Zeta Sagittae
Triple star system in Sagitta with a close binary pair.
Zeta Sagittae is a triple star system in the northern constellation Sagitta. Its combined brightness of magnitude 5.00 makes it visible without a telescope. The inner pair consists of two A-type main-sequence stars orbiting each other every 8487.9 days in a highly elliptical path. The primary, component A, is a rapidly spinning A3 Vnn star. Its rotation flattens it into an oblate shape, with an equatorial bulge 14 percent larger than the polar radius.
Quick Facts
- Combined apparent visual magnitude
- +5.00
- Inner pair orbital period
- 8487.9 days
- Inner pair semimajor axis
- 0.136 arc seconds
- Inner pair eccentricity
- 0.79
- Primary stellar classification
- A3 Vnn
- Chinese name
- 左旗四 (Zuǒ Qí sì)
Facts from the source article.
More in Bright Stars by Bayer Designation: Binary and Multiple Stars
Spotted an error? Know more?
Reader corrections go straight into our review queue. Suggest an edit · How this site is sourced
Comments
Loading…