- the branch of astronomy concerned with the physical and chemical properties of celestial bodies
- (astrophysical) of or concerned with astrophysics; "astrophysical sciences"
- (Astrophysicist) A scientist who studies laws that describe the behavior of stars and planets.
- (Astrophysicist) a person that studies the physics of stellar phenomena.
- The part of astronomy that deals principally with the physics of stars, stellar systems, and interstellar material.
- the study of the physics of stars, galaxies, and the interstellar medium.
- Indexed and cross-referenced glossary of Astrophysics terms.
- is a hybrid of Physics and Astronomy that attempts to explain the physical workings of the celestial objects and phenomena. Astrophysics has two subdivisions: theoretical, and applied or experimental.
- Paris majored in astrophysics at the Academy. (Future's End, Part 1)
- Light year: the distance travelled by light in one year .Luminosity: total power radiated by a start .Apparent brightness: power received per unit area .Parsec: is the distance where the parallax angle is one second Absolute magnitude: the apparent magnitude that a star would have if . ...