| Observation data Epoch Equinox |
|
|---|---|
| Constellation | Camelopardalis |
| Right ascension | 03h 32m 59.368s |
| Declination | +54° 34′ 43.57″ |
| Distance | 2,643 ly (809.79 pc) |
| Spectral type | Pulsar |
| Other designations | |
| Database references | |
| SIMBAD | data |
PSR B0329+54 is a pulsar approximately 2,643 light-years away in the constellation of Camelopardalis. The pulsar is thought to complete its rotation every 0.71452 seconds. As of 1979[update], it is thought that two extrasolar planets orbit this pulsar, but have not yet been confirmed and are currently considered doubtful.
In 1979, two extrasolar planets were announced to be orbiting the pulsar (being classified as pulsar planets). However, the planets are considered doubtful, due to lack of evidence. If the planets were confirmed, they would be considered the first true extrasolar planet discovered.
| Companion (in order from star) |
Mass | Semimajor axis (AU) |
Orbital period (days) |
Eccentricity |
|---|---|---|---|---|
| A (unconfirmed) | 0.3±0.002 M⊕ MJ | 2.3 | 1205.358±0.003 | 0 |
| B (unconfirmed) | 2.2±0.002 M⊕ MJ | 7.3 | 61728.94±0.003 | 0.23 |