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.
Teegardenâs star, a recent discovery in the constellation of Aries, is one of Sunâs closest neighbors around 12 light years away. It appears to be a red dwarf, a class of low temperature and low luminosity stars.This would explain why it was not discovered earlier, since it has an apparent magnitude of only 15.4!eta shines at magnitude 2.7 and it is located 60 light years from Earth. Back at the turn of the 20th century it was discovered to be a spectroscopic binary, with a period of 106 days.