This summer, astronomy enthusiasts will have the rare chance to observe Comet Tempel 2, a celestial object roughly 6.2 miles in diameter—comparable in size to the asteroid famously associated with the mass extinction of the dinosaurs. Although its dimensions are imposing, experts confirm that the comet is completely harmless and poses no threat to Earth.
The comet, first documented over a century and a half ago, will make its closest approach to our planet on August 3. Observers equipped with binoculars or small telescopes and fortunate enough to enjoy clear night skies can look forward to a remarkable display of this historic visitor from space, which was initially spotted 153 years ago.
A Historic Visitor Returning to Our Skies

The story of Tempel 2 traces back to July 4, 1873, when German astronomer and well-known comet hunter Wilhelm Tempel first observed a faint moving object in the constellation Pisces. Tempel’s observations continued over subsequent nights, confirming the presence of this celestial body as it traveled in a southeasterly direction. Since then, the comet has been a periodic visitor to the inner solar system, though not always visible under ideal conditions.
This summer’s opportunity to witness Comet Tempel 2 is especially notable, given its long recorded history and sizable dimensions, offering both amateur and professional astronomers a fascinating glimpse into a persistent cosmic traveler whose orbit brings it near Earth on a cyclical basis.