Secretariatâs grandsires fared a bit better, with grandsons A.P. Indy a Horse of the Year winner and great-granddaughter Rags to Riches the 2007 Belmont Stakes champion. In the fall of 1989, the 19-year-old champion developed laminitis, an incurable hoof condition; he was euthanized in October of that year.
Quick Answer. The average daytime and the average night-time temperature of Uranus is -193 degrees Celsius. There is no change in the temperature from day to night for the seventh planet in the solar system. Uranus is the coldest planet in this solar system, even though it is not the furthest planet from the sun.
The atmosphere of Uranus is composed of 83% helium, 15% methane and 2% methane plus trace amounts of other gases such as ethane. The average temperature of the surface of Uranus is 49Â° Kelvin or -224Â° Celsius.What makes the planet so cold is that it has a low internal temperature.he atmosphere of Uranus is composed of 83% helium, 15% methane and 2% methane plus trace amounts of other gases such as ethane. The average temperature of the surface of Uranus is 49Â° Kelvin or -224Â° Celsius.