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.
The star Deneb is the farthest star that can be easily seen with the naked eye. It is thought to be between 1,400 and 3,000 light years from Earth. Deneb is one of the brightest in the northern sky and is part the constellation Cygnus, the Swan. The Sun is the closest star to the planet Earth. The Earth orbits the Sun at a distance of about 93 million miles.