, Bibcode:2008mgm..conf.2594S, doi:10.1142/9789812834300_0469.
  5. ^ Moore, Patrick; Rees, Robin, eds. (2011), Patrick Moore's Data Book of Astronomy (2nd ed.), Cambridge University Press, pp. 164–165.

External links[]