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what's up for October 10 amazing sights

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in the sky hello and welcome I'm Jane

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Houston Jones at NASA's Jet Propulsion

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Laboratory in Pasadena California to

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celebrate the 100th episode of what's up

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I want to share with you some of my

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favorite celestial things luckily

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October is a great month to see them all

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number 10 as the Sun sets watch its

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color the thick atmosphere absorbs most

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colors of sunlight but red light is

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absorbed the least rarely green flashes

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can be seen just above the sun's edge

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just as the last sliver of the disk

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disappears below the horizon number 9

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just after sunset turn around and face

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east you'll soon see a dark shadow move

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up from the horizon and gradually cover

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the pinkish sky this is called the earth

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shadow or the belt of Venus Earth itself

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is blocking the sunlight number 8 also

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just after sunset or before dawn you may

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see rays of sunlight spread like a fan

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these are crepuscular rays formed when

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sunlight streams through gaps in the

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clouds or mountains number 7 the bright

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flowing lights of the aurora borealis or

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Northern Lights are the result of

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collisions between gaseous particles in

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Earth's atmosphere and charged particles

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released from the Sun the different

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colors you can see are due to the type

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of gas being struck by particles of the

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solar wind yellow-green Aurora and red

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Aurora are produced by oxygen molecules

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and purple or blue is from nitrogen you

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can find out when and where to expect

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Aurora at the Space Weather Prediction

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number six the Andromeda galaxy is one

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of the few galaxies you can actually see

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with your naked eye in October look

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nearly overhead after sunset the galaxy

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is more than twice the apparent width of

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the Moon number five mid-october nights

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are excellent nights to view the

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features on the moon such as the Sea of

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Tranquility and the site of the nineteen

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sixty-nine Apollo 11 landing number for

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this month the European Space Agency's

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Rosetta mission target comet 67p

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churyumov-gerasimenko is still bright

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enough for experienced astronomers to

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pick out in a dark sky on october ninth

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you may be able to spot it in the east

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near the crescent moon and Venus number

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three there are meteor showers galore

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this month on the 9th the faint

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slow-moving Draco nets on the 10th the

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slow super-bright turrets and on the

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21st the Swift and brighter Ryan it's

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from the dust of comet Halley number two

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on october 28th you'll find a tight

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grouping of jupiter venus and mars in

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the eastern sky before sunrise and

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number 1 i'll end this list with my very

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favorite astronomical site is a dire

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cold light it's a faint triangular glow

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seen from a dark sky after sunset or

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before sunrise what we're seeing is

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sunlight reflecting off dust grains that

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circle the Sun in the inner solar system

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these dust grains travel in the same

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plane called the ecliptic as the moon

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and planets as they journey across our

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sky you can find NASA tools and

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resources for armchair astronomy and

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solar system and deep-sky observing at

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solar system NASA gov / start toolbox

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and you can learn about all of NASA's