Great Comets from Humble Origins & Eyes on ISON

1. Great Comets from Humble Origins&Eyes on ISON Hubble Science Briefing Dr. Frank Summers November 7, 2013

2. Comet of the Century?

12. Great Comets • Caesar's Comet – 44 BC • Halley's Comet – 1066 • Great Comet of 1106 • Great Comet of 1264 • Great Comet of 1402 • Great Comet of 1556 • Great Comet of 1577 • Great Comet of 1680 • Great Comet of 1744 • Great Comet of 1811 • Great Comet of 1843 • Donati's Comet – 1858 • Great Comet of 1861 • Great Comet of 1882 • Great Daylight Comet of 1910 • Halley's Comet – 1910 • Comet Skjellerup–Maristany – 1927 • Comet Arend–Roland – 1957 • Comet Seki-Lines – 1962 • Comet Ikeya–Seki – 1965 • Comet Bennett – 1970 • Comet West – 1976 • Comet Hyakutake – 1996 • Comet Hale–Bopp – 1997 • Comet McNaught – 2007 • Comet Lovejoy – 2011 Wikipedia

13. Great Comets • “Great Comets in History” • Don Yeomans, April 2007 • 71 since 373 BCE (72 w/ Lovejoy) • 22 appearances of Comet Halley • Characteristics • Tails up to 100 degrees long • Some visible during daylight • Many appear to be sungrazers • Several have broken into pieces • Kreutz family 1843, 1880, 1882, 1887, 1945, 1963, 1965, 1970 • Statistics • 1-3 each century until Renaissance • 1400s – 4 • 1500s – 5 • 1600s – 7 • 1700s – 2 • 1800s – 8 • 1900s – 9 • 2000s – 1

15. The Heart of a Comet

22. Dust in the Solar Wind

28. Play Movie http://lasco-www.nrl.navy.mil/solcd/c2_1mth.mpg

34. Interplanetary Interlopers

43. To the Ends of the Solar System