79P/du Toit–Hartley

From Wikipedia, the free encyclopedia
Jump to: navigation, search
79P/du Toit–Hartley
Discovery
Discovered by Daniel du Toit, Boyden Observatory, South Africa and Malcolm Hartley of the UK Schmidt Telescope Unit, Siding Spring, Australia
Discovery date 9 April 1945
Alternative
designations
1987 IX, 1986q, 79P/1982 C1-A, 1982 II, 1982b, 79P/1945 G1, 1945 II, 1945c
Orbital characteristics A
Epoch 9 December 2014
Aphelion 4.83 AU
Perihelion 1.1233 AU
Semi-major axis 2.9460 AU
Eccentricity 0.6187
Orbital period 5.06 a
Inclination 3.145°
Last perihelion 23 Aug 2013
Next perihelion 13 Sep 2018[1]

79P/du Toit–Hartley or du Toit 2 is a periodic comet, now divided into two parts, in the Solar System with an orbital period of 5.06 years.

It was originally discovered by Daniel du Toit at the Boyden Observatory, Bloemfontein, South Africa (then administered by Harvard College) on 9 April 1945 with a brightness of apparent magnitude 10.[2]

Uncertainties in the calculation of the orbit meant the comet was lost until rediscovered by Malcolm Hartley of the UK Schmidt Telescope Unit, Siding Spring, Australia in 1982, when it was found to have broken into two parts, probably in 1976. Both parts had a brightness of magnitude 17. Observed in 1987, it was missed in 1992 but rediscovered by astronomers at Los Molinos Observatory, Uruguay on 4 March 2003 at magnitude 17.

See also[edit]

References[edit]

  1. ^ MPC
  2. ^ "79P/du Toit-Hartley". Cometography. Retrieved 25 February 2015. 
Numbered comets
Previous
78P/Gehrels
79P/du Toit–Hartley Next
80P/Peters–Hartley