# 9 Boötis

> star in the constellation Boötes

**Wikidata**: [Q1749010](https://www.wikidata.org/wiki/Q1749010)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/9_Boötis)  
**Source**: https://4ort.xyz/entity/9-bo-tis


## References

1. New Catalogue of Suspected Variable Stars
2. SIMBAD
3. Radial velocities and DDO, BV photometry of Henry Draper G5-M stars near the North Galactic Pole
4. Freebase Data Dumps. 2013
5. Photoelectric photometry of stars near the North Galactic Pole. II
6. VizieR Online Data Catalog: 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003)
7. Gaia Early Data Release 3
8. Gaia Data Release 2
9. Catalogue of rotational velocities of the stars
10. Towards a fundamental calibration of stellar parameters of A, F, G, K dwarfs and giants
11. High-resolution spectroscopic survey of 671 GK giants. I - Stellar atmosphere parameters and abundances