IProperMotion

All Known Subinterfaces:

IStarFocus

All Known Implementing Classes:

NBGalaxy, Particle, Star, StarCluster, StarGroup
```
public interface IProperMotion
```
Any entity which contains a proper motion

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`double`	`getMuAlpha()`	Returns the mu alpha in mas/yr
`double`	`getMuDelta()`	Returns the mu delta in mas/yr
`double`	`getRadialVelocity()`	Returns the radial velocity in km/s

- Method Detail
  - getMuAlpha
```
double getMuAlpha()
```
    Returns the mu alpha in mas/yr
    
    Returns:
    
    The mu alpha in mas/yr
  - getMuDelta
```
double getMuDelta()
```
    Returns the mu delta in mas/yr
    
    Returns:
    
    The mu delta in mas/yr
  - getRadialVelocity
```
double getRadialVelocity()
```
    Returns the radial velocity in km/s
    
    Returns:
    
    The radial velocity in km/s