---
title: "J1719-1438"
url: "https://spacecatalog.org/object/psr-j1719m1438"
release: "DR1"
licence: "No licence stated; the database is ATNF/CSIRO property under the CSIRO Legal Notice and Disclaimer"
citation: "SpaceCatalog. J1719-1438 [catalogue entry]. Data release DR1 (2026-08-21). https://spacecatalog.org/object/psr-j1719m1438"
---

# J1719-1438

J1719-1438 is a millisecond pulsar in the constellation [Serpens](https://spacecatalog.org/constellation/serpens), 1096 ly from Earth. Other catalogues list it as PSR J1719-1438.

## At a glance

- **WHAT IT IS:** Millisecond pulsar
- **HOW FAR:** 1096 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.

## Properties

| Quantity | Value |
| --- | --- |
| CLASS | Millisecond pulsar |
| DISTANCE FROM EARTH | 1096 ly — by dispersion measure through the YMW16 electron-density model |
| CONSTELLATION | Serpens |
| RIGHT ASCENSION (J2000) | 17h 19m 10.1s |
| DECLINATION (J2000) | −14° 38′ 00.9″ |

## 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 |
| --- | --- |
| Surface magnetic field | 2.18×10⁸ G |
| Spin period | 0.00579015 s |
| Spin-down rate | 8.04×10⁻²¹ s/s |
| Characteristic age | 1.14×10¹⁰ yr |
| Spin-down luminosity | 1.64×10³³ erg/s |

### HOW BRIGHT IT IS

What the light adds up to, measured through one filter at a time. A magnitude is a brightness on a backwards scale — the smaller the number, the brighter the object.

| Field | Value |
| --- | --- |
| Radio flux at 1400 MHz | 0.43 mJy |

### WHERE IT IS AND HOW IT MOVES

Position, motion across the sky and the size it covers on it. These are measurements of the object as seen from here, so every one of them depends on where here is.

| Field | Value |
| --- | --- |
| Proper motion (RA) | 1.9 ±0.4 mas/yr |
| Proper motion (Dec) | −11 ±2 mas/yr |
| Position epoch | J2020.823 |
| Position known to | 4.1 mas |
| Dispersion measure | 36.78 pc/cm³ |

### 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 |
| --- | --- |
| Binary orbit model | ELL1 |

## Also known as

- ATNF: J1719-1438
- ATNF: PSR J1719-1438
- Common name: PSR J1719-1438

## Source

[ATNF Pulsar Catalogue (Manchester+ 2005)](https://www.atnf.csiro.au/research/pulsar/psrcat) — No licence stated; the database is ATNF/CSIRO property under the CSIRO Legal Notice and Disclaimer

The producer asks: Manchester, R. N., Hobbs, G. B., Teoh, A. & Hobbs, M. 2005, AJ 129, 1993 (2005AJ....129.1993M); https://www.atnf.csiro.au/research/pulsar/psrcat

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

## Cite this page

SpaceCatalog. J1719-1438 \[catalogue entry\]. Data release DR1 (2026-08-21). https://spacecatalog.org/object/psr-j1719m1438

```bibtex
@misc{spacecatalog_psr-j1719m1438,
  author       = {{SpaceCatalog}},
  title        = {{J1719-1438}},
  howpublished = {SpaceCatalog, data release DR1 (2026-08-21)},
  year         = {2026},
  url          = {https://spacecatalog.org/object/psr-j1719m1438},
  note         = {Catalogue entry, data release DR1 (2026-08-21). Values from ATNF Pulsar Catalogue (Manchester+ 2005).}
}
```

ATNF Pulsar Catalogue (Manchester+ 2005) — No licence stated; the database is ATNF/CSIRO property under the CSIRO Legal Notice and Disclaimer

Acknowledgement the producer asks for: Manchester, R. N., Hobbs, G. B., Teoh, A. & Hobbs, M. 2005, AJ 129, 1993 (2005AJ....129.1993M); https://www.atnf.csiro.au/research/pulsar/psrcat

The page itself, with its pictures, the sky map and the observing tools: https://spacecatalog.org/object/psr-j1719m1438