The angular diameter can be
calculated by using the formula,
Angular diameter = 57.3 x
physical diameter / distance.
The physical diameter of the
sun = 1.4 x 10^6 km.
The minimum distance of Mars
from Sun = 205 x 10^6 km
The minimum angular diameter of
the Sun as seen from Mars is:
Angular diameter = 57.3 x
physical diameter / distance = 57.3 x (1.4 x 10^6 km / 205 x 10^6 km) = 0.39
degrees.
The maximum distance of Mars
from Sun = 249 x 10^6 km.
The maximum angular diameter
of Sun as seen from Mars is,
Angular diameter = 57.3 x physical
diameter / distance = 57.3 x (1.4 x 10^6 km / 249 x 10^6 km) = 0.32 degrees
