Talk:Habitable zone

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Earth only in CHZ due its Greenhouse gases?

My understanding is that Earth itself is only in the CHZ due to its Greenhouse gases (although this may well be mistaken, and/or depend on who is defining the CHZ, etc). I think I read that explicitly stated (without my qualifiers about who is defining CHZ, etc) many years ago somewhere in Carl Sagan's book Broca's Brain. Arguably this is implicit in our article, but it does not seem to be clearly or explicitly stated with the backing of Reliable Sources. I think our article would be improved if this were done (with suitably-worded qualifiers if needed), and I may (or may not, per WP:NOTCOMPULSORY and WP:BNO) eventually try to do so myself, tho I suspect it will be done (if it ever does get done) quicker and better by more interested and competent editors than me. Tlhslobus (talk) 18:03, 25 December 2021 (UTC)

Meteorite

Is one coming, a large one?

Has one been recently?

I am thinking about the one in Arizona, 60+ years ago?

Thank you

Boo Boo Boo Boo 79 (talk) 10:40, 31 December 2021 (UTC)

Tidal lock radius

There is a diagram on p. 124 of the following paper that shows the tidal lock radius for ZAMS star:

• Kasting, James F.; et al. (January 1993), "Habitable Zones around Main Sequence Stars" (PDF), Icarus, 101 (1): 108–128, Bibcode:1993Icar..101..108K, doi:10.1006/icar.1993.1010, retrieved 2022-03-25.

If it could be converted to a SVG diagram, it could be useful for this article and the one on tidal locking. Praemonitus (talk) 20:58, 25 March 2022 (UTC)

Venus

Isn't Venus also in the Habitable Zone? 2001:8003:913E:5D01:3829:3040:C356:1190 (talk) 05:16, 16 March 2023 (UTC)

The image is wrong. Venus has potentially been hospitable for life in the long distant past. It should lie just within the inner edge of the hospitable zone, see: https://exoplanets.nasa.gov/resources/2255/what-is-the-habitable-zone/ Polyamorph (talk) 11:01, 16 March 2023 (UTC)

I don't care about its past, I want to know its status as of today. I have googled this topic, some sources state that Venus is within the Habitable Zone, but some other sources state that it isn't. I am confused. 2001:8003:913E:5D01:3829:3040:C356:1190 (talk) 10:49, 19 March 2023 (UTC)

Requested move 27 September 2023

The following is a closed discussion of a requested move. Please do not modify it. Subsequent comments should be made in a new section on the talk page. Editors desiring to contest the closing decision should consider a move review after discussing it on the closer's talk page. No further edits should be made to this discussion.

The result of the move request was: Moved to Habitable zone. Per consensus seen below. (closed by non-admin page mover) SilverLocust 💬 04:46, 4 October 2023 (UTC)

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Circumstellar habitable zone → Goldilocks zone – The term "Goldilocks zone" is used much more often than the term "circumstellar habitable zone" to refer to this topic. See this ngram; per WP:COMMONNAME. – Treetoes023 (talk) 03:34, 27 September 2023 (UTC)

• Support per nom.--Ortizesp (talk) 06:16, 27 September 2023 (UTC)

• Move to Habitable zone, which is even more frequently used, accounts for most of the links to this article, and is unlikely to be ambiguous with the much lesser-known galactic habitable zone. See more ngrams. –LaundryPizza03 (dc̄) 15:04, 27 September 2023 (UTC)

@LaundryPizza03: The term "habitable zone" has multiple meanings outside of circumstellar habitable zone and galactic habitable zone though. That's why I chose the term "Goldilocks zone" over "habitable zone" despite google ngram showing that the latter is more common because ngram counts all definitions of habitable zone so there is no way to know its actual frequency when referring to this topic and how it compares to the frequency of "Goldilocks zone". – Treetoes023 (talk) 15:17, 27 September 2023 (UTC)

Habitable zone already redirects here, which means this article is already considered to be the WP:PRIMARYTOPIC for that term. So using it as the article title is perfectly fine. Rreagan007 (talk) 17:02, 27 September 2023 (UTC)

Well, a basic search for "habitable zone" immediately returns almost entirely results about the circumstellar habitable zone. –LaundryPizza03 (dc̄) 13:36, 28 September 2023 (UTC)

Which is why the title of this article should just be "Habitable zone". Rreagan007 (talk) 14:55, 28 September 2023 (UTC)

• Oppose, the term "Goldilocks zone" is only used by popular sources; the term used by astronomers is "habitable zone". Would support a move to the latter title per above, it already redirects here and is unlikely to be ambiguous as this is by far the most common use of the term. SevenSpheres (talk) 15:26, 27 September 2023 (UTC)

@SevenSpheres: I don't understand your point, popular sources are better than non-popular sources when determining the common name. – Treetoes023 (talk) 15:32, 27 September 2023 (UTC)

In an article about science we should use scientific terms. In any case I'm pretty sure "habitable zone" is the more common term in popular sources too. SevenSpheres (talk) 15:46, 27 September 2023 (UTC)

• Oppose Habitable zone is far more common. Fdfexoex (talk) 15:41, 27 September 2023 (UTC)
• Move to Habitable zone per WP:COMMONNAME. Rreagan007 (talk) 16:00, 27 September 2023 (UTC)
• Oppose Goldilocks zone, support habitable zone. --𝕁𝕄𝔽 (talk) 16:36, 27 September 2023 (UTC)
• Move to Habitable zone as the real common name. Mdewman6 (talk) 19:38, 27 September 2023 (UTC)

The discussion above is closed. Please do not modify it. Subsequent comments should be made on the appropriate discussion page. No further edits should be made to this discussion.

CHZ extreme conservative limits

The Earth has an orbit eccentric enough to take it outside these limits more often than not. The extreme conservative limits are 0.99-1.004 AU, while the Earth's orbit varies from ~0.98-1.02 AU. Jtadesse (talk) 21:51, 15 December 2023 (UTC)