---
title: "PSR J2355+2246"
url: "https://spacecatalog.org/object/psr-j2355p2246"
release: "DR1"
licence: "No licence stated; the database is ATNF/CSIRO property under the CSIRO Legal Notice and Disclaimer"
citation: "SpaceCatalog. PSR J2355+2246 [catalogue entry]. Data release DR1 (2026-08-21). https://spacecatalog.org/object/psr-j2355p2246"
---

# PSR J2355+2246

PSR J2355+2246 is a pulsar in the constellation [Pegasus](https://spacecatalog.org/constellation/pegasus), 7055 ly from Earth.

## At a glance

- **WHAT IT IS:** Pulsar
- **HOW FAR:** 7055 ly — The light arriving now left it that long ago.
- **WHERE TO LOOK:** [Pegasus](https://spacecatalog.org/constellation/pegasus) — The patch of sky it sits in, as seen from Earth.

## Properties

| Quantity | Value |
| --- | --- |
| CLASS | Pulsar |
| DISTANCE FROM EARTH | 7055 ly — by dispersion measure through the YMW16 electron-density model |
| CONSTELLATION | Pegasus |
| RIGHT ASCENSION (J2000) | 23h 55m 49.8s |
| DECLINATION (J2000) | +22° 46′ 17.0″ |

## 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 | 2.67×10¹² G |
| Spin period | 1.84099 s |
| Spin-down rate | 3.78×10⁻¹⁵ s/s |
| Characteristic age | 7 716 577 yr |
| Spin-down luminosity | 2.39×10³¹ erg/s |

### 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 |
| --- | --- |
| Position known to | 9.01″ |
| Dispersion measure | 23.1 pc/cm³ |

## Also known as

- ATNF: J2355+2246
- ATNF: PSR J2355+2246

## 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. PSR J2355+2246 \[catalogue entry\]. Data release DR1 (2026-08-21). https://spacecatalog.org/object/psr-j2355p2246

```bibtex
@misc{spacecatalog_psr-j2355p2246,
  author       = {{SpaceCatalog}},
  title        = {{PSR J2355+2246}},
  howpublished = {SpaceCatalog, data release DR1 (2026-08-21)},
  year         = {2026},
  url          = {https://spacecatalog.org/object/psr-j2355p2246},
  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-j2355p2246