0
Sirius A and B were never discovered. They have been in the night sky since humanoids first roamed the Earth. Even the dinosaurs would have seen Sirius.
So no one, or creature can be said to have "discovered" Sirius.
Wiki User
∙ 13y ago
Wiki User
∙ 9y agoSirius is the brightest star in the night sky. With a visual apparent magnitude of −1.46, it is almost twice as bright as Canopus, the next brightest star. The name "Sirius" is derived from the Ancient Greek: Σείριος Seirios("glowing" or "scorcher"). The star has the Bayer designation Alpha Canis Majoris (α CMa). What the naked eye perceives as a single star is actually a binary star system, consisting of a white main-sequencestar of spectral type A1V, termed Sirius A, and a faint white dwarf companion of spectral type DA2, called Sirius B. The distance separating Sirius A from its companion varies between 8.2 and 31.5 AU.
Sirius appears bright because of both its intrinsic luminosity and its proximity to Earth. At a distance of 2.6 parsecs (8.6 ly), as determined by the Hipparcos astrometry satellite, the Sirius system is one of Earth's near neighbors. Sirius is gradually moving closer to the Solar System, so it will slightly increase in brightness over the next 60,000 years. After that time its distance will begin to recede, but it will continue to be the brightest star in the Earth's sky for the next 210,000 years.
Add your answer:
Earn +20 pts
Is Sirius A a nearby galaxy?
Sirius is the brightest star in the night sky of earth not a galaxy
Which star has the less absolute magnitude rigel or Sirius?
Sirius has less absolute magnitude than Rigel. Sirius is smaller and less luminous than Rigel, but much closer to us, so Sirius appears brighter. Sirius, in fact, is the brightest star in our sky (with the exception of our own star, the sun.) Rigel is still pretty bright, but many times farther away from us than Sirius.
Why is Sirius known as the Dog Star?
Not just Sirius - all stars do this. This is due to changes in density in our atmosphere.Not just Sirius - all stars do this. This is due to changes in density in our atmosphere.Not just Sirius - all stars do this. This is due to changes in density in our atmosphere.Not just Sirius - all stars do this. This is due to changes in density in our atmosphere.
Does Sirius have exoplanets?
Not that we know of.
Is Sirius part of our solar system?
No, Sirius is not part of our solar system. The only star in our solar system is the sun.
What is the sirius star?
Look up the Wikipedia article, "Sirius", for more details. Briefly, it is: the brightest star in the sky (however, some planets, which also look like stars, are brighter); 8.6 light-years away; a double star; one of the components (Sirius B) was the first white dwarf to be discovered.
What relation is Sirius to Harry Potter?
Sirius is Harry's godfather. Sirius Black is Harry's godfather.Harry is sirius's Godson.
Is 'Sirius C' real or not?
It is not real. Sirius is a two-star system containing only Sirius A and Sirius B.
Who discovered Sirius?
It can be argued that Harry did, because he SAW Sirius before getting on the Knight Bus. He didn't know then, however, that the dog he saw was Sirius. He just thought it was a dog. After he learned who Siruis Black was however, the first one to see Sirius was Ron. Peter Pettigrew, disguised as Ron's rat, Scabbers, led him into the Whomping Willow and then Harry and Hermione followed.
How far apart are Sirius A and Sirius B?
Sirius is a binary star system Sirius A and Sirius B.The distance separating Sirius A from B varies between 8.1 and 31.5 AU. (See related question).
Is Sirius a giant?
No. Sirius consists of two stars. Sirius A is larger than the sun but is not a giant. Sirius B is a white dwarf,
Is Sirius a a white dwarf?
No, but Sirius B is,
What was name of the Chicago Bulls 2010-11 Intro Song?
The Alan Parsons Project - Sirius
Where is Sirius b located in the night sky?
Sirius, which consists of both Sirius A and Sirius B is in the constellation Canis Major, which, if you are looking south, appears below and to the left of Orion. Sirius B itself is too dim to be seen from Earth; the vast majority of the light from Sirius is from Sirius A. Even then, as a binary system, the two stars are too close together for us to see them separately.
What is the apperant magnitude of Sirius?
Sirius is actually a binary star system. Sirius A has an apparent magnitude of -1.46 whereas Sirius B has an apparent magnitude of 8.3
Is Sirius black a dementor?
No. Sirius black is a human.
What is Sirius Surface temperature?
what is the sirius surface temperature
