1330 Spiridonia

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1330 Spiridonia
Discovery [1]
Discovered by V. Albitzkij
Discovery site Simeiz Obs.
Discovery date17 February 1925
Designations
(1330) Spiridonia
Named after
Spiridon Zaslavskij [2]
(discoverer's brother-in-law)
1925 DB ·1931 FA
1933 QK1 ·1942 ED
1950 OP ·1959 EZ
A922 SA
main-belt  ·(outer) [3]
background [4]
Orbital characteristics [1]
Epoch 4 September 2017 (JD 2458000.5)
Uncertainty parameter 0
Observation arc 95.12 yr (34,741 days)
Aphelion 3.4092 AU
Perihelion 2.9306 AU
3.1699 AU
Eccentricity 0.0755
5.64 yr (2,061 days)
104.05°
0° 10m 28.56s / day
Inclination 15.957°
158.82°
4.4832°
Physical characteristics
Dimensions50.73±15.63 km [5]
51.96±16.95 km [6]
55.08±4.9 km [7]
55.17 km (derived) [3]
68.417±0.584 km [8]
69.917±1.110 km [9]
73.75±1.44 km [10]
78.496±27.90 km [11]
9.626±0.002 h [12]
9.67±0.01 h [13]
10.3±0.03 h [14]
10.3±0.3 h [14]
10.302±0.001 h [14]
0.029±0.001 [10]
0.0297±0.0177 [11]
0.0309±0.0051 [9]
0.032±0.004 [8]
0.0498±0.010 [7]
0.0580 (derived) [3]
0.06±0.04 [6]
0.06±0.05 [5]
Tholen = P [1] [3]
B–V = 0.670 [1]
U–B = 0.170 [1]
10.00 [1] [3] [5] [11]  ·10.03 [6]  ·10.17 [7] [9] [10]  ·10.26±0.10 [15]

    1330 Spiridonia, provisional designation 1925 DB, is a dark background asteroid of primitive composition, located in the outer regions of the asteroid belt, approximately 65 kilometers in diameter. It was discovered on 17 February 1925, by Soviet astronomer Vladimir Albitsky at the Simeiz Observatory on the Crimean peninsula. [16] The asteroid was named after the discoverer's brother-in-law, Spiridon Zaslavskij. [2]

    Contents

    Orbit and classification

    Spiridonia is a non-family asteroid from the main belt's background population. [4] It orbits the Sun in the outer asteroid belt at a distance of 2.9–3.4  AU once every 5 years and 8 months (2,061 days; semi-major axis of 3.17 AU). Its orbit has an eccentricity of 0.08 and an inclination of 16° with respect to the ecliptic. [1]

    The asteroid was first identified as A922 SA at Heidelberg Observatory in September 1922. The body's observation arc begins at Yerkes Observatory in October 1934, more than 9 years after its official discovery observation at Simeiz. [16]

    Physical characteristics

    In the Tholen classification, Spiridonia is a primitive P-type asteroid. [1] [3]

    Rotation period

    Several rotational lightcurves of Spiridonia have been obtained from photometric observations since 2004. [12] [13] [14] Analysis of the best-rated lightcurve by American photometrist Robert Stephens at the Santana Observatory (646) from April 2005, gave a rotation period of 9.67 hours with a brightness amplitude of 0.16 magnitude ( U=3 ). [1] [13]

    Diameter and albedo

    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, Spiridonia measures between 50.73 and 78.496 kilometers in diameter and its surface has an albedo between 0.029 and 0.06. [5] [6] [7] [8] [9] [10] [11]

    The Collaborative Asteroid Lightcurve Link derives an albedo of 0.0580 and a diameter of 55.17 kilometers based on an absolute magnitude of 10.0. [3]

    1330 Spiridonia has been observed to occult 5 stars between 1993 and 2023.

    Naming

    This minor planet was named after the discoverer's brother-in-law, Spiridon Zaslavskij (1883–1942), who was also the uncle of Viktorovich Zaslavskij (1925–1944), after whom the discoverer named the asteroid 1030 Vitja. [2] The official naming citation was published by the Minor Planet Center on 15 July 1968 ( M.P.C. 2882). [17]

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    References

    1. 1 2 3 4 5 6 7 8 9 "JPL Small-Body Database Browser: 1330 Spiridonia (1925 DB)" (2017-11-02 last obs.). Jet Propulsion Laboratory . Retrieved 29 November 2017.
    2. 1 2 3 Schmadel, Lutz D. (2007). "(1330) Spiridonia". Dictionary of Minor Planet Names – (1330) Spiridonia. Springer Berlin Heidelberg. p. 108. doi:10.1007/978-3-540-29925-7_1331. ISBN   978-3-540-00238-3.
    3. 1 2 3 4 5 6 7 "LCDB Data for (1330) Spiridonia". Asteroid Lightcurve Database (LCDB). Retrieved 29 November 2017.
    4. 1 2 "Asteroid 1330 Spiridonia – Proper Elements". AstDyS-2, Asteroids – Dynamic Site. Retrieved 29 October 2019.
    5. 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 . Retrieved 29 November 2017.
    6. 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 .
    7. 1 2 3 4 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. Bibcode:2004PDSS...12.....T . Retrieved 17 October 2019.
    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. S2CID   119293330.
    9. 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.
    10. 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)
    11. 1 2 3 4 Masiero, Joseph R.; Nugent, C.; Mainzer, A. K.; Wright, E. L.; Bauer, J. M.; Cutri, R. M.; et al. (October 2017). "NEOWISE Reactivation Mission Year Three: Asteroid Diameters and Albedos". The Astronomical Journal. 154 (4): 10. arXiv: 1708.09504 . Bibcode:2017AJ....154..168M. doi: 10.3847/1538-3881/aa89ec .
    12. 1 2 Stephens, Robert D. (January 2013). "Asteroids Observed from Santana and CS3 Observatories: 2012 July - September". The Minor Planet Bulletin. 40 (1): 34–35. Bibcode:2013MPBu...40...34S. ISSN   1052-8091 . Retrieved 29 November 2017.
    13. 1 2 3 Stephens, Robert D. (September 2005). "Asteroid lightcurve photometry from Santana Observatory - winter 2005". The Minor Planet Bulletin. 32 (3): 66–68. Bibcode:2005MPBu...32...66S. ISSN   1052-8091 . Retrieved 29 November 2017.
    14. 1 2 3 4 Behrend, Raoul. "Asteroids and comets rotation curves – (1330) Spiridonia". Geneva Observatory. Retrieved 29 November 2017.
    15. ↑ 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 29 November 2017.
    16. 1 2 "1330 Spiridonia (1925 DB)". Minor Planet Center. Retrieved 29 November 2017.
    17. ↑ Schmadel, Lutz D. (2009). "Appendix – Publication Dates of the MPCs". Dictionary of Minor Planet Names – Addendum to Fifth Edition (2006–2008). Springer Berlin Heidelberg. p. 221. Bibcode:2009dmpn.book.....S. doi:10.1007/978-3-642-01965-4. ISBN   978-3-642-01964-7.
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