astronomy

The arc of the horizon between the true east or west point and the center of the sun, or a star, at its rising or setting. At the rising, the amplitude is eastern or ortive: at the setting, it is western, occiduous, or occasive. It is also northern or southern, when north or south of the equator.

Pertaining to (outer) space.

The glow seen in the sky after sunset.

An astronomical object in direct orbit around the Sun that is not a planet or a comet.

An arbitrary point on Earth's surface, chosen as the zero for a system of coordinates.

The planet Venus as observed in the eastern sky around dawn.

A cloud of dust surrounding the nucleus of a comet.

(of a source of light) to shine with a flickering light; to glimmer

To reflect light.

A star.

The waxing of the moon.

The apparent visual edge of a celestial body.

Describing a time period inserted between others; leap, (as in leap day, leap month, or leap year)

(with definite article, often capitalized) The constellation Draco.

Latitude that a present‐day location had in a geologic era.

A line of equal or constant solar radiation.

A planet; a natural satellite of a sun.

A moon or other smaller body orbiting a larger one.

In a path near the equator, so that the declination is small, or near the horizon, so that the altitude is small; said of the heavenly bodies with reference to the diurnal revolution.

To become more nearly full; to show more of the surface; to wax.