---
title: "PSR J1635-4735"
url: "https://spacecatalog.org/object/psr-j1635m4735"
release: "DR1"
licence: "No licence stated; the database is ATNF/CSIRO property under the CSIRO Legal Notice and Disclaimer"
citation: "SpaceCatalog. PSR J1635-4735 [catalogue entry]. Data release DR1 (2026-08-21). https://spacecatalog.org/object/psr-j1635m4735"
---

# PSR J1635-4735

PSR J1635-4735 is a magnetar in the constellation [Ara](https://spacecatalog.org/constellation/ara).

## At a glance

- **WHAT IT IS:** Magnetar
- **WHERE TO LOOK:** [Ara](https://spacecatalog.org/constellation/ara) — The patch of sky it sits in, as seen from Earth.

## Properties

| Quantity | Value |
| --- | --- |
| CLASS | Magnetar |
| CONSTELLATION | Ara |
| RIGHT ASCENSION (J2000) | 16h 35m 51.8s |
| DECLINATION (J2000) | −47° 35′ 23.3″ |

## 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 |
| --- | --- |
| Spin period | 2.594578 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 | 0.28″ |

### OTHER NAMES AND NUMBERS

The identifiers other catalogues file this object under, for anyone joining this data to theirs.

| Field | Value |
| --- | --- |
| Associated with | XRS:SGR\_1627-41,SNR:G337.0-0.1(?)\[wkv+99a\] |

## Also known as

- ATNF: J1635-4735
- ATNF: PSR J1635-4735

## 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 J1635-4735 \[catalogue entry\]. Data release DR1 (2026-08-21). https://spacecatalog.org/object/psr-j1635m4735

```bibtex
@misc{spacecatalog_psr-j1635m4735,
  author       = {{SpaceCatalog}},
  title        = {{PSR J1635-4735}},
  howpublished = {SpaceCatalog, data release DR1 (2026-08-21)},
  year         = {2026},
  url          = {https://spacecatalog.org/object/psr-j1635m4735},
  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-j1635m4735