According to NASA, the diamond planet PSR J1719-1438 b possesses a minimum mass of about 1.2 times that of Jupiter while orbiting its host pulsar every 2.2 hours. Discovered in 2011 via pulsar timing, researchers according to NASA estimate the object has a density of at least 23 grams per cubic centimeter, far exceeding Earth’s average density of approximately 5.5 grams per cubic centimeter.
PSR J1719-1438 b Discovery and Pulsar Timing Method
Astronomers discovered PSR J1719-1438 b in 2011 using the pulsar timing method, according to mission records. A pulsar acts as a cosmic clock because it is a rapidly spinning neutron star that regularly emits radio waves. Gravitational interaction from an orbiting companion causes the pulsar to wobble slightly, altering the arrival times of its radio signals. By tracking these shifts, astronomers calculated the presence and mass of the companion object, which orbits at a distance of approximately 600.000 kilometer according to space agency data.
Stellar Transformation and Carbon Crystal Structure
Researchers deduce that PSR J1719-1438 b is not a standard planet formed from gas and dust, but rather the remnant of a low-mass white dwarf. According to scientific reporting from Supernews.co.id, the pulsar’s gravity stripped away nearly all the outer layers of the companion star, leaving behind about 0.1 percent of its original mass. This leftover core consists predominantly of carbon and oxygen. Under extreme gravitational pressure from the nearby pulsar, the remaining carbon compressed into a crystalline structure, leading scientists to apply the popular diamond planet moniker.
Comparing Density and Exoplanet 55 Cancri e
Scientific models and data show stark contrasts between extreme carbon-rich bodies. While PSR J1719-1438 b packs a mass exceeding 380 times that of Earth into a dense core, another candidate carbon planet, 55 Cancri e, has a radius twice that of Earth and a mass roughly nine times greater according to published findings. Unlike the rapid 2.2-hour orbit of PSR J1719-1438 b, 55 Cancri e completes an orbit around its host star every 17 hours. Both worlds remain theoretical models based on mass, orbital dynamics, and evolutionary history rather than direct visual observation of gemstone surfaces.
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Frequently Asked Questions
Is PSR J1719-1438 b literally made of solid diamonds you can see?
No. According to NASA and astronomical studies, the term diamond planet is a descriptor for the carbon-rich material and extreme crystal structure under heavy pressure, not a literal gemstone surface that can be photographed.
How do scientists measure the mass of a planet orbiting a pulsar?
Astronomers use pulsar timing, tracking minute changes in the regular radio signals emitted by the spinning neutron star as the companion’s gravity pulls on it.
What was PSR J1719-1438 b before it became a dense remnant?
Researchers suggest it was originally a low-mass white dwarf star whose outer layers were pulled away by the gravitational force of the neighboring pulsar.
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