# Sigma Draconis

> star in the constellation Draco

**Wikidata**: [Q311489](https://www.wikidata.org/wiki/Q311489)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Sigma_Draconis)  
**Source**: https://4ort.xyz/entity/sigma-draconis


## References

1. SIMBAD
2. REM near-IR and optical photometric monitoring of pre-main sequence stars in Orion. Rotation periods and starspot parameters
3. Spectral Classification
4. Relationship between colors and spectra of late main-sequence stars
5. Photoeletric measurements of the 5250 A FeI triplet and the D lines in G and K stars
6. Les vitesses radiales obtenues a l'aide d'un grand prisme objectif de 40cm de diametre et etude cinematique d'un champ galactique
7. Photoelectric measurements of the lambda 4200 A CN band and the G band in G8-K5 spectra
8. Contribution aux recherches de photometrie photoelectrique dans la Galaxie
9. A quantitative spectral classification of F0-K5 stars with well determined distances
10. Some theoretical aspects of H and K emission in late-type stars
11. Intensities of isotopic C bands in the spectra of 12 N-type stars
12. Katalog der Sterne naher als 20 parsek fur 1950.0
13. The color-luminosity diagram for stars in the vicinity of the Sun
14. Determination of spectroscopic absolute magnitudes for late-type stars
15. Determination of spectroscopic absolute magnitude for late-type stars
16. H and K Emission in Late-Type Stars: Dependence of Line Width on Luminosity and Related Topics
17. Magnitudes, colors and photometric parallaxes of proper motion stars
18. A catalogue of high-velocity stars
19. Axial Rotation and Line Broadening in Stars of Spectral Types F0-K5
20. Preliminary list of photoelectric classification indices for 234 bright Northern G and K stars
21. The color-luminosity array for stars near the Sun
22. A study of the galactic cluster NGC 2287
23. Some characteristics of color systems
24. Fundamental stellar photometry for standards of spectral type on the revised system of the Yerkes spectral atlas
25. The Spectra of the Bright Stars of Types F5-K5
26. The intersection of the dwarf and subdwarf sequences in the color-luminosity array
27. Luminosity criteria from objective-prism spectra for stars from F0 to K5
28. An atlas of stellar spectra with an outline of spectral classification
29. The Perkins catalog of revised MK types for the cooler stars
30. Freebase Data Dumps. 2013
31. Magnetic Field and Rotation in Lower Main-Sequence Stars: An Empirical Time-Dependent Magnetic Bode's Relation?
32. UBV photometry of stars whose positions are accurately known
33. UBV photometry of stars whose positions are accurately known. VII
34. Catalogue of Stellar Photometry in Johnson's 11-color system
35. VizieR Online Data Catalog: 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003)
36. Directly determined linear radii and effective temperatures of exoplanet host stars
37. Gaia Early Data Release 3
38. Vertical distribution of Galactic disk stars. IV. AMR and AVR from clump giants
39. Gaia Data Release 2. The catalogue of radial velocity standard stars
40. Abundances in the Local Region II: F, G, and K Dwarfs and Subgiants
41. Validation of the new Hipparcos reduction
42. Lithium abundance patterns of late-F stars: an in-depth analysis of the lithium desert
43. Fundamental Parameters and Elemental Abundances of 160 F–G–K Stars Based on OAO Spectrum Database
44. Lithium abundances in nearby FGK dwarf and subgiant stars: internal destruction, galactic chemical evolution, and exoplanets
45. Oxygen abundances in nearby FGK stars and the galactic chemical evolution of the local disk and halo
46. Spectroscopic study on the atmospheric parameters of nearby F-K dwarfs and subgiants