Star of Bethlehem? Jupiter and Venus converge in night sky
On June 30, Jupiter and Venus will converge and create a dramatic 'star' in the Western sky after sunset.
Jupiter and Venus are set to converge in an epic sky event.
NASA
Jupiter and Venus will merge into a dazzling "super-star" in the Western horizon by the end of June, .
The conjunction of the two planets has been building during the month of June and will culminate in a spectacular display on June 30.聽鈥淓very night in June, the separation between Venus and Jupiter will visibly shrink,鈥� says NASA.
A conjunction is when two or more objects appear very close together on the sky.
On the evening of June 30, Venus and Jupiter will appear in the sky just a third of a degree apart. 鈥淭hat's less than the diameter of a full Moon.聽You'll be able to hide the pair not just behind the palm of your outstretched hand, but behind your little pinky finger,鈥�
suggests that聽a similar rare conjunction of Venus and Jupiter may have been what's been called the "Star of Bethlehem" in 3-2 BC.聽
While the conjunction is certainly visible with the naked eye, Sky and Telescope says viewing it with a telescope or binoculars will offer a different perspective: 鈥淏oth planets will crowd into same telescopic field of view, Venus appearing as a fat crescent and round Jupiter accompanied by its four large moons. The two planets will appear nearly as the same size, but Jupiter, though much larger in reality, is much farther away.... Their globes will contrast dramatically in brightness, with Venus鈥檚 crescent appearing dazzling white compared to Jupiter鈥檚 duller, striped cloud deck.鈥�
Pat Hartigan, an astronomer at Rice University, 聽the conjunction on June 30 is the best one we will have for over a decade, rivaled only by one on March 1, 2023, which will not be quite as close.
So where and when should we look for it? Look to the west-northwest as soon as it gets dark, says聽Dr. Hartigan. "After about two hours for most latitudes the objects will become difficult to observe as they begin to set. They are bright. You might mistake them for airplanes."
Is this a significant astronomical event? Not really. "These planetary groupings in the sky have no effect on Earth or human affairs 鈥� except for one," says聽Alan MacRobert at Sky & Telescope. "They can lift our attention away from our own little world into the enormous things beyond. That's what amateur astronomers do all the time."
[Editor's note: The original story incorrectly indicated when the last, close convergence of Jupiter and Venus occurred.]