Delta Hydrae is about  from Zeta Hydrae and may be a largely co-moving object. The star has one of the lower-error margin readings among those of the Gaia spacecraft which computes a parallax of 20.7182 ± 0.3925 mas and, if correct, a distance of 157 ± 3 light years.
Delta Hydrae is close to Zeta Hydrae and may be part of the same group. The star has one of the smallest error margins among those measured by Gaia, which calculates a parallax of 20.7182 ± 0.3925 mas and, if accurate, a distance of 157 ± 3 light years.