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Sirius B compared to Earth
- Title Sirius B compared to Earth
- Released 08/12/2005 12:24 pm
- Copyright ESA/NASA
Based on the Hubble measurements made with the Space Telescope Imaging Spectrograph, an international team found that Sirius B has a mass that is 98 percent that of our own Sun.
Despite this large mass Sirius B is only 12 000 kilometres in diameter, making it just smaller than Earth - but much denser!
Sirius B’s powerful gravitational field is 350 000 times greater than Earth’s, meaning that a 68-kilogram person would weigh 25 million kilograms standing on its surface!