---
title: "PSR J1719-1438 b"
url: "https://spacecatalog.org/object/psr-j1719-1438-b"
release: "DR1"
licence: "No licence stated; acknowledgement requested"
citation: "SpaceCatalog. PSR J1719-1438 b [catalogue entry]. Data release DR1 (2026-08-21). https://spacecatalog.org/object/psr-j1719-1438-b"
---

# PSR J1719-1438 b

PSR J1719-1438 b is a gas giant in the constellation [Serpens](https://spacecatalog.org/constellation/serpens), 3914 ly from Earth. It orbits PSR J1719-1438 at a mean distance of 0.0044 AU. Its mass is 1.20 M♃. It was discovered in 2011.

## At a glance

- **WHAT IT IS:** Gas giant
- **HOW FAR:** 3914 ly — The light arriving now left it that long ago.
- **WHERE TO LOOK:** [Serpens](https://spacecatalog.org/constellation/serpens) — The patch of sky it sits in, as seen from Earth.
- **ONE ORBIT TAKES:** 2.2 h — One trip round PSR J1719-1438.

## Properties

| Quantity | Value |
| --- | --- |
| CLASS | Gas giant |
| MASS | 1.20 M♃ |
| DISTANCE FROM EARTH | 3914 ly ±978 — by NASA Exoplanet Archive sy\_dist (Bailes+ 2011, 2011Sci...333.1717B) |
| ORBITS | PSR J1719-1438 |
| SEMI-MAJOR AXIS | 0.0044 AU |
| CONSTELLATION | Serpens |
| RIGHT ASCENSION (J2000) | 17h 19m 10.1s |
| DECLINATION (J2000) | −14° 38′ 01.0″ |
| DISCOVERED | 2011 |

## 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 |
| --- | --- |
| Host star temperature | 4500 K |
| Host star mass | 1.4 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 | PSR J1719-1438 |
| Orbital period | 0.090706293 days ±2×10⁻⁹ |
| Eccentricity, upper limit | 0.06 |
| Stars in system | 1 |
| Planets in system | 1 |

### WHEN IT WAS FOUND

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

| Field | Value |
| --- | --- |
| Discovery method | Pulsar Timing |
| Discovered at | Parkes Observatory |

## Also known as

- Exoplanet: PSR J1719-1438 b
- Host star: PSR J1719-1438

## 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. PSR J1719-1438 b \[catalogue entry\]. Data release DR1 (2026-08-21). https://spacecatalog.org/object/psr-j1719-1438-b

```bibtex
@misc{spacecatalog_psr-j1719-1438-b,
  author       = {{SpaceCatalog}},
  title        = {{PSR J1719-1438 b}},
  howpublished = {SpaceCatalog, data release DR1 (2026-08-21)},
  year         = {2026},
  url          = {https://spacecatalog.org/object/psr-j1719-1438-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/psr-j1719-1438-b