Sextant
The angle between mirror 2 and the telescope is 60
o. One half of
this mirror is silvered and the other half is clear glass. Mirror M1 is completely silvered and
can be rotated on the arm M1V. When the arm is in position O the two mirrors are parallel to
each other.
Light coming from one object (B) makes an angle of A
o with light coming
from another object (C). Direction B could be the horizon and direction C the Sun or a
star.
