# HD 169820

> star in the constellation Hercules

**Wikidata**: [Q6871076](https://www.wikidata.org/wiki/Q6871076)  
**Source**: https://4ort.xyz/entity/q6871076


## References

1. SIMBAD
2. VizieR
3. Spectral classification of 533 B8-A2 stars and the mean absolute magnitude of A0V stars
4. A study of the bright A stars. I. A catalogue of spectral classifications
5. The Tycho-2 catalogue of the 2.5 million brightest stars
6. Gaia Data Release 2
7. VizieR Online Data Catalog: 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003)
8. Astrophysical supplements to the ASCC-2.5: Ia. Radial velocities of ∼55000 stars and mean radial velocities of 516 Galactic open clusters and associations
9. Rotational velocities of A-type stars. III. Velocity distributions
10. Rotational velocities of A-type stars in the northern hemisphere. II. Measurement of v sin i
11. Rotational velocities of A-type stars. IV. Evolution of rotational velocities