When we look at the sun, we always
wonder how big it would appear looking at it from different planets. I have
made this Image to show the relative size of Sun as seen from
different planetary distances (scroll down after the table). The angular size of Sun with respect
to distance is easy to calculate. Divide diameter of Sun by its
distance form earth and then multiply the result by 57.3 to get the
angular size of sun. Using this we can get angular size of Sun from
different planets...
Angular size = diameter/distance *
57.3
Diameter of Sun = 1391000km
Distance from Earth = 150000000km
Angular size = 1391000/150000000
= 0.0092 * 57.3
Angular size of Sun as seen from earth
= 0.531degrees.
We can calculate and compare the relative angular
size of Sun seen from different planetary distances.
Sun Diameter = 1391000 kilometers


Planets

Distance from Sun
(when planet is closest to sun)

Angular diameter(in degrees)

Mercury

46000000

1.73

Venus

107000000

0.74

Earth

150000000 (mean distance)

0.53

Mars

206000000

0.38

Jupiter

740000000

0.10

Saturn

1352000000

0.05

Uranus

2741000000

0.029

Neptune

4444000000

0.017

Here is the a graphic of sun's
appearance at different distances...