StdOfRest

Standard of rest

Description:

This attribute identifies the standard of rest to which the spectral axis values of a SpecFrame refer, and may take any of the values listed in the " Standards of Rest" section (below).

The default StdOfRest value is " Helio" .

Type:
String.

Applicability

SpecFrame
All SpecFrames have this attribute.

Standards of Rest

The SpecFrame class supports the following StdOfRest values (all are case-insensitive):

Where more than one alternative System value is shown above, the first of these will be returned when an enquiry is made.