Asteroid 2012 QG42: where to find it in the sky
All around, there is a great interest for this asteroid. 2012 QG42 is going to have a close encounter with our planet, touching a minimum distance of about 7.5 times the distance of the Moon. They will be a bit less than 3 millions of km, so there are no collision risks at all. It will be just fun!
On 12 sept. the Virtual Telescope will be offering a free, online live coverage, but if you want to see the asteroid yourself, be sure to have a mid-sized telescope. It will be much fainter than the dimmest stars you can see with the naked eyes under a carbon-black sky. The asteroid will be brighter before the close encounter (early on Sept. 14), around mag. 13.5, then being fainter than mag. 14 and getting dimmer soon over the next days.
Above you can see a star map showing the asteroid each day at 00:00 UT. If you need an accurate ephemerides, please check this page.
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