Question #582e8
1 Answer
Confirmed exoplanets: More than a thousand.
Explanation:
Earlier, in the last decade of the last century, ground telescopes
could identify planets by observing dimming of starlight, when a
planet of a star moved in front of the star.
Some earlier discoveries include Jupiter-size 51 Pegassi b, HD
208458 b, 55 Cancri and HD 80606 b.
Now and then since the beginning of this century, satellite
telescopes, Kepler, TESS, CHEOPS. CoRot, and PLATO, are/were
after exoplanets.
There is a graphical depiction of recent Kepler discoveries, in the
order of magnitudes (in Earth-mass unit) 16.52-1.42, in
the article
http://space.com/17738-exoplanets.html
The names of these exoplanets are Kepler 7b, 5b, 8b, 6b, 9b, 9c, 4b,
9d, 10b, 11b, 11c, 11c, 11d, 11e, 11f and 11g
The first four are more massive than our Jupiter.