---
title: "The HD 216530 system"
url: "https://spacecatalog.org/system/hd-216530"
release: "DR1"
licence: "No licence stated; acknowledgement requested"
citation: "This research has made use of the NASA Exoplanet Archive, which is operated by the California Institute of Technology, under contract with the National Aeronautics and Space Administration under the Exoplanet Exploration Program. Cite Christiansen et al. (2025), Planetary Science Journal (doi:10.3847/PSJ/ade3c2), and the literature reference given with each value."
---

# The HD 216530 system

HD 216530 is a K3V orange dwarf in Grus, 140.1 ly away, with 2 known planets. Their orbits run from 0.0690 to 0.105 AU. All of them were detected by transit.

## The planets, innermost first

| Planet | Orbit (AU) | Period | Radius | Mass | Equilibrium T |
| --- | --- | --- | --- | --- | --- |
| [HIP 113103 b](https://spacecatalog.org/object/hip-113103-b) | 0.0690 | 7.61 d | 1.83 R⊕ | 4 M⊕ | 721 K |
| [HIP 113103 c](https://spacecatalog.org/object/hip-113103-c) | 0.105 | 14.25 d | 2.40 R⊕ | 6.35 M⊕ | 585 K |

Every figure is the planet's composite parameter from the [NASA Exoplanet Archive (Planetary Systems Composite Parameters)](https://exoplanetarchive.ipac.caltech.edu/cgi-bin/TblView/nph-tblView?app=ExoTbls&config=PSCompPars), one consistent set per world. Semi-major axes are orbits about the star, not distances from Earth.

This research has made use of the NASA Exoplanet Archive, which is operated by the California Institute of Technology, under contract with the National Aeronautics and Space Administration under the Exoplanet Exploration Program. Cite Christiansen et al. (2025), Planetary Science Journal (doi:10.3847/PSJ/ade3c2), and the literature reference given with each value.

## The host star

| Quantity | Value |
| --- | --- |
| CLASS | K3V orange dwarf |
| SPECTRAL TYPE | K3V |
| LUMINOSITY | 0.168 L☉ |
| DISTANCE FROM EARTH | 140.1 ly |
| APPARENT MAGNITUDE | 9.95 |
| CONSTELLATION | Grus |

The star itself: https://spacecatalog.org/object/hd-216530

The page itself, with the orbits drawn: https://spacecatalog.org/system/hd-216530