# Q74740389
**Wikidata**: [Q74740389](https://www.wikidata.org/wiki/Q74740389)  
**Source**: https://4ort.xyz/entity/q74740389


## References

1. SIMBAD
2. Physical properties of the current census of northern white dwarfs within 40 pc of the Sun
3. VizieR Online Data Catalog: 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003)
4. The USNO-B Catalog
5. The SDSS Photometric Catalog, Release 7
6. Gaia Data Release 2
7. A spectroscopic survey and analysis of bright, hydrogen-rich white dwarfs