1856 Růžena

1856 Růžena
Discovery[1]
Discovered byL. Chernykh
Discovery siteCrimean Astrophysical Obs.
Discovery date8 October 1969
Designations
(1856) Růžena
Named after
Růžena Petrovicova
(Kleť Observatory)[2]
1969 TW1 · 1941 FP
1971 DL1
main-belt · (inner)
Orbital characteristics[1]
Epoch 4 September 2017 (JD 2458000.5)
Uncertainty parameter 0
Observation arc47.47 yr (17,339 days)
Aphelion2.4146 AU
Perihelion2.0586 AU
2.2366 AU
Eccentricity0.0796
3.34 yr (1,222 days)
251.86°
0° 17m 40.92s / day
Inclination4.7421°
185.88°
56.000°
Physical characteristics
Dimensions6.620±0.252 km[3]
0.335±0.033[3]
SMASS = S[1]
12.8[1]

1856 Růžena, provisional designation 1969 TW1, is a stony asteroid from the inner regions of the asteroid belt, approximately 6.6 kilometers in diameter. It was discovered on 8 October 1969, by Russian astronomer Lyudmila Chernykh at Crimean Astrophysical Observatory in Nauchny, on the Crimean peninsula.[4] The asteroid was named after Růžena Petrovicova, staff member at Kleť Observatory.[2]

Orbit and classification

Růžena orbits the Sun in the inner main-belt at a distance of 2.1–2.4 AU once every 3 years and 4 months (1,222 days). Its orbit has an eccentricity of 0.08 and an inclination of 5° with respect to the ecliptic.[1] The asteroid was first identified as 1941 FP at the Finnish Iso-Heikkilä Observatory. The body's observation arc, however, starts with its official discovery observation at Nauchnyj in 1969.[4]

Physical characteristics

Růžena is bright S-type asteroid in the SMASS classification.[1]

According to the survey carried out by NASA's Wide-field Infrared Survey Explorer with its subsequent NEOWISE mission, Růžena measures 6.62 kilometers in diameter and its surface has an albedo of 0.335.[3] As of 2016, the body's rotation period and shape remain unknown.[1][5]

Naming

This asteroid was named in honor of Růžena Petrovicova, observer of comets and minor planets and staff member of the Kleť Observatory, located in what is now the Czech Republic.[2] The official naming citation was published by the Minor Planet Center on 1 June 1975 (M.P.C. 3825).[6]

References

  1. ^ a b c d e f g "JPL Small-Body Database Browser: 1856 Ruzena (1969 TW1)" (2017-03-29 last obs.). Jet Propulsion Laboratory. Archived from the original on 20 December 2016. Retrieved 8 June 2017.
  2. ^ a b c Schmadel, Lutz D. (2007). "(1856) Ružena". Dictionary of Minor Planet Names – (1856) Ružena. Springer Berlin Heidelberg. p. 149. doi:10.1007/978-3-540-29925-7_1857. ISBN 978-3-540-00238-3.
  3. ^ a b c 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. Retrieved 13 December 2016.
  4. ^ a b "1856 Ruzena (1969 TW1)". Minor Planet Center. Retrieved 13 December 2016.
  5. ^ "LCDB Data for (1856) Růžena". Asteroid Lightcurve Database (LCDB). Retrieved 8 June 2017.
  6. ^ 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. doi:10.1007/978-3-642-01965-4. ISBN 978-3-642-01964-7.