Yakut legend in ancient Mongolia called comets "the daughter of the devil," and warned of destruction, storm and frost, whenever she approaches the earth.http://deepimpact.umd.edu/science/comets-cultures.html
http://www.nasa.gov/mission_pages/deepimpact/media/f_ancient.htmlTypes of cometary forms, illustrations from Johannes Hevelius' Cometographia (Danzig, 1668)
http://www.bayeuxtapestry.org.uk/Long Live The King - Scene 1Halley’s comet is top, center, the day Edward’s funeral and Harold’s corronation. The ships at bottom portend the coming Norman invasion.Supposedly, William the conqueror saw the comet and took it as a sign that it was time to invade England.
Messier’s list of 110 fuzzy objects that weren’t comets (also found 44 comets, about 20 of which were true discoveries)
This image is from Harvard, but many observations were made at the Detroit Observatory
Captured using the single prism spectrograph on the 34-1/2” at the Detroit Observatory. http://articles.adsabs.harvard.edu//full/1923POMic...3..264C/0000295.000.html
http://www.wondersandmarvels.com/2010/12/con-men-and-comets.htmlMass of Halley’s comet:1014 kgMass of Earth’s atmosphere: 5x1018 kgThe amount of air on Earth is 50,000 times greater than the entire mass of Halley’s comet!
Goodrich & Ward, “The Formation of Planetesimals” 1973
http://neo.jpl.nasa.gov/images/halley.htmlLumpy, dark, lots of organics, lots of water, localized jets
journal Meteoritics and Planetary Science; August 2009, Jamie Elsilahttp://www.nasa.gov/mission_pages/stardust/news/stardust_amino_acid.htmlan amino acid used to build proteins
Comets can bring disaster
But most bring beauty
And we wouldn’t be here without them
Comets - history and exploration
History and Exploration
You are living on the plains 5000 years ago
Each evening as it gets dark, you go out and watch the
Comet 1913 f, Delavan
Publications of the Astronomical Observatory of the University of
Michigan ; v. 3, Ann Arbor : The University, 1923
Cyanogen gas found in Halley’s comet
Earth would pass through the comet’s
Questions only comets could
How do planets / the solar system form?
What materials were available to build planets?
Where did Earth’s water come from?
Explorer was designed
to study the Sun-earth
environment, but had
the chance to fly
through GiacobiniZinner’s tail!
Pelted by dust grains
Life from comets?
have brought the
molecules in to
the inner solar
Matthew Genge / Imperial College London
Most observed comet ever
In addition to ground based observers, including amateurs,
many spacecraft watched the comet
Mike Hankey, Nov. 15, 2013, Auberry, California.
End of ISON
Nov 28, 2013
Rendezvous on January 20,
2014 with comet
Obit until November, then
send a lander