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.
Facts about Uranus. 1  Uranus was officially discovered by Sir William Herschel in 1781. 2  Uranus turns on its axis once every 17 hours, 14 minutes. 3  Uranus makes one trip around the Sun every 84 Earth years. 4  Uranus is often referred to as an âice giantâ planet. 5  Uranus hits the coldest temperatures of any planet. With minimum atmospheric temperature of -224Â°C Uranus is nearly coldest planet in the solar system. While Neptune doesnât get as cold as Uranus it is on average colder. The upper atmosphere of Uranus is covered by a methane haze which hides the storms that take place in the cloud decks.