https://www.cnbeta.com.tw/articles/science/1374289.htm自转速度是地球270倍 7年后人类再次发现白矮星双星系统
https://www.gamingdeputy.com/the-rotation-speed-is-270-times-that-of-the-earth-after-7-years-humans-discovered-the-white-dwarf-binary-system-again/https://www.sarao.ac.za/news/south-african-telescopes-contribute-to-discovery-of-a-new-white-dwarf-pulsar/Published today (15 June 2023) in Nature Astronomy, the research team describes the newly detected white dwarf pulsar, J191213.72-441045.1 (J1912-4410 for short), which is in a binary system with an orbital period of just over 4 hours. However, the white dwarf’s rotation period is just a little over 5 minutes long, meaning it’s spinning about 270 times faster than the Earth does.
