Star: J2000 Position
The apparent direction of the star from
the scenario's central body, expressed in angles with respect to
J2000 axes.
Type: Time-varying data
Availability: Reports
Name |
Dimension |
Type |
Description |
Time |
DateFormat |
Real Number |
Time. |
Reference Frame |
Unitless |
Text |
The reference frame of the astrometric data: J2000
or ICRF. |
Right Ascension |
LongitudeUnit |
Real Number |
The signed angle measured from the X axis to the
projection of the position vector into the XY plane. The angle
increases in the direction found by the right hand rule about the Z
axis. |
Declination |
AngleUnit |
Real Number |
The signed angle measured from the XY plane to the
position vector, where positive angles are used for locations above
the XY plane, and negative for those below. |
STK Programming Interface 11.0.1