Asteroid Discovery From 1980 - 2010

View of the solar system showing the locations of all the asteroids starting in 1980, as asteroids are discovered they are added to the map and highlighted white so you can pick out the new ones.
The final colour of an asteroids indicates how closely it comes to the inner solar system.
Earth Crossers are Red.
Earth Approachers (perihelion less than 1.3 AU) are Yellow.
All Others are Green.

Notice now the pattern of discovery follows the Earth around its orbit, most discoveries are made in the region directly opposite the Sun. You'll also notice some clusters of discoveries on the line between Earth and Jupiter, these are the result of surveys looking for Jovian moons. Similar clusters of discoveries can be tied to the other outer planets, but those are not visible in this video.

Since the mid 1990's automated sky scanning systems comes online and we can see much higher discovery rates. Most of the surveys are imaging the sky directly opposite the sun and you'll see a region of high discovery rates aligned in this manner.

At the beginning of 2010 a new discovery pattern becomes evident, with discovery zones in a line perpendicular to the Sun-Earth vector. These new observations are the result of the WISE (Widefield Infrared Survey Explorer) which is a space mission that's tasked with imaging the entire sky in infrared wavelengths.

Currently we have observed over half a million minor planets, and the discovery rates snow no sign that we're running out of undiscovered objects.

Orbital elements were taken from the 'astorb.dat' data created by Ted Bowell and associates at Arecibo Observatory.

Video credit: Scott Manley / Armagh Observatory.

Category:

Science & Technology

Tags:

• Asteroid Discovery
• asteroids
• solar system
• astronomy
• universe
• orbiting
• space
• tom quick
• aquamarine

[Shucaritul]

@Hewpie It will make sense after you read the description.

[Hewpie]

Why are the 2010 observations from WISE in the form of concentric circles centred on the sun? I understand if the discovery pattern was in the form of radial spikes from earth, but concentric circles doesn't make sense to me...

[kettmz]

2012 IS COMING!!!!

[EwokFuica]

Holly crap!!!