Achernar has around
6.3 solar masses
, a radius of about 7.3 x 11.4 solar radii, and an average diameter of more than 10 times that of our Sun. Achernar spins around 15 times faster than our sun, completing one rotation in around 2 days.
Is achernar a white dwarf?
| Star System Spectra & Luminosity Distance (light-years) | CD-51 311 F5 V 19 |
|---|
How big is achernar?
Achernar has around
6.3 solar masses
, a radius of about 7.3 x 11.4 solar radii, and an average diameter of more than 10 times that of our Sun. Achernar spins around 15 times faster than our sun, completing one rotation in around 2 days.
What type of star is Achernar?
| Star System Spectra & Luminosity Distance (light-years) | CD-51 311 F5 V 19 |
|---|
How long will achernar last?
Achernar (Arabic for “end of the river”) is 144 light-years from Earth. It is a binary star
What is the flattest star?
Very precise measurements show that the hot, bright
star Achernar
is the flattest known.
Is Pollux the North star?
Pollux is
6.7 degrees north of the ecliptic
, presently too far north to be occulted by the moon and planets. … Once an A-type main sequence star, Pollux has exhausted the hydrogen at its core and evolved into a giant star with a stellar classification
What color is the brightest star?
Blue stars
tend to be the brightest, and red stars the dimmest. But more experienced observers will encounter red stars at night that are brighter than white or blue ones.
Is Achernar visible from Earth?
The ninth brightest star in all the heavens, Achernar, is a well-known sight to observers in the Southern Hemisphere. … That’s because – despite its magnitude of 0.45, making it shine brightly as
the brightest stars visible from Earth
– it’s extremely far south on the dome of stars surrounding Earth.
How do you pronounce Achernar?
Using English phonetics,
[ EE-ther ] and [ AHY-ther ]
are both correct.
What stage in the life cycle is Achernar in?
Message: Achernar is in
the “main sequence” phase
of its life. This means that deep down in the center of the star, hydrogen fusion is going on. In a hydrogen fusion reaction, atoms of hydrogen are slammed together with amazing force to create helium.
What kind of star is Spica?
Spica is
a bright binary star
How do I get Achernar star?
Achernar is in
the deep southern sky
and never rises above the horizon beyond 33°N, roughly the latitude of Dallas, Texas. It is best seen from the southern hemisphere in November; it is circumpolar above (i.e. south of) 33°S, roughly the latitude of Santiago.
What is meant by a binary star?
Binary stars are
two stars orbiting a common center of mass
. The brighter star is officially classified as the primary star, while the dimmer of the two is the secondary (classified as A and B respectively). In cases where the stars are of equal brightness, the designation given by the discoverer is respected.
Is achernar a binary star?
Achernar is
a bright, binary star system in
the constellation Eridanus, and is the ninth-brightest star in Earth’s night sky. The two stars, Achernar A (seven times the mass of the sun) and Achernar B (which is smaller), rotate about 6.7 Earth-sun distances or astronomical units apart.
Is Alpha Centauri A star?
Alpha Centauri is
the third-brightest star in our night sky
– a famous southern star – and the nearest star system to our sun. Through a small telescope, the single star we see as Alpha Centauri resolves into a double star. This pair is just 4.37 light-years away from us.
