This is a list of
exoplanet
An exoplanet or extrasolar planet is a planet outside the Solar System. The first confirmed detection of an exoplanet was in 1992 around a pulsar, and the first detection around a main-sequence star was in 1995. A different planet, first det ...
discoveries that were the first by several criteria, including:
* the
detection method used,
* the
planet type,
* the
planetary system
A planetary system is a set of gravity, gravitationally bound non-stellar Astronomical object, bodies in or out of orbit around a star or star system. Generally speaking, systems with one or more planets constitute a planetary system, although ...
type,
* the
star type,
and others.
The first
The choice of "first" depends on definition and confirmation, as below. The three systems detected prior to 1994 each have a drawback, with
Gamma Cephei b being unconfirmed until 2002; while the
PSR B1257+12
PSR B1257+12, alternatively designated PSR J1300+1240, is a millisecond pulsar, from the Sun, in the constellation Virgo, rotating at about 161 times per second (faster than the blade of a blender). It is also named Lich, after a powerf ...
planets orbit a pulsar. This leaves
51 Pegasi b
51 Pegasi b, officially named Dimidium (), is an extrasolar planet approximately away in the constellation of Pegasus. It was the first exoplanet to be discovered orbiting a main-sequence star, the Sun-like 51 Pegasi, and marked a breakthr ...
(discovered and confirmed 1995) as the first confirmed exoplanet around a
non-compact star.
By discovery method
By detection method
Some of these planets had already been discovered by another method but were the first to be detected by the listed method.
By system type
By star type
By planet type
Other
See also
*
Lists of exoplanets
A list is a set of discrete items of information collected and set forth in some format for utility, entertainment, or other purposes. A list may be memorialized in any number of ways, including existing only in the mind of the list-maker, but ...
*
List of exoplanet extremes
The following are lists of extremes among the known exoplanet
An exoplanet or extrasolar planet is a planet outside the Solar System. The first confirmed detection of an exoplanet was in 1992 around a pulsar, and the first detection around ...
*
Methods of detecting exoplanets
Methods of detecting exoplanets usually rely on indirect strategies – that is, they do not directly Astrophotography, image the planet but deduce its existence from another signal. Any planet is an extremely faint light source compared to its ...
Notes
References
{{exoplanets
*Planetary firsts
Extrasolar planet firsts
Extrasolar planets
An exoplanet or extrasolar planet is a planet outside the Solar System. The first confirmed detection of an exoplanet was in 1992 around a pulsar, and the first detection around a main-sequence star was in 1995. A different planet, first detect ...
Extrasolar planet firsts
Firsts
First most commonly refers to:
* First, the ordinal form of the number 1
First or 1st may also refer to:
Acronyms
* Faint Images of the Radio Sky at Twenty-Centimeters, an astronomical survey carried out by the Very Large Array
* Far Infrared a ...