Inexperience....
If you have to ask this question, this shows your total lack of understanding about the handling of the aircraft. As in the previous post, there is no 'defined' angle. If you have to start asking that question then obviously you've already exceeded the limits for it or have gotten into something way beyond your capabilities.
ANY angle, combination of wind, drift, mis-alignment of the aircraft is cause for concern. Best you fly on CAVOK days until you get some understanding.