This NASA Scientist Is So Excited About the Mercury Transit of 2019. Here's Why

rod

Oct 22, 2019
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Fun 7 minute video here. While I viewed the Mercury transit yesterday using my 90-mm refractor telescope, at mid-point near 1019 or so EST, the immense difference in size of Mercury and the Sun was very obvious in the eyepiece field of view! Mercury close to center of the Sun at that time. Something to behold and ponder the varieties of the cosmos and size of the solar system :) My field of view was 1-degree across at 71x. The Sun's angular size near 1938 arcsecond, Mercury disk silhouette near 10 arcsecond size. The Sun was nearly 194x larger in size in the field of view! A spectacular sight if any did observe using solar filters and good telescopes and eyepieces.
 

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