Comet 12P/Pons-Brooks, nicknamed the "Devil's Comet" for its horned appearance, made headlines when it zipped past Earth and flared as it circled the sun. Despite the ominous name, scientists assure that this celestial phenomenon does not pose any threat to our planet. Moreover, the comet's size and behavior make it an interesting study subject.
The last time the Devil's Comet appeared in Earth's sky was over 70 years ago. Astronomers estimate that the size of the comet's nucleus, i.e. its solid part, is approximately 20.4 km in diameter, which is twice the size of Everest. This is a significant departure from the norm, as most comets are between 0.6 and 30 km wide.
Scientist explaining Devil's Comet
Scientists explain that the Devil's Comet is not only large but also rare. Her next appearance is expected next spring, but don't worry - she won't be rushing back. At its closest point it will still be farther from Earth than the Sun.
The Devil's Comet is notable not only for its size but also for its brightness and peculiar behavior. The "horns" that give it its devilish nickname are actually tails of gas and dust created by explosive flares that scientists are still trying to understand. Two such flares have already been observed this year - one in July, the other earlier this month.
According to the expert, such flares occur when comets become much more active, emitting huge amounts of gas and dust in a short period of time. The comet then brightens rapidly before returning to its previous brightness level. What makes Devil's Comet so intriguing? The intensity and frequency of these flares are intriguing.
Scientists are surprised by the frequency and location of these explosions. One theory is that comets contain certain forms of ice that, when first exposed to solar heat, cause volatiles to explode. However, such explosions are usually Explosions observed closer to the Sun are rare, perhaps twice every five years, while Comet Pons-Brooks explodes more frequently and at a considerable distance from the Sun. It is currently even further from us than Mars, where temperatures are not particularly high. The question arises where the energy for such powerful flares comes from and why they occur so often.
As the Devil's Comet continues its 71.2-year journey around the Sun, it is expected to peak in brightness in mid-April 2024. This celestial spectacle is eagerly awaited by both professional astronomers and amateur stargazers.
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