TECHNOLOGY

71 Years After, Comet 12P/Pons–Brooks Appears In Inner Solar System On April 21 And June 2, Returns 2095

<h4>71 Years After<&sol;h4>&NewLine;<p><strong><a href&equals;"https&colon;&sol;&sol;openlife&period;ng&sol;">OpenLife Nigeria<&sol;a><&sol;strong> has reliably gathered that Comet 12P&sol;Pons–Brooks is making its first visit to the inner solar system in 71 years&period;<&sol;p>&NewLine;<p>Comet 12P&sol;Pons-Brooks is one of the brightest known periodic comets&comma; with an orbital period of 71 years&period;<br &sol;>&NewLine;Chances to see this object are rare&period;<&sol;p>&NewLine;<figure id&equals;"attachment&lowbar;24453" aria-describedby&equals;"caption-attachment-24453" style&equals;"width&colon; 270px" class&equals;"wp-caption alignnone"><img class&equals;"size-full wp-image-24453" src&equals;"https&colon;&sol;&sol;openlife&period;ng&sol;wp-content&sol;uploads&sol;2024&sol;04&sol;Untitled-1-e1712167610740&period;jpg" alt&equals;"71 Years After&comma; Comet 12P&sol;Pons–Brooks Appears In Inner Solar System On April 21 And June 2&comma; Returns 2095 " width&equals;"270" height&equals;"141" &sol;><figcaption id&equals;"caption-attachment-24453" class&equals;"wp-caption-text"><em><strong>Comet 12P&sol;Pons–Brooks Appears in Solar System On April 21 And June 2<&sol;strong><&sol;em><&sol;figcaption><&sol;figure>&NewLine;<p>Before Monday&&num;8217&semi;s solar eclipse happens&comma; eagle eyed skygazers will have a once-in-a-lifetime opportunity to see a rare green comet&comma; dubbed the &&num;8216&semi;Mother of Dragons&&num;8217&semi;&comma; in the night&&num;8217&semi;s sky&period;<&sol;p>&NewLine;<p>According to astronomers&comma; Comet 12P&sol;Pons–Brooks is viewable at night from the northern hemisphere in early April&period;<&sol;p>&NewLine;<p>Larger than Mount Everest&comma; it should appear as a green blob with a hazy tail as it makes its first visit to the inner solar system in 71 years&period;<&sol;p>&NewLine;<p>To see Comet 12P&sol;Pons-Brooks&comma; interested persons are expected to look westwards in the night&&num;8217&semi;s sky and find the constellation of stars known as Aries the Ram&comma; which forms a loose V-shape&period;<&sol;p>&NewLine;<p>Over the next few weeks it will keep moving west towards Orion&comma; the constellation that looks like the great mythical hunter&period;<&sol;p>&NewLine;<p>&&num;8216&semi;The comet can now be found in the constellation of Aries which is visible in the early evening&comma; over in the west&comma;&&num;8217&semi; Gregory Brown&comma; astronomer at the Royal Observatory Greenwich&comma; told MailOnline&period;<&sol;p>&NewLine;<p><a href&equals;"https&colon;&sol;&sol;tribuneonlineng&period;com&sol;">&&num;8216&semi;It will only become visible after twilight and sets by around 10pm BST&period;<&sol;a><&sol;p>&NewLine;<p>&&num;8216&semi;While it may be possible to see with the unaided eye&comma; it is best to try and observe with a pair of binoculars or a small telescope&period;&&num;8217&semi;<&sol;p>&NewLine;<p>The public should look out for what looks like &&num;8216&semi;an irregularly shaped dirty snowball&&num;8217&semi;&comma; or a faint star-like blob with a hazy tail and a green tint&period;<&sol;p>&NewLine;<p>It looks green due to the presence of a molecule called dicarbon&comma; which emits a greenish glow from sunlight&period;<br &sol;>&NewLine;At the moment&comma; it is getting progressively closer to the sun and the Earth as it&&num;8217&semi;s pulled by the gravity of our star&period;<&sol;p>&NewLine;<p>On April 21&comma; it will come as close as 72&period;5 million miles &lpar;116&period;8 million km&rpar; to the sun&comma; while a close approach with Earth of 144 million miles &lpar;232 million km&rpar; will happen on June 2&period;<&sol;p>&NewLine;<p>But by this time it will be too late to view in the northern hemisphere&comma; according to Jessica Lee&comma; astronomer at the Royal Observatory Greenwich&period;<&sol;p>&NewLine;<p>&&num;8216&semi;From June onwards&comma; after the comet has passed the sun&comma; it will only be visible to observers in the southern hemisphere&comma;&&num;8217&semi; she told MailOnline&period;<&sol;p>&NewLine;<p>&&num;8216&semi;It will grow fainter and fainter again as it travels towards the outer solar system and won&&num;8217&semi;t approach the Earth again until 2095&period;&&num;8217&semi;<&sol;p>&NewLine;<p>12P&sol;Pons-Brooks is what is known as a cryovolcanic – or cold volcano – comet&comma; which means it exhibits volcanic activity&period;<&sol;p>&NewLine;<p>But instead of spewing out molten rock and lava like a volcano on Earth&comma; a cryovolcanic comet releases a mixture of gases and ice&period;<&sol;p>&NewLine;<p>When a cryovolcanic comet gets closer to the sun – like 12P&sol;Pons-Brooks is doing now – it heats up and builds pressure in the nucleus&period;<&sol;p>&NewLine;<p>The pressure continues to build until nitrogen and carbon monoxide explodes and flings out icy debris through large cracks in the nucleus&&num;8217&semi;s shell&period;<&sol;p>&NewLine;<p>These gaseous streams can form distinctive shapes when viewed through a telescope&comma; such as devil horns&comma; also described as a horseshoe or the Millennium Falcon from Star Wars&period;<&sol;p>&NewLine;<p>Just like planets&comma; comets in our solar system orbit the sun because they are attracted to the sun&&num;8217&semi;s massive gravitational pull&period;<&sol;p>&NewLine;<p>It takes 12P&sol;Pons-Brooks 71 years to complete an orbit of the sun&comma; but this is relatively short compared with the orbital length of most orbits which take thousands of years&period;<&sol;p>&NewLine;<p>Comets typically have highly &&num;8216&semi;elliptical&&num;8217&semi; orbits&comma; meaning they are elongated and not perfectly circular&period;<&sol;p>&NewLine;<p>These elliptical orbits take them very close to the sun at one point in their orbit &lpar;perihelion&rpar; and very far away from the sun at another point &lpar;aphelion&rpar;&period;<&sol;p>&NewLine;<p>Like all orbiting bodies&comma; the closer comets are to the sun&comma; the faster they move&period;<&sol;p>&NewLine;<p>12P&sol;Pons-Brooks is currently hurtling towards the sun – and therefore the Earth as well – at more than 40&comma;000 miles per hour &lpar;20 km per second&rpar;&period;<&sol;p>&NewLine;<p>But this could increase to over 100&comma;000 miles per hour as it makes its close approach to the sun&comma; otherwise known as its perihelion&period;<&sol;p>&NewLine;<p>After making its closest approach to us&comma; the space rock will be gravitationally flung back to the outer solar system and will not return until 2095&period;<&sol;p>&NewLine;

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