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.
Video Transcript. Hi, my name is Eylene Pirez, and I'm an astrophysicist, and this is the average temperature of Uranus in Celsius.. Okay, so the first thing is that Uranus is actually one of the coldest planets in the solar system, and I'll explain why. So, first is the distance from the sun, and the second has to do with the density and pressures. So, the interior of Uranus can get as cold as 4,727 Celsius.