Holla fellas!!
Let’s sing a song!!
Today we sing our childhood
song, twinkle-twinkle little star!!
“Twinkle-twinkle
little star, how I wonder what you are.
Up
above the world so high, like a diamond in the sky.
Twinkle-twinkle
little star, how I wonder what you are.”
Do
you know, what is the cause of the twinkling of the star? Stars are turbulence
in the atmosphere of the earth. The light from the star is refracted in
different direction. The star change slightly in brightness and position, hence
it called twinkle. This twinkle condition only sees if you are on the earth,
doing stargazing. In space, you couldn’t see twinkle star because there isn’t
atmosphere or any compound gas in that atmosphere to make the stars’ twinkle.
With unaided eye or naked eye,
we easily see the star. The sky has been mapped by our astronomy in the past.
If you learn about the patterns of the stars, you will never feel lost or get
lost when staring into the vastness of the night sky.
Have
you ever watch the meteor shower while stargazing? Yes, I have once! One time
at Merbabu Mountain. When I was hiking to the top in early morning before adzan
shubuh, I saw the meteor shower!! Not much any in the short time, but that so
amazing!! (I’m not sure, about meteor, star or satellite that I saw before
hahha). After we watched that, that motivated us go faster to reach the top of
the mountain, very soon! You should try this, once a time on your whole life.
And
then, have you ever wonder why the stars are changing color to blue-red-blue when
they twinkle? It because of scintillation as the light passes through the
atmosphere of the Earth. As the air moves in and out, the starlight is
refracted in different colors in every direction. It also because of “chromatic
aberration”, star can appear to change color. So cool right this phenomena!!
You can see the star all over the day. But in the afternoon / day, the star light covered by blue light of the sun, so the stars are lose by the sun! And also because of the star cross the horizon in the day. (sorry if i'm wrong)
Ok that’s enough from today,
byebye…. See ya soon!
If you interest and looking more about something in space,
check out this source:
Earthsky.org
Spaceanswer.com
Skyandtelescope.com
Space.com
Science.nationalgeographic.com
Science.nasa.gov
Curious.astro.cornell.edu
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