Talk:List of largest exoplanets

	This article is within the scope of WikiProject Lists, an attempt to structure and organize all list pages on Wikipedia. If you wish to help, please visit the project page, where you can join the project and/or contribute to the discussion.ListsWikipedia:WikiProject ListsTemplate:WikiProject ListsList articles
???	This article has not yet received a rating on the project's importance scale.

Astronomy: Astronomical objects Low‑importance

	Astronomy portal This article is within the scope of WikiProject Astronomy, which collaborates on articles related to Astronomy on Wikipedia.AstronomyWikipedia:WikiProject AstronomyTemplate:WikiProject AstronomyAstronomy articles
Low	This article has been rated as Low-importance on the project's importance scale.
	This article is supported by WikiProject Astronomical objects, which collaborates on articles related to astronomical objects.

Ranking[edit]

The ranking makes no sense, the ranks listed here only concern the entries list here, and not the ranking of all known planets. Therefore I am removing ranking -- 67.70.35.44 (talk) 07:59, 7 November 2014 (UTC)[reply]

HD 100546 b[edit]

This radius is almost certainly wrong; the object seems to be surrounded by a protoplanetary disk. I cannot find any original source for this radius in the papers. There's no way it has a radius more than 6x that of Jupiter. This may be a typo of its semi-major axis. Removing pending someone finding a better source. Titanium Dragon (talk) 00:57, 26 February 2017 (UTC)[reply]

There is a rediable source which mentions the radius of HD 100546 (6.9 R_J). see: Confirmation and characterization of the protoplanet HD100546 b - Direct evidence for gas giant planet formation at 50 au. Ynoss ^(talk) 18:45, 22 May 2017 (UTC)[reply]

Actually, HD 100546 b might actually be a brown dwarf. According to planetary evolution and physics models, there is no planet with a diameter of 350,000 km or more. Thus ROXs 42 Bb, GQ Lupi b and HD 100546 b might actually be brown dwarfs. Thus it would be improper to say that they are the biggest planets, and CT Cha b (316 000 km) will get the record for now. --Joey P. - THE OFFICIAL (talk) 03:35, 14 July 2017 (UTC)[reply]

No. HD 100546 b, ROXs 42Bb and GQ Lupi b are planets because they are not massive enough. To be brown dwarfs, they must have a mass greater than 30 solar mass.Thank you— Ynoss du 44 Pro ★ ✉ / _CONTRIBS 05:58, 14 July 2017 (UTC)[reply]

im going to add hd 100546 b into this so people can think the radius is right 2600:1700:82B0:7480:3D45:583F:9438:96B7 (talk) 00:43, 18 August 2023 (UTC)[reply]

GQ Lup b[edit]

In the paper sourcing its radius, this "planet" is estimated as having a mass of ~20 M_J, which would make it a brown dwarf, not a planet, and the paper notes that it is probably a brown dwarf but that they cannot rule out that it might be smaller. Removing it for now; feel free to argue with me if you've got a good reason why this should be here. Titanium Dragon (talk) 01:15, 26 February 2017 (UTC)[reply]

List of most massive exoplanets say that the most massive exoplanet is DENIS-P J082303.1-491201 b with a mass 28.5 M_J so the maximum mass of a planet is 30 M_J. Ynoss ^(talk) 18:55, 22 May 2017 (UTC)[reply]

Radii[edit]

Please reconsider the given radii. An old planet cannot have a radius of 3 - 4 times Jupiter's. Please see http://beyondearthlyskies.blogspot.fr/2015/07/classifying-planets-brown-dwarfs-stars.html figure 3. There is a reason why e.g. for HD 87883 b neither exoplanet.eu http://exoplanet.eu/catalog/hd_87883_b/ nor NASA exoplanet archive https://exoplanetarchive.ipac.caltech.edu/cgi-bin/DisplayOverview/nph-DisplayOverview?objname=HD+87883+b&type=CONFIRMED_PLANET give a radius, since RV planets only have a radius determined if a transit is observed, which I assume is not the case here. Directly imaged planets can have a radius, coming from luminosity / age / temperature. Very young planets still contract, thus are larger. — Preceding unsigned comment added by Exowrite (talk • contribs) 13:23, 23 November 2017 (UTC)[reply]

@Exowrite: I think this source http://www.exoplanetkyoto.org/exohtml/A_All_Exoplanets.html is somewhere unreliable. Well, what I will do is remove all the planets mentioned in this source and add more planets that have radii larger than 1.7 R_J. ZaperaWiki44^{(✉/Contribs)} 08:33, 25 January 2018 (UTC)[reply]

Pictures, or no Pictures ?[edit]

I see that a particular IP address user does not want to have pictures in this list.

I see no reason for those planets not to be there.

1.) They aren't hurting anyone, and they aren't doing anything wrong staying there, are they?

And 2.) So what if it's a list, nobody said that pictures can't stay on a list. There is no law preventing pictures staying there. As far as I can see, you are just removing them because you don't like them.

Please clarify,

PNSMurthy (talk) 01:18, 20 July 2020 (UTC)[reply]

I want those images to Stay . I am undoing the edit. The descriptions likely stand no justice to the image. For HD 100546b, It says there is a disk around the planet, and the image shows that. --THE COLOSSAL GALAXY NAMED IC1101 (talk) 11:29, 21 July 2020 (UTC)[reply]

Indeed. There's no reason for them to go, so, why don't they stay?PNSMurthy (talk) 00:24, 23 July 2020 (UTC)[reply]

They SHOULD Stay. Scientific data and real pictures of exoplanets are basically a bit of blobby like appearance. Kind of ugly , right? So we want a better image, and that’s where the artist images are here for. Again, HD 100546b for example, The real image when you look at it you can’t see the planet and disk but using the artist’s impression, we can visualize an impression of the planet and disk. Also see the red orange and yellow color of HD 100546b means it is hot. Using Artist images, At least we are able to visualize a guess of how the planets look like. THE COLOSSAL GALAXY NAMED IC1101 (talk) 03:46, 23 July 2020 (UTC)[reply]

The problem is that they don't have really much use for the list and many are already used respectively in exoplanets' linked articles, despite replies here since there is no really much proper explanation. Some instead just show also the location of the objects within a planetary system, in which it feel as well useless for the list too. And what is even worse (aside from impressions just made-up by users as for WASP-76b), few used in the list are just a comparison with Jupiter by radius while using the exoplanet as the white sphere.

Speaking of HD 100546 b, it was honestly more reasonable to just remove it from the list (and it is already), the quoted radius was never meant to a single planatary radius but instead of the emitting area anyways. NASA Exoplanet Archive also is not as reliable as scientific papers (and also never stated HD 100546 b as the "largest exoplanet" despite being at the top of the list by radius), and has some strange and nonsensical results that are likely made-up, such as 752 M_J when one of the most recent researches placed a much lower upper limit of 1.65 M_J. Moreover the surrounding disk is also much larger with a radius up to 0.44 AU based on the same said study. Regards—ZaperaWiki44^{(✉/Contribs)} 01:18, 7 October 2023 (UTC)[reply]

A Commons file used on this page or its Wikidata item has been nominated for deletion[edit]

The following Wikimedia Commons file used on this page or its Wikidata item has been nominated for deletion:

Kepler-39 b.jpg

Participate in the deletion discussion at the nomination page. —Community Tech bot (talk) 17:09, 31 March 2021 (UTC)[reply]

Tell[edit]

Largest planet 223.235.189.226 (talk) 03:14, 29 March 2022 (UTC)[reply]

Remove HD 100546 b[edit]

This is the radius of the emitting area, not the radius of the actual planet and this is explicity mentioned in the source. Faren29 (talk) 16:03, 12 June 2022 (UTC)[reply]

HOW COME 2600:1700:82B0:7480:3D45:583F:9438:96B7 (talk) 00:41, 18 August 2023 (UTC)[reply]

HD 100546 b disputed[edit]

New analysis showed that signals from what appeared to be HD 100546 b were from a more diffuse structure.

The visible part of the source may not have been part of such planet itself, but the disturbance in disk caused by what appears to be a much smaller and further body (c) completely embedded in the dust shroud.

The 3rd candidate is not confirmed and seems obvious from the recent analysis of the previous disputations.[1] Eric Nelson27 (talk) 21:03, 11 June 2023 (UTC)[reply]

TYC 8998-760-1 b's status[edit]

TY 8998-760-1 is around 14 x the mass of Jupiter, with a margin of error of +/- 3 Jupiter masses, meaning there's a high chance it's a brown dwarf rather than a true planet.

To call it a planet may not always be truthful because the average mass is 14 Jupiters and it takes at least 13 Jupiters in mass for it to qualify as a brown dwarf.

TYC 8998-760-1 b is most likely a brown dwarf due to its mass. Eric Nelson27 (talk) 21:40, 16 June 2023 (UTC)[reply]

Rewriting the list[edit]

Hello. I wanted to let you know that I have made a workpage (or sandbox) to rewrite the list in order to make it better organized given this list is an overall mess.

See also the #Pictures, or no Pictures ? subject regarding the files used in the table, and why I disgreed from the beginning. Regards—ZaperaWiki44^{(✉/Contribs)} 16:41, 4 October 2023 (UTC)[reply]

RIK 72 b[edit]

i found this source [1901.05532] Age Determination in Upper Scorpius with Eclipsing Binaries (arxiv.org) saying RIK 72 b is around 3.10 Rj, is this reliable? ADudeWhoLikesAstronomy65141 (talk) 10:43, 29 January 2024 (UTC)[reply]

This source is likely reliable, however, this object could not be on the list because its mass (59.2±6.8 M_J) makes it obviously a brown dwarf. InTheAstronomy32 (talk) 16:31, 29 January 2024 (UTC)[reply]

Disputed bodies vs candidate bodies[edit]

The body HD 100546 b was added to the page again, and since it's disputed, I had to correct the page.

There are 2 candidate bodies, but none of them are named b, c, or d, and they have no radii estimated (yet they're not confirmed nor disputed at the time of this topic).

b, c, and d on the other hand are disputed.

Therefore, there are no known planetary-sized or substellar bodies orbiting HD 100546.

Anyone on here should be reminded not to add disputed objects on the page because that's evidence they don't exist. Eric Nelson27 (talk) 19:00, 2 April 2024 (UTC)[reply]