Talk:Hydra (moon)

message: It seems like this article, and S/2005 P 2 are almost identical to each other. Wouldn't it be better to merge the two? 65.92.150.128 21:21, 21 January 2006 (UTC)
replies: text: We don't do that for any of the other moons. And when they're named, we'd have an article named something like "Cerberus and Orthrus (moons)". kwami 22:31, 21 January 2006 (UTC)
replies: text: I wouldn't support merging either. True, not much may be known about the one that isn't known about the other – but that is certain to change as more is learnt about trans-Neptunian objects. QuartierLatin1968  23:00, 21 January 2006 (UTC)

text: Every planetary satellite has its own article. Let it stay so.--Jyril 00:00, 22 January 2006 (UTC)
thread_title:  Merging with [[S/2005 P 2]]? 

message: :... the moon is calculated have a diameter of between 44-50 km, if its reflectivity is similar to Charon's 35%, and 130-150 km, if it has a reflectivity of 4% like the darkest KBOs. All of Pluto's moons are spectrally neutral, however, so the lower end of the range seems likely. 
Lower end of radius or albedo range? (same applies to S/2005 P 2) Deuar 14:45, 28 May 2006 (UTC)
thread_title:  radius or albedo 

message: Science magazine reports that S/2005 P 1 will be called "Hydra".   This article should presumably be moved to Hydra (moon), but I suppose it is appropriate to wait until the official announcement on June 23.
:Yeah, better to wait for the official announcement.--JyriL talk 13:50, 21 June 2006 (UTC)
replies: text: The offical annoucement is moot since they've already offically annouced what they intend on naming the moons during their redundent offical annoucement.  If that made any sene.  Anywho, I tried to change the titles without logging on in an apparently unelegent name (cut and paste).  I'm not going to move the article as someone suggested. Lou.nunez 09:42, 22 June 2006 (UTC)
thread_title:  Article Name Change 

message: S/2005 P 1 → Hydra (moon) … Rationale: To reflect the the new offical name for Pluto III.  BTW I tired doing it myself and I just seemed to screw things up.   Please share your opinion at Talk:Hydra (moon). Lou.nunez 09:58, 22 June 2006 (UTC)
replies: text: Add *Support or *Oppose followed by an optional one-sentence explanation, then sign your opinion with ~~~~
*Support  It's the official name of the moon, so that ought to be reflected.  --DavidK93 14:03, 22 June 2006 (UTC)
replies: text: Since this is all over the news (try google-news-searching "Hydra Nix") I think that the general public now thinks of these moons as Nix and Hydra, and I'd expect the scientific establishment to follow quickly. DenisMoskowitz 14:27, 23 June 2006 (UTC)
replies: text: Okay, I buy it.  Besides, if the general public uses the term, it should trump the scientific community's standards anyhow. WilyD 15:42, 23 June 2006 (UTC)
replies: text: Good point. I mean, who uses the term Dihydrate Monoxide, instead of it's common term, water? Tuvas 17:53, 23 June 2006 (UTC)

text: Add any additional comments
Really, this should be done on the talk page for the existing article (ie. talk:S/2005 P 1) GW_Simulations|User Page | Talk | Contribs | E-mail 19:10, 22 June 2006 (UTC)

text: Merged. Ian¹³/t 19:03, 23 June 2006 (UTC)
replies: text: I have fixed any double redirects, but links to the wrong page in articles and templates and the like still need to be updated (preferably by someone who knows these articles well). Ian¹³/t 19:04, 23 June 2006 (UTC)
replies: text: I did a few of them that were obviously OK to switch, working from the bottom of P2's "what links here" page. DenisMoskowitz 19:23, 23 June 2006 (UTC)

text: I got carried away and did the rest of them.  Didn't touch user pages, talk pages, the Requested Moves page, and the pages P and S where the designation itself was used as an example. DenisMoskowitz 19:50, 23 June 2006 (UTC)
replies: text: Sounds sensible, and that you have done all the right ones. Many thanks. Ian¹³/t 19:21, 24 June 2006 (UTC)
thread_title: Requested move

message: :Add *Support or *Oppose followed by an optional one-sentence explanation, then sign your opinion with ~~~~
*Support  It's the official name of the moon, so that ought to be reflected.  --DavidK93 14:03, 22 June 2006 (UTC)
replies: text: Since this is all over the news (try google-news-searching "Hydra Nix") I think that the general public now thinks of these moons as Nix and Hydra, and I'd expect the scientific establishment to follow quickly. DenisMoskowitz 14:27, 23 June 2006 (UTC)
replies: text: Okay, I buy it.  Besides, if the general public uses the term, it should trump the scientific community's standards anyhow. WilyD 15:42, 23 June 2006 (UTC)
replies: text: Good point. I mean, who uses the term Dihydrate Monoxide, instead of it's common term, water? Tuvas 17:53, 23 June 2006 (UTC)
thread_title: Survey

message: :Add any additional comments
Really, this should be done on the talk page for the existing article (ie. talk:S/2005 P 1) GW_Simulations|User Page | Talk | Contribs | E-mail 19:10, 22 June 2006 (UTC)
replies: text: Merged. Ian¹³/t 19:03, 23 June 2006 (UTC)
replies: text: I have fixed any double redirects, but links to the wrong page in articles and templates and the like still need to be updated (preferably by someone who knows these articles well). Ian¹³/t 19:04, 23 June 2006 (UTC)
replies: text: I did a few of them that were obviously OK to switch, working from the bottom of P2's "what links here" page. DenisMoskowitz 19:23, 23 June 2006 (UTC)

text: I got carried away and did the rest of them.  Didn't touch user pages, talk pages, the Requested Moves page, and the pages P and S where the designation itself was used as an example. DenisMoskowitz 19:50, 23 June 2006 (UTC)
replies: text: Sounds sensible, and that you have done all the right ones. Many thanks. Ian¹³/t 19:21, 24 June 2006 (UTC)
thread_title: Discussion

message: This statement in current version of the article is incorrect: It was named after Hydra, the monster who guarded Pluto's underworld in Greek mythology. The mythological Hydra did not guard the underworld, that was Kerberos (Cerebrus). Reference should be to the monster which features in the legends of Herakles (Hercules) as the referenced article on the mythological Hydra correctly details.
:Actually there was a hydra that that guarded the underwold. It lived under the waters of the underworld. I don't remember what body of water this was...if it was the Styx, the Lethe or Menemosyne or something all together different. But a hydra did guard the underworld. I have edited the page to reflect this. (As a side note, it is possible that the hydra guarding the "underworld" could be an early creation, a water creature that hides in the under the water, before the underworld was an actual realm. I don't know, just trying to think of possibilites of where this came from...but I know this myth exists somewhere.) Jupiterzguy 03:11, 29 August 2006 (UTC)
replies: text: Okay, I think I figured it out. The original Hydra myth featured the hydra that lived in waters so deep and dark it was said to be an entrance to the Underworld itself. This legend had apparently fallen out of common usage by the time of the Heracles myths, and the Hydra just guarded some random water body.Jupiterzguy 14:35, 14 September 2006 (UTC)
thread_title: Mythology Correction

message: An official image should be released in a few minutes/hours/days. This one was captured from the NASA-TV live-stream.
LINK (not mine): http://i.imgur.com/pG7Ek8b.jpg
Damn thing looks like a chinchilla.....Ericl (talk) 13:22, 17 July 2015 (UTC)
thread_title:  New picture of Hydra from New Horizons. 

message: An IP editor continues to swap out the processed picture with the pixelated one. I don't see the logic here, but the IP doesn't care to explain. So what image should be used? Dustin (talk) 22:18, 20 July 2015 (UTC)
thread_title:  Infobox image 

message: What on Earth is an "even rotational axis"? 89.12.202.104 (talk) 22:27, 12 September 2015 (UTC)
replies: text: That's nothing (it's supposed to be a construction of the form "and even this", but I don't know why we should use that). Apparently, "rotational axis" is mentioned twice.  --JorisvS (talk) 22:58, 12 September 2015 (UTC)
thread_title:  even rotational axis? 

message: The albedo figures for Hydra are inconsistent. The article states:
"Hydra's reflectivity (the percentage of incident light reflected from the surface) is intermediate between those of Pluto and Charon."
Pluto's albedo is 0.49-0.66 (geometric), that of Charon is 0.2-0.5.
"Albedo 0.83 ± 0.08 (geometric)"
This indicates an albedo significantly higher than Pluto's.
"Hydra's reflectivity is estimated to be about 45 percent."
This agrees with the earlier figure (between Pluto and Charon), but strongly disagrees with the latter.
Renerpho (talk) 15:45, 10 September 2017 (UTC)
thread_title:  Inconsistent figure for albedo/reflectivity - clarification needed 

message: Do we have any suggestion of where the so-called estimate of Hydra's mass has come from? It's very nearly the vaguest one I've seen on these pages, other than one of the two guesses for Nix. 4.8 ±4.2 x 10^16 kg essentially means "somewhere between 6 and 90 teratonnes... like... we don't really know..."; given that it's a 15:1 range, isn't it hardly any better than saying "no more than 9.0 x 10^16 kg"? I can only speculate that the lower and upper estimates for both volume and density were multiplied, than it was thought reasonable to take the average of the two results as a putative "actual" figure even though the error bars are humongous.
It's a bit like saying my own height is about 96cm, plus or minus 84cm - or 12 to 180cm - although the reality is right at the top end of that total range... or maybe 180cm, plus or minus 157cm (= 23 to 337cm...) ... or indeed if my size turned out to be right at the low end, 14.4m, plus/minus 12.6m... Whilst the middle one gives you a very rough range of how large a human might be, that covers fantasy giants right down to fairies and gnomes, well outside the actual extremes of giantism and dwarfism, and even all but the most premature of babies... 209.93.141.17 (talk) 02:06, 25 September 2017 (UTC)
thread_title:  Another pretty much meaningless mass figure 

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thread_title:  External links modified (January 2018)