790 Pretoria is a minor planet orbiting the Sun that was discovered by English astronomer Harry Edwin Wood on January 16, 1912. It is a member of the Cybele group located beyond the core of the main belt[4] (see Minor planet groups) and named after Pretoria, the capital city of South Africa.

10μ radiometric data collected from Kitt Peak in 1975 gave a diameter estimate of 175 km.[5] In the present day it is estimated to be 170 km (106 mi) in diameter.[2] Photometric measurements of the asteroid made in 2005 at the Palmer Divide Observatory showed a light curve with a period of 10.370 ± 0.002 hours and a brightness variation of 0.08 ± 0.03 in magnitude.[6]

790 Pretoria has been observed to occult 15 stars between 1998 and 2023.

References

  1. ^ "Pretoria". Dictionary.com Unabridged (Online). n.d.
  2. ^ a b c "JPL Small-Body Database Browser: 790 Pretoria (1912 NW)" (2009-12-21 last obs). Archived from the original on 10 June 2011. Retrieved 4 May 2016.
  3. ^ a b c Carry, B. (December 2012), "Density of asteroids", Planetary and Space Science, 73 (1): 98–118, arXiv:1203.4336, Bibcode:2012P&SS...73...98C, doi:10.1016/j.pss.2012.03.009, S2CID 119226456. See Table 1.
  4. ^ De Prá, M. N.; et al. (September 2018), "PRIMASS visits Hilda and Cybele groups", Icarus, 311: 35–51, arXiv:1711.02071, Bibcode:2018Icar..311...35D, doi:10.1016/j.icarus.2017.11.012, S2CID 119383924.
  5. ^ Morrison, D.; Chapman, C. R. (March 1976), "Radiometric diameters for an additional 22 asteroids", Astrophysical Journal, vol. 204, pp. 934–939, Bibcode:2008mgm..conf.2594S, doi:10.1142/9789812834300_0469.
  6. ^ Warner, Brian D. (2005), "Asteroid lightcurve analysis at the Palmer Divide Observatory - winter 2004-2005", The Minor Planet Bulletin, 32 (3): 54–58, Bibcode:2005MPBu...32...54W.


Allikas: https://en.wikipedia.org/wiki/790_Pretoria
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