- Sep 1, 2010
- 5,902 (2.22/day)
Hah and it happens just when I was thinking of wimps, dark matter, neutrinos and Neptune! Ok I digress ...
Yeah that's it. They called it Kepler-19c. They found it by gravitational influence it has on Kepler-19b. They know it exists but not much else. They don't even know its brightness and I don't even talk about its mass and composition. We just can't see it. I wonder how it looks like.
That reminds me of Neptune. People didn't know about Neptune (back in the day), they predicted its existence by irregularities in the orbit of neighboring Uranus. Very interesting method. I've read about this few days ago.
Kepler-19b, which orbits the Sun-like star Kepler-19 in the constellation Lyra, has been found to have an 'invisible' world tugging on it.
Because Kepler-19b's transits around its star alternatively speed up and slow down by up to five minutes rather than running like clockwork, scientists determined that another planetary body must be tugging on it.