ScienceCasts: A Naked-Eye Comet in March 2013

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A comet falling in from the distant reaches of the solar system could become a naked-eye object in early March. This is Comet Pan-STARRS's first visit to the inner solar system, so surprises are possible as its virgin ices are exposed to intense solar heating.

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  Science & Technology

[rocksnstars]

by the shape of its orbit, its eccentricity. Comet Halley's eccentricity is 0.967 and the period is 75.3 years. Ikeya-Zhang, the longest "short" period comet, has an eccentricity of 0.990098 and returns every 366 years. The Great Comet of 1680 has an eccentricity of 0.999986 and a period of approx 10,000 years PanSTARRS eccentricity is 1.00009, which means it will never come back, since an eccentricity greater than 1 is a hyperbolic orbit, not an ellipse, which implies it was not here before

[FallofaThousandSuns]

Google - Fall of a Thousand Suns- for a a cool site on comets listed chronologically by perihelion. All kinds of info, images, videos, etc.

[FallofaThousandSuns]

Comet Halley's obrital period has actually ranged between 75 and 79 years over the past 2,000 years of verifiable observations.

[GeliOver]

Hey it's PLANET HEAVEN not heaven(paradise).

[abhishek rao]

C-data?of-C.A.K.E-&ITCHIES-CUT­.R.A.J.U-aki2.ski4.2.com

India-siddhant-aachran-of-meet­ings-good&bad-lucksProfit$loss­es.aki2.ski4.2.com

Eye starr is miles away?U are in waitinglist.que.or.qatarr.mei.­hei.jai.hanumann.aki2.ski4.2.c­om

[rukksjUngle]

that wasnt a comet it was a meteor

[Alex Paterson]

Sounds like your talking to 4 year olds, You Fail at Comet & meteor warnings, noone trusts you, the veil is torn.

[HorrorMusicSorcerer]

LYING ILLUMINATI SCUM!!!!!!!!!!!!

[flavius22]

0:38 you scan heavens with a telescope? what the hell. Are you an undercover preacher of God?:))

[TheFlyingEagel]

Imange ... John Lennon !

Religion i'ts bad