the last time halleys comet came was 1986.
the last time halleys comet came was 1986.
when was the last time halleys comet came?
1986
a number of key astronomical events haveoccurred in recent years, most notable are halleys comet (1986), the impact of shoemaker levy on jupiter (1994), mars at its closest encounter (2003), transits of venus (2004, 2012), comet mcnaught (2007), planetary alignments and eclipses. thousands of people came to the observatory to view these through telescopes and to see relevant exhibitions. further the observatory provided information about these events to many more people either directly or through the media.
sydney observatory
by early may 2015 the comet was around apparent magnitude 12 and had an elongation of 60 degrees from the sun as it moved further into the southern hemisphere. the comet came to solar conjunction on 6 november 2015 when the comet was around magnitude 6. the comet came to perihelion (closest approach to the sun) on 15 november 2015 at a distance of 0.82 au from the sun. at perihelion, it had a velocity of with respect to the sun which is slightly greater than the sun's escape velocity at that distance. it crossed the celestial equator on 17 december 2015 becoming a northern hemisphere object. on 17 january 2016 the comet will pass from earth and should be around magnitude 6 while located in the constellation of ursa major.
c/2013 us10