Pulsar
PSR B1629-50 (J1633-5015)
Radio pulsar
A neutron star spinning once every 0.352 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 | Norma |
| Period | 352.1 ms |
| Period derivative | 3.8×10⁻¹⁵ s/s |
| Characteristic age | 1.5 million years |
| Magnetic field | 1.2×10¹² G |
| Spin-down luminosity | 3.4×10³³ erg/s |
| Dispersion measure | 399.0 pc/cm³ |
| Distance | 6,011 pc (19.6 thousand ly) |
| Discovery | 1992 · pks1, htru_pks, misc, pksmb |
| Source | ATNF Pulsar Catalogue |
| Right ascension (J2000) | 16h 33m 00.1s |
| Declination (J2000) | −50° 15′ 08″ |
In the sky
Visible from the whole Southern Hemisphere and north to latitude 40° N. South of latitude 40° S it never sets. It stands highest at midnight in May, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out 20 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 348 million years.