astro-, astr- +

(Greek: star, stars, star shaped; also pertaining to outer space)

The precise measurement of motions and positions of celestial bodies.
astronaut (s) (noun), astronauts (pl)
1. Someone who is trained to travel and to perform tasks in space; literally, a "star sailor".
2. A person trained to pilot, navigate, or otherwise participate as a crew member of a spacecraft.
astronautical (adjective) (not comparable)
A reference to traveling in outer space or the science and technology of space flight.
astronautics (pl) (noun) (a plural which is used as singular)
The science and technology of space flight: Astronautics is the traveling beyond the earth's atmosphere, including interplanetary and interstellar areas.
1. The plotting of a flight vehicle's positin fro within the vehicle by means of sighting on celestial objects.
2. The study of UFOLOGY (UFO = Unidentified Flying Objects) and the possibility of living beings traveling between planets and stars.
astronics pitches
Cosmic sounds related to the psychic energy of the earth that a trained claraudient can hear which refers to a person who has the supposed power to hear things outside the range of normal perception.
1. A physicist who studies astronomy.
2. An expert in astronomy.
3. A scientific observer of the celestial bodies.
astronomers (lexicomedy)
A galaxy of astronomers.
An older term for astrologer
1. Inconceivably large.
2. Relating to or belonging to the science of astronomy.
1. Relating to the science of astronomy.
2. Extremely large: "The cost of this house was astronomical!"
Astronomical Almanac
A book of astronomical facts and tables published annually by the United States Naval Observatory.

Astronomers use the information to locate stars, planets, and asteroids; and to forecast eclipses and lunar phases.

astronomical atlas
A publication about the sky: "The astronomical atlas indicates the positions of stars, galaxies, nebulae, and so on; but not any of the planets."
astronomical camera, astrophysical camera
A camera designed to record astronomical phenomena; such as, stars, nebulae, galaxies, or planets, and the spectra of such phenomena.
astronomical clock
1. A precise pendulum clock with separate dials for seconds, minutes, and hours.

It was originally used by astronomers to calculate astronomical time.

2. A clock indicating the movement of the sun, planets, and other astronomical data.

Links to star words Other "star" units: aster-, sidero-, stell-.

Links to astronomical wordsYou may also see an extensive list of astronomy; astronomical terms at this Get Words site.