PSR B 1257+12 Comparison Table

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PSR B 1257+12 comparison table

Subject is an instance of is a kind of has definition

pulsar radio star An object discovered at Cambridge University in 1967 which has the mass of a star and a radius no larger than that of Earth and which emits radio pulses with a very high degree of regularity (periods range from 0.03 s for the youngest to more than 3 s for the oldest). All pulsars are characterized by the general properties of dispersion, periodicity, and short duty cycle. Pulsars are believed to be rotating, magnetic (surface magnetic fields of 10¹⁰ to 10¹⁴ gauss are estimated) neutron stars which are the end products of supernovae. Type S pulsars have a simple pulse shape: Type C, complex: Type D have drifting subpulses.

PSR B 1257+12 pulsar A pulsar in the constellation Virgo and the site of the first solar system to be discovered outside our own. The planets were detected in 1991.

Subject	is an instance of	is a kind of	has definition
pulsar		radio star	An object discovered at Cambridge University in 1967 which has the mass of a star and a radius no larger than that of Earth and which emits radio pulses with a very high degree of regularity (periods range from 0.03 s for the youngest to more than 3 s for the oldest). All pulsars are characterized by the general properties of dispersion, periodicity, and short duty cycle. Pulsars are believed to be rotating, magnetic (surface magnetic fields of 10¹⁰ to 10¹⁴ gauss are estimated) neutron stars which are the end products of supernovae. Type S pulsars have a simple pulse shape: Type C, complex: Type D have drifting subpulses.
PSR B 1257+12	pulsar		A pulsar in the constellation Virgo and the site of the first solar system to be discovered outside our own. The planets were detected in 1991.

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