Tag Archives: asteroid

2012TC4 flyby

Asteroid 2012 TC4 flyby

This remarkable footage shows the flyby of asteroid 2012 TC4 during the night of 11/12 October 2017. At the time this was recorded, the estimated 10-20 m-diameter asteroid was approaching Earth. It made its closest approach at...

Magnitude for Florence Credit: ESA

Spotting asteroid Florence

Asteroid 3122 Florence was discovered in 1981. It’s named in honour of Florence Nightingale (1820-1910), the founder of modern nursing. With a diameter of ~4.3 km, Florence is among the largest of the near-Earth asteroids. ESA’s Rüdiger...

Halloween asteroid trajectory

Spotting the Halloween asteroid

While it won’t be visible to the naked eye, for anyone with a telescope, it should be visible, observation conditions (haze, etc.) permitting.

Galileo at work. Credit: ESA/I. Buczek

Finding a comet: the backstory

On 4 February, the Teide Observatory Tenerife Asteroid Survey (TOTAS) team was credited with discovering comet P/2014 C1, named ‘TOTAS’ (there’s a report today in the main ESA website). If you’re not an astronomer, you may have...

Asteroids passing Earth Credit: ESA/P. Caril

SMPAG: Summary of the first meeting

Summary of the first ‘SAMEPAGE’ meeting, 6-7 February 2014 at ESOC. Original article and more details via the nascent SMPAG website. In cooperation with the Action Team on Near-Earth Objects (AT-14) of the United Nations Committee on...