Table · dataset · 2026
V432 Dra UBVRI(RI)c light curves
Listed in IVOA Registry (Virtual Observatory)
A little-studied eclipsing star with an elliptical orbit, V432 Dra (V=12.23mag, P=11.63 days, e=0.37, F8 V + F8 V) turned out to be a relatively young system with accelerated apsidal rotation.
Description
The following absolute parameters of the component stars were obtained for the first time: T1=6240+/-40K, M1=1.13+/-0.05M_{sun}_, R1=1.10+/-0.02R_{sun}_, T2 = 6215+/-40K, M2=1.12+/-0.05M_{sun}_, R2=1.09+/-0.02R_{sun}_. The relativistic contribution to the apsidal rotation is six times greater than the classical effect, but the observed apsidal period Paps = 13060+/-190 yrs is more than three times shorter than the theoretical value.
The photometric parallax of pi=0.00197" (d=507pc) is based on the Gaia value. In evolutionary diagrams, the system is near the Zero Age Main Sequence at an age of 700 mln yrs and shows a metal deficiency of [Fe/H]=-0.17.
Links
Where it is published
- Reference page cdsarc.cds.unistra.fr/viz-bin/cat/J/other/ARep/70.461 ↗
landing page · from IVOA Registry
Documentation and papers
- ADS 2026ARep....70.461V ui.adsabs.harvard.edu/abs/2026ARep....70.461V ↗
publication · from IVOA Registry
Catalogue records · 2
- VOResource record dc.g-vo.org/oai.xml?verb=GetRecord&metadataPrefix=ivo_vor&identifier=ivo%3… ↗
metadata API · from IVOA Registry
- Registry record (GAVO) dc.g-vo.org/I/cds.vizier/j/other/arep/70.461 ↗
catalogue entry · from IVOA Registry
Topics
- From keywords
- Astronomy & Astrophysics
Provenance · 1 source records, 9 field assertions
| Source | Key | Last seen | Raw |
|---|---|---|---|
| IVOA Registry (Virtual Observatory) | ivo://cds.vizier/j/other/arep/70.461 | 15 d ago | JSON v1 |
| Field | Assertion | Extractor | Evidence |
|---|---|---|---|
| access_level | source · IVOA Registry | connector:ivoa_registry@1.0.0 | |
| concepts[field].local:field:astronomy | mapping · IVOA Registry | connector:ivoa_registry@1.0.0 | |
| concepts[modality].ivoa_waveband:infrared | source · IVOA Registry | connector:ivoa_registry@1.0.0 | |
| concepts[modality].ivoa_waveband:optical | source · IVOA Registry | connector:ivoa_registry@1.0.0 | |
| description | source · IVOA Registry | connector:ivoa_registry@1.0.0 | rr.resource.res_description |
| license_text | source · IVOA Registry | connector:ivoa_registry@1.0.0 | |
| publication_date | source · IVOA Registry | connector:ivoa_registry@1.0.0 | |
| title | source · IVOA Registry | connector:ivoa_registry@1.0.0 | rr.resource.res_title |
| updated_date | source · IVOA Registry | connector:ivoa_registry@1.0.0 |