Answers From Experts & Organizations (1) SUCCESS! A. By definition, a hematoma is a collection of blood outside of a blood vessel. It occurs because the wall of a blood vessel wall, artery, vein or capillary, has been damaged and blood has leaked into tissues where it does not belong.
Deneb's absolute magnitude is currently estimated as â8.4, placing it among the most luminous stars known, with an estimated luminosity nearly 200,000 times that of the Sun. This is towards the upper end of various published values over the last few decades.
CY Canis Majoris is the largest knows star that we know of, it is about 500,000 times bigger than our sun. If we were traveling on the surface of that star going 900 KPH it would take us 1,100 years. Jasen Â· 8 years ago