a zodiacal constellation between Virgo and Serpens also called the Balance
the small circle of the celestial sphere whose plane is tangent to the earth at the position of the observer
any of the small bodies, often remnants of comets, traveling through space: when such a body enters the earth's atmosphere it is heated to luminosity and becomes a meteor
the Ram, a zodiacal constellation between Pisces and Taurus
the partial or imperfect shadow outside the complete shadow of an opaque body, such as a planet, where the light from the source of illumination is only partly cut off
a celestial body with a mass of gas that is hot enough to produce and sustain nuclear fusion, thus producing luminosity