| alt.2 |
abbreviation of "altitude," the height of a given object or location above a specified base, such as sea level or earth, esp. the angular distance of a celestial body, measured from the horizon. |
| altitude |
in astronomy, the angular distance of a celestial body, measured from the horizon. [1/4 definitions] |
| azimuth |
an arc measured horizontally and clockwise from a point north, in navigation, or a point south, in astronomy, to another point where a vertical circle intersects the horizon. [1/2 definitions] |
| cityscape |
any view of a city, esp. one in which the buildings are viewed against the horizon. [1/2 definitions] |
| go down |
to disappear from sight below the horizon; set. [1/5 definitions] |
| horizonless |
combined form of horizon. |
| horizontal |
parallel to the horizon or to the earth; ninety degrees from vertical. |
| level |
being on a line with the horizon or parallel to the ground. [1/15 definitions] |
| Milky Way |
the galaxy that contains the earth, the sun, and the solar system, and that is visible in the night sky as a long ribbon of cloudlike clusters of stars from one horizon to the other. |
| moonrise |
the appearance of the moon above the earth's horizon, or the time at which this occurs. |
| moonset |
the dropping of the moon below the earth's horizon, or the time at which this occurs. |
| polar night |
in polar regions, the time of the year when the sun does not rise above the horizon, esp. a period of 24 hours or more when there is no twilight. |
| rise |
to ascend upward from behind the horizon. [2/24 definitions] |
| set |
to go below the horizon; sink. [1/25 definitions] |
| skyline |
the line formed by the apparent boundary between the earth and the sky; horizon. [1/2 definitions] |
| sundown |
the time when the sun sinks below the horizon; sunset. |
| sunrise |
the moment each day at which the sun first becomes visible above the eastern horizon. [2 definitions] |
| sunset |
the moment each day when the sun disappears below the western horizon. [2 definitions] |
| twilight |
the faint light of the sky when the sun is below the horizon either after sunset or just before sunrise. [1/7 definitions] |
| up |
above the horizon. [1/34 definitions] |
| uprise |
to appear, esp. from below the horizon; rise. [1/6 definitions] |