Posted on 02/22/2015 7:43:37 AM PST by Red Badger
Scholz’s star and its brown dwarf companion (foreground)
The Sun (left, background) would have appeared as a brilliant star.
Yeah. About a million miles between individual asteroids on average from what I’ve read.
But it looks good on paper................and the Interwebs.............
Space Ping! Cataclysm Ping?................
Maybe that’s why Pluto’s orbit is so skewed?
...
Maybe not this particular star, but something put Pluto where it is. Triton, a moon of Neptune is believed to be a Kuiper Belt Object like Pluto and very similar in size and composition. Some believe the asteroid Ceres is also a KBO. We’ll know soon since a spacecraft is already sending pictures of Ceres and will be in orbit soon.
Oh, yeah. Way to the left there.
You’re right. My fault.
Good catch. Thanks.
Makes you wonder what would happen if it actually came close.................like up close and personal close...............
I wonder if we would have survived. Think of the tidal havoc alone.
Think of Mt Toba ... 69-77,000 years ago, and we almost didn’t ...
Hmm. 77,000, eh?
A lot speculation has been made over the years regarding gravitational components of the Sun-Earth-Moon system to tectonics.
It doesn’t explain all but...just saying.
so... it is now 20 light years away and it’s closest approach was 0.8 LY. 70,000 years to travel 19.2 LY. That is a relative speed of 3061 MPH.
I got 184,000 miles per hour.
Thanks Red Badger. It's previously posted, Star Blasted Through Solar System 70,000 Years Ago, but I've added it to two lists, and here's the ping messages with no ping. :')
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So... 1 Light year is 186,000 [mi]/[sec] x 31,536,000 [sec]=5,865,696,000,000 [mi].
The object has travelled a relative distance of 19.2 light years since passing:
19.2 x 5,865,696,000,000 [mi] = 112,621,363,200,000 [mi].
It was 70,000 year since it passed:
70,000 [yr] x 31,536,000 [sec]/[yr] x 1/60 [min]/[sec] x 1/60 [hr]/[min] = 613,200,000 [hr]
Velocity=Distance/Time:
112,621,363,200,000 [mi] / 613,200,000 [hr]=183,661 MPH.
You are right... I ran it 2x before on my phone and got the same (wrong) number... divided by 60 once too many times both times apparently. I was mostly interested what the orbital velocity of the system is... as in, are this thing and the sun in orbit around each other? Is it returning? I then just shrugged it off because I will probably be hit by a bus crossing the street tomorrow anyways.
I "C" you made an error there, 184,000 miles per second.
*nevermind*
Kolob
Nope, never returning. It’s far, far above solar escape velocity at that distance. Here’s a color visible+infrared picture of the star I took last weekend though:
http://h.dropcanvas.com/vrq2y/ScholzHDRLabeled2.jpg
And here’s an animation of its motion over the last 60 years. It’s the star moving in the center of the image:
http://h.dropcanvas.com/vrq2y/scholzanimationfullresolution.gif
It gets suddenly brighter in the last frame because my image consisted of red+infrared light whereas the others used in the animation were red light alone.
It’s amazing to see several other objects in motion in that gif... and Scholz’s Star is the one that is supposed to be moving nearly directly away from our solar system! Thanks for sharing this! Seriously, thanks.
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