Sunrise by Ensign February 20, 2021 0 Sunrise is defined as the moment the upper edge of the solar disk—called the upper limb—becomes visible above the horizon.
Sunset by Ensign February 20, 2021 0 As the upper edge of the solar disk—called the upper limb—disappears below the horizon, the Sun has set.
Sunspot by Ensign February 20, 2021 0 A temporary dark blemish on the surface of the Sun that is a planet-size region of gas cooler than its ...
Supergiant by Ensign February 20, 2021 0 The stage in a star's evolution where the core contracts and the star swells to about five hundreds times its ...
Superior Conjunction by Ensign February 20, 2021 0 A conjunction that occurs when a planet passes behind the Sun and is on the opposite side of the Sun ...
Superior Planet by Ensign February 20, 2021 0 A planet that exists outside the orbit of the Earth. All of the planets in our solar system are superior ...
Supermassive by Ensign February 20, 2021 0 How we describe objects that have a million times (or more!) than our sun.
Supermoon by Ensign February 20, 2021 0 A term used to describe a full moon that occurs during the Moon's closest approach to the Earth. During a ...
Supernova by Ensign February 20, 2021 0 A star ending its life in a huge explosion. In comparison, a nova is a star that explosively sheds its ...
Supernova Remnant by Ensign February 20, 2021 0 An expanding shell of gas ejected at high speeds by a supernova explosion. Supernova remnants are often visible as diffuse ...
