It must be noticed that the sun's apparent diameter is not always the same.

The variation of the apparent diameter corresponds (inversely) to the variation of distance.

Mars has been steadily approaching, tripling its apparent diameter as seen through telescopes since January.

They again became silent, watching Jupiter, an enormous moon some seven degrees in apparent diameter.

This cloud was nearly spherical in form, with an apparent diameter of about a thousand yards.

Moon's mean apparent diameter - 31 min.

Moon's maximum apparent diameter - 33 min.

Moon's minimum apparent diameter - 29 min.

Found a sensible diminution in the earth's apparent diameter, besides a material alteration in its general color and appearance.

While such discussions were going on, their subject gradually approached, growing larger in apparent diameter, and of a more brilliant lustre.

For seven or eight days we saw no material increase in its apparent diameter, and but a partial alteration in its color.

All that he saw in that instant was a glaring ball of electric white, three times the apparent diameter of the sun.

Sun apparent diameter 31 minutes 5 seconds.

Great decrease in the earth's apparent diameter, which now subtended from the balloon an angle of very little more than twenty-five degrees.

The thread is arranged on the stage so as to point towards the observer, and the apparent diameter is read off on the eyepiece scale.

Observed meridian altitude of sun lower limb 2 degrees 35 minutes 20 seconds, sun apparent diameter 29 degrees 20 minutes.