Talk:Betelgeuse

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mass ejection

Per [1]:

The findings also indicate that the star [2020fqv progenitor] had a complicated history of mass loss a few years before core collapse. In the years before stars explode, they tend to become more active. Some astronomers point to the red supergiant Betelgeuse, which has recently been belching significant amounts of material, and they wonder if this star will soon go supernova. While Foley doubts Betelgeuse will imminently explode, he does think we should take such stellar outbursts seriously.

Is that info about mass ejection from Betelgeuse more recent than what's already in the Betelgeuse article? Maybe an update is needed. 2601:648:8202:350:0:0:0:D4A (talk) 06:34, 28 October 2021 (UTC)[reply]

2022 research on age of Betelgeuse

Colour evolution of Betelgeuse and Antares over two millennia, derived from historical records, as a new constraint on mass and age | Monthly Notices of the Royal Astronomical Society | Oxford Academic (oup.com) https://academic.oup.com/mnras/article/516/1/693/6651563?login=false

This paper discusses among other things a fairly significant revision for age (14 Myr vs. the 8-8.5 Myr in the article from the 2017 research paper), as well discussion around mass and apparent color changes. The change in age is quite significant, I wonder if this merits an edit for the starbox as well as the sections "Main sequence", "Distance measurements", "Variability"? 91.157.47.32 (talk) 07:25, 7 September 2022 (UTC)[reply]

the tenth-brightest star in the night sky - incorrect

Betelgeuse is the 10th brightest star in the sky including the Sun. If we consider the night sky, it is the 9th brightest star, excluding the Sun. So correction needed in the 1st paragraph.

N Sanu / എന്‍ സാനു / एन सानू 07:27, 9 February 2023 (UTC)

The list article (linked in the lead) shows Betelgeuse as the 10th-brightest in the night sky. Other sources may differ, but you'll need to show them. Betelgeuse is also variable over a fairly large range and may be anything from about 5th to 20th brightest at any particular time. Lithopsian (talk) 16:54, 9 February 2023 (UTC)[reply]

It seems strange to me that the article claims a fairly precise ranking given Betelgeuse's variability. Perhaps something less precise would make more sense? TowardsTheLight (talk) 20:03, 9 February 2023 (UTC)[reply]

The body of the article discusses that, at extremes, it can be the 6th-brightest or 20th-brightest. We should summarise that in the lead in some way that is concise, not too detailed, but not misleading. It could be argued that the current lead fails on one count by being misleading. Lithopsian (talk) 21:39, 9 February 2023 (UTC)[reply]

Daily brightness watch - BetelBot

Currently at 156% normal brightness and rising. See the Betelgeuse Status bot on Twitter. Tayste (edits) 20:41, 27 April 2023 (UTC)[reply]

2023 occultation

The occultation will occur after 01:00 AM of December 12 in UTC time, not December 11. Aminabzz (talk) 14:43, 10 December 2023 (UTC)[reply]

Supernova in tens of years

New study published estimating the star will go supernova in tens of years. See paper here: [2]. Quote from the paper's conclusion:

> We conclude that Betelgeuse should currently be in a late phase (or near the end) of the core car- bon burning. After carbon is exhausted in the core, a core-collapse leading to a supernova explosion is expected in a few tens years. — Preceding unsigned comment added by 137.79.193.2 (talk) 16:06, 20 June 2023 (UTC)[reply]

Don't exaggerate what the paper says. "Late stage" of the carbon burning can last thousands of years. After that, then there are just a few decades left. Also, important for Wikipedia purposes, it isn't yet accepted for publication. When it is, we can add something to the article. Lithopsian (talk) 18:19, 20 June 2023 (UTC)[reply]

I wouldn't be so sure of adding the information, this [3] paper already considers the findings doubtful. VY Canis Majoris (talk) 06:25, 21 June 2023 (UTC)[reply]

Agreed. It is not even known if Betelgeuse has reached the carbon burning stage. -- Kheider (talk) 10:25, 21 June 2023 (UTC)[reply]

Thanks. Exceptional claims require exceptional evidence. I really don't like people online who constantly jump to conclusions. The Space Enthusiast (talk) 16:34, 21 June 2023 (UTC)[reply]

According to some predictions, Betelgeuse will explode in 140000 years, or earlier. 178.95.99.242 (talk) 06:15, 24 June 2023 (UTC)[reply]

https://www.youtube.com/watch?v=3QgLwpuDGhI — Preceding unsigned comment added by 2600:6C67:1C00:5F7E:A931:B1B0:FAB4:760A (talk) 05:26, 15 July 2023 (UTC)[reply]

Apart from YouTube is not a reliable source, the video is just (mis-)quoting the same journal paper we have already discussed. Lithopsian (talk) 12:35, 16 July 2023 (UTC)[reply]