Transcript Sirius Bx

By: Eric Jones
SIRIUS B
Canis Major Constellation
 Sirius B is a white dwarf star that is apart of
the Canis Major constellation.
 This constellation is best viewed January
through March.
 Its name means “the greater dog” in Latin.
Canis Major Constellation
Facts
 The first known person to see the star was
Alvin Clark in 1862.
 It can’t be seen with the naked eye, you need
a telescope.
 360 times fainter than our Sun
 First white dwarf ever discovered
Facts (cont.)
 It’s part of a binary star system with Sirius A,
which is the brighter star of the two.
 It swings around Sirius A every 50 years.
 Nicknamed the “pup” because it is
companion star to Sirius A, “the Dog Star”
Facts (cont.)
 It has a density about 50,000 times greater
than water.
 It has approximately the same mass of the
sun compacted into an object the size of the
earth.
 It has a surface temperature of 25,000 Kelvin.
Distance from Earth
 It is approximately 8.7 light years away from
planet earth.
 If something happens to the star, it would
take over 8 years for humans on Earth to see
it.
View from Below
Size
X-ray Picture
 This is an x-ray picture of Sirius B.
 The fainter star in the picture is Sirius A,
which is the brightest visible star in the
northern sky.
White Dwarf
 Sirius B is in the White Dwarf stage in its life,
so it’s well past its prime.
HR Diagram
Animation
Works Cited
 http://www.jinaweb.org/movies/siriusmovie.s
wf
 http://aspire.cosmicray.org/labs/star_life/support/HR_static.swf
 http://www.topastronomer.com/StarCharts/C
onstellations/Canis-Major.php