Please choose the correct ending to complete the given sentence: Sports and Fitness: [header] How to find direction without a compass [title] Identify the big dipper. [step] The big dipper is comprised of seven of the sky's brightest stars, and is found either high or low in the northern sky, depending on the season. It also rotates around the north star, which is why it's important when you're trying to find your direction in the northern hemisphere.

Ending1: As long as you're located no lower than 23.5 degrees north latitude, the constellation is always above the horizon. Four of the stars form the big dipper's bowl, while the other three form a handle. Ending2: [substeps] The big dipper is the third brightest major star in the sky. This is called " the big dipper " because the center of the sky is located at this point. Ending3: If you want to use a compass, place your compass upright before you get too close to the big dipper. This will stretch out the center of the compass. Ending4: [title] Use a compass to find direction if possible. [step] If you can't find your direction in the southern hemisphere, you can use a compass to find which direction you're headed.

Answer format: ending1/ending2/ending3/ending4