
Over the past week, you may have noticed what appear to be two superbright stars near the horizon. Those aren’t stars; they’re planets in a celestial race around the sun. On Tuesday, Venus will come neck-and-neck with Jupiter.
That day, at 2:17 pm Universal Time or 10:17 am E.T., the two planets will be at their closest. You can see this unusual sight, known as a conjunction, from just about anywhere in the world.
The optimal viewing location, according to Jackie Faherty, an astrophysicist at the American Museum of Natural History in New York, is one where where the sun sets just as the planets approach one another. Complete darkness is not necessary to see these bright objects, but it helps.
Regardless of where you are, your viewing instructions are simple: At sunset, get away from buildings or trees that might block your view of the western sky. Stick an arm out, give a thumbs up, and squint your eyes. Venus and Jupiter should be about one third of a degree, or about a thumb’s width, apart.
https://www.nytimes.com/interactive/projects/cp/summer-of-science-2015/latest/watch-venus-take-jupiter-in-a-race-around-the-sun?smid=fb-nytimes&smtyp=cur