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1093 Freda

April 08, 2024

1093 Freda, provisional designation 1925 LA, is a carbonaceous asteroid from the outer regions of the asteroid belt's background population, approximately 110 kilometers in diameter. It was discovered on 15 June 1925, by astronomer Benjamin Jekhowsky at the Algiers Observatory in Algeria, North Africa.[12] The asteroid was named after French engineer Fred Prévost.[2]

1093 Freda
Discovery[1]
Discovered byB. Jekhovsky
Discovery siteAlgiers Obs.
Discovery date15 June 1925
Designations
(1093) Freda
Named after
Fred Prévost
(French engineer)[2]
1925 LA · A898 VE
main-belt · (outer)[3]
Orbital characteristics[1]
Epoch 4 September 2017 (JD 2458000.5)
Uncertainty parameter 0
Observation arc88.15 yr (32,198 days)
Aphelion3.9776 AU
Perihelion2.2809 AU
3.1293 AU
Eccentricity0.2711
5.54 yr (2,022 days)
175.72°
0° 10m 41.16s / day
Inclination25.215°
55.635°
251.42°
Physical characteristics
Dimensions88.01±27.85 km[4]
101.67±1.45 km[5]
116.73±2.9 km[6]
126.04±43.76 km[7]
10.73±0.05 h[8]
10.73±0.05 h[8]
19.67±0.01 h[9][a]
19.701±0.0148 h[10]
0.03±0.02[7]
0.0381±0.002[6]
0.051±0.002[5]
0.06±0.05[4]
Tholen = C[1][3]
B–V = 0.679[1]
U–B = 0.356[1]
8.49±0.42[11] · 8.83[1][3][5][6][7] · 8.88[4] · 8.882±0.001 (R)[10]

Orbit and classification edit

Freda is a non-family asteroid of the main belt's background population. It orbits the Sun in the outer main-belt at a distance of 2.3–4.0 AU once every 5 years and 6 months (2,022 days). Its orbit has an eccentricity of 0.27 and an inclination of 25° with respect to the ecliptic.[1]

In November 1998, the asteroid was first identified as A898 VE at the Boyden Station of the Harvard Observatory in Peru. The body's observation arc begins at Yerkes Observatory in February 1929, almost four years after its official discovery observation at Algiers.[12]

Physical characteristics edit

In the Tholen classification, Freda is a common carbonaceous C-type asteroid.[1][3]

Rotation period edit

Several rotational lightcurves of Freda were obtained from photometric observations by Brian Warner, Federico Manzini, and at the Palomar Transient Factory since 2007.[8][9][10] Best-rated lightcurve analysis gave a rotation period of 19.67 hours with a brightness amplitude of 0.21 magnitude (U=3).[9][a]

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, Freda measures between 88.01 and 126.04 kilometers in diameter and its surface has an albedo between 0.03 and 0.06.[4][5][6][7]

The Collaborative Asteroid Lightcurve Link adopts the results obtained by IRAS, that is, an albedo of 0.0381 and a diameter of 116.73 kilometers based on an absolute magnitude of 8.83.[3]

Naming edit

This minor planet was named after Fred Prévost, a French civil engineer of mines and benefactor of the Faculty of sciences of Bordeaux. The official naming citation was mentioned in The Names of the Minor Planets by Paul Herget in 1955 (H 103).[2]

Notes edit

  1. ^ a b Lightcurve plot of 1093 Freda, Palmer Divide Observatory, Brian D. Warner (2008). Summary figures for (1093) Freda at the LCDB

References edit

  1. ^ a b c d e f g h (2017-03-30 last obs.). Jet Propulsion Laboratory. Archived from the original on 18 September 2020. Retrieved 25 September 2017.
  2. ^ a b c Schmadel, Lutz D. (2007). "(1093) Freda". Dictionary of Minor Planet Names – (1093) Freda. Springer Berlin Heidelberg. p. 93. doi:10.1007/978-3-540-29925-7_1094. ISBN 978-3-540-00238-3.
  3. ^ a b c d e "LCDB Data for (1093) Freda". Asteroid Lightcurve Database (LCDB). Retrieved 25 September 2017.
  4. ^ a b c d Nugent, C. R.; Mainzer, A.; Bauer, J.; Cutri, R. M.; Kramer, E. A.; Grav, T.; et al. (September 2016). "NEOWISE Reactivation Mission Year Two: Asteroid Diameters and Albedos". The Astronomical Journal. 152 (3): 12. arXiv:1606.08923. Bibcode:2016AJ....152...63N. doi:10.3847/0004-6256/152/3/63.
  5. ^ 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)
  6. ^ 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. 12: IRAS-A-FPA-3-RDR-IMPS-V6.0. Bibcode:2004PDSS...12.....T. Retrieved 22 October 2019.
  7. ^ a b c d Nugent, C. R.; Mainzer, A.; Masiero, J.; Bauer, J.; Cutri, R. M.; Grav, T.; et al. (December 2015). "NEOWISE Reactivation Mission Year One: Preliminary Asteroid Diameters and Albedos". The Astrophysical Journal. 814 (2): 13. arXiv:1509.02522. Bibcode:2015ApJ...814..117N. doi:10.1088/0004-637X/814/2/117. S2CID 9341381. Retrieved 25 September 2017.
  8. ^ a b c Behrend, Raoul. "Asteroids and comets rotation curves – (1093) Freda". Geneva Observatory. Retrieved 25 September 2017.
  9. ^ a b c Warner, Brian D. (October 2008). "Asteroid Lightcurve Analysis at the Palmer Divide Observatory: February-May 2008". The Minor Planet Bulletin. 35 (4): 163–166. Bibcode:2008MPBu...35..163W. ISSN 1052-8091. Retrieved 25 September 2017.
  10. ^ a b c Waszczak, Adam; Chang, Chan-Kao; Ofek, Eran O.; Laher, Russ; Masci, Frank; Levitan, David; et al. (September 2015). "Asteroid Light Curves from the Palomar Transient Factory Survey: Rotation Periods and Phase Functions from Sparse Photometry". The Astronomical Journal. 150 (3): 35. arXiv:1504.04041. Bibcode:2015AJ....150...75W. doi:10.1088/0004-6256/150/3/75. S2CID 8342929. Retrieved 25 September 2017.
  11. ^ Veres, Peter; Jedicke, Robert; Fitzsimmons, Alan; Denneau, Larry; Granvik, Mikael; Bolin, Bryce; et al. (November 2015). "Absolute magnitudes and slope parameters for 250,000 asteroids observed by Pan-STARRS PS1 - Preliminary results". Icarus. 261: 34–47. arXiv:1506.00762. Bibcode:2015Icar..261...34V. doi:10.1016/j.icarus.2015.08.007. S2CID 53493339. Retrieved 25 September 2017.
  12. ^ a b "1093 Freda (1925 LA)". Minor Planet Center. Retrieved 25 September 2017.

External links edit

  • Asteroid Lightcurve Database (LCDB), query form (info 16 December 2017 at the Wayback Machine)
  • Dictionary of Minor Planet Names, Google books
  • Asteroids and comets rotation curves, CdR – Observatoire de Genève, Raoul Behrend
  • Discovery Circumstances: Numbered Minor Planets (1)-(5000) – Minor Planet Center
  • 1093 Freda at AstDyS-2, Asteroids—Dynamic Site
    • Ephemeris · Observation prediction · Orbital info · Proper elements · Observational info
  • 1093 Freda at the JPL Small-Body Database  
    • Close approach · Discovery · Ephemeris · Orbit diagram · Orbital elements · Physical parameters

April 08, 2024
1093, freda, provisional, designation, 1925, carbonaceous, asteroid, from, outer, regions, asteroid, belt, background, population, approximately, kilometers, diameter, discovered, june, 1925, astronomer, benjamin, jekhowsky, algiers, observatory, algeria, nort. 1093 Freda provisional designation 1925 LA is a carbonaceous asteroid from the outer regions of the asteroid belt s background population approximately 110 kilometers in diameter It was discovered on 15 June 1925 by astronomer Benjamin Jekhowsky at the Algiers Observatory in Algeria North Africa 12 The asteroid was named after French engineer Fred Prevost 2 1093 FredaDiscovery 1 Discovered byB JekhovskyDiscovery siteAlgiers Obs Discovery date15 June 1925DesignationsMPC designation 1093 FredaNamed afterFred Prevost French engineer 2 Alternative designations1925 LA A898 VEMinor planet categorymain belt outer 3 Orbital characteristics 1 Epoch 4 September 2017 JD 2458000 5 Uncertainty parameter 0Observation arc88 15 yr 32 198 days Aphelion3 9776 AUPerihelion2 2809 AUSemi major axis3 1293 AUEccentricity0 2711Orbital period sidereal 5 54 yr 2 022 days Mean anomaly175 72 Mean motion0 10m 41 16s dayInclination25 215 Longitude of ascending node55 635 Argument of perihelion251 42 Physical characteristicsDimensions88 01 27 85 km 4 101 67 1 45 km 5 116 73 2 9 km 6 126 04 43 76 km 7 Synodic rotation period10 73 0 05 h 8 10 73 0 05 h 8 19 67 0 01 h 9 a 19 701 0 0148 h 10 Geometric albedo0 03 0 02 7 0 0381 0 002 6 0 051 0 002 5 0 06 0 05 4 Spectral typeTholen C 1 3 B V 0 679 1 U B 0 356 1 Absolute magnitude H 8 49 0 42 11 8 83 1 3 5 6 7 8 88 4 8 882 0 001 R 10 Contents 1 Orbit and classification 2 Physical characteristics 2 1 Rotation period 2 2 Diameter and albedo 3 Naming 4 Notes 5 References 6 External linksOrbit and classification editFreda is a non family asteroid of the main belt s background population It orbits the Sun in the outer main belt at a distance of 2 3 4 0 AU once every 5 years and 6 months 2 022 days Its orbit has an eccentricity of 0 27 and an inclination of 25 with respect to the ecliptic 1 In November 1998 the asteroid was first identified as A898 VE at the Boyden Station of the Harvard Observatory in Peru The body s observation arc begins at Yerkes Observatory in February 1929 almost four years after its official discovery observation at Algiers 12 Physical characteristics editIn the Tholen classification Freda is a common carbonaceous C type asteroid 1 3 Rotation period edit Several rotational lightcurves of Freda were obtained from photometric observations by Brian Warner Federico Manzini and at the Palomar Transient Factory since 2007 8 9 10 Best rated lightcurve analysis gave a rotation period of 19 67 hours with a brightness amplitude of 0 21 magnitude U 3 9 a 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 Freda measures between 88 01 and 126 04 kilometers in diameter and its surface has an albedo between 0 03 and 0 06 4 5 6 7 The Collaborative Asteroid Lightcurve Link adopts the results obtained by IRAS that is an albedo of 0 0381 and a diameter of 116 73 kilometers based on an absolute magnitude of 8 83 3 Naming editThis minor planet was named after Fred Prevost a French civil engineer of mines and benefactor of the Faculty of sciences of Bordeaux The official naming citation was mentioned in The Names of the Minor Planets by Paul Herget in 1955 H 103 2 Notes edit a b Lightcurve plot of 1093 Freda Palmer Divide Observatory Brian D Warner 2008 Summary figures for 1093 Freda at the LCDBReferences edit a b c d e f g h JPL Small Body Database Browser 1093 Freda 1925 LA 2017 03 30 last obs Jet Propulsion Laboratory Archived from the original on 18 September 2020 Retrieved 25 September 2017 a b c Schmadel Lutz D 2007 1093 Freda Dictionary of Minor Planet Names 1093 Freda Springer Berlin Heidelberg p 93 doi 10 1007 978 3 540 29925 7 1094 ISBN 978 3 540 00238 3 a b c d e LCDB Data for 1093 Freda Asteroid Lightcurve Database LCDB Retrieved 25 September 2017 a b c d Nugent C R Mainzer A Bauer J Cutri R M Kramer E A Grav T et al September 2016 NEOWISE Reactivation Mission Year Two Asteroid Diameters and Albedos The Astronomical Journal 152 3 12 arXiv 1606 08923 Bibcode 2016AJ 152 63N doi 10 3847 0004 6256 152 3 63 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 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 a b c d Nugent C R Mainzer A Masiero J Bauer J Cutri R M Grav T et al December 2015 NEOWISE Reactivation Mission Year One Preliminary Asteroid Diameters and Albedos The Astrophysical Journal 814 2 13 arXiv 1509 02522 Bibcode 2015ApJ 814 117N doi 10 1088 0004 637X 814 2 117 S2CID 9341381 Retrieved 25 September 2017 a b c Behrend Raoul Asteroids and comets rotation curves 1093 Freda Geneva Observatory Retrieved 25 September 2017 a b c Warner Brian D October 2008 Asteroid Lightcurve Analysis at the Palmer Divide Observatory February May 2008 The Minor Planet Bulletin 35 4 163 166 Bibcode 2008MPBu 35 163W ISSN 1052 8091 Retrieved 25 September 2017 a b c Waszczak Adam Chang Chan Kao Ofek Eran O Laher Russ Masci Frank Levitan David et al September 2015 Asteroid Light Curves from the Palomar Transient Factory Survey Rotation Periods and Phase Functions from Sparse Photometry The Astronomical Journal 150 3 35 arXiv 1504 04041 Bibcode 2015AJ 150 75W doi 10 1088 0004 6256 150 3 75 S2CID 8342929 Retrieved 25 September 2017 Veres Peter Jedicke Robert Fitzsimmons Alan Denneau Larry Granvik Mikael Bolin Bryce et al November 2015 Absolute magnitudes and slope parameters for 250 000 asteroids observed by Pan STARRS PS1 Preliminary results Icarus 261 34 47 arXiv 1506 00762 Bibcode 2015Icar 261 34V doi 10 1016 j icarus 2015 08 007 S2CID 53493339 Retrieved 25 September 2017 a b 1093 Freda 1925 LA Minor Planet Center Retrieved 25 September 2017 External links editAsteroid Lightcurve Database LCDB query form info Archived 16 December 2017 at the Wayback Machine Dictionary of Minor Planet Names Google books Asteroids and comets rotation curves CdR Observatoire de Geneve Raoul Behrend Discovery Circumstances Numbered Minor Planets 1 5000 Minor Planet Center 1093 Freda at AstDyS 2 Asteroids Dynamic Site Ephemeris Observation prediction Orbital info Proper elements Observational info 1093 Freda 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 1093 Freda amp oldid 1191752891, wikipedia, wiki, book, books, library,

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