Planet PSR B1257+12 d

Detailed information about planet PSR B1257+12 d and its parameters.

Planet

Name
PSR B1257+12 d
Planet Status
Confirmed
Discovered in
1992
Update
2024-05-29
Mass
Mass*sin(i)
Semi-Major Axis
Orbital Period
Eccentricity
ω
Tperi
Radius
Inclination
Detection Method
Timing
Mass Meas. Method
Radius Meas. Method
Primary transit
Secondary transit
λ
Impact Parameter b
Time Vr=0
Velocity Semiamplitude K
Calculated temperature
Measured temperature
Hottest point longitude
Geometric albedo
Surface gravity log(g/gH)
Alternate Names
Data Source Type Result Value Result Figure Notes Reference
Molecule Data Source Type Result Value Result Figure Notes Reference

- 31 Oct. 2002: Possible comet around the pulsar PSR1257+12 (courtesy Daniel Fischer)
- The innermost `planet' claimed to be an artefact due to solar wind (Schere et al. 1997)
- A possible fourth, Saturn-like, planet at ~ 40 UA (Joshi & Rasio 1996, Wolszczan 1996)
- 8 May 2000: Planet A cannot be due to a heliospheric propagation effect (Wolszczan et al., 2000)

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Star

Name
PSR B1257+12
Distance
Spectral type
PSR
Apparent magnitude V
Mass
Age
1.0 ( ± 0.0 ) Gyr
Effective temperature
Radius
Metallicity [Fe/H]
Detected Disc
Magnetic Field
RA2000
13:00:04.0
Dec2000
+12:40:56.0
Alternate Names
PSR J1300+1240

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