The distance between Polaris (North Star) and Earth is approximately 433 light-years, which is about 4.086 × 10^18 meters. This distance is constantly changing due to the movement of both Earth and the star.
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The absolute magnitude of Polaris is about -3.64. This value represents the intrinsic brightness of the star if it were observed from a standard distance of 32.6 light-years.
Polaris is a Cepheid variable star 430 light years away. It has about five times the Sun's mass and has a diameter more than 40 times greater than the Sun's. Because it's an aged star fusing heavier elements for energy, it's luminosity is very high, some 2,000 times that of the Sun. That is why it shines at 2nd magnitude in our skies even though it's about the same distance from us as the Pleiades. This star is also a triple star, the distant companion being visible in small telescopes and the closer one only detectable with adaptive optics or spectroscopy
Polaris (North Star or Pole Star) has an apparent magnitude of +1.97 (Variable)
the star Yildun is 185 light years away from the sun!
the star Yildun is 185 light years away from the sun!
The distance between Polaris (North Star) and Earth is approximately 433 light-years, which is about 4.086 × 10^18 meters. This distance is constantly changing due to the movement of both Earth and the star.
Zero.Zero.Zero.Zero.
Also known as Delta Ursae Minoris, Yildun is a white A-type main sequence dwarf.
The star Yildun is classified as a white star, which means it emits a white light. White stars are typically hotter than other stars like red or yellow stars.
The current north star, known as Polaris, has a distance estimated at 325-425 light-years. From Wikipedia: "Many recent papers calculate the distance to Polaris at about 434 light-years ... Some suggest it may be 30% closer ..."
The absolute magnitude of Polaris is about -3.64. This value represents the intrinsic brightness of the star if it were observed from a standard distance of 32.6 light-years.
Polaris is a Cepheid variable star 430 light years away. It has about five times the Sun's mass and has a diameter more than 40 times greater than the Sun's. Because it's an aged star fusing heavier elements for energy, it's luminosity is very high, some 2,000 times that of the Sun. That is why it shines at 2nd magnitude in our skies even though it's about the same distance from us as the Pleiades. This star is also a triple star, the distant companion being visible in small telescopes and the closer one only detectable with adaptive optics or spectroscopy
The distance between stars can be anything from light minutes to billions of light years.
Polaris (North Star or Pole Star) has an apparent magnitude of +1.97 (Variable)
The polaris is 430 light years from Earth.