The fist, held at arm's length, fills an angle of about
|A)||one tenth of a degree|
On the celestial sphere, the circle which is located 90 degrees from the zenith is the
The point directly over an observer's head is that observer's
The angular distance of an object from the horizon is its
The azimuth and altitude of an object located due south and on the horizon are
|A)||azimuth 0 degrees, altitude 180 degrees|
|B)||azimuth 180 degrees, altitude 0 degrees|
|C)||azimuth 90 degrees, altitude 0 degrees|
|D)||azimuth 90 degrees, altitude 90 degrees|
Which of the following would be the coordinates of a star which is setting in the northwest?
|A)||azimuth 180 degrees, altitude 90 degrees|
|B)||azimuth 145 degrees, altitude 0 degrees|
|C)||azimuth 300 degrees, altitude 0 degrees|
|D)||azimuth 75 degrees, altitude 90 degrees|
What are the altitude and azimuth (in degrees) of a star which is setting in the west?
|A)||altitude 45, azimuth 360|
|B)||altitude 90, azimuth 90|
|C)||altitude 0, azimuth 270|
|D)||altitude 30, azimuth 180|
How many seconds of arc are there in a degree?
During a night, the stars move generally
The prime meridian is a line of constant