Symbols:H/Hour Angle
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Hour Angle
- $\mathrm {HA}$
Used as an abbreviation and to denote the hour angle.
Let $P$ be a point on the celestial sphere.
The hour angle of $P$ is the angular distance measured westwards along the celestial equator from the vernal equinox
The $\LaTeX$ code for \(\mathrm {HA}\) is \mathrm {HA}
.
Sources
- 1998: David Nelson: The Penguin Dictionary of Mathematics (2nd ed.) ... (previous) ... (next): $\mathrm {HA}$
- 2008: David Nelson: The Penguin Dictionary of Mathematics (4th ed.) ... (previous) ... (next): $\mathrm {HA}$