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Apophis Day (2029)

"Don't look up!"

Apophis (officially 99942 Apophis) is a near-Earth asteroid discovered in 2004. It gained attention due to initial calculations suggesting a potential close encounter with Earth in 2029, and again in 2036, raising concerns about a possible impact. Named after the Egyptian god of chaos, darkness, and disorder, Apophis is about 370 meters (1,210 feet) in diameter.

Here are its stats:

Apophis – April 13, 2029 Close Approach Object Name: (99942) Apophis

Closest Approach: April 13, 2029

Distance: ~0.000254 AU (~38,000 km / ~23,600 miles)

Size: ~340 meters in diameter

Speed at Approach: ~7.4 km/s (relative to Earth)

Rarity/Impact Risk:

Originally given a Level 4 on the Torino Impact Hazard Scale (the highest ever recorded).

It had a small chance of impacting Earth in 2029 or 2036, but follow-up observations have ruled out any impact for at least the next 100 years.

Rarity Score (Unofficial): 9 or 10 out of 10 for rarity (due to proximity and size)

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It will pass closer than many satellites orbiting Earth — and be visible to the naked eye over parts of Europe, Africa, and Asia.

Initially estimated to have a 2.7% chance of hitting Earth in 2029, a very high probability in NEO terms.

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Allegedly, once the data became more publicly scrutinized, additional calculations were made that ruled out any significant risk of collision ... hmmm ...

Regardless, defy destiny and dangerous space rocks by kilting up in this beautiful tartan with all the spirit of one's Celtic ancestry! 🖤 🤍 💚 🖤 🔭 😲 🪨 🪨 🪨

This tartan was designed on behalf of Charles Cockell, Professor of Astrobiology, School of Physics and Astronomy, University of Edinburgh to celebrate robotic and human science, exploration and outreach activities associated with the Moon or other airless bodies including asteroids, comets, Kuiper Belt Objects or other objects.

 

The tartan colours represent the following:  The grey background represents the minerals and rocks on airless bodies. The bold white line represents ice or salt deposits on some bodies, for example, icy comets or ice in the permanently shadowed craters of the Moon. The black line represents organic materials on comets, in lunar polar craters and other bodies. The green line represents life eventually established on these bodies in the form of human exploration and settlement. The silver line represents the future technological transformation of some of these bodies by human settlement and industry.


Many features of the moon are named after famous individuals.  Amongst others, several craters of the moon are named after Scottish scientists:  


  • The Neper crater is named after the Scottish mathematician, physicist, astronomer and astrologer John Napier.

  • The Mee crater is named after the 19th-century Scottish astronomer Arthur Butler Phillips Mee.

  • The Brewster crater is named after the Scottish physicist Sir David Brewster.

  • The Maxwell crater is named after the Scottish mathematical physicist James Clerk Maxwell.


For a full list of craters named after people, click asteroid Vesta!

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Officially registered tartan graphics on this site courtesy of The Scottish Tartans Authority.  Other tartans from talented tartan artists may also be featured.

2022

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