Tags: Star.
Zeta Equulei (3 Equulei) is a single star located in the small northern constellation of Equuleus. It is faintly visible to the naked eye at an apparent visual magnitude of 5.6. Based upon an annual parallax shift of 4.24 mas Zeta Equulei is roughly 770 light-years (240 parsecs) distant from Earth give or take an 80 light-year margin of error. At that distance the apparent brightness of the star is diminished by 0.15 in visual magnitude because of extinction from interstellar gas and dust.