# V647 Herculis
**Wikidata**: [Q91819650](https://www.wikidata.org/wiki/Q91819650)  
**Source**: https://4ort.xyz/entity/v647-herculis


## References

1. SIMBAD
2. VizieR
3. A standard stellar spectral sequence in the red/near-infrared - Classes K5 to M9
4. CARMENES input catalogue of M dwarfs. I. Low-resolution spectroscopy with CAFOS
5. Washington Double Star Catalog
6. The rotation and galactic kinematics of mid M dwarfs in the solar neighborhood
7. Fourth USNO CCD Astrograph Catalog
8. VizieR Online Data Catalog: 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003)
9. The Sixth Data Release of the Sloan Digital Sky Survey
10. ASAS photometry of ROSAT sources. I. Periodic variable stars coincident with bright sources from the ROSAT All Sky Survey
11. Gaia Data Release 2
12. Gaia Data Release 2. The catalogue of radial velocity standard stars
13. Near-infrared metallicities, radial velocities, and spectral types for 447 nearby M dwarfs
14. Trumpeting M dwarfs with CONCH-SHELL: a catalogue of nearby cool host-stars for habitable exoplanets and life