plural of asteroid belt

The period in which the sun is between 12° and 18° below the horizon in the morning and evening.

(informal) Astronomy using observations using telescopes and recording media that capture visible light. / (astronomy) Astronomy using infrared, visible, and/or ultraviolet wavelengths.

(science fiction, transitive, intransitive) To astronavigate; to control and guide a spacecraft.

(nautical) behind

A transparent dome in the fuselage of an aircraft or spacecraft through which navigational observations may be made

plural of astronomical year

plural of astrological sign

The astrology system which is derived from the Hellenistic astrology and is based on the relative positions of, particularly, the twelve zodiacal constellations on the moment of a person's birth.

The astrology system which was developed in China and is based on yin and yang, twelve signs represented by animals, the lunisolar calendar and five planets.