The observatory telescope has 22 times the magnifying power compared to the small telescope.
Data;
To solve this question, we have to divide the large telescope by the small telescope to calculate it's magnifying power.
[tex]x = \frac{3300}{150}=22[/tex]
The magnification of the observatory telescope is 22 times greater or larger than the small telescope.
Learn more on division of numbers here;
https://brainly.com/question/7068223