However, the Sun is much more complex than assumed by this model—both its temperature and density vary strongly with radius—and such excellent agreement (≈7% relative error) is partly fortuitous.
但是，太陽被這個模型假設的要複雜得多——它的溫度及質量都隨半徑而變動甚大——而且如此極佳的切合度（≈7%相對誤差）在一定情況下是偶然的。