Probable Per Tancredi
Gonzalo Tancredi (2010) presented a report to the IAU evaluating a list of 46 candidates for dwarf-planet status based on light curve amplitude analysis and the assumption that the object is more than 450 km in diameter. Some diameters are measured, some are best-fit estimates, and others use an assumed albedo of 0.10. Of these, he identified 15 as dwarf planets by his criteria, with another nine being considered possible. To be cautious, he advised the IAU to "officially" accept as dwarf planets the top three: Sedna, Orcus, and Quaoar. Although the IAU had anticipated Tancredi's recommendations, as of 2013 they have not responded.
| name | absolute magnitude (H) |
diameter (km) |
likelihood |
|---|---|---|---|
| Eris | −1.1 | 2600 | accepted (measured) |
| Pluto | −0.7 | 2390 | accepted (measured) |
| Makemake | 0 | 1500 | accepted |
| Haumea | 0.5 | 1150 | accepted |
| Sedna | 1.8 | 1600 | accepted (and recommended) |
| Orcus | 2.5 | 946 | accepted (and recommended) |
| Quaoar | 2.6 | 908 | accepted (and recommended) |
| 2002 TX300 | 3.49 | 800* | accepted |
| 2002 AW197 | 3.61 | 735 | accepted |
| 2003 AZ84 | 3.71 | 686 | accepted |
| 28978 Ixion | 3.84 | 650 | accepted |
| 20000 Varuna | 3.99 | 500 | accepted |
| 2004 GV9 | 4.2 | 677 | accepted |
| 38628 Huya | 5.23 | 533 | accepted |
| 1996 TL66 | 5.46 | 575 | accepted |
| 2003 MW12 | 3.6 | 801# | possible |
| 2005 RN43 | 3.9 | 697# | possible |
| 2005 RR43 | 4 | 666* | possible |
| 2003 OP32 | 4.1 | 636* | possible |
| 2001 UR163 | 4.2 | 607# | possible |
| 2004 SB60 | 4.2 | 607# | possible |
| 2005 RM43 | 4.4 | 554# | possible |
| 2004 UX10 | 4.5 | 529# | possible |
| 1999 DE9 | 4.7 | 482 | possible |
Read more about this topic: List Of Dwarf Planet Candidates
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“Thus all probable reasoning is nothing but a species of sensation. ‘Tis not solely in poetry and music, we must follow our taste and sentiment, but likewise in philosophy, When I am convinc’d of any principle, ‘tis only an idea which strikes more strongly upon me. When I give the preference to one set of arguments above another, I do nothing but decide from my feeling concerning the superiority of their influence.”
—David Hume (1711–1776)