Final answer:
Without specific data pertaining to Pollux and the nebula's positions, it's not possible to provide an accurate answer. The student should apply the methods for calculating angular separation to find the degree of separation between Pollux and the planetary nebula.
Step-by-step explanation:
To solve for how many degrees apart Pollux and the planetary nebula were, it's important to recognize that the information provided in the question prompt does not directly answer this question. However, if the question is part of a series of questions on measuring angular separation in astronomy, then understanding the concept of angular measurement would be critical.
The mention of scales such as 9.04° and 15.56° in the provided information suggests that objects in the sky can be measured in degrees of angular separation. Nonetheless, without specific data pertaining to Pollux and the nebula's positions, an accurate answer cannot be provided. The student is encouraged to apply the methods for calculating angular separation to the specific scenario involving Pollux and the planetary nebula to determine their degree of separation.