Astronomy:3841 Dicicco

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3841 Dicicco
Discovery [1]
Discovered byB. A. Skiff
Discovery siteAnderson Mesa Stn.
Discovery date4 November 1983
Designations
(3841) Dicicco
Named afterDennis di Cicco
(American astronomer)[2]
1983 VG7 · 1973 YM2
1982 KA2
Minor planet categorymain-belt · Flora [3]
Orbital characteristics [1]
Epoch 4 September 2017 (JD 2458000.5)
Uncertainty parameter 0
Observation arc43.27 yr (15,806 days)
|{{{apsis}}}|helion}}2.6394 AU
|{{{apsis}}}|helion}}1.9083 AU
2.2739 AU
Eccentricity0.1607
Orbital period3.43 yr (1,252 days)
Mean anomaly305.68°
Mean motion0° 17m 14.64s / day
Inclination5.2241°
Longitude of ascending node46.079°
359.76°
Known satellites1 [4][5]
Physical characteristics
Dimensions4.74±1.11 km[6]
5.10 km (derived)[3]
6.252±0.110 km[7][8]
6.45±0.31 km[9]
Rotation period3.5949±0.0002 h[lower-alpha 1]
3.5950±0.0001 h[5]
Geometric albedo0.24 (assumed)[3]
0.294±0.033[9][8]
0.3126±0.0343[7]
0.38±0.24[6]
SMASS = S [1] · S [10][3]
Absolute magnitude (H)12.90[9][7] · 13.00[6] · 13.2[1] · 13.26±0.25[10] · 13.63±0.04[3][5]


3841 Dicicco, provisional designation 1983 VG7, is a stony Florian asteroid and synchronous binary system from the inner regions of the asteroid belt, approximately 5 kilometers in diameter. It was discovered on 4 November 1983, by American astronomer Brian Skiff at Lowell's Anderson Mesa Station near Flagstaff, Arizona, in the United States.[11] It was named after American astronomer Dennis di Cicco.[2] Its minor-planet moon, provisionally designated S/2014 (3841) 1, was discovered in 2014.[5]

Orbit and classification

Dicicco is member of the Flora family, one of the largest groups of stony asteroids in the inner main-belt. It orbits the Sun at a distance of 1.9–2.6 AU once every 3 years and 5 months (1,252 days). Its orbit has an eccentricity of 0.16 and an inclination of 5° with respect to the ecliptic.[1]

It was first identified as 1973 YM2 at Crimea–Nauchnij in 1973, extending the body's observation arc by 10 years prior to its official discovery observation at Anderson Mesa.[11]

Physical characteristics

Dicicco is a stony S-type asteroid in the SMASS classification.[1]

Rotation period

In December 2014, two rotational lightcurves of Dicicco were obtained from photometric observations by an international collaboration of American and European astronomers. Lightcurve analysis gave a rotation period of 3.5949 and 3.5950 hours with a brightness amplitude of 0.18 and 0.19 magnitude, respectively ({{{1}}}).[5][lower-alpha 1]

Diameter and albedo

According to the survey carried out by NASA's Wide-field Infrared Survey Explorer with its subsequent NEOWISE mission, Dicicco measures between 4.74 and 6.45 kilometers in diameter and its surface has an albedo between 0.294 and 0.38.[6][7][8][9] The Collaborative Asteroid Lightcurve Link assumes an albedo of 0.24 — derived from 8 Flora, the family's largest member and namesake – and derives a diameter of 5.10 kilometers using an absolute magnitude of 13.63.[3]

Satellite

During the photometric observations made in December 2014, it was revealed that Dicicco is a synchronous binary asteroid. Its minor-planet moon, designated S/2014 (3841) 1 measures at least 1.67 kilometers in diameter based on a diameter-ratio of larger than 0.28.[4] Its orbit has an estimated semi-major axis of 12 kilometers, and a derived period of 21.63 and 21.641 hours, respectively.[5][lower-alpha 1]

Naming

This minor planet was named after American amateur astronomer and astrophotographer Dennis di Cicco.[2] The approved naming citation was published by the Minor Planet Center on 10 April 1990 (M.P.C. 16246).[12]

Notes

  1. ↑ 1.0 1.1 1.2 Klinglesmith (2014) web: rotation period 3.5949±0.0002 hours with a brightness amplitude of mag, obs. date: 2014-11-26; Quality Code: n.a.. Summary figures for (3841) Dicicco at Collaborative Asteroid Lightcurve Link (CALL). Referenced publication 2014CBET.4033....1K is not a valid abstract at ADS

References

  1. ↑ 1.0 1.1 1.2 1.3 1.4 1.5 "JPL Small-Body Database Browser: 3841 Dicicco (1983 VG7)". Jet Propulsion Laboratory. https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=2003841. 
  2. ↑ 2.0 2.1 2.2 Schmadel, Lutz D. (2007). "(3841) Dicicco". Dictionary of Minor Planet Names – (3841) Dicicco. Springer Berlin Heidelberg. pp. 325–326. doi:10.1007/978-3-540-29925-7_3833. ISBN 978-3-540-00238-3. 
  3. ↑ 3.0 3.1 3.2 3.3 3.4 3.5 "LCDB Data for (3841) Dicicco". Asteroid Lightcurve Database (LCDB). http://www.minorplanet.info/PHP/generateOneAsteroidInfo.php?AstInfo=3841%7CDicicco. 
  4. ↑ 4.0 4.1 Johnston, Robert (16 November 2014). "(3841) Dicicco". Johnston's Archive. http://www.johnstonsarchive.net/astro/astmoons/am-03841.html. 
  5. ↑ 5.0 5.1 5.2 5.3 5.4 5.5 Klinglesmith, Daniel A. III; Franco, Lorenzo; Marchini, Alessandro; Odden, Carolyn E.; Pravec, Petr; Scardella, Maurizio et al. (October 2015). "3841 Dicicco: A Binary Asteroid". The Minor Planet Bulletin 42 (4): 249–250. ISSN 1052-8091. Bibcode: 2015MPBu...42..249K. http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2015MPBu...42..249K. Retrieved 16 June 2017. 
  6. ↑ 6.0 6.1 6.2 6.3 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. doi:10.1088/0004-637X/814/2/117. Bibcode: 2015ApJ...814..117N. http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2015ApJ...814..117N. Retrieved 16 June 2017. 
  7. ↑ 7.0 7.1 7.2 7.3 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. doi:10.1088/0004-637X/741/2/90. Bibcode: 2011ApJ...741...90M. 
  8. ↑ 8.0 8.1 8.2 Masiero, Joseph R.; Mainzer, A. K.; Grav, T.; Bauer, J. M.; Cutri, R. M.; Dailey, J. et al. (November 2011). "Main Belt Asteroids with WISE/NEOWISE. I. Preliminary Albedos and Diameters". The Astrophysical Journal 741 (2): 20. doi:10.1088/0004-637X/741/2/68. Bibcode: 2011ApJ...741...68M. http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2011ApJ...741...68M. Retrieved 16 June 2017. 
  9. ↑ 9.0 9.1 9.2 9.3 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. doi:10.1088/2041-8205/759/1/L8. Bibcode: 2012ApJ...759L...8M. http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2012ApJ...759L...8M. Retrieved 16 June 2017. 
  10. ↑ 10.0 10.1 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. doi:10.1016/j.icarus.2015.08.007. Bibcode: 2015Icar..261...34V. http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2015Icar..261...34V. Retrieved 16 June 2017. 
  11. ↑ 11.0 11.1 "3841 Dicicco (1983 VG7)". Minor Planet Center. https://www.minorplanetcenter.net/db_search/show_object?object_id=3841. 
  12. ↑ "MPC/MPO/MPS Archive". Minor Planet Center. https://www.minorplanetcenter.net/iau/ECS/MPCArchive/MPCArchive_TBL.html. 

External links



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