The edge of the Sun's disk
The edge of the solar disc.
the apparent edge of the Sun, Moon, or a planet or any other celestial body with a detectable disc.
The edge of a planet from the observer's vantage point. From the Latin limbus, meaning edge or border.
(astronomy) the circumferential edge of the apparent disc of the sun or the moon or a planet
The edge of the solar disk.
Upper and lower points of tangency on the circumference of the sun or moon.
the edge of the apparent disc of a celestial object
a part towards the edge as opposed to the central part or disc; the expanded portion of a sepal, petal or leaf.
The outer edge of the disc of a celestial body.
The outer edge of a planetary disk.
the apparent edge of a celestial object
The outer edge or border of a planet or other celestial body.
The edge of a planet or moon. The upper limb is the first part of it to become visible or the last part to disappear from view.
The outer edge or a portion of the edge of a celestial body such as the Moon, Venus, or the Sun, as seen from a distance.
The edge of the apparent disk of a body, as in the "limb of the moon".
the outermost part or edge of a circular or part-circular instrument carrying a scale, usually divided in degrees.
The edge of the Sun or planet visible to an observer or instrument.
The outer edge of the apparent disk of a celestial body.
the edge of a celestial object's visible disk.
The very edge of the visible disc of the Sun, Moon or a planet.