Star
PSR B1257+12
Host star
Overview
PSR B1257+12 is a host star with 3 known exoplanets. It is located approximately 1957 light-years from Earth.
Key Measurements
Planets
3
012+
Distance
600.0
pc
Nearby10,000 pc
Spectral Type
Unknown
Temperature
Unknown
Mass (Solar)
1.40 M☉
Radius (Solar)
Unknown
Luminosity
Unknown
Metallicity [Fe/H]
Unknown
Age
3.0 Gyr
Known Planets
3
Stars in System
1
Planets (NASA)
3
Distance
600.0 pc (~1957 ly)
V Magnitude
Unknown
K Magnitude
Unknown
Coordinates (RA, Dec)
195.0149°, 12.6824°
Planets in this System(3 known)
PSR B1257+12 b
PSR B1257+12
Mass
0.02Earth masses
Orbital Period
25.3days
Distance
600.0parsecs
Discovered 1994
Exoplanet
PSR B1257+12 c
PSR B1257+12
Mass
4.30Earth masses
Orbital Period
66.5days
Distance
600.0parsecs
Discovered 1992
Exoplanet
PSR B1257+12 d
PSR B1257+12
Mass
3.90Earth masses
Orbital Period
98.2days
Distance
600.0parsecs
Discovered 1992
Exoplanet
Data Sources
Source ID: PSR B1257+12