Symbols:Greek/Lambda/Celestial Longitude
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Celestial Longitude
- $\lambda$
Let $P$ be a point on the celestial sphere.
Let $J$ be a great circle on the celestial sphere passing through $P$ and both of the north ecliptic pole and south ecliptic pole.
The celestial longitude $\lambda$ of $P$ is the (spherical) angle (measuring east) that $J$ makes with the vernal equinox.
It ranges from $0$ to $360 \degrees$.
The $\LaTeX$ code for \(\lambda\) is \lambda
.
Sources
- 1998: David Nelson: The Penguin Dictionary of Mathematics (2nd ed.) ... (previous) ... (next): celestial longitude (ecliptic longitude)
- 1998: David Nelson: The Penguin Dictionary of Mathematics (2nd ed.) ... (previous) ... (next): ecliptic coordinate system
- 2008: David Nelson: The Penguin Dictionary of Mathematics (4th ed.) ... (previous) ... (next): celestial longitude (ecliptic longitude)
- 2008: David Nelson: The Penguin Dictionary of Mathematics (4th ed.) ... (previous) ... (next): ecliptic coordinate system