# V* V454 Ser

> classical Cepheid variable star in the constellation Serpens

**Wikidata**: [Q83180219](https://www.wikidata.org/wiki/Q83180219)  
**Source**: https://4ort.xyz/entity/v-v454-ser


## References

1. SIMBAD
2. ASAS photometry of ROSAT sources. I. Periodic variable stars coincident with bright sources from the ROSAT All Sky Survey
3. VizieR Online Data Catalog: 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003)
4. Photometry of type II Cepheid candidates from the northern part of the All Sky Automated Survey
5. The Tycho-2 catalogue of the 2.5 million brightest stars
6. Gaia Early Data Release 3
7. Gaia Data Release 2
8. Spectra of type II cepheid candidates and related stars