---
title: "HIP 81208 C b"
url: "https://spacecatalog.org/object/hip-81208-c-b"
release: "DR1"
licence: "No licence stated; acknowledgement requested"
citation: "SpaceCatalog. HIP 81208 C b [catalogue entry]. Data release DR1 (2026-08-21). https://spacecatalog.org/object/hip-81208-c-b"
---

# HIP 81208 C b

HIP 81208 C b is a gas giant in the constellation [Scorpius](https://spacecatalog.org/constellation/scorpius), 481.2 ly from Earth. It orbits HIP 81208 C at a mean distance of 23.04 AU. It has a mass of 14.80 M♃ and a radius of 1.10 R♃ · 78 451 km. It was discovered in 2023.

## At a glance

- **WHAT IT IS:** Gas giant
- **HOW FAR:** 481.2 ly — The light arriving now left it that long ago.
- **HOW BIG:** 1.10 R♃ · 78 451 km — Its radius: half the width across.
- **WHERE TO LOOK:** [Scorpius](https://spacecatalog.org/constellation/scorpius) — The patch of sky it sits in, as seen from Earth.
- **ONE ORBIT TAKES:** 285 years — One trip round HIP 81208 C.

## Properties

| Quantity | Value |
| --- | --- |
| CLASS | Gas giant |
| MASS | 14.80 M♃ ±0.4 |
| RADIUS | 1.10 R♃ · 78 451 km |
| DISTANCE FROM EARTH | 481.2 ly +4.8 / −4.7 — by NASA Exoplanet Archive sy\_dist (TICv8, 2019AJ....158..138S) |
| ORBITS | HIP 81208 C |
| SEMI-MAJOR AXIS | 23.04 AU +14 / −6.5 |
| CONSTELLATION | Scorpius |
| RIGHT ASCENSION (J2000) | 16h 35m 13.8s |
| DECLINATION (J2000) | −35° 43′ 29.1″ |
| DISCOVERED | 2023 |

## Catalogue data

### WHAT KIND OF THING IT IS

What the object is in itself, rather than how it happens to look from here.

| Field | Value |
| --- | --- |
| Equilibrium temperature | 2050 K |
| Host star spectral type | M |
| Host star mass | 0.135 +0.01 / −0.013 M☉ |

### THE ORBIT

The shape of the path, where the object sits on it, and the instant those figures were true of. An orbit is a fit to observations and drifts away from the real one either side of its epoch.

| Field | Value |
| --- | --- |
| Host star | HIP 81208 C |
| Orbital period | 285 years +1.1×10⁵ / −40934 |
| Stars in system | 3 |
| Planets in system | 1 |

### WHEN IT WAS FOUND

Who first saw it, from where, and by what method.

| Field | Value |
| --- | --- |
| Discovery method | Imaging |
| Discovered at | Paranal Observatory |

## Also known as

- Exoplanet: HIP 81208 C b
- Host star: HIP 81208 C

## Source

[NASA Exoplanet Archive (Planetary Systems Composite Parameters)](https://exoplanetarchive.ipac.caltech.edu/cgi-bin/TblView/nph-tblView?app=ExoTbls&config=PSCompPars) — No licence stated; acknowledgement requested

The producer asks: 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.

How this was made: https://spacecatalog.org/methods#source-exoplanet-archive

## Cite this page

SpaceCatalog. HIP 81208 C b \[catalogue entry\]. Data release DR1 (2026-08-21). https://spacecatalog.org/object/hip-81208-c-b

```bibtex
@misc{spacecatalog_hip-81208-c-b,
  author       = {{SpaceCatalog}},
  title        = {{HIP 81208 C b}},
  howpublished = {SpaceCatalog, data release DR1 (2026-08-21)},
  year         = {2026},
  url          = {https://spacecatalog.org/object/hip-81208-c-b},
  note         = {Catalogue entry, data release DR1 (2026-08-21). Values from NASA Exoplanet Archive (Planetary Systems Composite Parameters).}
}
```

NASA Exoplanet Archive (Planetary Systems Composite Parameters) — No licence stated; acknowledgement requested

Acknowledgement the producer asks for: 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 page itself, with its pictures, the sky map and the observing tools: https://spacecatalog.org/object/hip-81208-c-b