PSR J0437-4715
ILLUSTRATION FROM PERIOD 5.76 MS · FIELD 5.81×10⁸ G · CHARACTERISTIC AGE 1.59×10⁹ YR · SPIN-DOWN 1.19×10³⁴ ERG/S
OVERVIEW
] NEUTRON STARPSR J0437-4715 is a in the constellation Pictor, 507.2 from Earth. It was discovered in 1993.
The nearest and brightest millisecond pulsar, close enough that its distance is known by parallax to better than a per cent. It keeps time well enough to be one of the anchors of the pulsar timing arrays now watching for gravitational waves with periods of years.
- WHAT IT IS
- Millisecond pulsar
- HOW FAR
- 507.2
The light arriving now left it that long ago.
OBSERVING
] FROM WHERE YOU AREWhat it takes to see PSR J0437-4715 for yourself. Everything in this part of the page is worked out for a real horizon, a real night and the equipment you say you have.
Say where you are, and this line says when PSR J0437-4715 is worth going out for.
APPARENT PLACE
] EQUINOX J2026.7Where a telescope has to be pointed today, which is not quite where the catalogue records the object: the coordinate grid itself has turned since the year 2000 the catalogue is referred to.
- RIGHT ASCENSION
- DECLINATION
- GRID TURNED SINCE
- 8.5
- PROPER MOTION SINCE
- none published
Computed for 2026-09-04 00:00 UT. No proper motion is published for PSR J0437-4715, so nothing here moves the object; what separates this from the catalogued position above is the coordinate grid turning under it — about fifty arcseconds a year of precession since 2000, and the small nodding of the Earth’s axis on top of that. Aberration and refraction are not included, and neither is parallax; each is under an arcminute, which is also about as well as the catalogued position is known. The same figure for any date.
CATALOG DATA
] 9 FIELDSThe raw catalogue values, as the source published them, with the error bars where one was published — sorted by what each set of figures is about rather than by the order they happened to be stored in.
WHAT KIND OF THING IT IS
What the object is in itself, rather than how it happens to look from here.
- Surface magnetic field
- 5.81×10⁸ G
- Spin period
- 0.00575745
- Spin-down rate
- 5.73×10⁻²⁰ /s
- Characteristic age
- 1.59×10⁹ yr
- Spin-down luminosity
- 1.19×10³⁴ 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.
- Radio flux at 1400 MHz
- 150.2 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.
- Dispersion measure
- 2.65 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.
- Binary orbit model
- T2
OTHER NAMES AND NUMBERS
The identifiers other catalogues file this object under, for anyone joining this data to theirs.
- Associated with
- GRS:4FGL_J0437.2-4715[aab+22],OPT:[bbm+95]
ALSO KNOWN AS
] 2 DESIGNATIONS- ATNF J0437-4715
- ATNF PSR J0437-4715
LOOK IT UP ELSEWHERE
] 1 SERVICEEach link carries the identifier printed beside it. Nothing on this page is a measurement of our own, so a number that disagrees with one of these is worth reporting — and a service that has never catalogued this object under this name will say so plainly.
- VizieR5″ around 69.3164 -47.2526
Every published table with a row at this position, searched by coordinates rather than by name.
CITE THIS PAGE
] DR1This page is live and its numbers move when an upstream refreshes, so the citation names the release the rows belong to rather than the day you read them. The release itself is frozen, republished as a bundle, and is what a data-availability statement should point at.
SpaceCatalog. PSR J0437-4715 [catalogue entry]. Data release DR1 (2026-08-21). https://spacecatalog.org/object/psr-j0437m4715
@misc{spacecatalog_psr-j0437m4715,
author = {{SpaceCatalog}},
title = {{PSR J0437-4715}},
howpublished = {SpaceCatalog, data release DR1 (2026-08-21)},
year = {2026},
url = {https://spacecatalog.org/object/psr-j0437m4715},
note = {Catalogue entry, data release DR1 (2026-08-21). Values from ATNF Pulsar Catalogue (Manchester+ 2005).}
}The values above were taken from ATNF Pulsar Catalogue (Manchester+ 2005) — Free to use with attribution; cite Manchester+ 2005 (2005AJ....129.1993M). Citing this page does not replace citing that catalogue.