245 Vera

245 Vera
3D model based on lightcurve data
Discovery
Discovered byN. R. Pogson
Discovery date6 February 1885
Designations
(245) Vera
Pronunciation/ˈvɪərə/
A885 CA, 1919 HB
Main belt
Orbital characteristics[1]
Epoch 31 July 2016 (JD 2457600.5)
Uncertainty parameter 0
Observation arc131.06 yr (47,869 d)
Aphelion3.70600 AU (554.410 Gm)
Perihelion2.50409 AU (374.607 Gm)
3.10504 AU (464.507 Gm)
Eccentricity0.19354
5.47 yr (1,998.5 d)
16.93 km/s
120.926°
0° 10m 48.493s / day
Inclination5.15859°
61.2968°
329.674°
Physical characteristics
Dimensions79.50±3.2 km
14.38 h (0.599 d)
0.2082±0.018
Temperatureunknown
S[2]
7.82

245 Vera is a large Main belt asteroid. It was discovered by N. R. Pogson on February 6, 1885, in Madras,[3] and was named at the suggestion of his wife.[4] The asteroid is orbiting the Sun at a distance of 3.11 AU with a period of 5.47 years and an eccentricity (ovalness) of 0.19. The orbital plane is tilted at an angle of 5.16° to the plane of the ecliptic.[1] In 1890, Daniel Kirkwood noted that this asteroid shares similar orbital elements with 86 Semele and 106 Dione.[5]

Photometric measurements of this asteroid made during 1980–1981 were used to produce a light curve that demonstrated a rotation period of 14.38±0.03 h with a brightness variation of 0.26±0.01 in magnitude.[6] It is classified as a stony S-type asteroid in the Tholen system.[2] The asteroid has an estimated diameter of 75.95±2.63 km based on near infrared observations.[7]

References

  1. ^ a b "245 Vera". JPL Small-Body Database. NASA/Jet Propulsion Laboratory. Retrieved 12 May 2016.
  2. ^ a b Xu, Shui; et al. (May 1995), "Small Main-belt Asteroid Spectroscopic Survey: initial results", Icarus, 115 (1): 1–35, Bibcode:1995Icar..115....1X, doi:10.1006/icar.1995.1075.
  3. ^ Discovery Circumstances: Numbered Minor Planets (1)-(5000), IAU: Minor Planet Center, archived from the original on 2 July 2007, retrieved 12 September 2021.
  4. ^ Schmadel, Lutz D. (2013), Dictionary of Minor Planet Names, Springer Berlin Heidelberg, ISBN 9783662028049.
  5. ^ Kirkwood, Daniel (1890), "On the similarity of certain orbits in the zone of asteroids", Publications of the Astronomical Society of the Pacific, 2 (7): 95–97, doi:10.1086/120087, S2CID 120889567.
  6. ^ Debehogne, H.; et al. (November 1982), "Physical studies of asteroids. VIII - Photoelectric photometry of the asteroids 42, 48, 93, 105, 145 and 245", Astronomy and Astrophysics Supplement Series, 50: 277–281, Bibcode:1982A&AS...50..277D.
  7. ^ Masiero, Joseph 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, 121.

Further reading


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