A giant ball of ICE hits a star

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A giant ball of ice hitting a star would begin to boil off before making contact, similar to a comet's tail. If the ice mass were sufficiently large and fast, some fragments might survive until impact. However, the overall effect on the sun would likely be negligible. The sun's violent processes far exceed the impact of a moon-sized ice ball. Thus, such an event would not significantly alter the sun's behavior or characteristics.
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Well, long before it would "hit" our sun, it would start to "boil-off"(think comet tail)
But if it were big and fast enough perhaps part of it could survive until outer impact. But I doubt there would be any net effect on the sun.
The processes our sun goes through are much more violent than it's reaction to a moon-sized ice ball hitting it.
 

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