PSR J0952-0607
ILLUSTRATION FROM PERIOD 1.41 MS · FIELD 8.31×10⁷ G · CHARACTERISTIC AGE 4.69×10⁹ YR · SPIN-DOWN 6.67×10³⁴ ERG/S
OVERVIEW
] NEUTRON STARPSR J0952-0607 is a in the constellation Sextans, 5675 from Earth. It was discovered in 2017.
Among the heaviest neutron stars measured, at roughly two and a third solar masses. It got there by stripping its companion: the star it is devouring is down to a few per cent of the Sun's mass, which is why objects like this are called black widows.
- WHAT IT IS
- Millisecond pulsar
- HOW FAR
- 5675
The light arriving now left it that long ago.
OBSERVING
] FROM WHERE YOU AREWhat it takes to see PSR J0952-0607 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 J0952-0607 is worth going out for.
APPARENT PLACE
] EQUINOX J2026.8Where 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
- 21.5
- PROPER MOTION SINCE
- none published
Computed for 2026-10-23 00:00 UT. No proper motion is published for PSR J0952-0607, 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. The catalogued place is itself known to 2.1 mas, which is what this arithmetic can be trusted to however many digits it is printed with. Aberration, parallax and refraction are left out. Aberration swings every position by up to twenty arcseconds over a year; parallax stays under an arcsecond for all but the nearest stars; refraction is nothing overhead and about half a degree at the horizon, where it answers to the air, not the sky. 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
- 8.31×10⁷ G
- Spin period
- 0.0014138
- Spin-down rate
- 4.77×10⁻²¹ /s
- Characteristic age
- 4.69×10⁹ yr
- Spin-down luminosity
- 6.67×10³⁴ 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.
- Position known to
- 2.1 mas
- Dispersion measure
- 22.41 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
- ELL1
OTHER NAMES AND NUMBERS
The identifiers other catalogues file this object under, for anyone joining this data to theirs.
- Associated with
- GRS:4FGL_J0952.1-0607[aab+22],OPT:[bph+17]
ALSO KNOWN AS
] 2 DESIGNATIONS- ATNF J0952-0607
- ATNF PSR J0952-0607
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 148.0347 -6.1232
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 J0952-0607 [catalogue entry]. Data release DR1 (2026-08-21). https://spacecatalog.org/object/psr-j0952m0607
@misc{spacecatalog_psr-j0952m0607,
author = {{SpaceCatalog}},
title = {{PSR J0952-0607}},
howpublished = {SpaceCatalog, data release DR1 (2026-08-21)},
year = {2026},
url = {https://spacecatalog.org/object/psr-j0952m0607},
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) — No licence stated; the database is ATNF/CSIRO property under the CSIRO Legal Notice and Disclaimer. Citing this page does not replace citing that catalogue.
That catalogue asks for this acknowledgement: 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
RECENT ACTIVITY
] 3 ITEMS- Structure of Anisotropic Magnetized Neutron Stars in f(R,T) Gravity with Realistic Equation of State2026-07-06 · arXiv · PAPER · M. Savari, G. H. Bordbar, J. Sedaghat, A. Sheykhi
- New solution to the hyperon puzzle of neutron stars: Quantum many-body effects2026-02-08 · arXiv · PAPER · Hao-Fu Zhu, Guo-Zhu Liu, Xufen Wu, Ye-Fei Yuan
- Strange quark star I: the maximum gravitational mass and deformation of magnetized spinning model2026-01-14 · arXiv · PAPER · Fatemeh Kayanikhoo, Mateusz Kapusta, Miljenko Čemeljić, Leszek Zdunik
arXiv · UPDATED DAILY