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1388 Aphrodite

December 15, 2023

1388 Aphrodite (prov. designation: 1935 SS) is an asteroid of the Eos family from the outer regions of the asteroid belt, approximately 22 kilometers (14 miles) in diameter. It was discovered on 24 September 1935, by Belgian astronomer Eugène Delporte at the Royal Observatory of Belgium in Uccle.[1] The likely elongated K-type asteroid has a rotation period of 11.9 hours.[7] It was named after the Greek goddess Aphrodite from Greek mythology.[3]

1388 Aphrodite
Shape model of Aphrodite from its lightcurve
Discovery[1]
Discovered byE. Delporte
Discovery siteUccle Obs.
Discovery date24 September 1935
Designations
(1388) Aphrodite
Pronunciation/æfroʊˈdaɪtiː/[2]
Named after
Aphrodite[3]
(Greek goddess)
1935 SS · A914 TC
main-belt[1][4] · (outer)
Eos[5][6][7]
AdjectivesAphrodisian /æfroʊˈdɪziən/[8]
Orbital characteristics[4]
Epoch 27 April 2019 (JD 2458600.5)
Uncertainty parameter 0
Observation arc83.08 yr (30,344 d)
Aphelion3.2896 AU
Perihelion2.7485 AU
3.0190 AU
Eccentricity0.0896
5.25 yr (1,916 d)
35.092°
0° 11m 16.44s / day
Inclination11.192°
54.359°
257.03°
Physical characteristics
Mean diameter
21.355±0.282 km[9][10]
21.636±0.079 km[11]
23.00±0.48 km[12]
23.17±0.55 km[13]
25.22±2.8 km[14]
11.9432±0.0004 h[15]
0.1317[14]
0.144[13]
0.152[12]
0.1801[11]
0.184[9]
K (family-based)[16]
B–V = 0.860[5]
U–B = 0.490[5]
10.81[9][11][14]
10.9[1][4][7][12][13]

Orbit and classification edit

Aphrodite is a core member of the Eos family (606),[5][6] the largest asteroid family in the outer main belt consisting of nearly 10,000 asteroids.[16] It orbits the Sun at a distance of 2.7–3.3 AU once every 5 years and 3 months (1,916 days; semi-major axis of 3.02 AU). Its orbit has an eccentricity of 0.09 and an inclination of 11° with respect to the ecliptic.[4] The body's observation arc begins at Johannesburg Observatory in September 1939, just four nights after its official discovery observation at Uccle.[1]

Naming edit

This minor planet was named from Greek mythology after Aphrodite, the Greek goddess of love, beauty, and sexuality, and daughter of Zeus and the Titaness Dione. The asteroid's name was proposed by the German Astronomisches Rechen-Institut (RI 1702). The official naming citation was mentioned in The Names of the Minor Planets by Paul Herget in 1955 (H 126).[3]

Physical characteristics edit

While the asteroid's spectral type is unknown,[5] Aphrodite, with a geometric albedo of around 0.15 (see asteroid-family list), is likely a K-type asteroid, which is typically associated with members of the Eos family.[16]

Rotation period and poles edit

In May 2007, a rotational lightcurve of Aphrodite was obtained from photometric observations by Julian Oey at the Kingsgrove Observatory (E19) in Australia in collaboration with other observatories. Lightcurve analysis gave a well-defined rotation period of 11.9432±0.0004 hours and a brightness variation of 0.65 magnitude (U=3), indicative for an elongated, non-spherical shape.[15] Alternative period determinations by Alvaro Alvarez-Candal (9 h; Δ 0.4 mag) in 2004,[17] René Roy (11.88 h; Δ 0.34 mag) in 2006,[18] and Kevin Ivarsen (11.95 h; Δ 0.35 mag) in 2003,[19] received a lower rating (U=2/2+/2).[7]

A modeled lightcurve using photometry obtained from public databases and through a large collaboration network as well as sparse-in-time individual measurements from a few sky surveys was published in 2016 and 2018.[7][20] Most recent results gave a concurring sidereal period of 11.94389±0.00002 hours, as well as two spin axes at (325.0°, 35.0°) and (137.0°, 66.0°) in ecliptic coordinates (λ, β).[20]

Diameter and albedo edit

According to the surveys carried out by the Infrared Astronomical Satellite IRAS, the Japanese Akari satellite and the NEOWISE mission of NASA's Wide-field Infrared Survey Explorer, Aphrodite measures between 21.4 and 25.2 kilometers in diameter and its surface has an albedo between 0.13 and 0.18.[9][10][11][12][13][14] The Collaborative Asteroid Lightcurve Link derives an albedo of 0.1217 and a diameter of 25.17 kilometers based on an absolute magnitude of 10.9.[7]

References edit

  1. ^ a b c d e "1388 Aphrodite (1935 SS)". Minor Planet Center. Retrieved 12 December 2018.
  2. ^ "Aphrodite". Oxford English Dictionary (Online ed.). Oxford University Press. (Subscription or participating institution membership required.)
  3. ^ a b c Schmadel, Lutz D. (2007). "(1388) Aphrodite". Dictionary of Minor Planet Names. Springer Berlin Heidelberg. p. 112. doi:10.1007/978-3-540-29925-7_1389. ISBN 978-3-540-00238-3.
  4. ^ a b c d "JPL Small-Body Database Browser: 1388 Aphrodite (1935 SS)" (2018-10-22 last obs.). Jet Propulsion Laboratory. Retrieved 12 December 2018.
  5. ^ a b c d e "Asteroid 1388 Aphrodite". Small Bodies Data Ferret. Retrieved 12 December 2018.
  6. ^ a b "Asteroid (1388) Aphrodite – Proper elements". AstDyS-2, Asteroids – Dynamic Site. Retrieved 11 December 2018.
  7. ^ a b c d e f "LCDB Data for (1388) Aphrodite". Asteroid Lightcurve Database (LCDB). Retrieved 12 December 2018.
  8. ^ "aphrodisian". Oxford English Dictionary (Online ed.). Oxford University Press. (Subscription or participating institution membership required.)
  9. ^ a b c d Mainzer, A. K.; Bauer, J. M.; Cutri, R. M.; Grav, T.; Kramer, E. A.; Masiero, J. R.; et al. (June 2016). "NEOWISE Diameters and Albedos V1.0". NASA Planetary Data System: EAR–A–COMPIL–5–NEOWISEDIAM–V1.0. Bibcode:2016PDSS..247.....M. Retrieved 12 December 2018.
  10. ^ a b 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. S2CID 119293330.
  11. ^ a b c d Mainzer, A.; Grav, T.; Masiero, J.; Hand, E.; Bauer, J.; Tholen, D.; et al. (November 2011). "NEOWISE Studies of Spectrophotometrically Classified Asteroids: Preliminary Results". The Astrophysical Journal. 741 (2): 25. arXiv:1109.6407. Bibcode:2011ApJ...741...90M. doi:10.1088/0004-637X/741/2/90. S2CID 35447010. (catalog)
  12. ^ a b c d 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)
  13. ^ a b c d 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. S2CID 46350317.
  14. ^ a b c d Tedesco, E. F.; Noah, P. V.; Noah, M.; Price, S. D. (October 2004). "IRAS Minor Planet Survey V6.0". NASA Planetary Data System – IRAS-A-FPA-3-RDR-IMPS-V6.0: IRAS–A–FPA–3–RDR–IMPS–V6.0. Bibcode:2004PDSS...12.....T. Retrieved 12 December 2018.
  15. ^ a b Oey, Julian; Krajewski, Ric (June 2008). "Lightcurve Analysis of Asteroids from Kingsgrove and Other Collaborating Observatories in the First Half of 2007". The Minor Planet Bulletin. 35 (2): 47–48. Bibcode:2008MPBu...35...47O. ISSN 1052-8091.
  16. ^ a b c 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. S2CID 119280014.
  17. ^ Alvarez-Candal, Alvaro; Duffard, René; Angeli, Cláudia A.; Lazzaro, Daniela; Fernández, Silvia (December 2004). "Rotational lightcurves of asteroids belonging to families". Icarus. 172 (2): 388–401. Bibcode:2004Icar..172..388A. doi:10.1016/j.icarus.2004.06.008.
  18. ^ Behrend, Raoul. "Asteroids and comets rotation curves – (1388) Aphrodite". Geneva Observatory. Retrieved 12 December 2018.
  19. ^ Ivarsen, Kevin; Willis, Sarah; Ingleby, Laura; Matthews, Dan; Simet, Melanie (June 2004). "CCD observations and period determination of fifteen minor planets". The Minor Planet Bulletin. 31 (2): 29–33. Bibcode:2004MPBu...31...29I. ISSN 1052-8091.
  20. ^ a b Hanus, J.; Delbo', M.; Alí-Lagoa, V.; Bolin, B.; Jedicke, R.; Durech, J.; et al. (January 2018). "Spin states of asteroids in the Eos collisional family". Icarus. 299: 84–96. arXiv:1707.05507. Bibcode:2018Icar..299...84H. doi:10.1016/j.icarus.2017.07.007. S2CID 118855039.

External links edit

  • Lightcurve Database Query (LCDB), at www.minorplanet.info
  • Dictionary of Minor Planet Names, Google books
  • Asteroids and comets rotation curves, CdR – Geneva Observatory, Raoul Behrend
  • Discovery Circumstances: Numbered Minor Planets (1)-(5000) – Minor Planet Center
  • 1388 Aphrodite at AstDyS-2, Asteroids—Dynamic Site
    • Ephemeris · Observation prediction · Orbital info · Proper elements · Observational info
  • 1388 Aphrodite at the JPL Small-Body Database  
    • Close approach · Discovery · Ephemeris · Orbit diagram · Orbital elements · Physical parameters

December 15, 2023
1388, aphrodite, prov, designation, 1935, asteroid, family, from, outer, regions, asteroid, belt, approximately, kilometers, miles, diameter, discovered, september, 1935, belgian, astronomer, eugène, delporte, royal, observatory, belgium, uccle, likely, elonga. 1388 Aphrodite prov designation 1935 SS is an asteroid of the Eos family from the outer regions of the asteroid belt approximately 22 kilometers 14 miles in diameter It was discovered on 24 September 1935 by Belgian astronomer Eugene Delporte at the Royal Observatory of Belgium in Uccle 1 The likely elongated K type asteroid has a rotation period of 11 9 hours 7 It was named after the Greek goddess Aphrodite from Greek mythology 3 1388 AphroditeShape model of Aphrodite from its lightcurveDiscovery 1 Discovered byE DelporteDiscovery siteUccle Obs Discovery date24 September 1935DesignationsMPC designation 1388 AphroditePronunciation ae f r oʊ ˈ d aɪ t iː 2 Named afterAphrodite 3 Greek goddess Alternative designations1935 SS A914 TCMinor planet categorymain belt 1 4 outer Eos 5 6 7 AdjectivesAphrodisian ae f r oʊ ˈ d ɪ z i e n 8 Orbital characteristics 4 Epoch 27 April 2019 JD 2458600 5 Uncertainty parameter 0Observation arc83 08 yr 30 344 d Aphelion3 2896 AUPerihelion2 7485 AUSemi major axis3 0190 AUEccentricity0 0896Orbital period sidereal 5 25 yr 1 916 d Mean anomaly35 092 Mean motion0 11m 16 44s dayInclination11 192 Longitude of ascending node54 359 Argument of perihelion257 03 Physical characteristicsMean diameter21 355 0 282 km 9 10 21 636 0 079 km 11 23 00 0 48 km 12 23 17 0 55 km 13 25 22 2 8 km 14 Synodic rotation period11 9432 0 0004 h 15 Geometric albedo0 1317 14 0 144 13 0 152 12 0 1801 11 0 184 9 Spectral typeK family based 16 B V 0 860 5 U B 0 490 5 Absolute magnitude H 10 81 9 11 14 10 9 1 4 7 12 13 Contents 1 Orbit and classification 2 Naming 3 Physical characteristics 3 1 Rotation period and poles 3 2 Diameter and albedo 4 References 5 External linksOrbit and classification editAphrodite is a core member of the Eos family 606 5 6 the largest asteroid family in the outer main belt consisting of nearly 10 000 asteroids 16 It orbits the Sun at a distance of 2 7 3 3 AU once every 5 years and 3 months 1 916 days semi major axis of 3 02 AU Its orbit has an eccentricity of 0 09 and an inclination of 11 with respect to the ecliptic 4 The body s observation arc begins at Johannesburg Observatory in September 1939 just four nights after its official discovery observation at Uccle 1 Naming editThis minor planet was named from Greek mythology after Aphrodite the Greek goddess of love beauty and sexuality and daughter of Zeus and the Titaness Dione The asteroid s name was proposed by the German Astronomisches Rechen Institut RI 1702 The official naming citation was mentioned in The Names of the Minor Planets by Paul Herget in 1955 H 126 3 Physical characteristics editWhile the asteroid s spectral type is unknown 5 Aphrodite with a geometric albedo of around 0 15 see asteroid family list is likely a K type asteroid which is typically associated with members of the Eos family 16 Rotation period and poles edit In May 2007 a rotational lightcurve of Aphrodite was obtained from photometric observations by Julian Oey at the Kingsgrove Observatory E19 in Australia in collaboration with other observatories Lightcurve analysis gave a well defined rotation period of 11 9432 0 0004 hours and a brightness variation of 0 65 magnitude U 3 indicative for an elongated non spherical shape 15 Alternative period determinations by Alvaro Alvarez Candal 9 h D 0 4 mag in 2004 17 Rene Roy 11 88 h D 0 34 mag in 2006 18 and Kevin Ivarsen 11 95 h D 0 35 mag in 2003 19 received a lower rating U 2 2 2 7 A modeled lightcurve using photometry obtained from public databases and through a large collaboration network as well as sparse in time individual measurements from a few sky surveys was published in 2016 and 2018 7 20 Most recent results gave a concurring sidereal period of 11 94389 0 00002 hours as well as two spin axes at 325 0 35 0 and 137 0 66 0 in ecliptic coordinates l b 20 Diameter and albedo edit According to the surveys carried out by the Infrared Astronomical Satellite IRAS the Japanese Akari satellite and the NEOWISE mission of NASA s Wide field Infrared Survey Explorer Aphrodite measures between 21 4 and 25 2 kilometers in diameter and its surface has an albedo between 0 13 and 0 18 9 10 11 12 13 14 The Collaborative Asteroid Lightcurve Link derives an albedo of 0 1217 and a diameter of 25 17 kilometers based on an absolute magnitude of 10 9 7 References edit a b c d e 1388 Aphrodite 1935 SS Minor Planet Center Retrieved 12 December 2018 Aphrodite Oxford English Dictionary Online ed Oxford University Press Subscription or participating institution membership required a b c Schmadel Lutz D 2007 1388 Aphrodite Dictionary of Minor Planet Names Springer Berlin Heidelberg p 112 doi 10 1007 978 3 540 29925 7 1389 ISBN 978 3 540 00238 3 a b c d JPL Small Body Database Browser 1388 Aphrodite 1935 SS 2018 10 22 last obs Jet Propulsion Laboratory Retrieved 12 December 2018 a b c d e Asteroid 1388 Aphrodite Small Bodies Data Ferret Retrieved 12 December 2018 a b Asteroid 1388 Aphrodite Proper elements AstDyS 2 Asteroids Dynamic Site Retrieved 11 December 2018 a b c d e f LCDB Data for 1388 Aphrodite Asteroid Lightcurve Database LCDB Retrieved 12 December 2018 aphrodisian Oxford English Dictionary Online ed Oxford University Press Subscription or participating institution membership required a b c d Mainzer A K Bauer J M Cutri R M Grav T Kramer E A Masiero J R et al June 2016 NEOWISE Diameters and Albedos V1 0 NASA Planetary Data System EAR A COMPIL 5 NEOWISEDIAM V1 0 Bibcode 2016PDSS 247 M Retrieved 12 December 2018 a b 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 S2CID 119293330 a b c d Mainzer A Grav T Masiero J Hand E Bauer J Tholen D et al November 2011 NEOWISE Studies of Spectrophotometrically Classified Asteroids Preliminary Results The Astrophysical Journal 741 2 25 arXiv 1109 6407 Bibcode 2011ApJ 741 90M doi 10 1088 0004 637X 741 2 90 S2CID 35447010 catalog a b c d Usui Fumihiko Kuroda Daisuke Muller 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 a b c d 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 S2CID 46350317 a b c d Tedesco E F Noah P V Noah M Price S D October 2004 IRAS Minor Planet Survey V6 0 NASA Planetary Data System IRAS A FPA 3 RDR IMPS V6 0 IRAS A FPA 3 RDR IMPS V6 0 Bibcode 2004PDSS 12 T Retrieved 12 December 2018 a b Oey Julian Krajewski Ric June 2008 Lightcurve Analysis of Asteroids from Kingsgrove and Other Collaborating Observatories in the First Half of 2007 The Minor Planet Bulletin 35 2 47 48 Bibcode 2008MPBu 35 47O ISSN 1052 8091 a b c Nesvorny 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 S2CID 119280014 Alvarez Candal Alvaro Duffard Rene Angeli Claudia A Lazzaro Daniela Fernandez Silvia December 2004 Rotational lightcurves of asteroids belonging to families Icarus 172 2 388 401 Bibcode 2004Icar 172 388A doi 10 1016 j icarus 2004 06 008 Behrend Raoul Asteroids and comets rotation curves 1388 Aphrodite Geneva Observatory Retrieved 12 December 2018 Ivarsen Kevin Willis Sarah Ingleby Laura Matthews Dan Simet Melanie June 2004 CCD observations and period determination of fifteen minor planets The Minor Planet Bulletin 31 2 29 33 Bibcode 2004MPBu 31 29I ISSN 1052 8091 a b Hanus J Delbo M Ali Lagoa V Bolin B Jedicke R Durech J et al January 2018 Spin states of asteroids in the Eos collisional family Icarus 299 84 96 arXiv 1707 05507 Bibcode 2018Icar 299 84H doi 10 1016 j icarus 2017 07 007 S2CID 118855039 External links editLightcurve Database Query LCDB at www minorplanet info Dictionary of Minor Planet Names Google books Asteroids and comets rotation curves CdR Geneva Observatory Raoul Behrend Discovery Circumstances Numbered Minor Planets 1 5000 Minor Planet Center 1388 Aphrodite at AstDyS 2 Asteroids Dynamic Site Ephemeris Observation prediction Orbital info Proper elements Observational info 1388 Aphrodite at the JPL Small Body Database nbsp Close approach Discovery Ephemeris Orbit diagram Orbital elements Physical parameters Retrieved from https en wikipedia org w index php title 1388 Aphrodite amp oldid 1173479380, wikipedia, wiki, book, books, library,

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