1410 Margret

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1410 Margret
Discovery [1]
Discovered by K. Reinmuth
Discovery site Heidelberg Obs.
Discovery date8 January 1937
Designations
(1410) Margret
Named after
Margret Braun [2]
(wife of Heinrich Vogt)
1937 AL ·A924 RD
main-belt  ·(outer)
Eos [3]
Orbital characteristics [1]
Epoch 4 September 2017 (JD 2458000.5)
Uncertainty parameter 0
Observation arc 80.73 yr (29,485 days)
Aphelion 3.3373 AU
Perihelion 2.7030 AU
3.0202 AU
Eccentricity 0.1050
5.25 yr (1,917 days)
209.01°
0° 11m 16.08s / day
Inclination 10.352°
170.92°
233.32°
Physical characteristics
Dimensions21.083±0.083 km [4]
0.145±0.014 [4]
11.1 [1]

    1410 Margret, provisional designation 1937 AL, is an Eoan asteroid from the outer regions of the asteroid belt, approximately 21 kilometers in diameter. It was discovered on 8 January 1937, by astronomer Karl Reinmuth at the Heidelberg Observatory in southwest Germany. [5] The asteroid was named after Margret Braun, wife of the Heidelberg astronomer Heinrich Vogt. [2]

    Contents

    Orbit and classification

    Margret is a member of the Eos family ( 606 ), [3] the largest asteroid family in the outer main belt consisting of nearly 10,000 asteroids. [6] : 23 

    It orbits the Sun at a distance of 2.7–3.3  AU once every 5 years and 3 months (1,917 days). Its orbit has an eccentricity of 0.11 and an inclination of 10° with respect to the ecliptic. [1]

    The body's observation arc begins with its first identification as A924 RD at Simeiz Observatory in September 1924, more than 12 years prior to its official discovery observation at Heidelberg. [5]

    Physical characteristics

    The asteroid's spectral type is unknown. [1] The Eos family typically consists of K-type asteroids. [6] : 23 

    Diameter and albedo

    According to the survey carried out by the NEOWISE mission of NASA's Wide-field Infrared Survey Explorer, Margret measures 21.083 kilometers in diameter and its surface has an albedo of 0.145, [4] which agrees with the albedo of 0.14 measured for the parent body of the Eos family, 221 Eos.

    Rotation period

    As of 2017, no rotational lightcurve of Margret has been obtained from photometric observations. The asteroid's rotation period, spin axis and shape remain unknown. [7]

    Naming

    This minor planet was named after Margret Braun (died 1991), wife of the Heidelberg astronomer Heinrich Vogt (1890–1968), after whom 1439 Vogtia was named. The subsequently numbered asteroid 1411 Brauna is also named after Margret Braun. The official naming citation was mentioned in The Names of the Minor Planets by Paul Herget in 1955 ( H 127 ). [2]

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    References

    1. 1 2 3 4 5 "JPL Small-Body Database Browser: 1410 Margret (1937 AL)" (2017-09-30 last obs.). Jet Propulsion Laboratory . Retrieved 25 October 2017.
    2. 1 2 3 Schmadel, Lutz D. (2007). "(1410) Margret". Dictionary of Minor Planet Names. Springer Berlin Heidelberg. p. 114. doi:10.1007/978-3-540-29925-7_1411. ISBN   978-3-540-00238-3.
    3. 1 2 "Asteroid 1410 Margret – Nesvorny HCM Asteroid Families V3.0". Small Bodies Data Ferret. Retrieved 26 October 2019.
    4. 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 . Retrieved 25 October 2017.
    5. 1 2 "1410 Margret (1937 AL)". Minor Planet Center. Retrieved 25 October 2017.
    6. 1 2 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.
    7. ↑ "LCDB Data for (1410) Margret". Asteroid Lightcurve Database (LCDB). Retrieved 25 October 2017.
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