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jakeXT

(10,575 posts)
Tue Jan 27, 2015, 02:12 AM Jan 2015

News Flash: Asteroid Flying Past Earth Today Has Mini-Moon!



Wonderful news! Asteroid 2004 BL86, which passed closest to Earth today at a distance of 750,000 miles (1.2 million km), has a companion moon. Scientists working with NASA’s 230-foot-wide (70-meter) Deep Space Network antenna at Goldstone, California, have released the first radar images of the asteroid which show the tiny object in orbit about the main body.

While these are the first images of it, the “signature” of the satellite was seen in light curve data reported earlier by Joseph Pollock (Appalachian State University, North Carolina) and Petr Prave (Ondrejov Observatory, Czech Republic) according to Lance Benner who works with the radar team at Goldstone.

2004 BL86 measures about 1,100 feet (325 meters) across while its moon is approximately 230 feet (70 meters) across. The asteroid made its closest approach today (Jan. 26th) at 10:19 a.m. (CST), however it will peak in brightness this evening around 10 p.m. (4:00 UT) at magnitude +9.0. Unlike some flybys, 2004 BL86 will remain within a few tenths of a magnitude of peak brightness from 6 p.m. tonight (CST) through early tomorrow morning, so don’t miss the chance to see it in your telescope.

Don’t expect to see the diminutive moon visually – the entire system will only appear as a point of light, but I’m sure you’ll agree it’s cool just knowing it’s there.



http://www.universetoday.com/118505/news-flash-asteroid-flying-past-earth-today-has-mini-moon/
21 replies = new reply since forum marked as read
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News Flash: Asteroid Flying Past Earth Today Has Mini-Moon! (Original Post) jakeXT Jan 2015 OP
That's wild! lovemydog Jan 2015 #1
There a Marvin the Martian joke in here somewhere! Fearless Jan 2015 #2
knock it off with the flippant humor... BlancheSplanchnik Jan 2015 #7
Oh my! Fearless Jan 2015 #11
ok, that's it. I've had as much as I can take... BlancheSplanchnik Jan 2015 #12
+10000! Fearless Jan 2015 #13
.... BlancheSplanchnik Jan 2015 #14
Actually ... amb123 Jan 2015 #17
I didn't know that was possible underpants Jan 2015 #3
We've been mooned by an asteroid? n/t PoliticAverse Jan 2015 #4
Har! Panich52 Jan 2015 #5
We stayed up watching this asteroid last night albino65 Jan 2015 #6
companion moon! BlancheSplanchnik Jan 2015 #8
Got a pic of this with my phone dreamnightwind Jan 2015 #9
Maybe it's not really there... PCIntern Jan 2015 #10
This message was self-deleted by its author blackcrow Jan 2015 #15
"moon"?? Yeah...that's what that is. demwing Jan 2015 #16
... warrprayer Jan 2015 #18
Now THAT demwing Jan 2015 #19
! In_The_Wind Feb 2015 #20
Centripetal force Sunlei Feb 2015 #21

BlancheSplanchnik

(20,219 posts)
7. knock it off with the flippant humor...
Tue Jan 27, 2015, 12:52 PM
Jan 2015

Or I shall be forced to vaporize you with my P34 Space Modulator.

dreamnightwind

(4,775 posts)
9. Got a pic of this with my phone
Tue Jan 27, 2015, 01:45 PM
Jan 2015

So I was out at the coast (Sonoma county, CA) that evening when some people were staring out, wandering what they were looking at. Plane or planet? Well the thing wasn't behaving like either, watched it for a long time, took some pix with my cell phone, it was down near the horizon though not real low but I think it was magnified by the horizon effect.

When I got home I googled to see what it could have been. Zoomed in on the picture and the little moon is there too, amazing. This was Sunday evening. Tried to see it yesterday, was supposed to be better viewing, but it was cloudy here yesterday.

[img][/img]

PCIntern

(25,557 posts)
10. Maybe it's not really there...
Tue Jan 27, 2015, 01:46 PM
Jan 2015

maybe God projects a picture of it when someone looks through a telescope to make him or her think that there's something there. Maybe the whole vidsible Universe is just a hologram and God plays tricks on us making us think that we revolve around the Sun just to test our faith. Maybe when those satellites fly into space beyond the Earth that God traps them and sends back data and pictures of what He thinks we should see. Maybe it's just all an illusion...you know, when you're in a plane rolling down the runway, thousands of little angels come down and lift the plane into the sky.

Response to jakeXT (Original post)

 

demwing

(16,916 posts)
16. "moon"?? Yeah...that's what that is.
Tue Jan 27, 2015, 06:56 PM
Jan 2015


A 325 meter ice rock has the mass to hold a moon....riiiight...
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