# TT Herculis
**Wikidata**: [Q87782014](https://www.wikidata.org/wiki/Q87782014)  
**Source**: https://4ort.xyz/entity/tt-herculis


## References

1. SIMBAD
2. VizieR
3. MK classifications of some northern hemisphere binary systems
4. New β Lyrae and Algol Candidates from the Northern Sky Variability Survey
5. Up-to-date linear elements of eclipsing binaries
6. VizieR Online Data Catalog: 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003)
7. The Tycho-2 catalogue of the 2.5 million brightest stars
8. Gaia Early Data Release 3
9. Astrophysical supplements to the ASCC-2.5: Ia. Radial velocities of ∼55000 stars and mean radial velocities of 516 Galactic open clusters and associations
10. Gaia Data Release 2