Astronomy
Natural science that studies celestial objects and phenomena.
- Astronomy500 related topics
Cosmology
Branch of metaphysics dealing with the nature of the universe.
In the science of astronomy it is concerned with the study of the chronology of the universe.
Astrometry
Astrometry is a branch of astronomy that involves precise measurements of the positions and movements of stars and other celestial bodies.
Astronomical object
Naturally occurring physical entity, association, or structure that exists in the observable universe.
In astronomy, the terms object and body are often used interchangeably.
Indian astronomy
Astronomy has long history in Indian subcontinent stretching from pre-historic to modern times.
Chemistry
Scientific study of the properties and behavior of matter.
The word chemistry comes from a modification of the word alchemy, which referred to an earlier set of practices that encompassed elements of chemistry, metallurgy, philosophy, astrology, astronomy, mysticism and medicine.
Observational astronomy
Observational astronomy is a division of astronomy that is concerned with recording data about the observable universe, in contrast with theoretical astronomy, which is mainly concerned with calculating the measurable implications of physical models.
Astronomer
An astronomer is a scientist in the field of astronomy who focuses their studies on a specific question or field outside the scope of Earth.
Observatory
Location used for observing terrestrial, marine, or celestial events.
Astronomy, climatology/meteorology, geophysical, oceanography and volcanology are examples of disciplines for which observatories have been constructed.
Ancient Greek astronomy
Greek astronomy is astronomy written in the Greek language in classical antiquity.
Geocentric model
In astronomy, the geocentric model (also known as geocentrism, often exemplified specifically by the Ptolemaic system) is a superseded description of the Universe with Earth at the center.