YSES 2 b

YSES 2 b

Imaged at ESO/SPHERE/VLT by Bohn et al.
Discovery[1]
Discovery date	2021
Detection method	Imaging
Designations
Alternative names	TYC 8984-2245-1 b, 2MASS J11275535-6626046 b
Orbital characteristics[1]
Semi-major axis	114 AU
Orbital period (sidereal)	1176.5 y[2]
Physical characteristics[1]
Mass	6.3+1.6 −0.9 MJ

YSES 2 b is an exoplanet orbiting the star YSES 2 (TYC 8984-2245-1) in the constellation of Musca.^[3] It was discovered through direct imaging by Bohn et al. in 2021. The planet is unusually far from its young host star.^[3]

Its year is 1176.5 Earth years,^[2] and its semi-major axis is 114 AU. Its mass is 6.3+1.6
−0.9 Jupiter masses, its radius is unknown, and its temperature is unknown.

YSES 2, the host star, is a young, Sun-like star. It is approximately 360 ly from Earth in Scorpius-Centaurus Association. Its age is 14 million years.^[4]

References

1. "The Extrasolar Planet Encyclopaedia — YSES 2 b". Extrasolar Planets Encyclopaedia. Retrieved 2021-06-05.
2. "Exoplanet-catalog". Exoplanet Exploration: Planets Beyond our Solar System. Retrieved 2021-06-22.
3. "Astronomers photograph giant exoplanet in unusual large orbit". earthsky.org. 2021-05-11. Retrieved 2021-06-22.
4. "Giant planet at large distance from sun-like star puzzles astronomers - Astronomie.nl". www.astronomie.nl (in Dutch). Retrieved 2021-07-17.