Modify Concept: Dwarf planets

[klyastra]

Concept: Dwarf planets (419)

The end of this entry's definition reads: "The largest known dwarf planets are: Eris, Pluto, Ceres, Makemake, and 2015 RR245."
Why is 2015 RR245 listed as one of the largest dwarf planets? For consistency with the official list by the IAU, MPC, and NASA, I suggest replacing 2015 RR245 with Haumea.

[BartlettAstro]

Concept: Dwarf planets (https://astrothesaurus.org/uat/419)

Broader Concept: Solar system

Narrower Concepts:
Pluto
Ceres

Related Concepts: ADD
Small Solar System bodies
Asteroid belt
Asteroids
Kuiper belt
Trans-Neptunian objects
Plutoids
Oort cloud
Oort cloud objects

Alternate Terms:
Solar system dwarf planets
Dwarf planets (Solar system)

Definition: Existing
A new category of astronomical objects in the solar system introduced in a resolution by the 26th General Assembly of the International Astronomical Union (IAU) on August 24, 2006. The characterizing properties are as follows: 1) It is in orbit around the Sun; 2) It has sufficient mass for its self-gravity to overcome rigid body forces so that it assumes a hydrostatic equilibrium (nearly round) shape; 3) It has not 'cleared the neighbourhood' around its orbit; and 4) It is not a satellite of a planet, or other non-stellar body. The property 3 reclassified Pluto from a planet to a dwarf planet because it has not cleared the neighborhood of its orbit (the Kuiper Belt). The largest known dwarf planets are: Eris, Pluto, Ceres, Makemake, and 2015 RR245.
- An Etymological Dictionary of Astronomy and Astrophysics, by M. Heydari-Malayeri

Definition: Replacement
A "dwarf planet" is a celestial body that (a) is in orbit around the Sun, (b) has sufficient mass for its self-gravity to overcome rigid body forces so that it assumes a hydrostatic equilibrium (nearly round) shape, (c) has not cleared the neighborhood around its orbit, and (d) is not a satellite of another substellar body.

• adapted from IAU 2006 Resolution 5A

Ref: (https://iauarchive.eso.org/news/pressreleases/detail/iau0603/)

Examples: Modified
['Eris', 'Pluto','Ceres','Makemake', 'Haumea,']

[BartlettAstro]

@klyastra would this be acceptable?

@danielchivvis we should eventually address whether individual Solar System objects should be included but in the meantime this would at least be cleaner.

[klyastra]

Yes, that's straightforward, thank you.