@nazokiyoubinbou @wonderofscience

Of course the question is now why Pluto and Ceres were included in @Physicsj 's graphic and Eris and Sedna were not. (-:

The answer is, according to an old post, that Eris and Sedna had not yet been mapped.

https://mastodon.online/@Physicsj/109337574807973796

#astronomy #DwarfPlanets #UniversityOfReading #Eris #Sedna

Dr James O'Donoghue (@[email protected])

Attached: 1 video The planets to scale in every way... plus dwarf planets Ceres and Pluto, the only two mapped dwarf planets. The material from which all planets grew was orbiting the Sun. When growing planets attract this material, they get larger but also faster, as they also take on the material's momentum. That's why large planets like Jupiter are generally faster!

Mastodon

A fictional Grand Tour portrays Pluto as it really is
NASA's New Horizons mission to Pluto has forced astronomers to rewrite their textbooks — but that's not all: New Horizons also forced Les Johnson to rewrite a novel.

The space scientist was tasked with taking notes that the famed science-f
https://cosmiclog.com/2025/10/31/a-fictional-grand-tour-portrays-pluto-as-it-really-is/
#FictionScienceClub #Books #Charon #DwarfPlanets #FictionScience #NewHorizons #Pluto #ScienceFiction #Space

A fictional Grand Tour portrays Pluto as it really is

NASA’s New Horizons mission to Pluto has forced astronomers to rewrite their textbooks — but that’s not all: New Horizons also forced Les Johnson to rewrite a novel. The space scientist…

Cosmic Log
NASA’s Hubble Sees White Dwarf Eating Piece of Pluto-Like Object

Hubble caught a feast in action. A dense, nearby white dwarf star is snacking on a fragment of an icy Pluto-like object.

NASA Science

NSF–DOE Vera C. Rubin Observatory Launches Orbitviewer App

New 3D, interactive visualization of planets and minor planets in our Solar System lets you explore Rubin discoveries in real time.

☑️ https://noirlab.edu/public/announcements/ann25014/
☑️ https://orbitviewer.app/

#Rubin #RubinObservatory #RubinFirstLook #visualization #planets #solarsystem #dwarfplanets #NearEarthObjects #NEO #NEOs #asteroids #MainBeltAsteroids #MainBelt #Centaurs #Trojans #TNOs #TransNeptunianObjects #Astronomy #Astrodon #science #news

NSF–DOE Vera C. Rubin Observatory Launches Orbitviewer App - New 3D, interactive visualization of planets and minor planets in our Solar System lets you explore Rubin discoveries in real time

NSF–DOE Vera C. Rubin Observatory Launches Orbitviewer App

www.noirlab.edu
Instead of Hot Lava, These Cosmic Volcanoes Spew Ice

The dwarf planet Ceres is studded with cryovolcanoes.

Atlas Obscura

A cousin for Pluto? New dwarf planet candidate found
Astrophysicists say they've identified an object beyond the orbit of Neptune that's likely to qualify as a dwarf planet, alongside other trans-Neptunian objects including Pluto, the erstwhile "ninth planet."

The discovery of 2017 OF201 touches upon another ninth-planet contr
https://cosmiclog.com/2025/05/22/a-cousin-for-pluto-new-dwarf-planet-candidate-found/
#CosmicSpace #Astronomy #DwarfPlanets #PlanetNine #PlanetX #planets #Space

A cousin for Pluto? New dwarf planet candidate found

Astrophysicists say they’ve identified an object beyond the orbit of Neptune that’s likely to qualify as a dwarf planet, alongside other trans-Neptunian objects including Pluto, the ers…

Cosmic Log