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Astronomy Picture of the Day -- Comet Tails and Star Trails
NASA ^ | July 21, 2015 | (see photo credit)

Posted on 07/21/2015 9:22:38 AM PDT by SunkenCiv

Explanation: After grazing the western horizon on northern summer evenings Comet PanSTARRS (also known as C/2014 Q1) climbed higher in southern winter skies. A visitor to the inner Solar System discovered in August 2014 by the prolific panSTARRS survey, the comet was captured here on July 17. Comet and colorful tails were imaged from Home Observatory in Mackay, Queensland, Australia. The field of view spans just over 1 degree. Sweeping quickly across a the sky this comet PanSTARRS was closest to planet Earth about 2 days later. Still, the faint stars of the constellation Cancer left short trails in the telescopic image aligned to track the comet's rapid motion. PanSTARRS' bluish ion tails stream away from the Sun, buffetted by the solar wind. Driven by the pressure of sunlight, its more diffuse yellowish dust tail is pushed outward and lags behind the comet's orbit. A good target for binoculars from southern latitudes, in the next few days the comet will sweep through skies near Venus, Jupiter, and bright star Regulus.

July 21, 2015

(Excerpt) Read more at 129.164.179.22 ...


TOPICS: Astronomy; Astronomy Picture of the Day; Science
KEYWORDS: apod; astronomy; comet2014q1; jupiter; panstarrs; regulus; science; venus
[Credit and Copyright: Kevin Parker]

1 posted on 07/21/2015 9:22:39 AM PDT by SunkenCiv
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To: brytlea; cripplecreek; decimon; bigheadfred; KoRn; Grammy; steelyourfaith; Mmogamer; dayglored; ...
The Big One

2 posted on 07/21/2015 9:23:28 AM PDT by SunkenCiv (What do we want? REGIME CHANGE! When do we want it? NOW)
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To: SunkenCiv

nothing new on Pluto?


3 posted on 07/21/2015 9:24:19 AM PDT by MNDude (God is not a Republican, but Satan is certainly a Democrat.)
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To: MNDude

Not yet, but Walgreen’s will be opening 40 stores there in the next few years. ;’)


4 posted on 07/21/2015 10:02:07 AM PDT by SunkenCiv (What do we want? REGIME CHANGE! When do we want it? NOW)
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To: SunkenCiv

I’m curious, since space has no oxygen or atmosphere, how is it that a comet has a tail of fire?


5 posted on 07/21/2015 10:04:12 AM PDT by Hot Tabasco (<i>)
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To: Hot Tabasco

https://www.youtube.com/watch?v=34wtt2EUToo&list=PLwOAYhBuU3UfvhvcT1lZA6KbSdh0K2EpH&index=3


6 posted on 07/21/2015 10:10:22 AM PDT by Zuse (I am disrupted! I am offended! I am insulted! I am outraged!)
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To: Hot Tabasco

It doesn’t. Comets don’t have tails of fire.


7 posted on 07/21/2015 10:31:07 AM PDT by SunkenCiv (What do we want? REGIME CHANGE! When do we want it? NOW)
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To: Hot Tabasco
how is it that a comet has a tail of fire?

That tail is really volatiles being boiled off and illuminated by the sun. It isn't fire.

8 posted on 07/21/2015 2:06:18 PM PDT by JoeFromSidney ( book, RESISTANCE TO TYRANNY, available from Amazon)
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