AB Aurigae b

AB Aurigae b
	Subaru Telescope detection of AB Aur b.
Discovery
Discovered by	Currie et al.
Discovery site	Subaru Telescope, Hubble Space Telescope
Discovery date	April 4, 2022
Detection method	Direct imaging
Orbital characteristics
Semi-major axis	44.6–143.2AU
Eccentricity	0.19–0.60
Inclination	27.1–58.2
Physical characteristics
Mean radius	2.75 RJ
Mass	9–12, < 130 MJ
Temperature	2,000–2,500 K

AB Aurigae b (or AB Aur b) ^[1] is a directly imaged protoplanet or brown dwarf embedded within the protoplanetary disk of the young, Herbig AeBe star AB Aurigae. The system is about 508 light-years away: AB Aur b is located at a projected separation of about 93 AU from its host star. AB Aur b is the first confirmed directly imaged exoplanet still embedded in the natal gas and dust from which planets form. It may also provide evidence for the formation of gas giant planets by disk instability.

^ ^a ^b ^c ^d ^e ^f ^g ^h Cite error: The named reference Currie2022 was invoked but never defined (see the help page).

[Currie2022-1] ^ ^a ^b ^c ^d ^e ^f ^g ^h Cite error: The named reference Currie2022 was invoked but never defined (see the help page).

[1]

Discovery
Subaru Telescope detection of AB Aur b.
Discovered by	Currie et al.^[1]
Discovery site	Subaru Telescope, Hubble Space Telescope
Discovery date	April 4, 2022
Detection method	Direct imaging
Orbital characteristics
Semi-major axis	44.6–143.2^[1]AU
Eccentricity	0.19–0.60^[1]
Inclination	27.1–58.2^[1]
Physical characteristics
Mean radius	2.75^[1] `R`_J
Mass	9–12, < 130^[1] `M`_J
Temperature	2,000–2,500 K^[1]