Template talk:Dwarf planets

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Oort[edit]

Including Sedna in the Oort cloud is speculation and should not be enshrined as accepted classification. kwami 02:40, 2005 August 2 (UTC)

Removed the mention of Oort cloud (again). This template is used with {{MinorPlanets_Footer}}, so even the link is not needed.--Jyril 23:22, August 3, 2005 (UTC)

Triton[edit]

Since when is Triton trans-Neptunian? Ken Arromdee 15:46, 23 September 2005 (UTC)

Not since it was captured. Removed. --Jyril 16:25, 23 September 2005 (UTC)

2002 UX25[edit]

I created an article for (55637) 2002 UX25, it's just a stub for now. I couldn't find any more information, but it has the orbital elements. shaggy 01:22, 20 December 2005 (UTC)

Kuiper belt categorization[edit]

Not to be overposessive of a template I created or anything, but I think a simple KB/SD bifurcation makes more sense in the template. For one, we don't have to mix multiple levels of taxon—spatial-region-a and spatial-region-b is a simple divide, while spatial-region-a-objects, spatial-region-b-objects-with-orbital-characteristics-x and spatial-region-b-objects-with-orbital-characteristics-y is needlessly muddled. Secondly, the KB/SD split preserves the convention of going innermost to outermost, as no KBO is closer to the sun than any SDO (short-term orbital overlaps aside), while cubewanos and plutinos have a hopelessly intermingled neighborhood with no one set clearly closer or farther from the sun (plutinos are, on average, closer, for what it's worth). Finally, there are no shortage of orbital-characteristic-based categorizations that could be applied, despite the fact the template gives the impression there are only three. SDOs, for instance, can be subdivided between those in resonant and non-resonant orbits (2003 UB313 being in 17:5 or something bizarre like that), while KBOs have been found in all manner of odd resonances other than just 3:2 (plutino) and nonresonant (cubewano). -The Tom 15:54, 2 October 2005 (UTC)

Interesting[edit]

There's an interesting alternate list here. By their estimation 2002 UX25 should be off and 1996 TL66 and Huya should be on. --Patteroast 23:57, 9 July 2007 (UTC)

I added the non-haumeids from Tancredi's list. The haumeids (known or probable) on his list are (55636) 2002 TX300, 2005 RR43, and 2002 OP32: these are probably a lot smaller than the values he uses. (He gives 2002 TX300 as having a diameter of 800 km, when more recent occultation data gives one of only 286 km.) Double sharp (talk) 13:54, 1 June 2014 (UTC)

Requested move[edit]

I want to move this template to "Template:Plutoids" because it is more concise. In addition, I do not understand why User:Ckatz revert my move... UU (talk) 08:53, 13 May 2009 (UTC)

sections[edit]

Combined the two KB sections and the two SD sections. Also changed the wording "candidates" to "likely": they either are DPs or they are not. They are not candidates that will become DPs if recognized. — kwami (talk) 20:44, 23 December 2012 (UTC)

As Ruslik0 said in his edit summary, "no reason to single out these three bodies". (Though there is consensus that the IAU five should be separated to some extent.) — kwami (talk) 22:15, 25 December 2012 (UTC)

Okay, I think that's acceptable. It's weird to call them "candidates", since it's not like they become DPs after being evaluated, but that's the wording we use in other articles, so if we change it we should change it everywhere. — kwami (talk) 19:58, 26 December 2012 (UTC)

Former DPs[edit]

We now have Vesta as a possible former DP. Actually, it's quite clear that it once as a DP, so I don't think we need the question mark. That would be better suited to Psyche and Eunomia, both of which show evidence of differentiation. If we're going to add Vesta, shouldn't we add all known or suspected former DPs in the asteroid belt? What about Phoebe? Triton? — kwami (talk) 20:43, 9 March 2015 (UTC)

Triton was once a DP, but no longer because it was captured by Neptune, but has remained physically intact. Phoebe is different because it was both captured and disrupted. I'm not against including these, but it makes sense to think about how to best do this, keeping this template reasonably compact. --JorisvS (talk) 09:17, 10 March 2015 (UTC)
What about this: --JorisvS (talk) 17:44, 10 March 2015 (UTC)

Gotta go, but I don't think "disrupted out of equilibrium" is right. They froze out of equilibrium and because of that couldn't recover from subsequent battering.

Also, the list (not your version) is getting ridiculous. The list of "possible" DPs (as in anything that could possibly be 200 km in diameter) would be pages long. — kwami (talk) 23:54, 28 August 2015 (UTC)

The revision was changed just to make it more streamlined. The overall content is mostly the same, but the Kuiper belt category was split into the cubewanos, twotinos, plutinos, and other resonant objects. I decided to keep the possible asteroids to four: Pallas, Hygiea, Eunomia, and Psyche.

All either have an ellipsoidal shape (Pallas, Eunomia, Psyche) or an unknown shape (Hygiea) and are also above 200km. They are the only ones that meet both criteria, hence why I seeked to include them. Changing it to "frozen out of equilibrium" would be a good change. DN-boards1 (talk) 00:03, 29 August 2015 (UTC)

No, they're not ellipsoidal. And the 200km only applies to icy bodies, and even then it's optimistic, given that Proteus is over 400km and not round. No-one thinks that a chunk of iron 300km across (Psyche) is in HE.
Eunomia is the largest fragment of an asteroid that may be a former DP. Maybe Eunomia family could go in the 'former' category. And Psyche is presumably the core of a former DP. But I'd like to see a ref.
Pallas and Hygiea are out-of-round. No-one but you is proposing that they might be DPs. Get published in a RS and we can cite you, otherwise this is unsupported OR. — kwami (talk) 01:49, 29 August 2015 (UTC)