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How long is a year on Sirius?
Sirius is a star, so it doesn't have an orbit like the planets do. Thus, you can't calculate a year for Sirius. All you can do is estimate its age in Earth years.
What year was Sirius found?
In Harrys third school year i mean the star?
What year was sirius found to be double star?
It was deduced mathematically in 1844 by Bessel, but Sirius B was not seen until 1862 by Alvin Clark.
Is sirius a star or planet?
The star Sirius is not a planet or even a single star but is in fact a binary star, or two stars that orbit each other. Together, these two stars are often called The Dog Star, as they are the brightest object in the constellation Canis Major - or The Big Dog. The stars, named Sirius A and Sirius B, orbit each other about 20 Astronomical Units (the distance from the Sun to the planet Uranus) that takes about 50 years to complete on orbit. Right now, they appear to be moving away from each other and will reach their maximum separation on the year 2019. At a distance of roughly 8.6 light years, the Sirius binary star system is actually relatively close to us. Sirius A (the larger of the two binary stars) is also extraordinarily bright, about 25 time brighter than our sun. These two factors make Sirius one of the top ten brightest stars in our night sky. While Sirius A is very large and bright, Sirius B (the smaller of the two binary stars) is significantly smaller than it's companion - about the size of our Earth. But even at it's small size, Sirius B still has nearly the same mass as our Sun. That much mass in such a tiny space means more surface gravity (about twice that of Sirius A) and more heat (about 2.5 times that of Sirius A). Just because it's small, doesn't mean it's not awesome. Sirius is considered a wintertime star, usually only seen between the months of December and March. It is part of the Winter Triangle asterism along with Betelgeuse and Procyon. So if you're in the Northern Hemisphere and the weather begins to turn cold, take a look into the southern night sky and find Sirius, The Dog Star!
How many kilometers the distance of star in one light year in light years?
The distance of one light year, in light years, is exactly 1.
How many miles is Tau Ceti from Sirius?
The distance between Tau Ceti and Sirius is about 8.6 light-years. Since there are approximately 5.88 trillion miles in one light-year, this means the distance between Tau Ceti and Sirius is approximately 50.808 trillion miles (8.6 x 5.88 trillion).
Scientist recently detected a new born star 100 light years away light from this star takes how many years to reach the earth?
Well the answer is in the question. A light year is the distance it takes light to travel in one year. If something is a 100 light years away, then it will take light ..........
Why are some stars visible in March but not visible in September?
Because, e stars are in the sky in the same time of the year. In March, they appear high above the horizon, and in September they appear low.
How many kilometers away is Sirius B?
I don't know for sure, but it's about 8.7 ligt years away, and a light year is 9.5 trillion kilometers away. if you multiply that, you're bound to get the answer.
What year did the alpha centauri light leave the star?
If you mean the light we see NOW, it left the star about 4.4 years ago, since that is the distance of the star, expressed in light-years.
How old is mira the star in light years?
"Light-year" is NOT a unit of time. It is a unit of length or distance - the distance light travels in a year.
How far in light year is it to the nearest star not sun?
The nearest star to the Sun is Proxima Centauri, a small red dwarf star about 4.2 light years away.
