#quaoar — Public Fediverse posts

Useless Facts, Badly Drawn #423: Quaoar.
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#quaoar #dwarfplanets #astronomy #space #strangebuttrue #weirdplanets #planets #solarsystem #strangenewworlds #pluto #neptune #weywot #funfacts #facts #didyouknow #comics #webcomics #uselessfacts #uselessfactsbadlydrawn

The two #rings of (50000) #Quaoar: https://arxiv.org/abs/2304.09237 - besides secondary events related to already reported rings Q1R, new secondary events detected during a August 2022 #occultation in three different data sets are consistent with another ring around Quaoar with a radius of 2520±20 km, assuming the ring is circular and co-planar with Q1R; this new ring has a typical width of 10 km and a normal optical depth of ∼0.004. Like Q1R, it also lies outside Quaoar's classical Roche limit.

In the arXiv, cool update on (50000) Quaoar the Transneptunian: this dwarf planet, half the size of Pluto, harbors not only a moon, Weywot, but also two rare rings, located outside the Roche limit - where rings usually accrete into satellites.

https://arxiv.org/abs/2304.09237

📷 Illustration of the large transneptunian objects; credit Eurocommuter~commonswiki @ en.wikipedia, fr.wikipedia, pl.wikipedia

#universe #astronomy #astrophysics #solarsystem #planets #quaoar #dwarfplanet #moon #rings #astrodon

"A dwarf planet beyond Neptune has a mysterious ring that astronomers can't explain

The ring is so far from the dwarf planet's surface that its material should have coalesced into a moon. But somehow, it didn't."

https://www.space.com/mysterious-ring-around-dwarf-planet-puzzles-astronomers

#Quaoar

A dense #ring of the trans-Neptunian object #Quaoar outside its #Roche limit: https://www.nature.com/articles/s41586-022-05629-6.epdf?sharing_token=o_4ahBmJuCm9apcVv1vFZdRgN0jAjWel9jnR3ZoTv0M64TyCEs9Z0PCfLpZmcbRGY1kUz7pqM77Qj2vJYIzvnxBLE6ud21WMBKgtY_XTOekQGFkoTACQH5n8PKYRY9rjozMaXREiYEsu2nKFo1SnU6Hzz1oYlhl50-vKgMco_QIfrjRW7O-7EWC1OpEsvIKRjBFAYiK-0bh1Be1PrqDlVaOIhoAL7tbcLmGo5rarfSg%3D&tracking_referrer=science.apa.at -> https://www.esa.int/Science_Exploration/Space_Science/Cheops/ESA_s_Cheops_finds_an_unexpected_ring_around_dwarf_planet_Quaoar and https://www.sheffield.ac.uk/news/new-ring-system-discovered-our-solar-system and https://www.ucf.edu/news/an-unexpected-ring-has-been-discovered-around-quaoar-a-dwarf-planet-candidate/

@MasterNinjaTS

>"Another dwarf planet has a ring? C'mon inner solar system, step up your game already.
#Quaoar"

Perhaps the solar wind and CMEs push away the material that would normally form rings around inner planets. Also, many rings are composed of ice which would not exist nearer the Sun.

The Sun's gravity may also play a factor.

Che figata che è l'universo. Un piccolo asteroide "va contro" una teoria vecchia di anni.

Anche #Quaoar ha gli anelli. Il "piccolo Saturno" sorprende gli scienziati » Scienze Notizie
https://www.scienzenotizie.it/2023/02/09/anche-quaoar-ha-gli-anelli-il-piccolo-saturno-sorprende-gli-scienziati-0865848

Another dwarf planet has a ring? C'mon inner solar system, step up your game already.
#Quaoar