Assertion: pulsar's period | /r/HasProperty | second
Facets:
value: often
type: DEGREE
value: for neutron stars
type: LOCATION
Source sentences:
text: Pulsations of neutron stars typically have periods of milliseconds, not seconds.
text: Pulsars thousands of years old have lost too much energy to emit appreciably in the visible and X-ray wavelengths, and they are observed only as radio pulsars; their periods are a second or longer.
text: Helioseismology studies these modes with periods in the range of minutes, while for neutron stars the periods are much shorter, often seconds or even milliseconds.
text: Pulsars thousands of years old have lost too much energy to emit appreciably in the visible and X-ray wavelengths, and they are observed only as radio pulsars; their periods are a second or longer.