Go to the website http://iopscience.iop.org/article/10.3847/0004-637X/830/1/17 (this link will only
work from on campus).

1. What is the period of the orbit of your star?
2. What is the mass of the object your star is orbiting? Show your work.
3. What is the Schwartzchild radius of the object your star is orbiting? Show your work.
4. How far is your star from the object at perihelion?
5. How many Schwartzchild radii is that?