Psi1 Lupi

It has a yellow-white hue and is faintly visible to the naked eye with an apparent visual magnitude of +4.66.

[2] The star is located at a distance of approximately 207 light years from the Sun based on parallax.

[1] It is a red clump[2] giant, which indicates it is on the horizontal branch and is generating energy through core helium fusion.

The star has an estimated 2.4[5] times the Sun's mass and is radiating 62 times the luminosity of the Sun from its photosphere at an effective temperature of 4,939 K.[1] The star is surrounded by a cold circumstellar envelope, hinted at by the anomaly of the small observed power of the doublet Mg II emission at 2800 angstrom.

The absorption cores on the peaks of the emission profiles Mg II k and h are mainly of interstellar origin and only partly due to self-absorption in the star's chromosphere.