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1081 Reseda

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1081 Reseda
Modelled shape of Reseda from its lightcurve
Discovery [1]
Discovered byK. Reinmuth
Discovery siteHeidelberg Obs.
Discovery date31 August 1927
Designations
(1081) Reseda
Pronunciation/rɪˈsiːdə/[2]
Named after
Resēda (mignonette)
(herbaceous plant)[3]
1927 QF · 1949 UA1
1975 LS
Orbital characteristics [1]
Epoch 4 September 2017 (JD 2458000.5)
Uncertainty parameter 0
Observation arc89.85 yr (32,816 days)
Aphelion3.5567 AU
Perihelion2.6505 AU
3.1036 AU
Eccentricity0.1460
5.47 yr (1,997 days)
167.25°
0° 10m 49.08s / day
Inclination4.2029°
30.443°
7.5205°
Physical characteristics
Dimensions31.60±11.05 km[7]
35.66±0.70 km[8]
37.03±8.13 km[9]
37.810±0.219 km[10]
37.89±0.46 km[11]
37.97 km (derived)[12]
40.462±0.470 km[13]
7.3002±0.0006 h[14]
7.30136±0.00001 h[15]
  • (92.0°, −69.0°) (λ1/β1)[6]
  • (256.0°, −76.0°) (λ2/β2)[6]
0.0326±0.0026[13]
0.042±0.002[8]
0.043±0.006[10]
0.0488 (derived)[12]
0.049±0.008[11]
0.06±0.02[9]
0.09±0.07[7]
C (assumed)[12]
11.00[12][7][11] · 11.1[1] · 11.16[9] · 11.30[8][13]

1081 Reseda (prov. designation: 1927 QF) is a dark background asteroid from the outer regions of the asteroid belt. It was discovered on 31 August 1927, by astronomer Karl Reinmuth at the Heidelberg-Königstuhl State Observatory in southwest Germany.[4] The asteroid has a rotation period of 7.3 hours and measures approximately 37 kilometers (23 miles) in diameter. It was named after the herbaceous plant Reseda.[3]

Orbit and classification

Reseda is a non-family asteroid of the main belt's background population when applying the hierarchical clustering method to its proper orbital elements.[5][6] It orbits the Sun in the outer asteroid belt at a distance of 2.7–3.6 AU once every 5 years and 6 months (1,997 days; semi-major axis of 3.10 AU). Its orbit has an eccentricity of 0.15 and an inclination of 4° with respect to the ecliptic.[1] The body's observation arc begins at Heidelberg in September 1927, or 26 days after its official discovery observation.[4]

Naming

This minor planet was named after the herbaceous plant Reseda (also known as "weld", "dyer's rocket" and "bastard rocket") a genus of Old World herbs of the mignonette family. The official naming citation was mentioned in The Names of the Minor Planets by Paul Herget in 1955 (H 102).[3]

Reinmuth's flowers

Due to his many discoveries, Karl Reinmuth submitted a large list of 66 newly named asteroids in the early 1930s. The list covered his discoveries with numbers between (1009) and (1200). This list also contained a sequence of 28 asteroids, starting with 1054 Forsytia, that were all named after plants, in particular flowering plants (also see list of minor planets named after animals and plants).[16]

Physical characteristics

Reseda is an assumed carbonaceous C-type asteroid.[12]

Rotation period

In August 2008, a rotational lightcurve of Reseda was obtained from photometric observations. Lightcurve analysis gave a well-defined rotation period of 7.3002 hours with a brightness amplitude of 0.34 magnitude (U=3).[14]

Poles

A 2016-published lightcurve, using modeled photometric data from the Lowell Photometric Database, gave a concurring period of 7.30136 hours, as well as two spin axis of (92.0°, −69.0°) and (256.0°, −76.0°) in ecliptic coordinates (λ, β).[15]

Diameter and albedo

According to the surveys carried out by the Japanese Akari satellite and the NEOWISE mission of NASA's Wide-field Infrared Survey Explorer, Reseda measures between 31.60 and 40.462 kilometers in diameter and its surface has an albedo between 0.0326 and 0.09.[7][8][9][10][11][13] The Collaborative Asteroid Lightcurve Link derives an albedo of 0.0488 and a diameter of 37.97 kilometers based on an absolute magnitude of 11.0.[12]

References

  1. ^ a b c d e "JPL Small-Body Database Browser: 1081 Reseda (1927 QF)" (2017-07-05 last obs.). Jet Propulsion Laboratory. Retrieved 28 November 2017.
  2. ^ "reseda". Oxford English Dictionary (Online ed.). Oxford University Press. (Subscription or participating institution membership required.)
  3. ^ a b c Schmadel, Lutz D. (2007). "(1081) Reseda". Dictionary of Minor Planet Names. Springer Berlin Heidelberg. p. 92. doi:10.1007/978-3-540-29925-7_1082. ISBN 978-3-540-00238-3.
  4. ^ a b c "1081 Reseda (1927 QF)". Minor Planet Center. Retrieved 28 November 2017.
  5. ^ a b "Asteroid 1081 Reseda – Proper Elements". AstDyS-2, Asteroids – Dynamic Site. Retrieved 13 March 2020.
  6. ^ a b c d "Asteroid 1081 Reseda". Small Bodies Data Ferret. Retrieved 13 March 2020.
  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.
  8. ^ 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. Retrieved 17 October 2019. (online, AcuA catalog p. 153)
  9. ^ 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.{{cite journal}}: CS1 maint: unflagged free DOI (link)
  10. ^ a b c 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.
  11. ^ 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.
  12. ^ a b c d e f "LCDB Data for (1081) Reseda". Asteroid Lightcurve Database (LCDB). Retrieved 28 November 2017.
  13. ^ 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.
  14. ^ a b Yankov, Arten; Ditteon, Richard (January 2009). "Lightcurves and Periods for Asteroids 1081 Reseda 2117 Danmark, 2315 Czechoslovakia, 2871 Schober, 6392 Takashimizuno, and (6409) 1992 VC". The Minor Planet Bulletin. 36 (1): 3–4. Bibcode:2009MPBu...36....3Y. ISSN 1052-8091.
  15. ^ a b Durech, J.; Hanus, J.; Oszkiewicz, D.; Vanco, R. (March 2016). "Asteroid models from the Lowell photometric database". Astronomy and Astrophysics. 587: 6. arXiv:1601.02909. Bibcode:2016A&A...587A..48D. doi:10.1051/0004-6361/201527573.
  16. ^ Schmadel, Lutz D. (2007). "(1054) Forsytia". Dictionary of Minor Planet Names. Springer Berlin Heidelberg. p. 90. doi:10.1007/978-3-540-29925-7_1055. ISBN 978-3-540-00238-3.
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