Image: Haumea Family Shape Size Color

Description: An illustration showing the relative sizes, colors, shapes, and albedos of the confirmed Haumea family members. Upper limit sizes are shown with a dark colored arc, and objects with a lack of color data are shown with an average color of the family (B-V = ~0.69, V-R = ~0.37, R-I = ~0.35). Confirmed members from: Proudfoot and Ragozzine (2019) and Proudfoot et al. (2024) Sources for diameter/dimension measurements include:

Haumea - Dunham et al. (2019) Hiʻiaka - Fernández-Valenzuela et al. (2025) 2002 TX300 (for a/c = 1.28) - Ortiz et al. (2019) 2005 RR43, 2003 OP32, and 2003 UZ117 - Vilenius et al. (2018) 1995 SM55 - Ortiz et al. (2025) 1996 TO66 (upper limit diameter) - Vilenius et al. (2018) Namaka (estimated diameter of 150 ±50 km) - Müller et al. (2019) 2003 SQ317 (calculated with a/c = ~2.59 derived from the roche-binary model, estimated diameter, and the the formula for the volume of an ellipsoid) - Lacerda et al. (2014) All other members are displayed with estimated diameters, which use an assumed Haumea-like albedo of ~0.7 and their absolute magnitudes (H) from JPL's Small Body Database Sources for color and albedo measurements include calculations using TrueColorTools created by Askaniy that use spectral and geometric albedo data from:

Haumea - Pinilla-Alonso et al. (2009), Ortiz et al. (2017) Hiʻiaka - Brown et al. (2010), Fernández-Valenzuela et al. (2025) 2002 TX300 - Pinilla-Alonso et al. (2007), Ortiz et al. (2019) 2005 RR43 - Alvarez Candal et al. (2008), Vilenius et al. (2018) 2003 OP32 - Fornasier et al. (2009), Vilenius et al. (2018) 2003 UZ117 - Alvarez Candal et al. (2008), Vilenius et al. (2018) 2009 YE7 - Trujillo et al. (2011) 1995 SM55 - Minor Bodies in the Outer Solar System (MBOSS), Ortiz et al. (2025) 2005 CB79 - Snodgrass et al. (2010) 1996 TO66 - Minor Bodies in the Outer Solar System (MBOSS) 2014 HZ199 - Solar system Open Database Network (SsODNet) 2014 QW441 - Solar system Open Database Network (SsODNet) Namaka (albedo for a diameter of 150 ±50 km and Hv = ~5.1 used) - Brown et al. (2010), Müller et al. (2019) 2014 QA442 - Ferreira et al. (2025) 2015 FN345 - Solar system Open Database Network (SsODNet) 2003 SQ317 - Lacerda et al. (2014) 1999 OY3 - Minor Bodies in the Outer Solar System (MBOSS)
Usage Terms: Public domain