navigational triangle - meaning and definition. What is navigational triangle
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What (who) is navigational triangle - definition


Navigational triangle         
  • PZX triangle. Due to the Russian-language source, the "X" point is marked as "R".
  • RPM triangle. Here "M" is the celestial body ("X") and "R" is the ecliptic north pole; "P" is still the Earth rotational north pole. This is not for navigation, but for showing the difference between [[astronomical coordinate systems]] – ecliptic and equatorial in this case.
  • GPR triangle. "R" is the body in question, "G" is the Earth's north pole, and "P" is the galactic north pole. This is not for navigation, but for showing the difference between astronomical coordinate systems – galactic and equatorial in this case.
SPHERICAL TRIANGLE USED IN ASTRONAVIGATION
Pzx triangle; PZX triangle; Navigation triangle; Navigation triangle (spherical geometry); Navigational triangle (spherical geometry); PZR triangle; RPM triangle; GPR triangle
The navigational triangle or PZX triangle is a spherical triangle used in astronavigation to determine the observer's position on the globe. It is composed of three reference points on the celestial sphere:
equilateral         
  • An equilateral triangle. It has equal sides (<math>a = b = c</math>), equal angles (<math>\alpha = \beta =\gamma</math>), and equal altitudes (<math>h_a = h_b = h_c</math>).
  • Construction of equilateral triangle with compass and straightedge
  • 3}}/2}}.
  • The equilateral triangle tiling fills the plane.
  • A regular tetrahedron is made of four equilateral triangles.
GEOMETRIC SHAPE WITH THREE SIDES OF EQUAL LENGTH
Equilateral triangles; Equalangular triangle; Equiangular triangle; Equilateral Triangles; Equilateral Triangle; Regular Triangle; Regular triangle; Equalateral triangle; Equilateral; Isopleuron
[?i:kw?'lat(?)r(?)l, ??kw?-]
¦ adjective having all its sides of the same length.
Origin
C16: from Fr. equilateral or late L. aequilateralis, from aequilaterus 'equal-sided' (based on L. latus, later- 'side').
Subclavian triangle         
SMALLER DIVISION OF THE POSTERIOR TRIANGLE
Omoclavicular triangle; Supraclavicular triangle
The subclavian triangle (or supraclavicular triangle, omoclavicular triangle, Ho's triangle), the smaller division of the posterior triangle, is bounded, above, by the inferior belly of the omohyoideus; below, by the clavicle; its base is formed by the posterior border of the sternocleidomastoideus.