# Q81823844

> white dwarf in the constellation Hercules

**Wikidata**: [Q81823844](https://www.wikidata.org/wiki/Q81823844)  
**Source**: https://4ort.xyz/entity/q81823844


## References

1. SIMBAD
2. DA white dwarfs in Sloan Digital Sky Survey Data Release 7 and a search for infrared excess emission
3. SDSS DR7 white dwarf catalog
4. Spectral types for 26 objects in the Kiso survey
5. Spectral types for objects in the Kiso survey. III. Data for 102 stars
6. A high galactic latitude survey of far-ultraviolet excess objects.
7. A photometric selection of white dwarf candidates in Sloan Digital Sky Survey Data Release 10
8. VizieR Online Data Catalog: 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003)
9. Fourth USNO CCD Astrograph Catalog
10. U BV RI photometric standard stars around the sky at +50 deg declination
11. The SDSS Photometric Catalog, Release 9
12. The WIRED survey. II. Infrared excesses in the SDSS DR7 white dwarf catalog
13. Gaia Data Release 2
14. Evidence for an external origin of heavy elements in hot DA white dwarfs