Hello!
Hi, Would you like to help me with the article on Stephenson 2-18? BTW do you have a Youtube channel?--THE COLOSSAL GALAXY NAMED IC1101 (talk) 07:18, 18 August 2020 (UTC)
Hi? Oh.... its you :)
Sure, I can help you. I do not have a youtube channel @THE COLOSSAL GALAXY NAMED IC1101:.PNSMurthy (talk) 07:53, 18 August 2020 (UTC)
Thanks!
BTW< Negueruela et al 2013 "The population of M-type RSG's in the starburst Cluster Stephenson 2" said that St2-18 (Mentioned as D1 of DFK 1) is M6 or maybe M6.5. (See figure 1) What temperature is that? It certainly is a Late type Red Supergiant.
I don't have discord. Cooler than Expected. Maybe 3,100 K? If then St2 -18 may be bigger, This is exciting !
0-0 Btw Exploring The mass loss history rates of red supergiants (New reference) says Stephenson 2-18 (Mentioned as RSGC1-01; This is a typo as They were talking about Stephenson 2 ) Is 630,000 times the solar luminosity ! See page 18 of that paper and Please tell this to Wikipedia editors.
BTW you should have not put parentheses and put the M6 Spectral Type
No I don't think so, I am sure because of its Higher extinction It is slightly more distant, If then It could be that we could drop the 90,000 solar luminosity and just mention it in the paragraph.
I am sure It is below the limit. Remmber the RSG luminosity limit is 660,000 lsol? Also, Does Higher Extinction mean a foreground object? Davies et al says it is NOT A foreground object. St2-18 is mysterious. Higher Extinction but Foreground Object? That is contradiction...
I think it is just Slightly in front of the cluster. you may remove the section on List of largest stars...
Pls do the discussion on User Talk: Lithopsian as I don't want it to be Inadvertently downgraded, as if it was, the largest star would be The one with a long name.... And that name is annoying...
Also, That ref ... well it does not say it is a Foreground Star !
It just means its member ship is Doubtful. It might be just not in the cluster but Somewhat near to it.
Ok, as you wish. Maybe your claim will get refuted?
LOL, I wish i does not get demoted. Tell this to the editors Hopefully the claim that it is a FG Object is wrong as I have 2 points. 1, It has higher extinction than the other star cluster members ad 2, Davies et al says it is unlikely to be a foreground Giant.
Well, there is vandalism on the Wikipedia article of HD 100546, saying that HD 100546 b is artificially created and had no movement... Pls remove it.
There is still more Vandalism, The Part where it mentioned HD 100546 B became more diffuse is Vandalism until the Part where it mentioned that it is Between the Size of A large Planet and A brown Dwarf. BTW, I think those 2 stars above St2-18 should be removed, And St2-18 is not a FG Object But Not Related to Stephenson 2. Also, I saw your post, Davies Et Al said that ST2-18 is Not A FG Object. I am sure that They are Saying that it is Unrelated to the Cluster. This is the Note that we will put. Pls tell What I have Said To the Wikipedian Editors
BTW, what is the brightness of St2-18 At Various Bands in The Infrared??? Like, Near Infrared, Mid-Infrared and Far Infrared?
BTW Would you Put WOH G64 at 1,540 Solar radii because The 1,090-1,895 Solar radii are Inaccurate. Last Night I even saw Nussun 05 Change too many sizes, and for me she is making the Liston mainstream Wikipedia a can of Worms and making it Inaccurate Such it is nothing...
Also, Remove that 2,300 solar radii star as it is potentially misleading and say on the talk page that Stephenson 2-18 is not a FG Star but possibly unrelated to Stephenson 2, not only that but also a new section about Nussun 05 adding misleading sizes and what do we do ... Pls put those on the talk page and you should say that I said it and also say that I thank Lithopsian so much for adding the 630,000 solar luminosities value and M6 spectral type to Stephenson 2-18.
OK, if then what are the luminosity and temperature of that star and Please ask Lithopsian. THE COLOSSAL GALAXY NAMED IC1101 (talk) 03:37, 20 August 2020 (UTC)
Also, is V1439 Sagittarii the New Largest star, or is it inaccurate? also, shall we bring St2-18 to 2,583 Solar radii? THE COLOSSAL GALAXY NAMED IC1101 (talk) 03:46, 20 August 2020 (UTC)
I don't think St2-18 is inaccurate, although its properties will change. What About NML Cyg? I think the 1,183 solar radii is dubious... I will make a List of Doubtful Sizes. --THE COLOSSAL GALAXY NAMED IC1101 (talk) 06:53, 20 August 2020 (UTC)
I have found out Something, V1943 Sagittarii is based on Faulty Gaia DR2 data, as the reference for its size is "Stellar and substellar companions of nearby stars from Gaia Dr2. Binarity from proper motion anomaly."
Discuss it on the talk page of List of largest stars and Mention that It is my opinion it is inaccurate.--THE COLOSSAL GALAXY NAMED IC1101 (talk) 10:18, 20 August 2020 (UTC)
Just Discuss it, It is possibly misleading People and It would be pretty hard to convince them that it is inaccurate. --THE COLOSSAL GALAXY NAMED IC1101 (talk) 04:42, 21 August 2020 (UTC)
Ok, Your reply terrified me... well why do you think the 1,788 solar radii for WOH G64 is one degree off? and also please create a youtube channel because there is this guy who claims VY Canis Majoris is 2,000 solar radii.
Ok. I will never mind the Youtuber. Don't know about V1943 Sag, it could possibly mislead people... well let's wait until The other guys figure that star out... V255 Canis majoris said that if that size is accurate, St2-18 won't be the largest star anymore... Nussun 05 replied but I want to see the other guy's replies. if then V1943 Sag might be Inaccurate... Unfortunately I can't ask them since I am blocked... When I get unblocked, Please help me on The other Stephenson 2 Star articles and I have found a paper that says IC 1101's core is larger than that of any Galaxy...--THE COLOSSAL GALAXY NAMED IC1101 (talk) 10:40, 21 August 2020 (UTC)
What do you mean? BTW V1943 Sag is based on a ‘’WILDLY’’ Unreliable parallax which is a state,ent added by Lithopsian so Stephenson 2-18 is still the largest ! I am so happy now Yeah !!!
Respond THE COLOSSAL GALAXY NAMED IC1101 (talk) 14:04, 21 August 2020 (UTC)
I don’t know how to link sources... shall we discuss about stars that could be 2,000+ solar radii?
I am going to Talk about MY Cephei, possible AGB Star or A possible Rival to St2-18. Also, I want to Talk about how Stephenson 2-18 is not 1,630 Solar radii as claimed on the Sam Halls Post.--THE COLOSSAL GALAXY NAMED IC1101 (talk) 06:14, 24 August 2020 (UTC) Also, Ask Lithopsian if he is an astronomer, and tell him about the spectral energy distribution.--THE COLOSSAL GALAXY NAMED IC1101 (talk) 10:18, 25 August 2020 (UTC)
1.) What do you want to talk about those stars. 2.) He probably knows already. I'm an astronomer, and I know, so I think he knows too.PNSMurthy (talk) 23:05, 25 August 2020 (UTC)
What do you mean? Also are you an astronomer??? And apparently you stop editing at 6 pm your time... also I am from the Philippines, like Johndric Valdez.
I am talking about the Spectral energy Distribution of St2-18. I think if it is still bright in the Far Infared it has a dust disk. I don't think it is that bright in the Far Infared and It is very faint in the far Infared.--THE COLOSSAL GALAXY NAMED IC1101 (talk) 05:45, 26 August 2020 (UTC)
Also, i think The other stars in Stephenson 2 Should have articles, As one Is probably A YHG, another With a spectral type with M7 and more. I also want to point out that IC 1101 has possibly the Largest core of any Galaxy.--THE COLOSSAL GALAXY NAMED IC1101 (talk) 14:45, 27 August 2020 (UTC)
Ok, But is Stephenson 2-18 bright or faint in the far infared?
Idk as well. Taking note of the 90,000 Lsol estimate, based on 12 micrometer and 25 micrometer long wavelengths, I don't don't think it is that bright in the Far infrared such that it is somewhat dimmer than the other Cluster members, But DFK 49 is bright in Mid Infrared. Also, I think most of St2-18's luminosity comes from Near Infared. --THE COLOSSAL GALAXY NAMED IC1101 (talk) 06:56, 28 August 2020 (UTC) I just did some research into The comments of the Videos that say Stephenson 2-18 is the largest stars and unfortunately, I found comments saying that V1943 Sagittari is the largest. That is what i was telling you :/ --THE COLOSSAL GALAXY NAMED IC1101 (talk) 12:21, 30 August 2020 (UTC)
What do you mean -_-
Also, I have found a video that says Stephenson 2-18 is just 474 radii... It is in Russian, Search “Stephenson 2-18” on Youtube and you will see the vid. try to debunk it.
2.) Only some 100 million people are Russian.
3.) So, at most, only some 100 million will see that video.PNSMurthy (talk) 04:13, 31 August 2020 (UTC) -_-, I think it will cause Russians to attack people Believing St2-18 is the largest star :/ also, the narrator saying that St2-18 is 474 Rsun does not know that It is actually St2-DFK 18 and St2-18 is St2-DFK 1. The naming for the stars is getting on my Nerves !--THE COLOSSAL GALAXY NAMED IC1101 (talk) 04:26, 31 August 2020 (UTC)
BTW, Help me calculate the Sizes of the other RSGC2 Stars. When I get unblocked on Mainstream Wikipedia, I will add them.--THE COLOSSAL GALAXY NAMED IC1101 (talk) 04:23, 3 September 2020 (UTC)
I mean the sizes from Exploring the Mass-Loss history rates of Red Supergiants.--THE COLOSSAL GALAXY NAMED IC1101 (talk) 06:24, 3 September 2020 (UTC)
???--THE COLOSSAL GALAXY NAMED IC1101 (talk) 08:11, 3 September 2020 (UTC) BTW is St2-18’s temperature consistent with its spectral type???
How so???? Respond
Hello, on List of largest galaxies, why did you tag it to be deleted? Thanks Naddruf (talk) 04:43, 21 August 2020 (UTC)
I noticed that Nussun05 has reverted to older estimates for these stars: Italicized Stars are those who have been reverted to newer estimates. Those stars who are not are those who have not been reverted to newer estimates.
They are all older than previously depicted values :/
Ok, what temperature is M6? also, which estimate of St2-18’s luminosity is more accurate? 90 K Lsol or 440k lsol or 630k lsol Also in Nussun05 sandbox, when you see the oldest revision, there is Stephenson 2 DFK 1, then it is followed by dubious-discuss. On the old Quora answer, it says Stephenson 2 DFK 1 is disputed. But the claims that St2- DFK 1 are for me silly imagination, as the 2,150 Rsol is based on SED, which is getting reliable. PNSMurthy?
Oh, just looking. BTW,based on Gaia data, what is the size of VY Cma? I wish Stephenson 2-18 will not get disputed as people seem to agree it is not a member of St2 but they say it is a late type star, and is a luminous object in the infared.
Sam Halls calculated 2,110 (!) Solar radii. Note that I am not editing frequently, I have online classes.
I saw that likely Dubious value on Quora, also, why dont look at Quora ?
Well, at this point there is no hope of VY Canis Majoris being 2,000 solar radii or more.
Wdym?
Respond Nussun 05 once again added an inaccurate size of UU Aurigae, So I checked the ref. I saw V1943 Sagitarri, and the Luminosity and Temperature are 2,712K and 5812 Solar Luminosity, which leads to a petty 340 or so solar radii. Tell this to every one at mainstream Wikipedia, and use it as a proof that Nussun 05 is dead wrong. --THE COLOSSAL GALAXY NAMED IC1101 (talk) 23:23, 16 September 2020 (UTC) Why are you not responding? are you busy?--THE COLOSSAL GALAXY NAMED IC1101 (talk) 23:23, 16 September 2020 (UTC)
Ok...Pls reply to the fact that V1943 Sag is only 343 Solar radii... Check the version where UU Aurigae is the largest star, then click the ref after that scroll down and check the entire reference, after you found it tell everyone.--THE COLOSSAL GALAXY NAMED IC1101 (talk) 08:04, 17 September 2020 (UTC)
BTW, at which distance you assume St2-18 to be at? 18,000 Ly,15,000 Ly or 10,000 Ly? Do you still ship it being an FG?
Me, well I consider it as being a possible member of Stephenson 2 at 5.5 kpc (18,000 Ly). Given the most recent Lum. Estimate, I think its properties will be relatively unchanged. Btw, IC 1101's article was updated by me yesterday to include a statement which says it has the largest core of any galaxy.
What do you mean? Say this as I want to see their reactions, IC 1101 might not be the largest (Maybe it is the largest), But it has the largest core of any galaxy.
The editors' reactions. BTW are you mad at Mr. Philip massey ad his collaborators because they gave VY CMA Only 600 solar radii? --THE COLOSSAL GALAXY NAMED IC1101 (talk) 09:37, 22 September 2020 (UTC)
BTW I think the refs that say that St2-18 is a foreground star were not listening to Davies 2007. Pls say this to Lithopsian.
Well, if it is an FG, what could explain the higher extinction? Maybe dust ? also, Davies et al said that the radial velocity might be offset by an envelope. Also, Negueruela 2012 says its radial velocity might make it a cluster member. What does a field RSG Mean?
Well Humphreys et al says its membership is doubtful. I am sad that R136a1 is no longer the most massive...
Ok, At least St2-18 is still the largest star :) If a star/nebula/galaxy gets demoted, I will accept it If an equally extreme object replaces it. I don't know why St2-18 had a higher lum than before, 440,000 then 630,000? Then Humpherys et al says that it is similar to D2, At a spec type of M6 or M7, and then it also says that it might be more luminous than 630,000 Solar luminosity, so I was so happy to see that. I wonder why it has difference despite oth using SED...--THE COLOSSAL GALAXY NAMED IC1101 (talk) 03:36, 27 September 2020 (UTC)
How to convert from logTeff to Teff?
Thank you so much. I thought logTeff 3.5 meant 3,500 Kelvin, it actually meant 3,162 Kelvin, my personal opinion on Stepehnson 2-18's temperature...--THE COLOSSAL GALAXY NAMED IC1101 (talk) 03:30, 30 September 2020 (UTC)
Well I examined the 1708 solar radii UY Sct paper. You apparently downgraded MY Cephei, that is not the most recent ref
Looks like a discussion is on. Also, if a smaller lum estimate is for St2-18, note: it might be a different star ! It looks like Stephenson 2-18 is the only star likely bigger than Saturn's orbit... :/ Should we follow most recent estimates for all the stars like NML Cygni, MY Cephei and more?
I saw Nussun05 add very old radii values of UY Scuti, from 1988. What do we do? Help ! W60 B-90 is on top again ! I am Overreacting, but that radius is raw and uses values that are not accepted.
What about Stephenson 2-18’s new parallax ?
The new early data release from Gaia
Some one has confused Stephenson 2-18 with stephenson 2 dfk 18 ! on the stephenson 2 page, there are two links to stephenson 2-18 .— Preceding unsigned comment added by THE COLOSSAL GALAXY NAMED IC1101 (talk • contribs) 11:02, 7 March 2021 (UTC)
Ok, It is the Stephenson 2 page, Stephenson 2-DFK 18 (known as 18) has been mistakenly linked into the Stephenson 2-18's page.— Preceding unsigned comment added by THE COLOSSAL GALAXY NAMED IC1101 (talk • contribs) 00:16, 8 March 2021 (UTC)
This user must be blocked. He is requesting people to re-add the inaccurate estimate of VY Canis Majoris and other inaccurately sized stars like WY Velorum, V1943 Sagittarri, UU Aurigae and more. and also saying about stars larger than around 9,000 solar radii. he also requests a star he made (AFP 489) To be added on the list with 9,770 solar radii. Pls, report this.
Sure, I'll check the new talk page additions out.PNSMurthy (talk) 10:18, 26 December 2020 (UTC)
Thanks. The user has been blocked.
Yep.PNSMurthy (talk) 01:03, 29 December 2020 (UTC)
Happy New Year, PNSMurthy.--THE COLOSSAL GALAXY NAMED IC1101 (talk) 04:48, 1 January 2021 (UTC)
Happy new year to you too!PNSMurthy (talk) 06:20, 1 January 2021 (UTC)
Hi, But VY CMa is 3,000 RSun again...
Thanks, it is obviously inaccurate ! --THE COLOSSAL GALAXY NAMED IC1101 (talk) 02:21, 7 January 2021 (UTC)
Appereantly, there is a star in andromeda that is larger than St2-18, but it is potentially dubious.
What do we do about it? IDK If this star should stay... are you busy!
Its radius is somewhat unreasonable, at 2535 rsol. It is sitting on ST2-18.( I mean it is above St2-18) PNS Murthy? PNS Murthy pls check the ref of the possibly dubious star. thank you for bringing the discussion to the talk page of the list of largest stars, I am certaintly supicious of that 2MASS Star. Shall we remove it? PNS Murthy?
Thank you soo much ! I am concerning if someone has said it is the new larger star.
So may you help me create galaxy articles here?— Preceding unsigned comment added by THE COLOSSAL GALAXY NAMED IC1101 (talk • contribs) 01:08, 20 February 2021 (UTC)
Delete Stephenson 2-18 from the list? Space Implorer Explorer wants to delete it because of uncertain distance.— Preceding unsigned comment added by THE COLOSSAL GALAXY NAMED IC1101 (talk • contribs) 22:51, 14 March 2021 (UTC)
BTW, pls help me organize Stephenson 2 on the English Wikipedia.