Also called: Hematoma, Hemorrhage. Bleeding is the loss of blood. It can happen inside or outside the body. Bleeding can be a reaction to a cut or other wound. It can also result from an injury to internal organs.
Altair or Alpha Aquilae (Alp Aql) is the brightest naked eye star in the constellation Aquila. With an apparent magnitude of 0.76v, Altair is the 12th brightest star in the entire sky (see: 50 Brightest Stars). Its absolute magnitude is 2.2 and its distance is 16.8 light years. The Equinox J2000 equatorial coordinates are RA = 19h 50m 47.0s, Dec = +08Â° 52' 06. Altair has a spectral type of A7V, a surface temperature of 7500Â° Kelvin and a luminosity 10.6 times the Sun.
View full size image. Altair is a bright star in the northern summer sky that is one of the three stars that form an astronomical asterism called the Summer Triangle. The star, which is in the constellation Aquila (the Eagle), is just 16.7 light-years from Earth, making it one of the closest naked-eye stars visible in the sky. It is the 12th brightest star in the night sky with an apparent magnitude of 0.77.