PSR J1719−1438
The location of PSR J1719-1438 (circled in red) | |
| Observation data Epoch MJD 55411.0 Equinox J2000 | |
|---|---|
| Constellation | Serpens |
| Right ascension | 17h 19m 10.0730(1)s |
| Declination | −14° 38′ 00.96(2)″ |
| Characteristics | |
| Spectral type | Millisecond pulsar |
| Astrometry | |
| Distance | ~3,900 ly (~1,200 pc) |
| Orbit | |
| Primary | PSR J1719−1438 |
| Name | PSR J1719−1438 b |
| Period (P) | 2 hours 10 minutes 37.0237 ±0.0002 seconds |
| Semi-major axis (a) | 0.001819(1) light seconds |
| Eccentricity (e) | <0.06 |
| Periastron epoch (T) | MJD 55411.0 |
| Details | |
| Mass | 1.44 M☉ |
| Radius | 19 km |
| Surface gravity (log g) | 13.69 cgs |
| Rotation | 5.7901517700238 ms |
| Age | 11.4 Gyr |
| Other designations | |
| PSR J1719−1438 | |
| Database references | |
| SIMBAD | data |
PSR J1719−1438 is a millisecond pulsar with a spin period of 5.7901 ms and is characteristic age of 11.4 billion years old located about 3,900 light years (1,200 parsecs) from Earth in the direction of Serpens Cauda, one minute from the border with Ophiuchus. Millisecond pulsars are generally thought to begin as normal pulsars and then spin up by accreting matter from a binary companion.