Question

WHAT IS EXOPLANET???? ​

Answer 1

An exoplanet or extrasolar planet is a planet outside the Solar System. The first possible evidence of an exoplanet was noted in 1917, but was not recognized as such.[4] The first confirmation of detection occurred in 1992. This was followed by the confirmation of a different planet, originally detected in 1988. As of 1 January 2020, there are 4,160 confirmed exoplanets in 3,090 systems, with 676 systems having more than one planet.[5]

There are many methods of detecting exoplanets. Transit photometry and Doppler spectroscopy have found the most, but these methods suffer from a clear observational bias favoring the detection of planets near the star; thus, 85% of the exoplanets detected are inside the tidal locking zone.[6] In several cases, multiple planets have been observed around a star.[7] About 1 in 5 Sun-like stars[a] have an "Earth-sized"[b] planet in the habitable zone.[c][8][9] Assuming there are 200 billion stars in the Milky Way,[d] it can be hypothesized that there are 11 billion potentially habitable Earth-sized planets in the Milky Way, rising to 40 billion if planets orbiting the numerous red dwarfs are included.[10]

Answer 2

Answer:

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Explanation:

An " exoplanet " is the type of planet which lies outside the solar system ! First possible evidence was noticed in 1917 , confirmation of detuction was done in 1992 ! Common example of it is ' Keplar ' planets etc ..