10 Interesting Stars In The Milky Way
Someone once said to me that, if the Milky Way was New York, the stars we are able to see with our naked eye would be the equivalent of a courtyard.
Our galaxy host billions and billions of stars and it is counted that, for spiral galaxies, the equivalent of 3 solar star masses are born per year.
Today we want to take a look at the most interesting stars in the Milky Way!
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1 Tabby’s Star ( KIC 8462852 )
Officially named KIC 8462852, the star is 1,200 light-years away in the constellation Cygnus and is about 1.4 times the mass of the Sun.
What intrigued astronomers about this star is that a transiting object caused it to dip in light by as much as 20 per cent. Now, usually, planets are responsible for some dips in the light when they pass in front of the star, but 20 per cent was too much.
Mira is not a single star.
It is actually a star system, a binary system, with a large pulsating red giant.
Mira A is the red giant, and Mira B is a much smaller white dwarf. They are companions.
To the naked eye, Mira A is a variable star that essentially disappears and then reappears almost every 11 months.
3) SAO 206462
We have just seen that Mira resemble a comet.
What if I told you there is a star that…looks superficially like a spiral galaxy?
In fact, it is a trait of SAO 206462.
4) BPM 37093
No, it is not referred to a song’s tempo.
BPM 37093 located in the constellation of Centaurus, BPM 37093 is about 50 light-years from Earth. This star was originally thought to be a white dwarf, but it was later found to be incredibly dense.
It has a little bit more mass than our Sun but, it’s way denser, with all the mass compacted down to about a third of the size of the Earth, making it effectively a crystallized star.
5) MY Camelopardalis
A study of the binary system MY Camelopardalis shows that the most massive stars are made up of the merging of smaller stars, as predicted by theoretical models: smaller to bigger.
Most of the stars in the Milky Way formed in binary or multiple systems. MY Camelopardalis (MY Cam), consists of two of the most massive objects known. In fact, its components, two stars of spectral type O, that is blue, very hot and bright, with masses respectively equal to 38 and 32 times the mass of the Sun, are still in the main sequence and are very close.
We live with the concept that the poles of a planet are usually colder than the equator. Can we say the same thing about stars?
Well, telescopic observations in 2006 revealed that Vega is whipping around so quickly that its poles are several thousand degrees warmer than its equator.
7) HD 101065
Within the Centaurus constellation is hiding a southern sky constellation, just beyond what our eyes can see.
And it is a truly weird star.
It’s called HD 101065.
8) HD 140283
The interesting fact about HD 140283 is its age.
The universe is 13.8 billion years old. HD 140283, by all appearances, is 14.4 billion years old. That is a problem with cosmology.
The age estimate is based on its composition, brightness, and distance (the star is 190 light-years away.)
9) CP 1919
In 1967, a radio signal was detected by Jocelyn Bell and Antony Hewish. The signal had a 1.3 second period and 0.04-second pulse width. It originated at celestial coordinates 19h 19m right ascension, +21° declination.
This is the star everybody knows. Why is it important?
Well, “simply” because the Sun is the only star we know that host life, so far!
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