# Sidus Ludoviciana

> star in the constellation Ursa Major

**Wikidata**: [Q463324](https://www.wikidata.org/wiki/Q463324)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Sidus_Ludovicianum)  
**Source**: https://4ort.xyz/entity/sidus-ludoviciana


## References

1. SIMBAD
2. VizieR Online Data Catalog: Henry Draper Catalogue and Extension, published in Ann. Harvard Obs. 91-100 (1918-1925)
3. Henry Draper Catalogue
4. Durchmusterung
5. The Tycho-2 catalogue of the 2.5 million brightest stars
6. Freebase Data Dumps. 2013
7. Gaia Data Release 2
8. VizieR Online Data Catalog: 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003)
9. Gaia Data Release 2. Summary of the contents and survey properties
10. Radial velocities. Measurements of 2800 B2-F5 stars for HIPPARCOS