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FutureStarrFuture of Sirius Star
Sirius XM (NASDAQ:SIRI) is my favorite tech stock. The world's largest satellite radio network has over 25 million subscribers, $6 billion in annual revenue, and 91% gross margins. However, it faces increasing competition from Amazon's (NASDAQ:AMZN) growing library of subscriptions and Apple's (NASDAQ:AAPL) shift to streaming music. Sirius is a discounted proposition these days and it has kept a solid track record of beating expectations.
We found the information about Sirius as a southern pole star in the book “Mathematical Astronomy Morsels V” by the great celestial mechanist Jean Meeus. See pages 353 to 363. Meeus wrote that Sirius will take its turn as the South Pole Star some 60 thousand years from now, around the year 66270. In that year, Sirius will come to within 1.6 degrees of the south celestial pole.
But the Southern Hemisphere will have its close pole star, too. A moderately bright star, not very different in brightness from Polaris, will take its place more or less over the south celestial pole only about 7,000 years from now. Because of precession, the star Delta Velorum in the constellation Vela the Sail will come to within 0.2 degrees of the south celestial pole in the year 9250. That’s closer to marking the celestial pole than Polaris or Sirius ever do during their reigns as pole stars! (Source: earthsky.org)
A pole star is a handy star to have in the sky. Some people mistakenly think Polaris is the sky’s brightest star, because it really is such an important star. It’s not all that bright, though. It’s a modestly bright star in the constellation Ursa Minor, the Lesser Bear. In fact, Polaris marks the end of the handle of the Little Dipper asterism, which lies within the Bear constellation. As our North Star, Polaris stays fixed (relatively speaking), while all the stars of the northern sky wheel around it. That means that – if you know Polaris, and you get lost – this star can help you regain your bearings.
'glowing' or 'scorching'). The star is designated α Canis Majoris, Latinized to Alpha Canis Majoris, and abbreviated Alpha CMa or α CMa. With a visual apparent magnitude of −1.46, Sirius is almost twice as bright as Canopus, the next brightest star. Sirius is a binary star consisting of a main-sequence star of spectral type A0 or A1, termed Sirius A, and a faint white dwarf companion of spectral type DA2, termed Sirius B. The distance between the two varies between 8.2 and 31.5 astronomical units as they orbit every 50 years. (Source: en.wikipedia.org)