Talk:704 Interamnia

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Latin is equivalent to Greek Mesopotamia. Adj. form in the OED is interamnian (in'-tur-am'-nee-un). kwami 2005 July 6 09:42 (UTC)

Could Interamnia be classified as a dwarf planet??[edit]

In the articles about Pallas, Vesta and Hygiea, it says:

"It is possible that...may be classified as a dwarf planet in the future, if it is proven that its shape is due to hydrostatic equilibrium.".

Is the above statement also true of Interamnia?? In pictures, Interamnia looks actually more nearly spherical than Pallas, Vesta, or Hygiea from the few pictures I have seen relating to it - though of course Interamnia has been much less studied as it was only discovered in 1910. luokehao

Probably not. Its diameter is below 400 km, which makes it unlikely to be in HE. Serendipodous 13:20, 20 October 2008 (UTC)[reply]

As a 350km main-belt asteroid we can be very confident it is not a dwarf planet as it simply will not have enough volatiles to be spherical. Even the notably larger asteroid 4 Vesta is not a dwarf planet. To make such a dubious claim will requires a reliable source. In theory 200km icy objects can be in hydrostatic equilibrium, but a rocky object in the main-belt less than 600km in diameter will not be. -- Kheider (talk) 22:44, 17 August 2015 (UTC)[reply]

I found this:

www.scirp.org/journal/PaperDownload.aspx?paperID=43533[predatory publisher]

It states that Interamnia is a triaxial ellipsoid. And it looks...rounder than both Vesta and Pallas! Well then. This is an interesting turn of events. DN-boards1 (talk) 23:37, 2 October 2015 (UTC)[reply]

All asteroids have "triaxial ellipsoid dimensions". That does not mean they are in HE. -- Kheider (talk) 00:07, 3 October 2015 (UTC)[reply]
Point taken, but Interamnia has escaped the same fate that Vesta, Pallas, Cybele, and Hygiea suffered, so it won't have been disrupted. It should be spherical, in fact, it looks more spherical than those four, as noted by @Luokehao:. DN-boards1 (talk) 00:16, 3 October 2015 (UTC)[reply]
How do you know the impact history of Interamnia? Have you mapped all of the craters? You can not compare the 2D silhouette produced by an asteroid occultation with a resolved image of the disc by a telescope. Again you need to avoid wp:synth. -- Kheider (talk) 16:22, 3 October 2015 (UTC)[reply]
DN-boards1, there seems to be some confusion as to what we do here at Wikipedia. We don't add content on the basis of our (or your) assessment of how something "looks". Never. We only summarize results from reliable sources, and we cite those reliable sources. Otherwise, we don't write it. Please read this: WP:OR. Isambard Kingdom (talk) 00:22, 3 October 2015 (UTC)[reply]
Interamnia is near the theorized lower limit for an icy object to be in hydrostatic equilibrium. Is it possible that it could be in hydrostatic equilibrium? In theory yes, however as of yet I have seen no reliable source which states such.XavierGreen (talk) 15:58, 13 July 2016 (UTC)[reply]
Theorized lower limit? Phoebe is significantly smaller (~213 km in diameter) and used to be round. --JorisvS (talk) 19:56, 13 July 2016 (UTC)[reply]

Hanuš et al. argue that Interamnia probably has escaped giant impacts for the last ~3 Ga (or else it'd have a family like Hygiea), and that it probably formed in HE and is still close to it. Double sharp (talk) 12:37, 26 September 2021 (UTC)[reply]

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New SPHERE image[edit]

Astronomers of the European Southern Observatory have recent published an abstract and arXiv preprint on VLT-SPHERE images of Interamnia, showing that it is a transitional object between irregular bodies and dwarf planets. This image is yet to be announced by the ESO though, so I figured it would be fine to upload it already. Nrco0e (talk · contribs) 05:02, 2 December 2019 (UTC)[reply]

The abstract however also states that "Our observations reveal a shape that can be well approximated by an ellipsoid, and that is compatible with a fluid hydrostatic equilibrium at the 2 σ level. The rather regular shape of Interamnia implies that the size and mass limit, under which the shapes of minor bodies with a high amount of water ice in the subsurface become irregular, has to be searched among smaller (D ≲ 300km) less massive (m ≲ 3x1019 kg) bodies." This seems to state that Interamnia is in actuality in hydro-static equilibrium, which would technically make it a dwarf planet.XavierGreen (talk) 22:27, 3 December 2019 (UTC)[reply]
Here is a link to the full paper, [1]XavierGreen (talk) 22:33, 3 December 2019 (UTC)[reply]
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