Comets and asteroids to the untrained eye contain similar visual qualities.
They are generally similar sized- being larger than governed meteorite of 30 feet in diameter. However they can be astronomical in size-With a 500 km diameter span.The main difference conveyed is not so much on property but on their visual element.Asteroids contain an 'aurora' in their outer geometry often described as 'haziness' to the nakedEye. They both have inherently destructive capabilities having high mass and exceptional clocking speed.Asteroids were discovered relatively late due to their nature and poor light emmition.The first discovered was back in 1801 as 1ceres. They were generally noticed thereafter in the outer Jupiter rings forming clusters in the gravitational Field.
Speed and power
Almost every theory concludes that one day earth will see an impact greater enough to destroy Life in its entirety.
If we were to look back 65 million years ago life changed, with the impact of a Asteroid creating the Chicxulub Crater;
Speed and power
Almost every theory concludes that one day earth will see an impact greater enough to destroy Life in its entirety.
If we were to look back 65 million years ago life changed, with the impact of a Asteroid creating the Chicxulub Crater;
If we were to assume from data researched that the crater in its maximum diameter was 193 km wide the asteroid would have been close to 9,550 metres in diameter, with a density value of 3.0g/cm3 (an average rock from your garden)
The speed needed to create this sort of impact would have been 21km/sec at a 45 degree angle.To have any sort of idea of this speed I would calculate it would be a spec in the sky for a 8x telescope to impact in less than a third of a second.
Alternatively a blackbird fighter jet (the fastest known plane) - would reach a distance of 4 metres in a 100 metre sprint before Losing the race.
Near misses?
Apophis 99942 is an Asteroid named from Ancient Greek customs; Meaning 'uncreator'- 'serpent dwelling in the darkness'.It has had a varying degree of prophesied danger.
Near misses?
Apophis 99942 is an Asteroid named from Ancient Greek customs; Meaning 'uncreator'- 'serpent dwelling in the darkness'.It has had a varying degree of prophesied danger.
In 2004 it had a high Torino scale for impact-Nearing 2.6 percent. This has now been downgraded-However the threat remains due to the fact that it ' could pass through agravitational field in 2029 which could lead to a return visit in 2036. It has an approximate size of 1300 metres.
An impact on this Scale will off- load a 900 megaton explosion 5 times as powerful as Krakatau. Although crippling for many thousands of square kilometres-It is unlikely to cause a global winter or permanent change to the world as we know it.
1950 da
Sighted in 1950 then lost for half a century 1950 da is Substantially larger than apophis at 1-1.6 km in diameter it has a relatively fast orbit, leading to two possible directions for the future;
one would mean it could miss earth by tens of millions of miles.
The other has a 1/300 chance of hitting earth. This possible impact would come to our 12th generation descendants in 2880. The impact of such a dense asteroid is likely to be catastrophic sending the earth back to the ice age, and would cause the global extinction of life and mankind Therefore many deflection contingencies are now coming into place such as rocket motor propulsion to alter the impending flight path.
