一看在4月29日越過地球的小行星1998 OR2,當天最接近只距離地球400萬哩(600萬公里)

一看在4月29日越過地球的小行星1998 OR2,當天最接近只距離地球400萬哩(600萬公里)


First glimpses of the huge asteroid – (52768) 1998 OR2 – that will pass closest to Earth on April 29.

Radar image of asteroid 1998 OR2, acquired April 18, 2020. According to current estimates, this space rock is probably at least a mile wide (1.8 km) and maybe 2 1/2 times that long (4.1 km). Image via Arecibo Observatory in Puerto Rico.

At its closest on April 29, the asteroid will be 4 million miles (6 million km) from us, or about 16 times the Earth-moon distance.

Charts, tips, images, how to watch online here.
https://earthsky.org/astronomy-essentials/asteroid-52768-1998-or2-april-2020-how-to-see

The Virtual Telescope Project in Rome will host a free, online public viewing of the asteroid on April 28, 2020.
https://www.virtualtelescope.eu/webtv/

https://m.facebook.com/story.php?story_fbid=2606267176367130&id=100009516205564