December Birthstone The December birthstone is Blue Topaz. December Birthstone: Blue Topaz Birthstone Color: Blue As cool and inviting as a blue lake on a blistering summer day, December's birthstone is derived from the Sanskrit word tapas, meaning fire.
Auriga. The northern constellation of Auriga is a beautiful, large pentagon shape situated along the Milky Way. It is a curiosity because it has no Gamma star â it shares it with Taurus.
Spica. Spica or Alpha Virginis (Alp Vir) is the brightest naked eye star in the constellation Virgo. With an apparent magnitude of 0.98v, Spica is the 15th brightest star in the entire sky (see: 50 Brightest Stars). Its absolute magnitude is -3.55 and its distance is 262 light years.The Equinox J2000 equatorial coordinates are RA = 13h 25m 11.6s, Dec = -11Â° 09' 41.pica has a spectral type of B1V, a surface temperature of 22,400Â° Kelvin and a luminosity 12,100 times the Sun. It has a mass of 10.3 solar masses and a diameter 7.4 times the Sun. The image above shows the uncropped view of Spica (North is up) through the Takahashi E-180 Astrograph.