Pulsar
PSR B1829-10 (J1832-1021)
Radio pulsar
A neutron star spinning once every 0.330 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 | 330.4 ms |
| Period derivative | 4.2×10⁻¹⁵ s/s |
| Characteristic age | 1.3 million years |
| Magnetic field | 1.2×10¹² G |
| Spin-down luminosity | 4.6×10³³ erg/s |
| Dispersion measure | 474.1 pc/cm³ |
| Distance | 4,690 pc (15.3 thousand ly) |
| Discovery | 1986 · jb2, htru_pks, pks70, pksmb |
| Source | ATNF Pulsar Catalogue |
| Right ascension (J2000) | 18h 32m 40.9s |
| Declination (J2000) | −10° 21′ 33″ |
In the sky
Visible from the whole Southern Hemisphere and north to latitude 80° N. South of latitude 80° S it never sets. 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 15 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 271 million years.