# Q74717493
**Wikidata**: [Q74717493](https://www.wikidata.org/wiki/Q74717493)  
**Source**: https://4ort.xyz/entity/q74717493


## References

1. SIMBAD
2. SDSS DR7 white dwarf catalog
3. DA white dwarfs in Sloan Digital Sky Survey Data Release 7 and a search for infrared excess emission
4. A photometric selection of white dwarf candidates in Sloan Digital Sky Survey Data Release 10
5. Gaia Data Release 2
6. The USNO-B Catalog
7. The SDSS Photometric Catalog, Release 9