What is the temperature of the star Achernar?
What is the temperature of the star Achernar?
15,000 KAchernar / Surface temperature
What class of star is Achernar?
B6 VepAchernar / Spectral type
Further south, it is well visible at all times during night. Achernar is a bright, blue star with about seven times the mass of the Sun. It is a main sequence star with a stellar classification of B6 Vep, but is about 3,150 times more luminous than the Sun.
What is Achernar apparent magnitude?
0.445Achernar / Magnitude
What is Achernar luminosity?
3,150 L☉Achernar / Luminosity
Who discovered Achernar star?
European Southern Observatory’s
But, while our sun spins on its axis once about every 25 days, Achernar completes one rotation in slightly more than two days, or nearly 15 times faster than our sun. This fast rotation produces an odd, flattened shape, first discovered by the European Southern Observatory’s Very Large Telescope (VLT) in 2003.
How do I get Achernar star?
From the latitude of these cities (about 25 degrees north), the bottom part of constellation Eridanus the River may be seen just above the southern horizon. It’s from this latitude, or farther south on Earth’s globe, that you can see Achernar, the famous star that marks the end of the constellation Eridanus the River.
What is the flattest star?
star Achernar
Very precise measurements show that the hot, bright star Achernar is the flattest known.
Is Achernar a red giant?
Achernar is a blue main-sequence star with a stellar classification of B6 Vep. It is a spectral type B star. Achernar is the brightest star in the constellation of Eridanus and the ninth brightest star in the night sky.
What is the lifespan of the star Pollux?
The star’s estimated age is 724 million years. Pollux is believed to have started its life as a main sequence star of the spectral type A, but eventually spent its supply of hydrogen and evolved into an orange giant. It will keep getting bigger until it reaches the end of its life cycle.
Is Pollux hotter than the sun?
Draw an imaginary line from Rigel through Betelgeuse to star-hop to Castor and Pollux. Pollux science. Pollux is classified as a “K0 IIIb” star. The K0 means that it is somewhat cooler than then sun, with a surface color that is a light yellowish orange.
What color is the brightest star?
Blue
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.
What kind of star is the Achernar star?
Visual Facts Primary / Proper / Traditional Name Achernar Alternative Names Alpha Eridani, Alf Eri, alf Eri, HD 1014 Spectral Type B3Vp Star Type Be Star Colour Blue
What is the origin of the word Achernar?
History and Etymology for Achernar. borrowed from New Latin Achernar, Acharnar, going back to Medieval Latin Acarnar, transcription of Arabic ākhir an-nahr “end of the river,” rendering its Ptolemaic designation as the bright star at the end of the river (Eridanus)
How big is Achernar compared to the Earth?
Using the original Hipparcos data that was released in 1997, the parallax to the star was given as 22.68000 which gave the calculated distance to Achernar as 143.81 light years away from Earth or 44.09 parsecs. If you want that in miles, it is about 845,405,114,917,534.95, based on 1 Ly = 5,878,625,373,183.61 miles.
Which is faster to spin Achernar or the Sun?
Achernar’s rapid spin also make it difficult to measure the star’s temperature, Kaler said. Measurements vary between 14,500 to 19,300 degrees Kelvin (roughly 25,640 to 34,280 Fahrenheit, or 14,225 to 19,000 Celsius.) Astronomers say the star is bleeding mass much faster than the sun — thousands of times faster, in fact.