Exoplanet is a former featured article. Please see the links under Article milestones below for its original nomination page (for older articles, check the nomination archive) and why it was removed.
This article is within the scope of WikiProject Astronomy, which collaborates on articles related to Astronomy on Wikipedia.AstronomyWikipedia:WikiProject AstronomyTemplate:WikiProject AstronomyAstronomy articles
This article is within the scope of WikiProject Physics, a collaborative effort to improve the coverage of Physics on Wikipedia. If you would like to participate, please visit the project page, where you can join the discussion and see a list of open tasks.PhysicsWikipedia:WikiProject PhysicsTemplate:WikiProject Physicsphysics articles
This article is within the scope of WikiProject Spoken Wikipedia, a collaborative effort to improve the coverage of articles that are spoken on Wikipedia. If you would like to participate, please visit the project page, where you can join the discussion and see a list of open tasks.Spoken WikipediaWikipedia:WikiProject Spoken WikipediaTemplate:WikiProject Spoken WikipediaSpoken Wikipedia articles
Add links perhaps with some discussion to similar articles The Fermi Paradox, The Rare Earth Hypothesis and The Many-body problem
A list of instruments/telescopes used to find exoplanets and an indication of how useful they have been and how many exoplanets they have found perhaps also their operational ranges
Think the article could have a better link to the planetary habitability article. Perhaps a synopsis of that article plus a see main article link.
Discussion of static magnetic fields e.g. Mercury in properties section
A little more about polarimetry--which planet(s) have been studied that way?
Material from Exoplanet was split to other pages. The former page's history now serves to provide attribution for that content in the latter pages, and it must not be deleted so long as the latter pages exist. Please leave this template in place to link the article histories and preserve this attribution.
These bodies cannot be “planets outside the solar system”. We can call them exoplanets, but to refer to them as “planets outside the solar system” makes as much sense as referring to cats as “quadrupedal carnivorous humans that meow and purr”.
It’s just a lain fact that there are no planets outside of the solar system. There cannot be by definition.
Taking this in reverse order:
We do not know if any of these bodies have “cleared their neighbourhoods”. We just don’t. We can’t even begin to see their neighbourhoods. In some cases, though, it’s actually unlikely. Regardless, if we can’t show they have, then they haven’t.
We don’t actually know what shape they are. I mean sure, it’s very likely that they’re within the boundaries of the IAU’s oh so scientific definition of “pretty round, eh”. But we don’t KNOW. We cannot prove it. One of these exoplanets might be a big cube like Htrae, the Bizarro World. Is it likely? Certainly not. Is it physically possible? We don’t know. So yeah, they probably mostly fit this description, but we don’t know. But even guessing, some of them orbit so close to their stars that they’re probably more egg-shaped.
Finally, the stopper that covers all other exceptions: Nothing outside the solar system orbits the sun. Else it would be IN the solar system.
The IAU itself defines exoplanets as planets beyond the solar system, see here. The definition you saw is only for objects within the solar system. It is meant to distinguish planets from smaller things, not things in and out the solar system. Cambalachero (talk) 15:12, 7 January 2023 (UTC)[reply]
There are eleven entries in the "External links". Three seems to be an acceptable number and of course, everyone has their favorite to add for four. The problem is that none is needed for article promotion.
ELpoints #3) states: Links in the "External links" section should be kept to a minimum. A lack of external links or a small number of external links is not a reason to add external links.
LINKFARM states: There is nothing wrong with adding one or more useful content-relevant links to the external links section of an article; however, excessive lists can dwarf articles and detract from the purpose of Wikipedia. On articles about topics with many fansites, for example, including a link to one major fansite may be appropriate.
I've readded it to the article but I've edited it, moved it to the HZ section and added an explanation about UV rays as to why low metallicity stars are better.Fdfexoex (talk) 13:56, 4 May 2023 (UTC)[reply]
Now have a 7026 confirmed exoplanets in 4949 systems and 1007 of them is multiplanetary. Suggestind to remove template and manually set new numbers. Or set template for weekly renewing. The month cycle is too long. ГеоргиУики (talk) 05:58, 24 July 2024 (UTC)[reply]
If I remember correctly, DrB only updated it monthly because the numbers don't change that much from month-to-month, and spamming the updates didn't make much sense. That being said, I dropped it off my watchlist a while ago so I'm not particularly fussed if someone wants to update more frequently. Primefac (talk) 00:17, 25 July 2024 (UTC)[reply]
I disagree. We aren't putting a database worth of information on the site, we are providing (relatively) up-to-date information about the number of exoplanets that have been discovered. This information is useful in multiple articles across Wikipedia, which is why a template is a good idea for it; updating one template means the information is updated everywhere. Primefac (talk) 00:17, 25 July 2024 (UTC)[reply]
And not updating it means it's wrong everywhere. The very concept of "up to date" is the flaw. We should be focusing on the concepts of exoplanets and their discovery, not counting 4948, 4949, 4950, ... That's not what we are good at, as evidenced by this topic. Johnjbarton (talk) 00:42, 25 July 2024 (UTC)[reply]
There is a date coded in to indicate how recent the data is. Again, this information is used in over 40 places on Wikipedia; updating once a month is not a burden, nor is it counting hyperbolically. Even if the information is a month or two out of date, that's better than having 20 places across the project with 20 different dates and values, half of which will likely be wrong because of vandalism anyway. Primefac (talk) 01:15, 25 July 2024 (UTC)[reply]
Example that you is wrong. Here the date of changing is 15th of month and number of exoplanets is different than main article of exoplanets. ГеоргиУики (talk) 04:45, 25 July 2024 (UTC)[reply]
That page uses a different form of the template. It uses numbers from NASA exoplanet archive which are different. This makes me think the use of this template should be scrapped and replaced with simple text such as: "Several thousand exoplanets have been discovered" as the exact number is not important. Fdfexoex (talk) 06:44, 25 July 2024 (UTC)[reply]
We now have the opposite problem to the one I mentioned before - instead of being too small, EPE's count is too large! This is due to EPE's much broader inclusion criteria that I mentioned; it includes basically every substellar object with a mass up to 60 Jupiter masses. The recent large increase in its planet count, passing 6,000 and then 7,000, is mainly due to the addition of large numbers of brown dwarfs, mostly discovered years ago. NEA still provides a more reasonable count of actual exoplanets. SevenSpheres (talk) 19:29, 25 July 2024 (UTC)[reply]