1247 Memoria

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1247 Memoria
Discovery [1]
Discovered by M. Laugier
Discovery site Uccle Obs.
Discovery date30 August 1932
Designations
(1247) Memoria
Pronunciation /mɪˈmɔːriə/ [2]
Named after
 memoria [3]
(Latin for memory; remembrance)
1932 QA ·1927 UL
1931 JU ·1936 FN
A905 WA
main-belt  ·(outer)
Themis [4]
Orbital characteristics [1]
Epoch 4 September 2017 (JD 2458000.5)
Uncertainty parameter 0
Observation arc 112.03 yr (40,920 days)
Aphelion 3.6792 AU
Perihelion 2.5851 AU
3.1321 AU
Eccentricity 0.1747
5.54 yr (2,025 days)
130.45°
0° 10m 40.08s / day
Inclination 1.7780°
161.73°
139.43°
Physical characteristics
Dimensions35.97±1.9 km [5]
38.906±0.174 km [6]
0.078±0.014 [7]
0.0846±0.009 [5]
Tholen = C X F [1]
B–V = 0.680 [1]
U–B = 0.290 [1]
10.52 [1]

    1247 Memoria, provisional designation 1932 QA, is a dark Themistian asteroid from the outer regions of the asteroid belt, approximately 37 kilometers in diameter. It was discovered by Marguerite Laugier at Uccle Observatory in 1932, who later named it Memoria in memory of her pleasant stay at the discovering observatory.

    Contents

    Discovery

    Memoria was discovered on 30 August 1932, by French astronomer Marguerite Laugier at the Royal Observatory of Belgium in Uccle. [8] On the same night, it was independently discovered by Soviet astronomer Grigory Neujmin at the Simeiz Observatory on the Crimean peninsula. One week later, on 6 September 1932, it was again independently discovered by German astronomer Karl Reinmuth at Heidelberg Observatory. [3] The Minor Planet Center only recognizes the first discoverer. [8]

    Orbit and classification

    Memoria belongs to the Themis family ( 602 ), a very large family of typically carbonaceous asteroids, named after 24 Themis. [4] [9] : 23  It orbits the Sun in the outer main-belt at a distance of 2.6–3.7  AU once every 5 years and 6 months (2,025 days; semi-major axis of 3.13 AU). Its orbit has an eccentricity of 0.17 and an inclination of 2° with respect to the ecliptic. [1]

    The asteroid was first observed as A905 WA at Heidelberg Observatory in November 1905. The body's observation arc begins as 1931 JU at Johannesburg Observatory in May 1931, or 15 months prior to its official discovery observation at Uccle. [8]

    Physical characteristics

    In the Tholen classification, Memoria's spectral type is ambiguous, closest to a carbonaceous C-type, and somewhat similar to an X- and F-type asteroid (CXF). [1] The overall spectral type for members of the Themis family is that of a C-type. [9] : 23 

    Rotation period

    As of 2018, no rotational lightcurve of Memoria has been obtained from photometric observations. The asteroid's rotation period, shape and poles remain unknown. [1] [10]

    Diameter and albedo

    According to the surveys carried out by the Infrared Astronomical Satellite IRAS and the NEOWISE mission of NASA's Wide-field Infrared Survey Explorer, Memoria measures 35.97 and 38.906 kilometers in diameter and its surface has an albedo of 0.0846 and 0.078, respectively. [6] [7]

    Naming

    This minor planet was named "memoria" (Latin for memory or remembrance) by the French discoverer Marguerite Laugier who remembered the pleasant relationships she had during her stay at the discovering Uccle Observatory, Belgium, in 1932. The official naming citation was mentioned in The Names of the Minor Planets by Paul Herget in 1955 ( H 115 ). [3]

    Related Research Articles

    Athalia, provisional designation 1903 ME, is a carbonaceous Themistian asteroid from the outer regions of the asteroid belt, approximately 40 kilometers in diameter. It was discovered on 20 September 1903, by German astronomer Max Wolf at the Heidelberg Observatory in southwest Germany. The asteroid was named after the ancient Judahite queen Athaliah.

    656 Beagle, provisional designation 1908 BU, is an asteroid from the outer regions of the asteroid belt, approximately 60 kilometers in diameter. It was discovered on 22 January 1908, by German astronomer August Kopff at the Heidelberg Observatory. It is the principal body and namesake of the small Beagle cluster located within the Themis family. The C-type asteroid is likely highly elongated and has a rotation period of 7.0 hours. It was named for Charles Darwin's ship, HMS Beagle.

    848 Inna is a carbonaceous Themistian asteroid from the outer regions of the asteroid belt. It was discovered on 5 September 1915, by astronomer Grigory Neujmin at the Simeiz Observatory on the Crimean peninsula. The C-type asteroid measures approximately 33 kilometers in diameter, while its rotation period remains unknown. It was named after Russian astronomer Inna Nikolaevna Leman-Balanovskaya (1881–1945).

    1168 Brandia, provisional designation 1930 QA, is a stony Eunomian asteroid from the central regions of the asteroid belt, approximately 10 kilometers in diameter. Discovered by astronomer Eugène Delporte at Uccle Observatory in 1930, the asteroid was later named after mathematician Eugène Brand.

    1581 Abanderada, provisional designation 1950 LA1, is a dark Themistian asteroid from the outer regions of the asteroid belt, approximately 35 kilometers in diameter. It was discovered on 15 June 1950, by Argentine astronomer Miguel Itzigsohn at the La Plata Astronomical Observatory in La Plata, Argentina. The asteroid was named after Eva Perón.

    <span class="mw-page-title-main">1286 Banachiewicza</span> Asteroid

    1286 Banachiewicza is an elongated Eos asteroid from the outer regions of the asteroid belt. It was discovered on 25 August 1933, by Belgian astronomer Sylvain Arend at the Royal Observatory of Belgium in Uccle. The stony S-type asteroid has a rotation period of 8.6 hours and measures approximately 21 kilometers in diameter. It was named after Polish astronomer Tadeusz Banachiewicz.

    1707 Chantal, provisional designation 1932 RL, is a stony background asteroid from the Florian region in the inner asteroid belt, approximately 7.5 kilometers in diameter. It was discovered on 8 September 1932, by astronomer Eugène Delporte at the Royal Observatory of Belgium in Uccle. The S-type asteroid has a rotation period of at least 10 hours. It was named for Chantal, the niece of Belgian astronomer Georges Roland.

    <span class="mw-page-title-main">1576 Fabiola</span> Asteroid

    1576 Fabiola, provisional designation 1948 SA, is a Themistian asteroid from the outer regions of the asteroid belt, approximately 27 kilometers in diameter. It was discovered on 30 September 1948, by Belgian astronomer Sylvain Arend at the Royal Observatory of Belgium in Uccle. The asteroid was named after Queen Fabiola of Belgium.

    1253 Frisia, provisional designation 1931 TV1, is a carbonaceous Themistian asteroid from the outer regions of the asteroid belt, approximately 20 kilometers in diameter. Discovered by Karl Reinmuth at Heidelberg Observatory in 1931, the asteroid was later named after the region of Frisia and the Frisian Islands.

    1199 Geldonia, provisional designation 1931 RF, is an Eoan asteroid from the outer regions of the asteroid belt, approximately 32 kilometers in diameter. It was discovered on 14 September 1931, by Belgian astronomer Eugène Delporte at the Royal Observatory of Belgium in Uccle. The asteroid was named after the Belgian town of Jodoigne.

    1261 Legia, provisional designation 1933 FB, is a dark Themistian asteroid from the outer regions of the asteroid belt, approximately 32 kilometers in diameter. It was discovered on 23 March 1933, by astronomer Eugène Delporte at the Royal Observatory of Belgium in Uccle. The asteroid was named for the Belgian city of Liège (Luke).

    <span class="mw-page-title-main">1361 Leuschneria</span>

    1361 Leuschneria, provisional designation 1935 QA, is a carbonaceous asteroid from the outer regions of the asteroid belt, approximately 30 kilometers in diameter. It was discovered on 30 August 1935, by Belgian astronomer Eugène Delporte at Uccle Observatory in Belgium, and named after American astronomer Armin Otto Leuschner.

    1755 Lorbach, provisional designation 1936 VD, is a stony Eoan asteroid from the outer region of the asteroid belt, approximately 25 kilometers in diameter.

    1287 Lorcia, provisional designation 1933 QL, is an Eoan asteroid from the outer regions of the asteroid belt, approximately 22 kilometers in diameter. It was discovered by Belgian astronomer Sylvain Arend at the Royal Observatory of Belgium in Uccle on 25 August 1933. The asteroid was named for Laura de Sołohub Dikyj, wife of Polish astronomer Tadeusz Banachiewicz.

    1238 Predappia, provisional designation 1932 CA, is a dark Adeonian asteroid from the central regions of the asteroid belt, approximately 21 kilometers in diameter. It was discovered on 4 February 1932, by astronomer Luigi Volta at the Observatory of Turin in Pino Torinese, Italy. It was later named after the Italian village of Predappio.

    1426 Riviera, provisional designation 1937 GF, is a bright asteroid from the central regions of the asteroid belt, approximately 16 kilometers in diameter. Discovered by Marguerite Laugier at the Nice Observatory in 1937, the asteroid was later named for the Côte d'Azur, also known as French Riviera.

    <span class="mw-page-title-main">1249 Rutherfordia</span> Asteroid

    1249 Rutherfordia, provisional designation 1932 VB, is an elongated, stony Florian asteroid from the inner regions of the asteroid belt, approximately 13 kilometers in diameter. Discovered by Karl Reinmuth at Heidelberg Observatory in 1932, the asteroid was named after Rutherford, New Jersey a suburb of New York City, United States.

    <span class="mw-page-title-main">2384 Schulhof</span> Asteroid

    2384 Schulhof (prov. designation: 1943 EC1) is a mid-sized asteroid and the namesake of the Schulhof family, located in the Eunomian region of the intermediate asteroid belt. It was discovered on 2 March 1943, by French astronomer Marguerite Laugier at Nice Observatory in southeastern France. The asteroid was later named after Hungarian astronomer Lipót Schulhof. The presumed S-type asteroid has a short rotation period of 3.3 hours and measures approximately 12 kilometers (7.5 miles) in diameter.

    <span class="mw-page-title-main">1276 Ucclia</span>

    1276 Ucclia is a carbonaceous Alauda asteroid from the outer region of the asteroid belt, approximately 31 kilometers in diameter. It was discovered on 24 January 1933 by Belgian astronomer Eugène Delporte at the Royal Observatory of Belgium in Uccle. Two nights later, the body was independently discovered by Richard Schorr at Bergedorf Observatory in Hamburg, Germany. It was named for the Belgium city of Uccle and its discovering observatory.

    1302 Werra, provisional designation 1924 SV, is a Themistian asteroid from the outer regions of the asteroid belt, approximately 30 kilometers in diameter. It was discovered on 28 September 1924, by German astronomer Karl Reinmuth at the Heidelberg-Königstuhl State Observatory. The asteroid was named for the river Werra in central Germany.

    References

    1. 1 2 3 4 5 6 7 8 9 "JPL Small-Body Database Browser: 1247 Memoria (1932 QA)" (2017-12-02 last obs.). Jet Propulsion Laboratory. Archived from the original on 18 September 2020. Retrieved 3 January 2018.
    2. ↑ "memoria technica" . Oxford English Dictionary (Online ed.). Oxford University Press.(Subscription or participating institution membership required.)
    3. 1 2 3 Schmadel, Lutz D. (2006). "(1247) Memoria". Dictionary of Minor Planet Names. Springer Berlin Heidelberg. p. 103. doi:10.1007/978-3-540-29925-7_1248. ISBN   978-3-540-00238-3.
    4. 1 2 "Asteroid 1247 Memoria – Nesvorny HCM Asteroid Families V3.0". Small Bodies Data Ferret. Retrieved 26 October 2019.
    5. 1 2 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.
    6. 1 2 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.
    7. 1 2 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 . Retrieved 3 January 2018.
    8. 1 2 3 "1247 Memoria (1932 QA)". Minor Planet Center. Retrieved 3 January 2018.
    9. 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.
    10. ↑ "LCDB Data for (1247) Memoria". Asteroid Lightcurve Database (LCDB). Retrieved 3 January 2018.
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