Eta Sculptoris

It is visible to the naked eye as a faint, red-hued star with an apparent visual magnitude that fluctuates around 4.81.

[5] The star is located approximately 460 light years from the Sun based on parallax, and is drifting further away with a radial velocity of +12 km/s.

[4] With the supply of hydrogen at its core exhausted, the star has cooled and expanded.

[1] Eta Sculptoris is classified as a semiregular variable with a visual magnitude that fluctuates between +4.80 and +4.90,[2] The pulsations have periods of 22.7, 23.5, 24.6, 47.3, 128.7 and 158.7 days.

[11] On average, this star is radiating over a thousand times the luminosity of the Sun from its enlarged photosphere at an effective temperature of 3,641 K.[1]

A light curve for Eta Sculptoris, plotted from MASCARA data folded with the best-fit period of 24.22 days [ 10 ]