Talk:HD1

This is the talk page for discussing improvements to the HD1 article.
This is not a forum for general discussion of the article's subject.

Put new text under old text. Click here to start a new topic.
New to Wikipedia? Welcome! Learn to edit; get help.

Article policies

Find sources: Google (books · news · scholar · free images · WP refs) · FENS · JSTOR · TWL

Astronomy: Astronomical objects Start‑class Mid‑importance

	Astronomy portal This article is within the scope of WikiProject Astronomy, which collaborates on articles related to Astronomy on Wikipedia.AstronomyWikipedia:WikiProject AstronomyTemplate:WikiProject AstronomyAstronomy articles
Start	This article has been rated as Start-class on Wikipedia's content assessment scale.
Mid	This article has been rated as Mid-importance on the project's importance scale.
	This article is supported by WikiProject Astronomical objects, which collaborates on articles related to astronomical objects.

Physics Start‑class Low‑importance

	Physics portal This article is within the scope of WikiProject Physics, a collaborative effort to improve the coverage of Physics on Wikipedia. If you would like to participate, please visit the project page, where you can join the discussion and see a list of open tasks.PhysicsWikipedia:WikiProject PhysicsTemplate:WikiProject Physicsphysics articles
Start	This article has been rated as Start-class on Wikipedia's content assessment scale.
Low	This article has been rated as Low-importance on the project's importance scale.

Tip: Anchors are case-sensitive in most browsers.

This article links to one or more target anchors that no longer exist.

[[List of the most distant astronomical objects#Notably distant objects|An early galaxy candidate]] The anchor (#Notably distant objects) is no longer available because it was deleted by a user before.

Please help fix the broken anchors. You can remove this template after fixing the problems. | Reporting errors

Created talk-page

Nature timeline

−13 —

–

−12 —

–

−11 —

–

−10 —

–

−9 —

–

−8 —

–

−7 —

–

−6 —

–

−5 —

–

−4 —

–

−3 —

–

−2 —

–

−1 —

–

0 —

Dark Ages

Reionization

Matter-dominated
era

Accelerated expansion

←

←

←

←

Earliest quasar / black hole

←

←

←

←

←

←

←

←

←

←

←

←

Earliest animals / plants

←

Cambrian explosion

←

Earliest mammals

←

Earliest apes / humans

L
i
f
e

(billion years ago)

Created the talk-page for the "HD1" article - Stay Safe and Healthy !! Drbogdan (talk) 19:19, 7 April 2022 (UTC)[reply]

ITN discussion - New Link (4/16/2022)

If interested - a discussion is considering presenting "HD1 (galaxy)" as an "ITN news note" at => "Wikipedia:In the news/Candidates/April 2022#HD1 (galaxy)" - editors are more than welcome to present their views and comments of course - iac - Stay Safe and Healthy !! - Drbogdan (talk) 23:00, 8 April 2022 (UTC)[reply]

"Oldest" galaxy

Just want to raise a clarification, since this is widely reported by the media. Because this galaxy is right at the ~~end of the reionization era~~ end of the Dark Ages, the era where the first stars are still forming, isn't it more correct to say that this is the youngest galaxy we have observed, rather than "oldest"? We are looking at a galaxy that is 70 million years old, at least its observed light. And it would be incorrect to assume that this galaxy still exists as of the present day. We don't look at a childhood photo of the oldest human and describe that this is the oldest human we have ever recorded. SkyFlubbler (talk) 02:27, 9 April 2022 (UTC)[reply]

Done - I agree. I have changed it to "most ancient". Alexcalamaro (talk) 08:06, 9 April 2022 (UTC)[reply]

Wait wat... isnt that the same as oldest? · · · Omnissiahs hierophant (talk) 08:28, 9 April 2022 (UTC)[reply]

Done - seems the word "earliest" may be better - text now adjusted in the main HD1 article - also, for support of the word adj, see my related => "Template:Nature timeline" (see copy on the right) - iac - Stay Safe and Healthy !! - Drbogdan (talk) 12:26, 9 April 2022 (UTC)[reply]

Right ascension and Declination of HD1 and HD2

In this article there are descriptions HD1 (10:01:51.31 +02:32:50.0) and HD2 (02:18:52.44 -05:08:36.1). Are these expressions common in the astronomical community? If not, is it possible to add RA and DEC to them with links to Right ascension and Declination like HD1 (RA:10:01:51.31 DEC:+02:32:50.0)?―― Phoenix7777 (talk) 09:53, 9 April 2022 (UTC)[reply]

Done - @Phoenix7777 and SkyFlubbler: (and others) - Thanks for the suggestion - yes - *entirely* agree - added suggested edit to the "HD1 (galaxy)#Discovery" section - adding to the infobox may be ok for HD1, but not as well for HD2 I would think, since the article features HD1 (and only secondarily HD2) - however - flexible with this of course - iac - Stay Safe and Healthy !! - Drbogdan (talk) 12:16, 9 April 2022 (UTC)[reply]

It would be better off to just remove them and leave it as a data in the infoboxes (as for all hard numerical data). We should just, however, describe what constellation are they located to simplify stuff. SkyFlubbler (talk) 10:08, 9 April 2022 (UTC)[reply]

Attention from expert

Considering the vital importance of these old galaxies at determining how the early universe formed, which is exciting in itself, this galaxy may shed light on earlier star formation as well. I am surprised at the lack of attention this article is getting, although it is being edited and viewed by a few I would have expected far more attention. Considering its importance I think it should be looked at by someone with more qualifications than I do. Space pierogi (talk) 16:01, 11 April 2022 (UTC)[reply]

Photometric, not Spectroscopic

The article incorrectly lists HD1's spectroscopic redshift as 13.27 - this the estimated photometric redshift, not the fsr more accurate spectroscopic redshift. As far as I'm aware HD1 is still awaiting spectroscopic confirmation by the JWST, as noted in the article further on. 2A02:C7D:A901:CC00:ED61:EBE7:F976:E36F (talk) 01:13, 18 August 2022 (UTC)[reply]

Requested move 20 November 2023

The request to rename this article to HD1 has been carried out.

If the page title has consensus, be sure to close this discussion using {{subst:RM top|'''page moved'''.}} and {{subst:RM bottom}} and remove the {{Requested move/dated|…}} tag, or replace it with the {{subst:Requested move/end|…}} tag.

HD1 (galaxy) → HD1 – There is no need for a disambiguator, since HD1 already redirects here. 117daveawesome (talk) 07:46, 20 November 2023 (UTC)[reply]

Support or possibly disambiguate with Euro1080 which was formerly the target of the rediret though the galaxy appears primary based on Google. Crouch, Swale (talk) 17:46, 20 November 2023 (UTC)[reply]
Or just move to HD1 (disambiguation) 117daveawesome (talk) 11:23, 27 November 2023 (UTC)[reply]