Recently, a team of scientists combined with accurate waveform data from the Saturn ring returned by the Cassini detector, published the most accurate method to date with the most accurate length of Saturn's day of 10 hours, 33 minutes and 38 seconds (Earth time) . Astrophysics Journal.
Saturn's rotation cycle is difficult to assess because of Saturn's unique nature. Astronomers at Tel Aviv University in Israel wrote a natural paper several years ago, using Saturn's gravitational field combined with its shape and density to measure, setting Saturn's day to 10 hours, 32 minutes and 45 seconds (Earth time). Astronomers can usually measure movements in their magnetic fields to find out what's happening inside. But Saturn's magnetic field is perfectly aligned with its axis, making its rotation very difficult to measure. In the 1980s, Voyager investigations measured radioactivity and estimated Saturn to be around 10 hours, 39 minutes, and 22.4 seconds a day. In 2006, astronomers used sophisticated equipment to measure Saturn's rotation cycle, and the results showed that Saturn was around 10 hours and 47 minutes a day.
Christopher Mankovich of the University of California, using waveform data from Cassini's Saturn ring, creates a wave of Saturn's ring (consisting of ice and solid rock) by the force of attraction of Saturn's gravitational field, comparing the vibrational frequency of patterns and waveform data to help researchers determine the length of Saturn's day .
"The researchers used waves in the ring to observe Saturn's characteristics and suddenly came up with answers that had been long-awaited for the basic features of Saturn. This is a fairly reliable result," said Cassini project scientist Linda Spilker in a statement. . "Saturn's ring helps get the answer."