the concerned with the physical and chemical properties of celestial bodies.
The science treating of the physical characteristics of the stars and other heavenly bodies, their chemical constitution, light, heat, atmospheres, etc. It is a branch of astronomy.
The part of astronomy dealing with the physics and chemistry of astronomical objects and events.
That part of the astronomy dealing with the physics of astronomical objects and phenomena.
Field of astronomy concerned with the physical, chemical, and thermal properties of celestial bodies accessible to direct observation and also inferred from theory.
The branch of astronomy concerned with the physical nature of heavenly bodies.
The science of applying the laws of physics to the universe.
The study of the physics and chemistry of the stars.
The subset of astronomy that deals principally with the physics of stars, stellar systems, and interstellar material.
study of physics of astronomical objects and phenomena.
a branch of astronomy dealing with the physical and chemical constitution of the celestial bodies.
Study of the physical nature of the Universe, its objects and the composition of the space between them.
The branch of astronomy that deals with the physics of stellar phenomena.
The physics of astronomical objects such as stars and galaxies.
The branch of astronomy and physics that deals with the physics of astronomical objects.
a branch of astronomy that deals with the physical properties and interactions of celestial bodies---the application of the principles of physics to celestial bodies and phenomena.
Study of the physical and chemical nature of celestial bodies and their environs.
The branch of astronomy that deals with the physics and chemistry of the stars.
Astrophysics is the branch of astronomy that deals with the physics of the universe, including the physical properties (luminosity, density, temperature, and chemical composition) of celestial objects such as stars, galaxies, and the interstellar medium, as well as their interactions. The study of cosmology is theoretical astrophysics at the largest scales where Einstein's general theory of relativity plays a major role.