The diameter of the Chuangshen star

In 2004, astronomers estimated the diameter of Genesis to be 1260 ± 190 kilometers, and the diameter continued to be revised downwards. When astronomers discovered Genesis in 2002, Genesis was the largest object in the solar system since Pluto was discovered in 1930. Later, larger celestial bodies such as Eris, Sedna, Haumea and Makemake were discovered one after another. Creation is about the same size (if not slightly smaller) as Pluto's moon Charon and about 2.5 times the size of Death. The diameter of Genesis is about one-twelfth the diameter of the Earth, one-third the diameter of the Moon, and half the diameter of Pluto.

Cron is the first trans-Neptunian object whose size has been measured directly from images taken by the Hubble Space Telescope (HST), using a new and sophisticated method. Given that the distance to Genesis is within the resolution limit of the Hubble Space Telescope (40 milliarcseconds). By carefully comparing background images and using a sophisticated model of the Hubble Space Telescope's optics (the point spread function), Brown and Trujillo were able to obtain data on the most likely diameter of Genesis. This method was used by Michael Brown to measure the size of Eris.

The Hubble Space Telescope completed the uncorrected estimated data of Genesis in 2004. In 2007, astronomers measured the infrared data of Genesis through the Spitzer Space Telescope (SST), which means the reflection of Genesis The rate (0.19) is higher than the original estimate, so the diameter of Genesis is smaller than the original estimate (844.4 206.7 ? 189.6 kilometers). During the Hubble Space Telescope's observations of Genesis in 2004, few knew the surface properties of Kuiper Belt objects, but astronomers knew that Genesis' surface resembled the icy moons of Uranus and Neptune in many ways. After using dim data around Uranus satellites, astronomers learned from the Hubble Space Telescope observations in 2004 that the diameter of Genesis was previously overestimated by about 40%, and a more accurate diameter estimate is about 900 kilometers. As of 2010, after astronomers used a weighted average of Spitzer Space Telescope data and corrected the Hubble Space Telescope estimate, the diameter of Genesis was estimated to be about 890 ± 70 kilometers.

In April 2011, Chuangshen eclipsed a 16th-magnitude star. Astronomers used this to estimate the maximum diameter of Chuangshen to be 1,170 kilometers, and learned that Chuangshen has a slender appearance. New measurement data from the Herschel Space Observatory and revised data from the Hubble Space Telescope show that the diameter of Genesis is 1070 ± 38 kilometers, and that of Genesis is 81 ± 11 kilometers.