1081 Reseda

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1081 Reseda
001081-asteroid shape model (1081) Reseda.png
Modelled shape of Reseda from its lightcurve
Discovery [1]
Discovered by K. Reinmuth
Discovery site Heidelberg 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 arc 89.85 yr (32,816 days)
Aphelion 3.5567 AU
Perihelion 2.6505 AU
3.1036 AU
Eccentricity 0.1460
5.47 yr (1,997 days)
167.25°
0° 10m 49.08s / day
Inclination 4.2029°
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]

    Contents

    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]

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    References

    1. 1 2 3 4 5 "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. 1 2 3 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. 1 2 3 "1081 Reseda (1927 QF)". Minor Planet Center. Retrieved 28 November 2017.
    5. 1 2 "Asteroid 1081 Reseda – Proper Elements". AstDyS-2, Asteroids – Dynamic Site. Retrieved 13 March 2020.
    6. 1 2 3 4 "Asteroid 1081 Reseda". Small Bodies Data Ferret. Retrieved 13 March 2020.
    7. 1 2 3 4 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.
    8. 1 2 3 4 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)
    9. 1 2 3 4 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 .
    10. 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. S2CID   119293330.
    11. 1 2 3 4 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.
    12. 1 2 3 4 5 6 "LCDB Data for (1081) Reseda". Asteroid Lightcurve Database (LCDB). Retrieved 28 November 2017.
    13. 1 2 3 4 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.
    14. 1 2 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. 1 2 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. S2CID   118427201.
    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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