ArcGIS Pro 3.0 API Reference Guide
ArcGIS.Core.Geometry Namespace / AngularUnit Class / Seconds Property

Seconds Property
Gets an angular unit object representing angle in arc-seconds (Factory Code = 9104). An arc-second is equal to 1/60th of an arc-minute.
Syntax
public static AngularUnit Seconds {get;}
Requirements

Target Platforms: Windows 11, Windows 10, Windows 8.1

ArcGIS Pro version: 2.0 or higher.
See Also