1141 Bohmia

1141 Bohmia, provisional designation 1930 AA, is a Florian asteroid from the inner regions of the asteroid belt, approximately 6 kilometers in diameter. It was discovered by German astronomer Max Wolf at the Heidelberg-Königstuhl State Observatory on 4 January 1930.[6] The asteroid was named after German philanthropist Katharina Bohm-Waltz.[2]

1141 Bohmia
Discovery [1]
Discovered byM. F. Wolf
Discovery siteHeidelberg Obs.
Discovery date4 January 1930
Designations
(1141) Bohmia
Named after
Katharina Bohm-Waltz [2]
(German philanthropist)
1930 AA · 1949 SU
main-belt · (inner)
Flora [3]
Orbital characteristics [1]
Epoch 4 September 2017 (JD 2458000.5)
Uncertainty parameter 0
Observation arc87.83 yr (32,079 days)
Aphelion2.6457 AU
Perihelion1.8946 AU
2.2701 AU
Eccentricity0.1654
3.42 yr (1,249 days)
284.92°
0° 17m 17.52s / day
Inclination4.2753°
105.52°
276.18°
Physical characteristics
Dimensions5.642±0.241 km[4]
0.251±0.060[5]
13.4[1]

    Orbit and classification

    Bohmia is a member of the Flora family (402),[3] a giant asteroid family and the largest family of stony asteroids in the main-belt.[7]:23 It orbits the Sun in the inner asteroid belt at a distance of 1.9–2.6 AU once every 3 years and 5 months (1,249 days; semi-major axis 2.27 AU). Its orbit has an eccentricity of 0.17 and an inclination of 4° with respect to the ecliptic.[1] The body's observation arc begins with its official discovery observation at Heidelberg in January 1930.[6]

    Physical characteristics

    Bohmia's spectral type is unknown. However, its albedo is similar to that of the Flora family's parent body, 8 Flora, which is a stony S-type asteroid.[7]:23

    Diameter and albedo

    According to the survey carried out by the NEOWISE mission of NASA's Wide-field Infrared Survey Explorer, Bohmia measures 5.642 kilometers in diameter and its surface has an albedo of 0.251.[4][5]

    Rotation period

    No rotational lightcurve of Bohmia has been obtained from photometric observations. The asteroid's rotation period, poles and shape remain unknown.[1][8]

    Naming

    This minor planet was named after Katharina Bohm-Waltz (died 1901), a German philanthropist who donated a 0.72-meter reflecting telescope (named Waltz reflector) to the discovering Heidelberg Observatory. The official naming citation was mentioned in The Names of the Minor Planets by Paul Herget in 1955 (H 107).[2]

    References
    1. "JPL Small-Body Database Browser: 1141 Bohmia (1930 AA)" (2017-11-02 last obs.). Jet Propulsion Laboratory. Retrieved 7 January 2018.
    2. Schmadel, Lutz D. (2007). Dictionary of Minor Planet Names – (1141) Bohmia. Springer Berlin Heidelberg. pp. 96–97. doi:10.1007/978-3-540-29925-7_1142. ISBN 978-3-540-00238-3.
    3. "Asteroid 1141 Bohmia – Nesvorny HCM Asteroid Families V3.0". Small Bodies Data Ferret. Retrieved 26 October 2019.
    4. Masiero, Joseph R.; Mainzer, A. K.; Grav, T.; Bauer, J. M.; Cutri, R. M.; Dailey, J.; et al. (November 2011). "Main Belt Asteroids with WISE/NEOWISE. I. Preliminary Albedos and Diameters". The Astrophysical Journal. 741 (2): 20. arXiv:1109.4096. Bibcode:2011ApJ...741...68M. doi:10.1088/0004-637X/741/2/68.
    5. 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.
    6. "1141 Bohmia (1930 AA)". Minor Planet Center. Retrieved 7 January 2018.
    7. Nesvorný, D.; Broz, M.; Carruba, V. (December 2014). Identification and Dynamical Properties of Asteroid Families. Asteroids IV. pp. 297–321. arXiv:1502.01628. Bibcode:2015aste.book..297N. doi:10.2458/azu_uapress_9780816532131-ch016. ISBN 9780816532131.
    8. "LCDB Data for (1141) Bohmia". Asteroid Lightcurve Database (LCDB). Retrieved 7 January 2018.

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