938 Chlosinde

Last updated

938 Chlosinde
Discovery  [1]
Discovered by K. Reinmuth
Discovery site Heidelberg Obs.
Discovery date9 September 1920
Designations
(938) Chlosinde
Named after
Name picked from the almanac
Lahrer Hinkender Bote   [2]
A920 RC ·1948 RJ
1920 HQ
main-belt   [1] [3]  ·(outer)
Themis   [4] [5]
Orbital characteristics   [3]
Epoch 31 May 2020 (JD 2459000.5)
Uncertainty parameter 0
Observation arc 99.32 yr (36,278 d)
Aphelion 3.7644 AU
Perihelion 2.5322 AU
3.1483 AU
Eccentricity 0.1957
5.59 yr (2,040 d)
265.87°
0° 10m 35.04s / day
Inclination 2.6698°
119.07°
225.87°
Physical characteristics
Mean diameter
  • 23.70±1.62  km [6]
  • 26.79±2.5 km [7]
  • 33.466±0.164 km [8]
  • 0.069±0.029 [8]
  • 0.1178±0.025 [7]
  • 0.151±0.022 [6]
C (SDSS-MOC) [12]
11.3 [1] [3]

    938 Chlosinde ( prov. designation:A920 RCor1920 HQ) is a carbonaceous Themistian asteroid, approximately 33 kilometers (21 miles) in diameter, from the outer regions of the asteroid belt. It was discovered by astronomer Karl Reinmuth at the Heidelberg Observatory in southwest Germany on 9 September 1920. [1] The C-type asteroid has an ambiguous rotation period of 13.7 or 19.2 hours. It was named "Chlosinde", a common German female name unrelated to the discoverer's contemporaries, that was taken from the almanac Lahrer Hinkender Bote . [2]

    Contents

    Orbit and classification

    When applying the hierarchical clustering method to its proper orbital elements, Chlosinde is a core member of the Themis family ( 602 ), a very large family of carbonaceous asteroids, named after 24 Themis. [4] [5] [13] : 23  It orbits the Sun in the outer asteroid belt at a distance of 2.5–3.8  AU once every 5 years and 7 months (2,040 days; semi-major axis of 3.15 AU). Its orbit has an eccentricity of 0.20 and an inclination of 3° with respect to the ecliptic. [3] The body's observation arc begins at Heidelberg Observatory on 10 September 1920, the night after its official discovery observation. [1]

    Naming

    This minor planet was named "Chlosinde", after a female name picked from the Lahrer Hinkender Bote , published in Lahr, southern Germany. [2] [14] A Hinkender Bote (lit. "limping messenger") was a very popular almanac, especially in the alemannic-speaking region from the late 17th throughout the early 20th century. The calendar section contains feast days, the dates of important fairs and astronomical ephemerides. For 21 June, the calendar gives "Chlosinde" as the German name day analogue next to Albanus and Aloisius, the protestant and catholic entries in the calendar of saints, likely referring to Saint Alban and Aloysius Gonzaga. [15]

    Reinmuth's calendar names

    As with 22 other asteroids – starting with 913 Otila, and ending with 1144 Oda – Reinmuth selected names from this calendar due to his many asteroid discoveries that he had trouble thinking of proper names. These names are not related to the discoverer's contemporaries. Lutz Schmadel, the author of the Dictionary of Minor Planet Names learned about Reinmuth's source of inspiration from private communications with Dutch astronomer Ingrid van Houten-Groeneveld, who worked as a young astronomer at Heidelberg. [2]

    Physical characteristics

    In the SDSS-based taxonomy, Chlosinde is a carbonaceous C-type asteroid, [12] which agrees with the Themis family's overall spectral type. [13] : 23 

    Rotation period

    In August 2010, a rotational lightcurve of Chlosinde was obtained from photometric observations by Robert Stephens at the Santana Observatory ( 646 ) and Goat Mountain Astronomical Research Station ( G79 ) in California. Lightcurve analysis gave a rotation period of 19.204±0.006 hours with a low brightness variation of 0.16±0.03 magnitude, indicative of a rather spherical shape ( U=2 ). However the result is ambiguous with an alternative period solution of 13.72 hours. [11] In September 2010, Larry Owings determined at period of 13.702±0.003 hours with an amplitude of 0.12±0.01 magnitude at the Barnes Ridge Observatory in California ( U=2 ). [9]

    Diameter and albedo

    According to the survey carried out by the Japanese Akari satellite, the Infrared Astronomical Satellite IRAS, and the NEOWISE mission of NASA's Wide-field Infrared Survey Explorer, Chlosinde measures (23.70±1.62), (26.79±2.5) and (33.466±0.164) kilometers in diameter and its surface has an albedo of (0.151±0.022), (0.1178±0.025) and (0.069±0.029), respectively. [6] [7] [8]

    The Collaborative Asteroid Lightcurve Link derives an albedo of 0.0756 and a diameter of 26.56 km based on an absolute magnitude of 11.3. [10] Further published mean-diameters and albedos by the WISE team include (27.255±6.661 km), (33.97±0.32 km), and (36.146±0.366 km) with corresponding albedos of (0.0565±0.0310), (0.046±0.009), and (0.0647±0.0112). [5] [10]

    Related Research Articles

    913 Otila is a bright Flora asteroid from the inner regions of the asteroid belt. It was discovered by German astronomer Karl Reinmuth at the Heidelberg Observatory on 19 May 1919. The stony S-type asteroid has a short rotation period of 4.9 hours and measures approximately 12 kilometers in diameter. It was named after a common German female name unrelated to the discoverer's contemporaries, that was taken from the almanac Lahrer Hinkender Bote.

    <span class="mw-page-title-main">918 Itha</span> Main-belt asteroid

    918 Itha is a stony asteroid and the namesake as well as the principal body of the Itha family, located in the outer region of the asteroid belt. It was discovered by German astronomer Karl Reinmuth at the Heidelberg Observatory on 22 August 1919. The S-type asteroid has a notably short rotation period of only 3.5 hours and measures approximately 21 kilometers in diameter. It was named "Itha", a female name taken from the almanac Lahrer Hinkender Bote, unrelated to the discoverer's contemporaries.

    <span class="mw-page-title-main">920 Rogeria</span>

    920 Rogeria is a dark background asteroid from the central region of the asteroid belt, discovered by German astronomer Karl Reinmuth at the Heidelberg-Königstuhl State Observatory on 1 September 1919. The D-type asteroid (DT) has a rotation period of 12.2 hours and measures approximately 26 kilometers in diameter. It was named "Rogeria", a name unrelated to the discoverer's contemporaries, that was taken from the almanac Lahrer Hinkender Bote.

    921 Jovita is a dark background asteroid, approximately 58 kilometers in diameter, located in the outer regions of the asteroid belt. It was discovered on 4 September 1919, by astronomer Karl Reinmuth at the Heidelberg-Königstuhl State Observatory in southwest Germany. The carbonaceous C-type asteroid (Ch) has a rotation period of 15.6 hours and is likely spherical in shape. It was named "Jovita", a common German female name unrelated to the discoverer's contemporaries, that was taken from the almanac Lahrer Hinkender Bote.

    923 Herluga is a three-body resonant background asteroid, approximately 34 kilometers in diameter, located in the central region of the asteroid belt. It was discovered on 30 September 1919, by astronomer Karl Reinmuth at the Heidelberg Observatory in southwest Germany. The carbonaceous C-type asteroid has a rotation period of 19.7 hours. It was named "Herluga", a common German female name unrelated to the discoverer's contemporaries, that was taken from the almanac Lahrer Hinkender Bote.

    924 Toni is a large background asteroid, approximately 80 kilometers in diameter, from the outer regions of the asteroid belt. It was discovered on 20 October 1919, by German astronomer Karl Reinmuth at the Heidelberg-Königstuhl State Observatory. The X-type asteroid has a rotation period of 19.4 hours. It was named "Toni", a common German female name unrelated to the discoverer's contemporaries, that was taken from the almanac Lahrer Hinkender Bote.

    926 Imhilde is a dark asteroid and the principal body and namesake of the Imhilde family, located in the outer regions of the asteroid belt. It was discovered by astronomer Karl Reinmuth at the Heidelberg Observatory in southwest Germany on 15 February 1920. The carbonaceous C-type asteroid has a rotation period of 26.8 hours and measures approximately 48 kilometers in diameter. It was named "Imhilde", a common German female name unrelated to the discoverer's contemporaries, that was taken from the almanac Lahrer Hinkender Bote.

    <span class="mw-page-title-main">928 Hildrun</span>

    928 Hildrun, is a dark background asteroid, approximately 64 kilometers in diameter, located in the outer region of the asteroid belt. It was discovered on 23 February 1920, by astronomer Karl Reinmuth at the Heidelberg-Königstuhl State Observatory in southwest Germany. The X-type asteroid has a rotation period of 14.1 hours. It was named "Hildrun", a common German female name unrelated to the discoverer's contemporaries, that was taken from the almanac Lahrer Hinkender Bote.

    929 Algunde, is a stony Flora asteroid from the inner regions of the asteroid belt, that measures approximately 11 kilometers in diameter. It was discovered by German astronomer Karl Reinmuth at the Heidelberg-Königstuhl State Observatory on 10 March 1920. The S-type asteroid has a short rotation period of 3.3 hours and is likely spherical in shape. It was named "Algunde", a common German female name unrelated to the discoverer's contemporaries, that was taken from the almanac Lahrer Hinkender Bote.

    931 Whittemora is a metallic background asteroid, approximately 46 kilometers in diameter, located in the outer region of the asteroid belt. It was discovered by French astronomer François Gonnessiat at the Algiers Observatory in North Africa on 19 March 1920. The M-type asteroid has a rotation period of 19.2 hours. It was named after American archaeologist Thomas Whittemore (1871–1950).

    <span class="mw-page-title-main">936 Kunigunde</span>

    936 Kunigunde is a dark Themistian asteroid from the outer regions of the asteroid belt, approximately 40 kilometers in diameter. It was discovered on 8 September 1920, by German astronomer Karl Reinmuth at the Heidelberg-Königstuhl State Observatory. The carbonaceous B-type asteroid has a rotation period of 9.4 hours. It was named "Kunigunde", a common German female name unrelated to the discoverer's contemporaries, that was taken from the almanac Lahrer Hinkender Bote.

    940 Kordula is a large and dark Cybele asteroid from the outermost region of the asteroid belt, approximately 80 kilometers in diameter. It was discovered on 10 October 1920, by astronomer Karl Reinmuth at the Heidelberg-Königstuhl State Observatory in Germany. The carbonaceous F-type asteroid (FC) has a rotation period of 15.6 hours. It was named "Kordula", a common German female name unrelated to the discoverer's contemporaries, that was taken from the almanac Lahrer Hinkender Bote.

    942 Romilda is a background asteroid, approximately 36 kilometers in diameter, located in the outer region of the asteroid belt. It was discovered by German astronomer Karl Reinmuth at the Heidelberg Observatory on 11 October 1920. The assumed C-type asteroid has a rotation period of 6.97 hours. It was named "Romilda", a common German female name unrelated to the discoverer's contemporaries, that was taken from the almanac Lahrer Hinkender Bote.

    <span class="mw-page-title-main">943 Begonia</span>

    943 Begonia is a large, carbonaceous background asteroid, approximately 70 kilometers in diameter, from the outer region of the asteroid belt. It was discovered by German astronomer Karl Reinmuth at the Heidelberg Observatory on 20 October 1920 and given the provisional designations A920 UA and 1920 HX. The dark C-type asteroid (Ch) has a rotation period of 15.7 hours. It was named after the genus of popular houseplants, Begonia.

    948 Jucunda is a background asteroid, approximately 17 kilometers in diameter, located in the outer region of the asteroid belt. It was discovered on 3 March 1921, by astronomer Karl Reinmuth at the Heidelberg-Königstuhl State Observatory in southwest Germany. The asteroid has a longer-than average rotation period of 26.2 hours. It was named after a common German female name, unrelated to the discoverer's contemporaries, that was taken from the almanac Lahrer Hinkender Bote.

    <span class="mw-page-title-main">983 Gunila</span> Main-belt asteroid

    983 Gunila, is a dark background asteroid from the outer regions of the asteroid belt, approximately 74 kilometers in diameter. It was discovered on 30 July 1922, by astronomer Karl Reinmuth at the Heidelberg-Königstuhl State Observatory in Germany. The X-type asteroid has an ambiguous rotation period of 8.3 or 16.6 hours. It was named "Gunila", a common German female name unrelated to the discoverer's contemporaries, that was taken from the almanac Lahrer Hinkender Bote.

    987 Wallia is a large background asteroid from the outer regions of the asteroid belt, approximately 52 kilometers in diameter. It was discovered on 23 October 1922, by astronomer Karl Reinmuth at the Heidelberg Observatory in southern Germany. The D/T-type asteroid has a rotation period of 10.1 hours and shows an unusual trinomial lightcurve. It was named after a common German female name, unrelated to the discoverer's contemporaries, and taken from the almanac Lahrer Hinkender Bote.

    <span class="mw-page-title-main">994 Otthild</span>

    994 Otthild is a stony background asteroid from the central regions of the asteroid belt, approximately 24 kilometers in diameter. It was discovered on 18 March 1923, by astronomer Karl Reinmuth at the Heidelberg-Königstuhl State Observatory. The S-type asteroid has a rotation period of 5.95 hours and is rather regular in shape. It was named after a common German female name, unrelated to the discoverer's contemporaries, and taken from the almanac Lahrer Hinkender Bote.

    1815 Beethoven, provisional designation 1932 CE1, is a carbonaceous background asteroid from the outer regions of the asteroid belt, approximately 30 kilometers (19 miles) in diameter. It was discovered on 27 January 1932, by German astronomer Karl Reinmuth at the Heidelberg Observatory. The uncommon F-type asteroid seems to have a long rotation period of 54 hours (tentative). It was named after Ludwig van Beethoven.

    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 "938 Chlosinde (A920 RC)". Minor Planet Center. Retrieved 16 February 2020.
    2. 1 2 3 4 Schmadel, Lutz D. (2007). "(938) Chlosinde". Dictionary of Minor Planet Names . Springer Berlin Heidelberg. p.  83. doi:10.1007/978-3-540-29925-7_939. ISBN   978-3-540-00238-3.
    3. 1 2 3 4 "JPL Small-Body Database Browser: 938 Chlosinde (A920 RC)" (2020-01-07 last obs.). Jet Propulsion Laboratory . Retrieved 16 February 2020.
    4. 1 2 "Asteroid 938 Chlosinde – Proper Elements". AstDyS-2, Asteroids – Dynamic Site. Retrieved 16 February 2020.
    5. 1 2 3 "Asteroid 938 Chlosinde". Small Bodies Data Ferret. Retrieved 16 February 2020.
    6. 1 2 3 Usui, Fumihiko; Kuroda, Daisuke; Müller, Thomas G.; Hasegawa, Sunao; Ishiguro, Masateru; Ootsubo, Takafumi; et al. (October 2011). "Asteroid Catalog Using Akari: AKARI/IRC Mid-Infrared Asteroid Survey". Publications of the Astronomical Society of Japan. 63 (5): 1117–1138. Bibcode:2011PASJ...63.1117U. doi: 10.1093/pasj/63.5.1117 . (online, AcuA catalog p. 153)
    7. 1 2 3 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 16 February 2020.
    8. 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.
    9. 1 2 Owings, Larry E. (July 2011). "Lightcurves for 938 Cholsinde, 1342 Brabantia, 2715 Mielikki, and 3252 Johnny" (PDF). The Minor Planet Bulletin. 38 (3): 141. Bibcode:2011MPBu...38..141O.
    10. 1 2 3 4 "LCDB Data for (938) Chlosinde". Asteroid Lightcurve Database (LCDB). Retrieved 16 February 2020.
    11. 1 2 Stephens, Robert D. (January 2011). "Asteroids Observed from GMARS and Santana Observatories: 2010 July - September" (PDF). The Minor Planet Bulletin. 38 (1): 23–24. Bibcode:2011MPBu...38...23S.
    12. 1 2 Carvano, J. M.; Hasselmann, P. H.; Lazzaro, D.; Mothé-Diniz, T. (February 2010). "SDSS-based taxonomic classification and orbital distribution of main belt asteroids". Astronomy and Astrophysics. 510: 12. Bibcode:2010A&A...510A..43C. doi: 10.1051/0004-6361/200913322 . Retrieved 30 October 2019. (PDS data set)
    13. 1 2 Nesvorný, D.; Broz, M.; Carruba, V. (December 2014). "Identification and Dynamical Properties of Asteroid Families". Asteroids IV: 297–321. arXiv: 1502.01628 . Bibcode:2015aste.book..297N. doi:10.2458/azu_uapress_9780816532131-ch016.
    14. ↑ "Lahrer hinkender Bote – Kalender 1925". Badischen Landesbibliothek. 1925. p. 1. Retrieved 16 February 2020. Lahrer Bote index
    15. ↑ "Lahrer hinkender Bote – Kalender 1925". Badischen Landesbibliothek. 1925. p. 12. Retrieved 10 February 2020.
    This page is based on this Wikipedia article
    Text is available under the CC BY-SA 4.0 license; additional terms may apply.
    Images, videos and audio are available under their respective licenses.