The gas planet is 13,000 light years away making it one of the most distant planets discovered.
It is unknown how the planets in our galaxy, Milky Way are distributed, whether they are all located in the center of the galaxy or evenly distributed, this discovery could solve this mystery to a certain level.
OGLE’s warsaw telescope is at the Las Campanas Observatory in Chile.
This telescope uses a technique called microlensing.
Microlensing occurs when one star passes in front of another star, and its gravity acts as a lens and magnifies and brightens the distant stars light, if that foreground star is orbited by a planet, the planet causes a blip in the magnification.
Astronomers are using this blip to find planets in the center of the galaxy which is 27,000 light years away and star crossings are more common.
With this technique 30 planets have been discovered, and the farthest planet discovered is about 25,000 light years away.
With this technique planets in the solar neighborhood and in the center of the galaxy have been discovered.
The problem with this technique is that it cannot tell the distance between the planet and the star, as the passing star magnifies the light of the distant star, but rarely can be seen and hence it becomes difficult to measure the distance.
About half of the planets location is not determined.
And Splinter helps out with determining the distance, Spitzer is about 128 million miles away from the earth and when it observes microlensing event, it will see the star brighten at a different time because of the large distance between the two telescopes, this technique is called parallax.
Together it is not only possible to determine the distance but also the mass of the planet.
“We’ve mainly explored our own solar neighborhood so far, now we can use these single lenses to do statistics on planets as a whole and learn about their distribution in the galaxy,” said Sebastiano Calchi Novati, a Visiting Sagan Fellow at NASA’s Exoplanet Science Institute at the California Institute of Technology, Pasadena.