Pulsar
PSR B1750-24 (J1753-2501)
Radio pulsar
A neutron star spinning once every 0.528 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 | Sagittarius |
| Period | 528.3 ms |
| Period derivative | 1.4×10⁻¹⁴ s/s |
| Characteristic age | 593 thousand years |
| Magnetic field | 2.8×10¹² G |
| Spin-down luminosity | 3.8×10³³ erg/s |
| Dispersion measure | 672.0 pc/cm³ |
| Distance | 5,287 pc (17.2 thousand ly) |
| Discovery | 1986 · jb2, htru_pks, pksmb |
| Source | ATNF Pulsar Catalogue |
| Right ascension (J2000) | 17h 53m 30.6s |
| Declination (J2000) | −25° 00′ 25″ |
In the sky
Visible from the whole Southern Hemisphere and north to latitude 65° N. South of latitude 65° 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 17 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 306 million years.