Color blindness is the inability to discriminate certain colors visually. It may be complete, in which case there is no color sensation and vision is described as monochromatic, or partial where some color discrimination in certain regions of the spectrum is present.
The classic Meteor was the ideal starter air rifle, mid power range of 8 to 9 ft pounds energy, a great stock that seemed to suit whoever picked it up, a good sensitive trigger, add to that its lightweight of around six and a half pounds and its inherent accuracy...BSA had a sure fire winner on its hands!
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.