Talk:K2-18b/GA1

GA Review
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Reviewer: Amitchell125 (talk · contribs) 19:35, 1 April 2023 (UTC)

Happy to review this article.

GA review (see here for what the criteria are, and here for what they are not)

(Criteria marked are unassessed)
 * 1) It is reasonably well written.
 * a. (prose, spelling, and grammar):
 * b. (MoS for lead, layout, word choice, fiction, and lists):
 * 1) It is factually accurate and verifiable.
 * a. (reference section):
 * b. (citations to reliable sources):
 * c. (OR):
 * d. (copyvio and plagiarism):
 * 1) It is broad in its coverage.
 * a. (major aspects):
 * b. (focused):
 * 1) It follows the neutral point of view policy.
 * Fair representation without bias:
 * 1) It is stable.
 * No edit wars, etc.:
 * 1) It is illustrated by images and other media, where possible and appropriate.
 * a. (images are tagged and non-free content have non-free use rationales):
 * b. (appropriate use with suitable captions):
 * 1) Overall:
 * Pass/fail:
 * 1) It is broad in its coverage.
 * a. (major aspects):
 * b. (focused):
 * 1) It follows the neutral point of view policy.
 * Fair representation without bias:
 * 1) It is stable.
 * No edit wars, etc.:
 * 1) It is illustrated by images and other media, where possible and appropriate.
 * a. (images are tagged and non-free content have non-free use rationales):
 * b. (appropriate use with suitable captions):
 * 1) Overall:
 * Pass/fail:
 * No edit wars, etc.:
 * 1) It is illustrated by images and other media, where possible and appropriate.
 * a. (images are tagged and non-free content have non-free use rationales):
 * b. (appropriate use with suitable captions):
 * 1) Overall:
 * Pass/fail:
 * b. (appropriate use with suitable captions):
 * 1) Overall:
 * Pass/fail:
 * 1) Overall:
 * Pass/fail:
 * Pass/fail:

Lead section / infobox

 * Link mass.
 * In the infobox, link red dwarf; K2-18; exoplanet.
 * the same amount of starlight – the Earth’s water is in liquid form due to radiation from the sun (Solar irradiance), not starlight.
 * its atmosphere – ‘the atmosphere of K2-18b’ sounds better.

1 Star

 * Link K2-18 at the beginning of the section; parsecs; ly; mass; luminosity.
 * Move the link to Sun where it first occurs in the text.
 * It is colder – ‘The star is colder’ is clearer.
 * moderately active; tend to create false signals – need clarification.
 * analysis of planets difficult should be followed by a comma.

2 Physical properties

 * Link density; core (Planetary core.
 * passing in front of it during its orbit – this is true for all orbiting objects. It needs to made clear that the object appears to pass in front of the star, as viewed from Earth.
 * There is a second planet around K2-18, named K2-18c – this has been stated already in the text.
 * through tides – it’s not clear what this is supposed to mean.
 * envelope – ‘atmosphere’?
 * a Neptune-like composition – needs to be explained.
 * against their own heat's; If an ocean exist – need copy editing.
 * Comma after between Earth and Neptune. Ditto with a thick envelope.
 * What are well-separated planetary populations?
 * core-ocean exchanges – a brief explanation in brackets, or a relevant link, would help readers to understand this technical-sounding term.
 * This distinction – what distinction is being referred to here?
 * "radius valley" – should be in italics, not quotation marks.
 * Internal heating may increase temperatures follows It probably has little internal heat left, which sounds contradictory.
 * impact the surface temperature – 'affect the surface temperature'?

Not GA
I'm stopping there. This article has potential, but at present I'm afraid it needs a deal of work before the GA standard is reached. There are issues with the quality of the prose, the use of jargon and technical terms, and the links. I do not think the article can pass unless everything that needs to be sorted is listed—which is something I am not prepared to do. Amitchell125 (talk) 18:57, 5 April 2023 (UTC)