[KarlInOhio]

I got 184,000 miles per hour.

[Rodamala]

Light travels at roughly 186,000 miles per second.
There are 31,536,000 seconds per year.

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.

[null and void]

I got 184,000 miles per hour.

I "C" you made an error there, 184,000 miles per second.

[null and void]

*nevermind*