Discovery | |
---|---|
Discovery date | June 2016 |
Transit | |
Orbital characteristics | |
0.2061±0.0024 au | |
31.70603±0.00006 [1] [2] d | |
Inclination | 88.477±0.0.06 [2] |
Star | HIP 41378 [2] |
Physical characteristics | |
Mean radius | 2.727±0.06 R⊕ |
Mass | 4.4±1.1 M⊕ |
HIP 41378 c (also known as EPIC 211311380 c) is an exoplanet orbiting around the F-type star HIP 41378. It has a radius about 2.7 times that of Earth. [2]
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. 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 October 2021, there are 4,843 confirmed exoplanets in 3,579 planetary systems, with 797 systems having more than one planet.
Kepler-90g is a super-puff exoplanet orbiting the early G-type main sequence star Kepler-90, one of eight planets around this star discovered using NASA's Kepler space telescope. It is located about 2,840 light-years (870 pc) from Earth, in the constellation Draco. The exoplanet was found by using the transit method, in which the dimming effect that a planet causes as it crosses in front of its star is measured. It orbits its parent star about every 210.5 days at a distance of 0.71 astronomical units.
K2-33b is a very young super-Neptune exoplanet, orbiting the pre-main-sequence star K2-33. It was discovered by NASA's Kepler spacecraft on its "Second Light" mission. It is located about 456 light-years away from Earth in the constellation of Scorpius. The exoplanet was found by using the transit method, in which the dimming effect that a planet causes as it crosses in front of its star is measured.
HIP 41378 is a star located 348 light-years away in the constellation of Cancer. The star has an apparent magnitude of 8.92. This F-type main sequence dwarf has a mass of 1.15 M☉ and a radius of 1.25 R☉. It has a surface temperature of about 6,251 K.
HIP 41378 b is an exoplanet orbiting around the F-type star HIP 41378. It has a radius about 2.6 times that of Earth.
HIP 41378 d is an exoplanet orbiting around the F-type star HIP 41378. It has a radius about 3.5 times that of Earth.
HIP 41378 e is an Exoplanet orbiting around the F-type star HIP 41378. It has a radius of 4.9 times that of Earth.
HIP 41378 f is an exoplanet orbiting around the F-type star HIP 41378. It has an anomalously large radius for a planet of its size and temperature, therefore the radius may actually be that of an optically thick ring system. It is located within the habitable zone of its parent star.
GJ 357 is an M-type main sequence star with an unusually low starspot activity. It is located 31 light-years from the Solar System.
HIP 65426 b is a super Jupiter exoplanet orbiting the star HIP 65426. It was discovered on 6 July 2017 by the SPHERE consortium using the Spectro-Polarimetric High-Contrast Exoplanet Research (SPHERE) instrument belonging to the European Southern Observatory (ESO). It is 385 light-years from Earth. It is the first planet discovered by ESO's SPHERE instrument.
A super-puff is a type of exoplanet with a mass only a few times larger than Earth’s but with a radius larger than that of Neptune, giving it a very low mean density. They are cooler and less massive than the inflated low-density hot-Jupiters.
HD 121056 is a K-type giant star 209 light-years away in the constellation of Centaurus. Its surface temperature is 4867±49 K. HD 121056’s concentration of heavy elements is similar to the Sun, with a metallicity Fe/H index of 0.020±0.031, although the star is enriched in lighter rock-forming elements like magnesium and aluminum.
L 98-59 is a bright M dwarf star, located in the constellation of Volans, at a distance of 10.623 ± 0.003 parsecs, or 34.648 ± 0.01 light-years, as measured by Gaia.