Pulsar
PSR J1849+1001
Radio pulsar · binary system
A neutron star spinning once every 0.035 seconds; the beams from its magnetic poles sweep across Earth on every turn. It shares a 26.166 days orbit with a CO white dwarf. Period, spin-down, distance and orbit come from the ATNF Pulsar Catalogue; the beam geometry is illustrative.
| Type | Pulsar |
|---|---|
| Constellation | Aquila |
| Period | 35.189 ms (28 Hz) |
| Period derivative | 5.0×10⁻²⁰ s/s |
| Characteristic age | 11.3 billion years |
| Magnetic field | 1.3×10⁹ G |
| Spin-down luminosity | 4.5×10³¹ erg/s |
| Dispersion measure | 79.6 pc/cm³ |
| Distance | 3,190 pc (10.4 thousand ly) |
| Companion | CO white dwarf (estimated), ~1.09 M☉ |
| Orbital period | 26.166 days |
| Eccentricity | 0.0081 |
| Discovery | 2024 · misc |
| Source | ATNF Pulsar Catalogue |
| Right ascension (J2000) | 18h 49m 00.7s |
| Declination (J2000) | +10° 01′ 01″ |
In the sky
Visible from the whole Northern Hemisphere and south to latitude 80° S. North of latitude 80° N it never sets. It stands highest at midnight in July, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out 10 thousand years ago. At that time the first farming villages were being founded; there was no writing yet. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 185 million years.