# NGC 5557

> galaxy

**Wikidata**: [Q1121041](https://www.wikidata.org/wiki/Q1121041)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/NGC_5557)  
**Source**: https://4ort.xyz/entity/ngc-5557


## References

1. VizieR
2. The EFIGI catalogue of 4458 nearby galaxies with detailed morphology
3. SIMBAD
4. Comparison LEDA/SIMBAD octobre 2002. Catalogue to be published in 2003
5. The Updated Zwicky Catalog (UZC)
6. The Two Micron All Sky Survey (2MASS)
7. The SDSS Photometric Catalog, Release 8
8. Hunting for supermassive black holes in nearby galaxies with the Hobby-Eberly telescope
9. The ATLAS3D project - I. A volume-limited sample of 260 nearby early-type galaxies: science goals and selection criteria