Mar 28, 2025 · HD 100546 b is a gas giant exoplanet that orbits a B-type star. Its mass is 8.5 Jupiters, it takes 249.2 years to complete one orbit of its star, and is 53 AU from its star. Its discovery was announced in 2014.

Despite the uncertainty of the planet's properties, a 2017 study calculated HD 100546 b as a very highly reddened substellar object with a good-fit effective temperature of 2,630 K and a planetary mass and radius of 25 M Jup and 3.4 R Jup, making it still one of the largest exoplanets discovered by size.

Jul 1, 2015 · We now confirm that this object is bound to the central star and that its multi-band photometry is best explained as a newly forming gas giant planet embedded in the circumstellar disk around the young star HD 100546. HD 100546 has a spectral type of B9Vne (Levenhagen & Leister 2006) and lies at a distance of 97 ± 4 pc (van Leeuwen 2007).

Exoplanet HD 100546 b orbits star HD 100546 that lies 359 light years away from the Sun. It weighs about 985.5 Earth masses and orbits its star further than Earth orbits Sun.

HD 100546b is a unique laboratory to study the formation process of a new planetary system, with one giant planet currently forming in the disk and a second planet possibly oribitin in the disk gap at a smaller separation. This table lists all stars in the system HD 100546.

Dec 30, 2023 · Located 353 light-years away in the southern constellation of Musca, this pre-main sequence star of spectral type B8 to A0 has captivated astronomers with its fascinating planetary system, featuring a protoplanet known as HD 100546 b.

Considering the suspected existence of an additional planet orbiting at ∼13-14 AU, HD 100546 appears to be an unprecedented laboratory to study the formation of multiple gas giant planets empirically.

Dec 12, 2017 · HD 100546 is a young, early-type star and key laboratory for studying gas giant planet formation. Using the Gemini Planet Imager, Currie et al. (2015) reported the near-infrared (IR) detection of the thermal IR-discovered protoplanet HD 100546 b (Quanz et al. 2013), arguing that its colors may reveal circumplanetary material.

HD 100546 appears to be an unprecedented laboratory to study the formation of multiple gas giant planets empirically. Key words: planet–disk interactions – planets and satellites: detection – planets and satellites: formation – planets

Detailed information about planet HD 100546 b and its parameters. Very large radius estimate likely due to the presence of an extended circumplanetary disk or diffuse dust and gas envelope surrounding the planet. Sissa (2017) provide a greater planetary mass (m = 25 M Jup) and higher temperature (T = 2,630 K) for HD 100546 b.