PSR J2124+1407

NEUTRON STARPulsar

ILLUSTRATION FROM PERIOD 694 MS · FIELD 7.39×10¹¹ G · CHARACTERISTIC AGE 1.43×10⁷ YR · SPIN-DOWN 9.07×10³¹ ERG/S

[

OVERVIEW

] NEUTRON STAR

PSR J2124+1407 is a in the constellation Pegasus, 9155 from Earth. Other catalogues list it as B2122+13 and PSR B2122+13.

WHAT IT IS
Pulsar
HOW FAR
9155

The light arriving now left it that long ago.

WHERE TO LOOK
Pegasus

The patch of sky it sits in, as seen from Earth.

[

OBSERVING

] FROM WHERE YOU ARE

What it takes to see PSR J2124+1407 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.

TONIGHT

Say where you are, and this line says when PSR J2124+1407 is worth going out for.

[

APPARENT PLACE

] EQUINOX J2026.7

Where 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
19.9
PROPER MOTION SINCE
none published

Computed for 2026-09-08 00:00 UT. No proper motion is published for PSR J2124+1407, 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

] 6 FIELDS

The 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
7.39×10¹¹ G
Spin period
0.694054
Spin-down rate
7.68×10⁻¹⁶ /s
Characteristic age
1.43×10⁷ yr
Spin-down luminosity
9.07×10³¹ 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.

Dispersion measure
30.25 pc/cm³
[

ALSO KNOWN AS

] 4 DESIGNATIONS
  • ATNF B2122+13
  • ATNF J2124+1407
  • ATNF PSR B2122+13
  • ATNF PSR J2124+1407
[

LOOK IT UP ELSEWHERE

] 1 SERVICE

Each 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.

[

CITE THIS PAGE

] DR1

This 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.

PLAIN TEXT
SpaceCatalog. PSR J2124+1407 [catalogue entry]. Data release DR1 (2026-08-21). https://spacecatalog.org/object/psr-j2124p1407
BIBTEX
@misc{spacecatalog_psr-j2124p1407,
  author       = {{SpaceCatalog}},
  title        = {{PSR J2124+1407}},
  howpublished = {SpaceCatalog, data release DR1 (2026-08-21)},
  year         = {2026},
  url          = {https://spacecatalog.org/object/psr-j2124p1407},
  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.

[

RELATED OBJECTS

] 8 LINKED