Precession Class |
Holds precession angles.
Inheritance HierarchyNamespace: AGI.Foundation.Celestial
Assembly: AGI.Foundation.Models (in AGI.Foundation.Models.dll) Version: 24.2.419.0 (24.2.419.0)
SyntaxThe Precession type exposes the following members.
Constructors| Name | Description | |
|---|---|---|
 | Precession |
Initializes a new instance with the specified parameters.
|
Properties| Name | Description | |
|---|---|---|
 | MeanObliquity |
Gets the mean obliquity of the ecliptic, in radians.
|
| Theta |
Gets the accumulated precession angle theta, in radians, used to tilt the x-y-plane to the mean equator of date.
|
| Z |
Gets the accumulated precession angle z, in radians, used to align the x-axis with the mean equinox of date by rotating
along the mean equator of date.
|
| Zeta |
Gets the accumulated precession angle zeta, in radians, used to align the x-axis toward the direction in which
the pole is to be tilted off of the ICRF z-axis.
|
Methods| Name | Description | |
|---|---|---|
| Equals(Object) |
Indicates whether another object is exactly equal to this instance.
(Overrides ObjectEquals(Object).) |
| Equals(Precession) |
Indicates whether another instance of this type is exactly equal to this instance.
|
| GetHashCode |
Returns a hash code for this instance, which is suitable for use in hashing algorithms and data structures like a hash table.
(Overrides ObjectGetHashCode.) |
| GetType | Gets the Type of the current instance. (Inherited from Object.) |
| ToString | Returns a string that represents the current object. (Inherited from Object.) |
Operators| Name | Description | |
|---|---|---|
  | Equality |
Returns if the two instances are exactly equal.
|
| Inequality |
Returns if the two instances are not exactly equal.
|
Remarks
Precession is represented by three angles: Zeta, Theta, and Z, which
compose a rotation in order of Zeta about the third axis, Theta about the second axis,
and Z about the third axis.
See Also