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.
Although Neptune, the farthest planet from the sun, is pretty damn cold (-360 degrees Fahrenheit), Uranus takes the prize for being our solar systemâs coldest planet. The lowest temperature ever recorded on Uranus was -371 degrees Fahrenheit. Scientists arenât exactly sure why Uranus, which is more than a billion miles closer to our star than Neptune, boasts colder temperatures, but some experts believe the planetâs odd orientation or energetic atmosphere are to blame for the loss of heat.