John Broughton

In 2002, Broughton was one of five astronomers to be awarded a "Gene Shoemaker NEO Grant" by the Planetary Society to support his work on near-Earth asteroids.

[2] The money enabled the purchase of a CCD camera for use initially on a 10" SCT and later on a 20" f/2.7 automated telescope he designed and constructed, with first light occurring 10 April 2004.

Asteroid 24105 Broughton was named in his honour in 2005,[2] and he later won an Australian national award – the 2008 Page Medal.

Discovered 11 April 2004 on the first full night of operations with the 20" telescope, Apollo asteroid (186844) 2004 GA1 is one of only 157 known kilometer-size PHAs and the largest such discovery made by a non-professional astronomer.

[6][7] In 2003 he began observing asteroid occultations by taking trailed CCD exposures and measuring the resulting dips in brightness.