List of exoplanets and planetary debris around giant stars

This is a list of notable confirmed exoplanets and planetary debris disks around giant stars, mainly sorted by distance to the Sun.

Characteristics of exoplanets around giant stars Exoplanets orbiting giant stars usually have the following attributes: Have orbital period larger than 150 days. Orbit metal-poor stars (which are stars with lower content of heavier elements than hydrogen and helium than the Sun). Are gas giants or super-Jupiters, with masses in range from 3 to 10 Jupiter masses.

Table Confirmed

CompanionSpectral type of host starMass of host star (Solar mass)Radius of host star (Solar radius)Mass of planet (Jupiter mass)Radius of planet (Jupiter radius)Orbital period of planet (day)Eccentricity of planetDistance (light-year)Discovery method of companionDiscovery year of companionReferences and notesGamma Cephei Ab (Tadmor) 1.27 4.74 6.6 – 903.3 0.049 44.98 Radial vel. 1988 / 2003 The first suspected planet to be discovered around a giant star and first evidence for an exoplanet to receive later confirmation in general Hamal b 1.50 15.19 ≥1.8 – 380.8 0.25 65.8 Radial vel. 2011 Brightest exoplanet host star as viewed from Earth Iota Draconis b (Hypatia) rowspan="2" 1.56 11.99 16.4 – 510.8 0.70 101.2 Radial vel. 2002 The first confirmed planet or brown dwarf to be discovered around a giant star Iota Draconis c 17.0 – 24800 (approximate) 0.46 2021 Might be a brown dwarf Mu Leonis b 1.5 11.89 2.4–12.6 – 357.8 0.09 124.1 Radial vel. 2014 Nu Ophiuchi b rowspan="2" 2.88 13.85 24.2 – 529.5 0.12 151 Radial vel. 2003 Their masses are above the deuterium burning limit, so might be brown dwarfs, but also consistent with planetary formation in 6:1 orbital resonance Nu Ophiuchi c 26.8 – 3173 0.18 2012 18 Delphini b (Arion) 2.35 7.19 ≥9.21 – 982.8 0.02 245 Radial vel. 2008 Omega Serpentis b 1.20 10.48 ≥0.74 – 278.6 0.18 273 Radial vel. 2013 24 Boötis b 1.46 10.04 ≥0.91 – 30.35 0.04 308 Radial vel. 2018 HD 139357 b 1.1–2.16 11.47 ≥9.76 – 1126 0.10 370 Radial vel. 2009 HD 47536 b 0.94 23.08 ≥4.0 – 434.9 0.30 408 Radial vel. 2003 The host star is metal-poor Debris disk of 51 Ophiuchi 3.30 8.08 – – – – 410 Interferometry imaging 2009 8 Ursae Minoris b (Halla) 1.51 10.73 ≥1.65 – 93.31 0.06 532 Radial vel. 2015 The planet might have survived the expansion of its host star HD 76920 b 1.22 8.68 ≥3.57 – 415.9 0.88 597 Radial vel. 2017 Exoplanet with the most eccentric orbit around a giant star HD 220074 b 1.2 59.6 ≥11.1 – 672.1 0.14 1070 Radial vel. 2012 The first planet to be discovered around an M-type giant star HD 13189 b 1.2 38.0 ≥14 – 471.6 0.28 1590 Radial vel. 2005 Might be a brown dwarf Kepler-56b ? (RGB) 1.29 4.18 0.07 0.32 10.503 – 3030 Transit 2012 The orbits of Kepler-56 b and c are coplanar but misaligned 45° to the host star's equator Kepler-56c 0.57 0.70 21.405 – Kepler-56d ≥5.61 – 1002 0.20 Radial vel. 2016 Kepler-91b 1.19 6.20 0.81 1.37 6.246 0.07 4385 Transit + Ellipsoidal variation 2013

Unconfirmed, disputed and refuted exoplanets around giant stars

List of exoplanets and planetary debris around giant stars

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