lunedì 30 gennaio 2017

January 31



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 January 30, 2017 there were potentially hazardous asteroids.
Recent & Upcoming Earth-asteroid encounters:
Asteroid
Date(UT)
Miss Distance
Size
2017 BM30
Jan 25
4.7 LD
22 m
2000 WN107
Jan 26
62.3 LD
2.8 km
2017 BA7
Jan 26
1.1 LD
12 m
2017 AK3
Jan 26
11.3 LD
52 m
2016 YP4
Jan 26
12.6 LD
18 m
2017 BH30
Jan 30
0.1 LD
8 m
2017 BJ30
Jan 31
1 LD
21 m
2017 BY5
Jan 31
10.4 LD
29 m
2017 BT6
Jan 31
13.1 LD
47 m
2017 BB7
Jan 31
3 LD
10 m
2017 BB6
Feb 2
5.6 LD
16 m
2005 VL1
Feb 3
11.4 LD
18 m
2017 BG30
Feb 5
2.5 LD
6 m
2013 FK
Feb 5
7.1 LD
101 m
2017 BK30
Feb 5
8.6 LD
14 m
2017 BQ6
Feb 7
6.6 LD
240 m
2017 BM3
Feb 8
12.6 LD
109 m
2014 DV110
Feb 10
9.8 LD
45 m
2015 QR3
Feb 12
13.1 LD
31 m
2017 BW
Feb 17
4.6 LD
88 m
2013 WT67
Feb 17
44.2 LD
1.1 km
1992 FE
Feb 24
13.1 LD
275 m
1998 QK56
Feb 24
53 LD
1.2 km
2012 DR32
Mar 2
2.7 LD
52 m
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.

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