Pulsar
PSR J1831-0941
Young pulsar · in the remnant G22.0+0.0
A neutron star spinning once every 0.301 seconds; the beams from its magnetic poles sweep across Earth on every turn. Period, spin-down, distance and orbit come from the ATNF Pulsar Catalogue; the beam geometry is illustrative.
| Type | Pulsar |
|---|---|
| Constellation | Scutum |
| Period | 300.9 ms |
| Period derivative | 8.6×10⁻¹⁴ s/s |
| Characteristic age | 56 thousand years |
| Magnetic field | 5.1×10¹² G |
| Spin-down luminosity | 1.2×10³⁵ erg/s |
| Dispersion measure | 370.1 pc/cm³ |
| Distance | 4,171 pc (13.6 thousand ly) |
| Location | in the remnant G22.0+0.0 |
| Discovery | 2024 · meerkat_trapum |
| Source | ATNF Pulsar Catalogue |
| Right ascension (J2000) | 18h 31m 25.1s |
| Declination (J2000) | −9° 41′ 53″ |
In the sky
Visible from the whole Southern Hemisphere and north to latitude 80° N. It stands highest at midnight in June, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out 14 thousand years ago. At that time Homo sapiens was spreading out of Africa; there was no farming yet. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 241 million years.