1099 Figneria

From Wikipedia, the free encyclopedia
Jump to navigation Jump to search
1099 Figneria
Discovery [1]
Discovered by G. Neujmin
Discovery site Simeiz Obs.
Discovery date 13 September 1928
MPC designation (1099) Figneria
Named after
Vera Figner[2]
(Russian revolutionary activist)
1928 RQ · 1952 BM
A917 UF
main-belt · (outer)[3]
Orbital characteristics[1]
Epoch 4 September 2017 (JD 2458000.5)
Uncertainty parameter 0
Observation arc 88.72 yr (32,404 days)
Aphelion 4.0624 AU
Perihelion 2.2973 AU
3.1799 AU
Eccentricity 0.2775
5.67 yr (2,071 days)
0° 10m 25.68s / day
Inclination 11.839°
Physical characteristics
Dimensions 23.309±0.404 km[4][5]
25.13±0.41 km[6]
29.39±6.3 km[7]
29.55 km (derived)[3]
13.577±0.001 h[8]
13.583±0.0160 h[9]
0.1683 (derived)[3]
LS[10] · K[11] · C[3]
9.917±0.002 (R)[9] · 10.2[1][3] · 10.40[5][6][7] · 10.40±0.26[10]

1099 Figneria, provisional designation 1928 RQ, is an asteroid from the background population of the outer regions of the asteroid belt, approximately 26 kilometers in diameter. Discovered by Grigory Neujmin at Simeiz Observatory in 1928, the asteroid was later named after Russian revolutionary activist Vera Figner.[12]


Figneria was discovered by Soviet astronomer Grigory Neujmin at the Simeiz Observatory on the Crimean peninsula on 13 September 1928.[12] On the same night, it was independently discovered by German astronomer Max Wolf at the Heidelberg Observatory in southwest Germany.[2][a] The Minor Planet Center, however, only acknowledges the first discoverer.[12]

In October 1927, the asteroid was first identified as A917 UF at Simeiz, where the body's observation arc begins 11 months later with its official discovery observation.[12]

Orbit and classification[edit]

Figneria 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 2.3–4.1 AU once every 5 years and 8 months (2,071 days). Its orbit has an eccentricity of 0.28 and an inclination of 12° with respect to the ecliptic.[1]

Physical characteristics[edit]

PanSTARRS photometric survey gave Figneria a spectral type of an L- and S-type asteroid,[10] while it has been characterized as a K-type asteroid based on polarimetric observations.[11] The asteroid is also an assumed carbonaceous C-type asteroid.[3]

Rotation period[edit]

In September 2007, a rotational lightcurve of Figneria was obtained by astronomer Julian Oey at the Kingsgrove (E19) and Leura Observatories (E17) in Australia. Lightcurve analysis gave a rotation period of 13.577 hours with a brightness variation of 0.16 magnitude (U=3-).[8] In January 2014, photometric observations at the Palomar Transient Factory in California gave a period of 13.583 hours and an amplitude of 0.15 magnitude (U=2).[9]

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, Figneria measures between 23.309 and 29.39 kilometers in diameter and its surface has an albedo between 0.1415 and 0.225.[4][5][6][7]

The Collaborative Asteroid Lightcurve Link derives an albedo of 0.1683 and a diameter of 29.55 kilometers based on an absolute magnitude of 10.2.[3]


This minor planet was named by the discoverer after Vera Figner (1852–1942), a Russian writer and revolutionary political activist. The official naming citation was published in the Planetenzirkular des Astronomischen Rechen-Institut (RI 789).[2]


  1. ^ Observation at Heidelberg on 13 September 1928, as per HD 17 – Mitteilungen der Landessternwarte Heidelberg


  1. ^ a b c d "JPL Small-Body Database Browser: 1099 Figneria (1928 RQ)" (2017-06-02 last obs.). Jet Propulsion Laboratory. Retrieved 19 September 2017. 
  2. ^ a b c Schmadel, Lutz D. (2007). Dictionary of Minor Planet Names – (1099) Figneria. Springer Berlin Heidelberg. p. 93. ISBN 978-3-540-00238-3. Retrieved 19 September 2017. 
  3. ^ a b c d e f g "LCDB Data for (1099) Figneria". Asteroid Lightcurve Database (LCDB). Retrieved 19 September 2017. 
  4. ^ a b c 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. arXiv:1109.4096Freely accessible. Bibcode:2011ApJ...741...68M. doi:10.1088/0004-637X/741/2/68. Retrieved 19 September 2017. 
  5. ^ 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" (PDF). The Astrophysical Journal. 741 (2): 25. arXiv:1109.6407Freely accessible. Bibcode:2011ApJ...741...90M. doi:10.1088/0004-637X/741/2/90. Retrieved 19 September 2017. 
  6. ^ 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 19 September 2017. 
  7. ^ 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. Bibcode:2004PDSS...12.....T. Retrieved 19 September 2017. 
  8. ^ a b Oey, Julian (September 2008). "Lightcurve Analysis of Asteroids from the Kingsgrove and Leura Observatories in the 2nd Half of 2007". The Minor Planet Bulletin. 35 (3): 132–135. Bibcode:2008MPBu...35..132O. ISSN 1052-8091. Retrieved 19 September 2017. 
  9. ^ 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:1504.04041Freely accessible. Bibcode:2015AJ....150...75W. doi:10.1088/0004-6256/150/3/75. Retrieved 19 September 2017. 
  10. ^ a b c 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:1506.00762Freely accessible. Bibcode:2015Icar..261...34V. doi:10.1016/j.icarus.2015.08.007. Retrieved 19 September 2017. 
  11. ^ a b Belskaya, I. N.; Fornasier, S.; Tozzi, G. P.; Gil-Hutton, R.; Cellino, A.; Antonyuk, K.; et al. (March 2017). "Refining the asteroid taxonomy by polarimetric observations". Icarus. 284: 30–42. Bibcode:2017Icar..284...30B. doi:10.1016/j.icarus.2016.11.003. Retrieved 19 September 2017. 
  12. ^ a b c d "1099 Figneria (1928 RQ)". Minor Planet Center. Retrieved 19 September 2017. 

External links[edit]