Astronomical Point

Astronomical Point

 

(also astropoint), a point on the earth’s surface whose latitude, longitude, and azimuth of direction relative to some terrestrial object are determined by astronomical observations. At certain astronomical points, one or another of these quantities may be left undetermined. If the astronomical point coincides with the trian-gulation point and all three astronomical quantities are defined for it, it is called a Laplace point. In the triangulation of classes I and II in the USSR, astronomical points are determined at 70–100 km intervals. Besides ordinary astronomical points, there are basic reference points at which the astronomical longitude is determined with particular accuracy and thoroughness. They are used to determine the personal errors of an observer.

References in periodicals archive ?
There are half a dozen or so possible explanations for the star of Bethlehem which have been put forward from an astronomical point of view.
From the chemistry we can also say that this change happened within the last 100-1000 years - that is to say, very recently from an astronomical point of view.
In spring it's the galaxy, and in autumn it's the Milky Way - from an astronomical point of view, you see different objects.
From an astronomical point of view, the only thing happening that day is the winter solstice," Ms.
In its statement, the Ministry said such information is inaccurate and do not represent the Ministry either from astronomical point of view or from the Sharia point of view.
These are interesting eclipses from an astronomical point of view," said Al-Mostafa.
From an astronomical point of view, winter's midpoint is today, not two days ago.
The pagan Prichards would have seen the September equinox - an astronomical point whose name comes from the Latin meaning equal night - as something truly special.
An equinox is an astronomical point that occurs when the sun crosses the equator on its journey, and we experience a day and a night that are of equal length.
From an astronomical point of view, it is almost impossible to imagine the Hubble Space Telescope being any better than it's been for the last three years, but you guys have made it so,'' said Hoffman, an astronaut-astronomer who took part in the 1993 mission to fix Hubble's blurred vision.

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