NEAs o NEOs

[gianse54]

Sres.:

De 976 NEAS pasamos en 24 hrs a 980 piedras

Fuente www.spaceweather.com

Near-Earth Asteroids

Potentially Hazardous Asteroids (PHAs) are space rocks larger than approximately 100m that can come closer to Earth than 0.05 AU. None of the known PHAs is on a collision course with our planet, although astronomers are finding new ones all the time.

On September 6, 2008 , there were 980 potentially hazardous asteroids.

Sept. 2008 Earth-asteroid encounters: Asteroid Date(UT) Miss Distance Mag. Size

2003 WT153 Sept. 7 5.8 LD 23 11 m

1996 HW1 Sept. 12 53 LD 12 3.7 km

2003 SW130 Sept. 19 8.6 LD 23 7 m

1998 UO1 Sept. 26 25 LD 18 2.0 km

Notes: LD means "Lunar Distance." 1 LD = 384,401 km, the distance between Earth and the Moon. 1 LD also equals 0.00256 AU. MAG is the visual magnitude of the asteroid on the date of closest approach.