//[astronomy](../../../index.md)/[io.github.cosinekitty.astronomy](../index.md)/[StateVector](index.md)/[vx](vx.md)

# vx

val [vx](vx.md): [Double](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-double/index.html)

A Cartesian velocity x-component expressed in AU/day.