Talk:Kepler-438b

Creating talk page for the Kepler-438b article - Enjoy! :) Drbogdan (talk) 17:24, 7 January 2015 (UTC)

"Most Earthlike to date"--outdated?
This page may need to be updated to reflect NASA's announcement 23 July 2015 regarding Kepler-452b (https://en.wikipedia.org/wiki/Kepler-452b), which they are now naming the most Earthlike planet. 199.82.243.106 (talk) 18:19, 23 July 2015 (UTC)
 * I would argue that 438b would be more Earth-like because of its size. Kepler-452b is too large to be "The most Earth-like." PHL Still stands that 438b, 296e and GJ 667 Cc are still the top. Note the wikipedia article you linked says the Exoplanet is 6th in habitability. It would also be nice if you could sign in instead of posting as an IP address. -Davidbuddy9 (talk) 17:39, 16 August 2015 (UTC)

Re (Drbogdan) (Undid revision 642050268 by Davidbuddy9 (talk) rv good faith but uncited edit - seems 2015 is "discovery" date per => http://exoplanet.eu/catalog/kepler-438_b/)
Look @ https://en.wikipedia.org/w/index.php?title=List_of_potentially_habitable_exoplanets&oldid=641735096 for KOI-3284.01, which is present day Kepler 438b. Just pointing it out that it was suspected in 2011, and didn't have to leave the wiki either. — Preceding unsigned comment added by Davidbuddy9 (talk • contribs) 22:14, 11 January 2015 (UTC)
 * Thank you *very much* for your comments - yes - I was aware of the "List" entry but could not find a specific reference from a reliable source (WP:CIRCULAR refs are to be avoided of course) that I could cite in the Kepler-438b article (other than a reference noting a "discovery" date of "2015" that I ended up citing in the article) - I even tried the related arXiv reference - but again - without success - perhaps you may have better luck with this - please let me know if you do of course - in any case - Thanks again for your comments - and - Enjoy! :) Drbogdan (talk) 00:35, 12 January 2015 (UTC)

Colder than Mars
So I crunched the numbers and this planet gets less irradiance than Mars does at aphelion, Mars ... 43.07% / 52.40% / 36.03% 438b ... 30.04% / 28.84% / 27.73%  where 100% is Earth's Solar Constant. And using 0.04 ecc. Zero would just be 28.84% therefore something doesn't add up about this planet if they're saying it's 3 °C. I seriously doubt that. It's not impossible but you'd be looking a very bizarre Albedo & Emissivity combination. Like a completely black all-absorbing ball covered in a 100% GHG atmosphere. Yet another article using wild speculations of scientists as references to suggest facts. Boo. 24.79.36.94 (talk) 09:30, 6 February 2015 (UTC)

Superflares are not really superflares
The habitability section suggests that Kepler-438b is rendered possibly uninhabitable by superflare activity. However the linked entry on superflares specifically mentions that superflare stars are only of spectral classes F8 to G8, and specifically not red dwarf stars. Kepler-438 is a spectral class M red dwarf, so it does not seem to be such a star. The reference that the Kepler-438b article cites for this claim does not mention superflares anywhere that I can find, so this leads me to believe that the use of the term is in error. EvanJPW (talk) 23:05, 8 December 2015 (UTC)

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