[Tee tiong huat]

This discovery was announced at the 244th Meeting of American Astronomical Society, with its paper recently submitted to The Astrophysical Journal Letters. There are a number of possible explanations for star's velocity, researchers explored 3 of them.

With a velocity around 600 kilometers (373 miles) per/second or in one (1) second.

https://youtu.be/lUijqBYb83w?si=NSS30Tpx0wLpQM0q

All three options remain on the table. The best way to figure it out will be to examine the chemical composition of the star in greater detail. If J1249+36 was the companion of a white dwarf, the supernova could have left trace elements that polluted the L subdwarf's atmosphere. Conversely, globular clusters contain stars that all have similar compositional properties, so it may be possible to link the star to a home population that way.


And if neither of those pan out, we may need to look to the Milky Way's satellites, to determine whether this tiny, dim star is a stranger from outside the galaxy, just winking howdy as it passes through.

The discovery was presented at the 224th Meeting of the American Astronomical Society.