# Q89444633
**Wikidata**: [Q89444633](https://www.wikidata.org/wiki/Q89444633)  
**Source**: https://4ort.xyz/entity/q89444633


## References

1. SIMBAD
2. A photometric selection of white dwarf candidates in Sloan Digital Sky Survey Data Release 10
3. The SDSS Photometric Catalog, Release 7
4. The WIRED survey. II. Infrared excesses in the SDSS DR7 white dwarf catalog
5. Gaia Data Release 2
6. The binary fraction of low-mass white dwarfs
7. Spectral analysis of 636 white dwarf-M star binaries from the Sloan Digital Sky Survey
8. SDSS DR7 white dwarf catalog