# Q74863632
**Wikidata**: [Q74863632](https://www.wikidata.org/wiki/Q74863632)  
**Source**: https://4ort.xyz/entity/q74863632


## References

1. SIMBAD
2. A Catalog of Spectroscopically Confirmed White Dwarfs from the Sloan Digital Sky Survey Data Release 4
3. An initial survey of white dwarfs in the Sloan Digital Sky Survey
4. SDSS DR7 white dwarf catalog
5. A catalog of spectroscopically identified white dwarf stars in the first data release of the Sloan Digital Sky Survey
6. On the spectral evolution of cool, helium-atmosphere white dwarfs: detailed spectroscopic and photometric analysis of DZ stars
7. The Sixth Data Release of the Sloan Digital Sky Survey
8. The SDSS Photometric Catalog, Release 7
9. Gaia Data Release 2