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.

Summary

GA review (see here for what the criteria are, and here for what they are not) It is reasonably well written. a. (prose, spelling, and grammar): b. (MoS for lead, layout, word choice, fiction, and lists): It is factually accurate and verifiable. a. (reference section): b. (citations to reliable sources): c. (OR): d. (copyvio and plagiarism): It is broad in its coverage. a. (major aspects): b. (focused): It follows the neutral point of view policy. Fair representation without bias: It is stable. No edit wars, etc.: 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): Overall: Pass/fail: (Criteria marked are unassessed)

Review comments for the lead section and part of the main article

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)