closest orbital approach to the Sun

For elliptical orbits, perihelion means closest orbital approach to the Sun, and aphelion means furthest orbital distance from the Sun.

the point in the orbit

‘Perihelion’ is the point in the orbit of a planet or other body where other body is nearest to the sun.

a term used to call the closest point of a comet’s orbit to the sun

Perihelion is a term used to call the closest point of a comet’s orbit to the sun.

the point in the orbit of a planet, minor planet, or comet, where cometis nearest to comet's orbital focus, generally a star

The perihelion is the point in the orbit of a planet, minor planet, or comet, where cometis nearest to comet's orbital focus, generally a star.

The closest point in a comet’s orbit to the Sun

The closest point in a comet’s orbit to the Sun is called “perihelion”.

The point at which the Earth passes closest to the sun

The point at which the Earth passes closest to the sun is called perihelion, and the point furthest from the sun is called aphelion.

at which an object is the closest to the sun

A perihelion is the point at which an object is the closest to the sun.

the point in the orbit of a planet, asteroid, comet or other star orbiting body where other star orbiting body is nearest to other star orbiting body's star

The perihelion is the point in the orbit of a planet, asteroid, comet or other star orbiting body where other star orbiting body is nearest to other star orbiting body's star.