You can see the constellation Aquila, the Eagle, in the northern hemisphere during the summer months, specifically from July to September.

Here's a more detailed breakdown:

* Best visibility: Aquila is at its highest point in the sky around midnight in late August. This means it's easiest to spot during this time.

* Other times: You can still see Aquila earlier in the summer evenings (around 10 pm in July) and later in the summer mornings (around 2 am in September).

* Location: Look for Aquila in the south-eastern sky.

Remember that the visibility of constellations can vary depending on your location and light pollution.