Question

1. if we were to go outside and look directly up, what altitude on the celestial sphere would we be looking at? clear all 90 degrees 0 degrees 60 degrees 30 degrees

Explanation:

Step1: Define altitude on celestial sphere

Altitude on the celestial sphere is measured from the horizon. When we look directly up, we are looking at the zenith.

Step2: Recall zenith altitude

The altitude of the zenith, which is directly overhead, is 90 degrees.

Answer:

90 degrees