Elliptical Galaxy by Ensign February 20, 2021 0 A galaxy whose structure shaped like an ellipse and is smooth and lacks complex structures such as spiral arms.
Elongation by Ensign February 20, 2021 0 The angular distance of a planetary body from the Sun as seen from Earth. A planet at greatest eastern elongation ...
Ephemeris by Ensign February 20, 2021 0 A table of data arranged by date. Ephemeris tables are typically to list the positions of the Sun, Moon, planets ...
Equator by Ensign February 20, 2021 0 An imaginary circle around a body which is everywhere equidistant from the poles, defining the boundary between the northern and ...
Equinox by Ensign February 20, 2021 0 The equinoxes are times at which the center of the Sun is directly above the Earth's equator. The day and ...
