Wolf 1346

This is a young, non-magnetic^[8] white dwarf with an age of 60 million years. It is a little less than two-thirds the mass of the Sun and just 1.4% the radius, that is 1.5 times the size of Earth or 9,670 km (6,010 mi). With an effective temperature of 21,608 K (21,335 °C; 38,435 °F), it shines with 3.3% of the Sun's luminosity. It belongs to the thin disk of the Milky Way.^[11] There is marginal indication that the star is orbited by a binary companion.^[12]

It has the spectral type DA2.4,^[3] indicating that the atmosphere is dominated by hydrogen, which is the only element whose spectral lines show up in the star's visible spectrum.^[13] It has been subject to multiple ultraviolet spectroscopic observations. Silicon lines were discovered in 1984 from spectra obtained by the International Ultraviolet Explorer.^[14] The abundance of silicon in the photosphere has been measured at log(Si/H)=−7.5 ± 0.2,^[13] which, compared to the solar value of log(Si/H)=−4.5,^[14] is approximately one thousand times less. This amount is comparable to what is expected from radiative levitation.^[13] Carbon, nitrogen, and oxygen are absent in the spectra, consistent with theories of element diffusion.^[15] Observations by the Hopkins Ultraviolet Telescope revealed that the Lyman-beta line shows signs of the dihydrogen cation (H₂⁺), which, in cooler DA white dwarfs, causes similar signatures in the Lyman-alpha line.^[16]