Sulfurous Cloud Giants are Water Cloud Giants that may be hot enough for sulfurous compounds to stain the water clouds a yellowish color. This is a list of systems containing Sulfurous Cloud Jovians (or Jupiter Twins) as identified on Extrasolar Visions. For an updated list, see Sulfurous Cloud Giants.
Sulfurous Cloud Giants
Errai System - Primary star also known as Gamma Cephei. It is the first close in binary star found to have a planet. May contain the nearest "Sulfurous Cloud Giant" planet.
94 Ceti System - A yellow water cloud jovian around a hot yellow dwarf star.
HD 37124 System - The fourth triple planet system discovered around a normal star, the last one announced with 4 other multiplanet components in 2005. A Sunlike star with Jovian planets that received Venus-like, Mars-like, and Asteroid Belt-like radition from their stars. Simulations showed that no terrestrial planets could form between the Venus-like and Mars-like Jovian planets.
HD 80606 System - Multiple star system with a planet, which has a higher period (111 days) than any other known transiting planet and highest eccentricty (Halley's comet-like). Discovered in 2001, but found to transit in 2009. Its orbit brings it from epistellar distances to Earth-like distances. Planet is the first one for which changes in weather have been observed. Potassium was detected from the high wind regions of the exosphere. In 2010 it was found to be only one of the two out of all 79 known transiting exoplanetary systems that could not support a habitable Earth-like planet, since its elongated orbit would destabilize any such planets.
HD 82943 System - Yellow dwarf with two large orbit-crossing Jovians locked in 1:2 orbital resonance that would span the inner solar system, which were disccovered by the Swiss team by 2001. The planets have nearly identical mass (1.8 MJ). Shown to have a dust disk by Spitzer.
23 Librae System - Near naked-eye star containing two planets, also known as HD 134987. The first is an eccentric giant at Venus-like distances and one of the first exoplanets discovered (1999). The second is a Jupiter analog (a = 5.8 AU, q = 5.3 AU, Q = 6.3 AU, e = 0.12, P = 14 EY, m = 0.8 MJ) discovered ten years later, indicating that enough time has passed to detect Jupiter-like planets.