Pulsar
PSR B1257+12
A pulsar: a dead star spinning 161 times a second. The very first exoplanets were found around it, in 1992.
- Distance
- 1,957 light years
- Surface
- 4,727 °C
- Size
- 1 × the Sun
- Known planets
- 3
Outer layers
- H 73%
- He 25%
- O, C, Fe and heavier 2%
Glowing hydrogen plasma
Modelled from typical stellar abundances