1. By: Eric Jones

2. 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.

3. Canis Major Constellation

4. 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

5. 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”

6. 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.

7. 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.

8. View from Below

9. Size

10. 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.

11. White Dwarf  Sirius B is in the White Dwarf stage in its life, so it’s well past its prime. HR Diagram Animation

12. Works Cited  http://www.jinaweb.org/movies/siriusmovie.s wf http://www.jinaweb.org/movies/siriusmovie.s wf  http://aspire.cosmic- ray.org/labs/star_life/support/HR_static.swf http://aspire.cosmic- ray.org/labs/star_life/support/HR_static.swf  http://www.topastronomer.com/StarCharts/C onstellations/Canis-Major.php http://www.topastronomer.com/StarCharts/C onstellations/Canis-Major.php