Definition of altazimuth in English:

altazimuth

noun alˈtazɪməθælˈtæzəməθ

1Astronomy
A telescope mounting that moves in azimuth (about a vertical axis) and in altitude (about a horizontal axis).
〔天文〕经纬仪天文望远镜的底座（可以水平和垂直旋转）。比较EQUATORIAL MOUNT
Compare with equatorial mount
Example sentencesExamples
- Even with this disadvantage, the altazimuth mounting will be the primary mounting for very large telescopes to be constructed in the future.
- However, in recent years computerized altazimuth mounts have appeared which use motors to automatically compensate for the sky's motion, though these are generally a great deal more expensive.
- Scopes with altazimuth mounts are easy to set up and use, and require no special expertise to use properly.
- While the altitude axis of an altazimuth mount may bend, the bending is constant and can be compensated by realignment of the tube or optics.
- The Dobsonian design is the most popular type of altazimuth mounting used on astronomical telescopes.
1. 1.1 A telescope on an altazimuth mounting.
  Example sentencesExamples
  A lot of my variables are near bright stars or distinctive star patterns; thus easy to find with my noncomputerized altazimuth telescope or binoculars.
  All are fully-steerable altazimuth telescopes capable of pointing and tracking over zenith angles from 1 to 60 degrees.
  Another highly entertaining presentation was by Dennis di Cicco of Sky and Telescope magazine as he described his construction of a 16-inch ‘sidewalk’ altazimuth telescope.
  Of course, everything below about 80 degrees altitude was very easy to find; all altazimuth telescopes have this quirk.
  Since altazimuth telescope mounts usually have a limit in their ability to track high elevation passes through culmination, especially at near-zenith transits because of the large azimuth swings required, the mount can start falling behind.
2A surveying instrument for measuring vertical and horizontal angles, resembling a theodolite but larger and more precise.
地平经纬仪
Example sentencesExamples
- This is an altazimuth theodolite of an improved pattern now used on the Ordnance Survey.

Origin

Mid 19th century: blend of altitude and azimuth.

Definition of altazimuth in US English:

altazimuth

nounalˈtazəməTHælˈtæzəməθ

1Astronomy
A telescope mounting that moves in azimuth (about a vertical axis) and in altitude (about a horizontal axis).
〔天文〕经纬仪天文望远镜的底座（可以水平和垂直旋转）。比较EQUATORIAL MOUNT
Compare with equatorial mount
Example sentencesExamples
- The Dobsonian design is the most popular type of altazimuth mounting used on astronomical telescopes.
- Scopes with altazimuth mounts are easy to set up and use, and require no special expertise to use properly.
- While the altitude axis of an altazimuth mount may bend, the bending is constant and can be compensated by realignment of the tube or optics.
- However, in recent years computerized altazimuth mounts have appeared which use motors to automatically compensate for the sky's motion, though these are generally a great deal more expensive.
- Even with this disadvantage, the altazimuth mounting will be the primary mounting for very large telescopes to be constructed in the future.
1. 1.1 A telescope on an altazimuth mounting.
  Example sentencesExamples
  A lot of my variables are near bright stars or distinctive star patterns; thus easy to find with my noncomputerized altazimuth telescope or binoculars.
  All are fully-steerable altazimuth telescopes capable of pointing and tracking over zenith angles from 1 to 60 degrees.
  Another highly entertaining presentation was by Dennis di Cicco of Sky and Telescope magazine as he described his construction of a 16-inch ‘sidewalk’ altazimuth telescope.
  Since altazimuth telescope mounts usually have a limit in their ability to track high elevation passes through culmination, especially at near-zenith transits because of the large azimuth swings required, the mount can start falling behind.
  Of course, everything below about 80 degrees altitude was very easy to find; all altazimuth telescopes have this quirk.
2A surveying instrument for measuring vertical and horizontal angles, resembling a theodolite but larger and more precise.
地平经纬仪
Example sentencesExamples
- This is an altazimuth theodolite of an improved pattern now used on the Ordnance Survey.

Origin

Mid 19th century: blend of altitude and azimuth.

词汇	altazimuth
释义	Definition of altazimuth in English: altazimuth noun alˈtazɪməθælˈtæzəməθ 1Astronomy A telescope mounting that moves in azimuth (about a vertical axis) and in altitude (about a horizontal axis). 〔天文〕经纬仪天文望远镜的底座（可以水平和垂直旋转）。比较EQUATORIAL MOUNT Compare with equatorial mount Example sentencesExamples Even with this disadvantage, the altazimuth mounting will be the primary mounting for very large telescopes to be constructed in the future. However, in recent years computerized altazimuth mounts have appeared which use motors to automatically compensate for the sky's motion, though these are generally a great deal more expensive. Scopes with altazimuth mounts are easy to set up and use, and require no special expertise to use properly. While the altitude axis of an altazimuth mount may bend, the bending is constant and can be compensated by realignment of the tube or optics. The Dobsonian design is the most popular type of altazimuth mounting used on astronomical telescopes. 1.1 A telescope on an altazimuth mounting. Example sentencesExamples A lot of my variables are near bright stars or distinctive star patterns; thus easy to find with my noncomputerized altazimuth telescope or binoculars. All are fully-steerable altazimuth telescopes capable of pointing and tracking over zenith angles from 1 to 60 degrees. Another highly entertaining presentation was by Dennis di Cicco of Sky and Telescope magazine as he described his construction of a 16-inch ‘sidewalk’ altazimuth telescope. Of course, everything below about 80 degrees altitude was very easy to find; all altazimuth telescopes have this quirk. Since altazimuth telescope mounts usually have a limit in their ability to track high elevation passes through culmination, especially at near-zenith transits because of the large azimuth swings required, the mount can start falling behind. 2A surveying instrument for measuring vertical and horizontal angles, resembling a theodolite but larger and more precise. 地平经纬仪 Example sentencesExamples This is an altazimuth theodolite of an improved pattern now used on the Ordnance Survey. Origin Mid 19th century: blend of altitude and azimuth. Definition of altazimuth in US English: altazimuth nounalˈtazəməTHælˈtæzəməθ 1Astronomy A telescope mounting that moves in azimuth (about a vertical axis) and in altitude (about a horizontal axis). 〔天文〕经纬仪天文望远镜的底座（可以水平和垂直旋转）。比较EQUATORIAL MOUNT Compare with equatorial mount Example sentencesExamples The Dobsonian design is the most popular type of altazimuth mounting used on astronomical telescopes. Scopes with altazimuth mounts are easy to set up and use, and require no special expertise to use properly. While the altitude axis of an altazimuth mount may bend, the bending is constant and can be compensated by realignment of the tube or optics. However, in recent years computerized altazimuth mounts have appeared which use motors to automatically compensate for the sky's motion, though these are generally a great deal more expensive. Even with this disadvantage, the altazimuth mounting will be the primary mounting for very large telescopes to be constructed in the future. 1.1 A telescope on an altazimuth mounting. Example sentencesExamples A lot of my variables are near bright stars or distinctive star patterns; thus easy to find with my noncomputerized altazimuth telescope or binoculars. All are fully-steerable altazimuth telescopes capable of pointing and tracking over zenith angles from 1 to 60 degrees. Another highly entertaining presentation was by Dennis di Cicco of Sky and Telescope magazine as he described his construction of a 16-inch ‘sidewalk’ altazimuth telescope. Since altazimuth telescope mounts usually have a limit in their ability to track high elevation passes through culmination, especially at near-zenith transits because of the large azimuth swings required, the mount can start falling behind. Of course, everything below about 80 degrees altitude was very easy to find; all altazimuth telescopes have this quirk. 2A surveying instrument for measuring vertical and horizontal angles, resembling a theodolite but larger and more precise. 地平经纬仪 Example sentencesExamples This is an altazimuth theodolite of an improved pattern now used on the Ordnance Survey. Origin Mid 19th century: blend of altitude and azimuth.
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