The Dwarf Planets
by Mike Brown
Caltech
name
average
distance
from sun
(semimajor
axis, AU)estimated size
(km)2004TY364 38.72 540 2002KX14 39.01 560 2002XV93 39.22 430 2003VS2 39.27 610 1999TC36 39.27 440 2001QF298 39.30 490 Orcus
39.34 1100 2003AZ84 39.45 710 Pluto
39.53
2300
Ixion
39.65 980 Huya
39.76 480 2005RN43 41.53 740 1995SM55 41.64 470 2002MS4 41.90 740 2004SB60 41.97 560 2004GV9 42.23 680 2002UX25 42.53 810 Varuna
42.90 780 2002TX300 43.11 800
1996TO66 43.19 540 2003OP32 43.24 650 2003EL61 43.31 2000
Quaoar
43.58 1290 2003QW90 43.65 560 1999CD158 43.69 410 1997CS29 43.87 410 2000CN105 44.65 430 1998WH24 45.56 450 2005FY9 45.66 1600
2004PR107 45.75 520 2003MW12 45.94 740 2002CY248 46.18 410 2002KW14 47.08 510 2002AW197 47.30 940 2002WC19 47.67 410 2003QX113 49.56 450 2003FY128 49.77 430 2001UR163 51.40 620 2002TC302 55.02 710 1999DE9 55.72 490 2004XR190 57.36 540 2000YW134 57.77 430 Eris
67.69 2400
2005RM43 89.73 560 Sedna
486.0 1800
Xena was an acceptable name, but they went with Eris.
Shouldn’t Ceres be in the list?
37 KBOs as bright as Pluto.