Talk:Sagitta/GA1

GA Review

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Reviewer: Amitchell125 (talk · contribs) 06:37, 7 October 2020 (UTC)

Happy to review this article.

@Amitchell125: great! Cas Liber (talk · contribs) 10:58, 10 October 2020 (UTC)

Assessment

Lead section / infobox

• Unlink arrow (common word), here and in the infobox.

• agreed/delinked Cas Liber (talk · contribs) 20:47, 10 October 2020 (UTC)

• Duplicate links – constellation; magnitude.

• delinked Cas Liber (talk · contribs) 20:47, 10 October 2020 (UTC)

• The red giant Gamma Sagittae… - I would try to separate these links out, perhaps by amending to ‘Gamma Sagittae, a red giant,…’.

• expanded it a bit to make that segment less "listy" Cas Liber (talk · contribs) 20:58, 10 October 2020 (UTC)

• Ditto ... cataclysmic variable binary star system… - ‘ ...a binary star system that is cataclysmically variable…’?

• not quite - have expanded a little to clarify Cas Liber (talk · contribs) 03:37, 12 October 2020 (UTC)

• Consider linking multiple stars.

• linked Cas Liber (talk · contribs) 12:15, 11 October 2020 (UTC)

• Link brown dwarf.

• linked Cas Liber (talk · contribs) 20:48, 10 October 2020 (UTC)

History

• Duplicate link – Aquila (occurs more than once).

• delinked Cas Liber (talk · contribs) 12:22, 11 October 2020 (UTC)

• ...this constellation… - the main article should introduce the constellation’s name here.

• fixed Cas Liber (talk · contribs) 12:22, 11 October 2020 (UTC)

• Link Hercules; Stymphalian birds.

• linked Cas Liber (talk · contribs) 12:22, 11 October 2020 (UTC)

• Who is Richard Hinckley Allen?

• An amateur polymath - very few people wrote about origins of star names, which meant that Allen's work has been very widely cited and publicised Cas Liber (talk · contribs) 04:01, 12 October 2020 (UTC)

• Who was Eratosthenes?

• Another polymath but sounds lame using the same word, so went with scholar Cas Liber (talk · contribs) 04:03, 12 October 2020 (UTC)

• Ref 3 (Allen) requires a page number.

• Page numbers added (required different editions) Cas Liber (talk · contribs) 04:10, 12 October 2020 (UTC)

Characteristics

• Link asterism; genitive (Genitive case).

• links added Cas Liber (talk · contribs) 03:56, 12 October 2020 (UTC)

• Who was Eugène Delporte?

• added Cas Liber (talk · contribs) 03:37, 12 October 2020 (UTC)

Notable features

Sagitta - white background

• It could be my eyes, but the top image is very black. Do you think this inverted version of the same image, which also has better quality text (right) would work better?

• I removed it - it adds nothing over the infobox image. Constellation articles often get loaded with images like these so we end up with duplicates etc. Cas Liber (talk · contribs) 04:12, 12 October 2020 (UTC)

• Duplicate links – Alpha Sagittae; planetary nebula (occurs more than once).

• removed Cas Liber (talk · contribs) 05:22, 12 October 2020 (UTC)

• Consider moving the image to the right, imo the layout then looks better.

• moot as image removed Cas Liber (talk · contribs) 05:22, 12 October 2020 (UTC)

• Who were Johann Bayer, Friedrich Wilhelm Argelander, Heis and John Flamsteed?

• added Cas Liber (talk · contribs) 05:22, 12 October 2020 (UTC)

• Link chi (and add the symbol to show the similarity?); luminosity (as it has a technical meaning); arc seconds (I believe it is hyphenated, Minute and second of arc).

• linked, symbol added. arcsecond is one work in target article so adopted that Cas Liber (talk · contribs) 05:22, 12 October 2020 (UTC)

• ...the spike … - I’m unclear what this referring to.
• Does the animation work? It didn't for me...

• It sort of does but as doesn't really add anything I have removed it Cas Liber (talk · contribs) 05:32, 12 October 2020 (UTC)

• This section makes quite hard reading. Looking at other articles, I saw the layout of the Stars section in Andromeda (constellation)—which is bulleted—easier to follow. I would consider the same approach. What do you think?

• I have done many constellation articles and for most have tried them as engaging prose on a few of the most interesting objects - the idea was that there is already a List of stars in Sagitta article that orders them like a table or list. Some have come across better than others. Generally by mixing in interesting facts and omitting some more boring items. I'll take another look at this and ponder. Items have also been organised as bright stars/double stars/variable stars etc. Cas Liber (talk · contribs) 05:32, 12 October 2020 (UTC)

Alternatively, the information for the brightest stars could be tabulated, in a summarised version of List of stars in Sagitta. Would this work in your opinion?

Name	B	F	vis. mag.	abs. mag.	Dist. (ly)	Sp. class	Notes
γ Sge	γ	12	3.51	−1.11	274	K5III	variable star, ΔV = 0.004m, P = 6.37836 d
δ Sge A	δ	7	3.82	−1.87	448	M2II + B6	semiregular variable, Vmax = 3.75m, Vmin = 3.83m
δ Sge B	δ	7	3.80
α Sge	α	5	4.39	−1.42	473	G0II	Sham, Alsahm
β Sge	β	6	4.39	−1.39	466	G8II
ζ Sge	ζ	8	5.01	0.01	326	A3V
η Sge	η	16	5.09	1.61	162	K2III	suspected variable
Name = Proper name  · B = Bayer designation  · F = Flamsteed designation  · vis. mag. = visual magnitude (m or mv), also known as apparent magnitude  · abs. mag. = absolute magnitude (Mv)  · Dist. (ly) = Distance in light-years from Earth  · Sp. class = Spectral class of the star in the stellar classification system

• I did some editing on that section, which hopefully improved things. The table might fit into the bright stars sub-section that I created. Perhaps still a daunting block of text. I suggested earlier simplifying some of the error ranges, but wasn't sure what else to do. Lithopsian (talk) 14:07, 13 October 2020 (UTC)

• I added an introductory line for the variable stars section. I think the subdivsions help alot. Had planned on doing exactly the same thing but got sidetracked with real-life chores. @Amitchell125: how do you feel it reads now? Cas Liber (talk · contribs) 01:18, 14 October 2020 (UTC)

• Ref 23 (Redpath) is a self-published source and so cannot be used to verify the text here.

• Ian Ridpath is this guy who has many books on google books. His website I'd regard as reliable as the books. He is clearly identified as the author. Cas Liber (talk · contribs) 05:32, 12 October 2020 (UTC)

Happy with your reply. Amitchell125 (talk) 14:04, 12 October 2020 (UTC)

References

• The link for Ref 9 (IAU) seems to be incorrect.
• The references for Brown, A. G. A.; et al appear to be identical, but they're not. They need to be identifiable and differentiated (using the star's identification number, for instance). The retrieval dates needs to be added too.

Checking for more.... Amitchell125 (talk) 16:14, 10 October 2020 (UTC)

I looked through all the {{cite DR2}} citations and they all have an identification number in the template. This is translated into a link to the entry for that star in the VizieR database, which shows after the conventional journal citation. The database is fixed, a copy of Gaia Data Release 2, in electronic form because it is much too big to print out in a journal paper. For this reason the template doesn't support a retrieval date. Lithopsian (talk) 15:08, 12 October 2020 (UTC)

Many thanks for that, Lithopsian. Amitchell125 (talk) 17:35, 12 October 2020 (UTC)

On hold

I've checked some of the data and no problems came up, so I'm tempted not to check every single fact. The article is an interesting read. I'm putting it on hold for a week until 18 October to allow time for the above points to be discussed and/or addressed. Some of them are suggestions (Consider; I would, do you think), and not necessarily needed for GA level. Amitchell125 (talk) 16:47, 10 October 2020 (UTC)

Passing

The article looks ready to pass now. I added an external link to Bayer's star maps at the Linda Hall Library, Sagitta is easily found. Great work, Casliber, and thanks for helping make the review a pleasure to do. Amitchell125 (talk) 06:28, 14 October 2020 (UTC)