English: An illustration showing the relative sizes, colors, shapes, and albedos of large trans-Neptunian objects with measured diameters of >700 km, as well as their moons. Significant size uncertainties are shown with a dark colored arc, and objects with a lack of color data are represented by a black ellipse with a white outline.

Sources for diameter/dimension measurements include:

• Pluto and Charon - Nimmo et al. (2017)
• Styx, Nix, Kerberos, and Hydra - Weaver et al. (2016)
• Eris - Sicardy et al. (2011)
• Dysnomia - Brown and Butler (2023)
• Haumea - Dunham et al. (2019)
• Namaka (estimated diameter of 150 ±50 km) - Müller et al. (2019)
• Hiʻiaka - Fernández-Valenzuela et al. (2025)
• Makemake - Brown et al. (2013)
• S/2015 (136472) 1 (best-fit diameter of ~179 km) - Kiss et al. (2024)
• Gonggong - Kiss et al. (2019)
• Xiangliu (estimated diameter of ~200 km) - Arakawa et al. (2021)
• Quaoar - Proudfoot et al. (2025b)
• Quaoar's second moon (lower-limit diameter of >30 km and estimate of ~38 km used) - Proudfoot et al. (2025a)
• Weywot - Fernández-Valenzuela et al. (2024)
• Orcus - Brown and Butler (2018)
• Vanth - Brown and Butler (2018)
• Sedna - Lellouch et al. (2013), Rommel et al. (2020)
• Salacia and Actaea - Kiss et al. (2025)
• Máni - Rommel et al. (2023)
• Aya - Vilenius et al. (2014)
• Varda (dimensions for best-fit apparent oblateness of 0.066 ±0.047) - Souami et al. (2020)
• Ilmarë - Kiss et al. (2025)
• Chiminigagua and its moon - Sheppard et al. (2018)
• Achlys (dimensions derived from the unlikely assumption of hydrostatic equilibrium) - Dias-Oliveira et al. (2017)
• Moon of Achlys (estimated diameter of 72 ±12 km) - Johnston's Archive

Sources for color and albedo measurements include calculations using TrueColorTools created by Askaniy that use spectral and geometric albedo data from:

• Pluto - Madden et al. (2018), Helfenstein and Verbiscer (2025)
• Charon - Cook et al. (2018), Helfenstein and Verbiscer (2025)
• Nix and Hydra - Cook et al. (2018) and Weaver et al. (2016)
• Eris - Lorenzi et al. (2016), Helfenstein and Verbiscer (2025)
• Haumea - Pinilla-Alonso et al. (2009), Ortiz et al. (2017)
• Namaka (albedo for a diameter of 150 ±50 km and Hv = ~5.1 used) - Brown et al. (2010), Müller et al. (2019)
• Hiʻiaka - Brown et al. (2010), Fernández-Valenzuela et al. (2025)
• Makemake - Alvarez-Candal et al. (2020), Helfenstein and Verbiscer (2025)
• Gonggong - Boehnhardt et al. (2014), Kiss et al. (2019)
• Xiangliu (albedo for a estimated diameter of ~200 km and Hv = 6.93 ±0.15 used) - Kiss et al. (2019), Arakawa et al. (2021)
• Quaoar (occultation-only fit, preferred by Proudfoot et al. (2025b)) - Barucci et al. (2015), Margoti (2024)
• Orcus - de Bergh et al. (2005), Brown and Butler (2018)
• Vanth - Brown et al. (2010), Brown and Butler (2018)
• Sedna - Barucci et al. (2005), Lellouch et al. (2013)
• Salacia - MBOSS, Kiss et al. (2025)
• Actaea - Stansberry et al. (2012), Kiss et al. (2025)
• Máni - MBOSS, Helfenstein and Verbiscer (2025)
• Aya - Fornasier et al. (2004), Vilenius et al. (2014)
• Varda - Fornasier et al. (2009), Souami et al. (2020)
• Ilmarë - Grundy et al. (2015), Kiss et al. (2025)
• Chiminigagua - Sheppard et al. (2018)
• Achlys - Fornasier et al. (2004), Ortiz et al. (2019)