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The content of this article is more or less a straight copy and paste from the main article. There doesn't seem a whole lot of point in doing that, so I've changed it back to a redirect. When so little is known about the moon anyway, it makes much more sense to discuss it in the main article.
File:2006-16-a-full.jpg 2003 UB313 and satellite: artist's impression | ||||
Discovery | ||||
---|---|---|---|---|
Discovered by |
Michael E. Brown (using the Keck Observatory) | |||
Discovered in | 10 September 2005 | |||
Orbital characteristics | ||||
Semi-major axis (a) | 30,000 - 36,000 km | |||
Eccentricity | ||||
Orbital period (P) | ~1da4 d | |||
Inclination | ||||
Parent body | 20as03 UB313 | |||
Physical characteristics | Mean diameter | 300 asd- 400 km | ||
Mass | ||||
Mean density | ||||
Rotation period | ||||
Axial tilt | ||||
Albedo | ||||
Surface temp. | ||||
Atmosphere | ||||
| ||||
This image would be nice:
" Xena"; " Ceres", " 1 Ceres".
Hilarious & silly.
Miles O'Brien [ Miles_O'Brien_(journalist) ], cnn, speaking with Neil deGrasse Tyson, announced this mnemonic:
"My Very Educated Mother Just Sent Us Nine Pizzas,..."
"Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune, Pluto,..."
Hopiakuta 20:43, 16 August 2006 (UTC)
Am I the only one that finds this choice of name ironic? Concidering that Xena was played by a Lucy Lawless? Perhaps... Hmm, did this maybe subconciously affect their decisions for the official name of the newly designated planet? -- Lucy (Not Lawless, just coincidence) 08:16, September 14, 2006 (UTC)
I suspect that Mike named them discord and lawlessness because of all the controversy surrounding them and their naming. This would need to be confirmed by Mike. Watch for interviews. Michaelbusch 15:59, 14 September 2006 (UTC)
Dysnomia is a memory disorder characterized by a marked difficulty in remembering names or recalling words needed for oral or written language. Uh... sorry, what was the name of this satellite again? -- mglg( talk) 17:46, 14 September 2006 (UTC)
Some articles talking about the coincidence: Dwarf Planet, Cause of Strife, Gains ‘the Perfect Name’ NY Times, Dwarf planets get new names astronomy.com, and here's one that quotes Brown: Eris, Goddess of Strife, Joins Solar System Amid Raucous Debate (The Planetary society) - but the quote isn't confirmed anywhere else Andjam 23:57, 16 September 2006 (UTC)
could someone fix the infobox? It's transparent..-- TheFEARgod ( listening) 20:43, 14 September 2006 (UTC)
After all, "Dysnomia" has no historic claim to the name (an argument, IMO flawed, made with 134340 Pluto), and we do have a redirect already at Dysnomia for the rare user looking for this obscure body. -- John Kenneth Fisher 22:24, 14 September 2006 (UTC)
The result of the proposal was No move Duja 10:44, 18 October 2006 (UTC)
Moon can be a confusing term -- Cat out 14:42, 12 October 2006 (UTC)
Moon is commonly used for natural satellites, there's no reason to use a more complicated term. – Alensha talk 16:58, 12 October 2006 (UTC)
The lead sentence is not necessary. It's not officially named "136199 Eris Dysnomia", it is named Dysnomia.
The article says, "the satellite was used to constrain the mass of Eris". What is the meaning of "constrain" in this sentence? Is is referring to constraint algorithms? Vsst 03:02, 15 July 2007 (UTC)
The text in Properties says "its diameter is estimated to be less than 150 km" and in the table it says "equatorial radius 175±75 km" (= equatorial diameter 350±150 km) - a clear misfit. So which is wrong ? —Preceding unsigned comment added by Allgaeuer ( talk • contribs) 23:42, 11 July 2008 (UTC)
I can't access the ref for the 2ary pronunciation. Is it really "dice-nomia", or is the y just long in the nickname Dy? kwami ( talk) 12:16, 29 September 2008 (UTC)
Where do the figures for eccentricity and inclination come from ? I have just read the reference fully, but there are no figures for eccentricity and inclination included in that reference. -- Franklin Demenge ( talk) 10:58, 3 August 2009 (UTC)
The figures are all there ! Thank you for the explanation. Is that document the same as "Science 316 (5831): 1585" or it is additional to "Science 316 (5831): 1585", i.e, only "Supporting Online Material" as it's described ? It gives figures for "Orbit 1" and "Orbit 2". Please explain why there are two orbits, and why only the figures for "Orbit 2" are stated on Wikipedia ? -- Franklin Demenge ( talk) 20:04, 3 August 2009 (UTC)
Thank you -- Franklin Demenge ( talk) 14:56, 4 August 2009 (UTC)
The adjective for Dysnomia is given as "Dysnomian". This is not referenced. Are adjectives for planets and moons decided by an Astronomy organisation, or are these adjectives taken from a particular dictionary ? -- Franklin Demenge ( talk) 18:07, 5 August 2009 (UTC)
I have collected together all of the data concerning Dysnomia from all the possible research references concerning Dysnomia. This is all that is known. Before adding any of it, I am leaving it here for a few days for possible discussion as I am not sure which of it to add. For some qualities the astronomers unusually gave two figures. I don't know what a few of the other figures mean. So I am not sure if some of the figures actually concern Dysnomia, or if they are merely figures explaining how they obtained the data concerning Dysnomia at the time.
Orbital characteristics
Orbital period [X2] : 15.772 ± 0.002 days or 15.774 ± 0.002 days
Inclination [X2] : 61.3 ± 0.7° or 142 ± 3°
Semi-major axis [X2] : 37430 ±140 km or 37,350 ±140 km
Eccentricity [X2] : < 0.010 or < 0.013
Longitude of ascending node [X2] : 139 ± 1° or 68 ± 3°
Mean anomaly [X2] : 328.6 ± 0.6° or 306.5 ± 1.3°
Argument of periapsis : unknown
Physical characteristics
Equatorial radius [X4] : ~ 50-125 km
Axial tilt (obliquity) [X2] : 78°
Others ?
Current sub-solar latitude [X2] : 39°
Year of vernal equinox [X2] : AD 2239.5 or AD 2126.5
Em [X2] : 339.3° or 251.3°
V magnitude [X3] : 18.8
Satellite fractional brightness [X3] : 1.9 ± 0.5 %
References
[X1] International Astronomical Union Circular [2006] 8747 (D.W.E. Green)
[X2] Science [2007] 316 (5831) : 1585 and Supporting Online Material (M.E.Brown, E.L.Schaller)
[X3] The Astrophysical Journal Letters [2006] 639 : L43-L46 (M.E. Brown, M.A. van Dam, A.H.Bouchez, D.Le Mignant, R.D.Campbell, J.C.Y. Chin, A.Conrad, S.K.Hartman, E.M.Johansson, R.E.Lafon, D.L. Rabinowitz, P.J.Stomski Jr., D.M.Summers, C.A.Trujillo, P.L. Wizinowich)
[X4] California Institute of Technology web site http://www.gps.caltech.edu/~mbrown/planetlila/moon/ (M.E.Brown)
--
Franklin Demenge (
talk) 18:38, 9 August 2009 (UTC)
CalRis ( talk) 10:18, 30 November 2011 (UTC): This matter is still unsettled. I believe that the table should either cite the values of both orbits or it should use rounded values instead. The current tables implies a false certainty. Rounded values might look like this:
Who discovered Dysnomia ? In the article it claims Mike Brown. In the info-box there are four names including his. The research paper describing the discovery gives the names of the whole team :
The Astrophysical Journal Letters [2006] 639 : L43-L46 (M.E. Brown, M.A. van Dam, A.H.Bouchez, D.Le Mignant, R.D.Campbell, J.C.Y. Chin, A.Conrad, S.K.Hartman, E.M.Johansson, R.E.Lafon, D.L. Rabinowitz, P.J.Stomski Jr., D.M.Summers, C.A.Trujillo, P.L. Wizinowich)
However, surely they can't have all been looking through the same telescope at the same time when it was discovered ! Wouldn't the actual discoverer have been only one of them ? -- Franklin Demenge ( talk) 18:56, 9 August 2009 (UTC)
In the past, discoveries in astronomy would be made by lone astronomers such as Galileo by literally looking through their telescope. With some of the huge telescopes such as Hubble or those used by Keck do they still do things by this means, or are photographic images taken instead ? Is the actual discoverer of Eris and Dysnomia crediting the whole team merely in order to be nice, or are the whole team credited because observations using huge telescopes are largely done by technical means rather than actual visual discovery by just one of the astronomers ? -- Franklin Demenge ( talk) 10:40, 10 August 2009 (UTC)
[[:File:Leda2(moon).jpg|thumb|right|Tracking Leda.]]
For the reference, Franklin Demenge is a sockpuppet of General Tojo, also known as Keith Bridgeman, now blocked indef. Details at Wikipedia:Long term abuse/General Tojo. feydey ( talk) 20:18, 12 August 2009 (UTC)
Is there any clue or hint on how the temperature on Dysnomia is? Because I have to do a presentation about Trans Neptunian Objects for school and this is something I really need.. —Preceding unsigned comment added by 95.118.108.226 ( talk) 00:08, 14 October 2009 (UTC)
An IP editor added a line in the infobox for average orbital speed:
| avg_speed = 0.172 km/s [a]
Unfortunately it seems the reference 'calculated' is never defined, leading to a 'Cite error: The named reference calculated was invoked but never defined (see the help page).'. The information added looks like it could be right, but unfortunately I can find nowhere on the Internet a source for this. It looks like the anonymous editor calculated it from the other given orbital quantities. Is this something we do? Anon423 ( talk) 16:59, 5 November 2014 (UTC)
Hello fellow Wikipedians,
I have just modified one external link on Dysnomia (moon). Please take a moment to review my edit. If you have any questions, or need the bot to ignore the links, or the page altogether, please visit this simple FaQ for additional information. I made the following changes:
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This article mentions Michael Brown's claim that Dysnomia is fairly small. He's since changed his mind, and this paper should be cited and used to modify the properties section: https://arxiv.org/abs/1801.07221 134340Goat ( talk) 02:23, 23 January 2018 (UTC)
Do we know whether Dysnomia is or could be in hydrostatic equilibrium, rounded by its gravity? This image shows a spherical Dysnomia. 212.186.7.232 ( talk) 13:10, 27 April 2019 (UTC)
Cite error: There are <ref group=lower-alpha>
tags or {{efn}}
templates on this page, but the references will not show without a {{reflist|group=lower-alpha}}
template or {{notelist}}
template (see the
help page).
This
level-5 vital article is rated C-class on Wikipedia's
content assessment scale. It is of interest to the following WikiProjects: | ||||||||||||||
|
The content of this article is more or less a straight copy and paste from the main article. There doesn't seem a whole lot of point in doing that, so I've changed it back to a redirect. When so little is known about the moon anyway, it makes much more sense to discuss it in the main article.
File:2006-16-a-full.jpg 2003 UB313 and satellite: artist's impression | ||||
Discovery | ||||
---|---|---|---|---|
Discovered by |
Michael E. Brown (using the Keck Observatory) | |||
Discovered in | 10 September 2005 | |||
Orbital characteristics | ||||
Semi-major axis (a) | 30,000 - 36,000 km | |||
Eccentricity | ||||
Orbital period (P) | ~1da4 d | |||
Inclination | ||||
Parent body | 20as03 UB313 | |||
Physical characteristics | Mean diameter | 300 asd- 400 km | ||
Mass | ||||
Mean density | ||||
Rotation period | ||||
Axial tilt | ||||
Albedo | ||||
Surface temp. | ||||
Atmosphere | ||||
| ||||
This image would be nice:
" Xena"; " Ceres", " 1 Ceres".
Hilarious & silly.
Miles O'Brien [ Miles_O'Brien_(journalist) ], cnn, speaking with Neil deGrasse Tyson, announced this mnemonic:
"My Very Educated Mother Just Sent Us Nine Pizzas,..."
"Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune, Pluto,..."
Hopiakuta 20:43, 16 August 2006 (UTC)
Am I the only one that finds this choice of name ironic? Concidering that Xena was played by a Lucy Lawless? Perhaps... Hmm, did this maybe subconciously affect their decisions for the official name of the newly designated planet? -- Lucy (Not Lawless, just coincidence) 08:16, September 14, 2006 (UTC)
I suspect that Mike named them discord and lawlessness because of all the controversy surrounding them and their naming. This would need to be confirmed by Mike. Watch for interviews. Michaelbusch 15:59, 14 September 2006 (UTC)
Dysnomia is a memory disorder characterized by a marked difficulty in remembering names or recalling words needed for oral or written language. Uh... sorry, what was the name of this satellite again? -- mglg( talk) 17:46, 14 September 2006 (UTC)
Some articles talking about the coincidence: Dwarf Planet, Cause of Strife, Gains ‘the Perfect Name’ NY Times, Dwarf planets get new names astronomy.com, and here's one that quotes Brown: Eris, Goddess of Strife, Joins Solar System Amid Raucous Debate (The Planetary society) - but the quote isn't confirmed anywhere else Andjam 23:57, 16 September 2006 (UTC)
could someone fix the infobox? It's transparent..-- TheFEARgod ( listening) 20:43, 14 September 2006 (UTC)
After all, "Dysnomia" has no historic claim to the name (an argument, IMO flawed, made with 134340 Pluto), and we do have a redirect already at Dysnomia for the rare user looking for this obscure body. -- John Kenneth Fisher 22:24, 14 September 2006 (UTC)
The result of the proposal was No move Duja 10:44, 18 October 2006 (UTC)
Moon can be a confusing term -- Cat out 14:42, 12 October 2006 (UTC)
Moon is commonly used for natural satellites, there's no reason to use a more complicated term. – Alensha talk 16:58, 12 October 2006 (UTC)
The lead sentence is not necessary. It's not officially named "136199 Eris Dysnomia", it is named Dysnomia.
The article says, "the satellite was used to constrain the mass of Eris". What is the meaning of "constrain" in this sentence? Is is referring to constraint algorithms? Vsst 03:02, 15 July 2007 (UTC)
The text in Properties says "its diameter is estimated to be less than 150 km" and in the table it says "equatorial radius 175±75 km" (= equatorial diameter 350±150 km) - a clear misfit. So which is wrong ? —Preceding unsigned comment added by Allgaeuer ( talk • contribs) 23:42, 11 July 2008 (UTC)
I can't access the ref for the 2ary pronunciation. Is it really "dice-nomia", or is the y just long in the nickname Dy? kwami ( talk) 12:16, 29 September 2008 (UTC)
Where do the figures for eccentricity and inclination come from ? I have just read the reference fully, but there are no figures for eccentricity and inclination included in that reference. -- Franklin Demenge ( talk) 10:58, 3 August 2009 (UTC)
The figures are all there ! Thank you for the explanation. Is that document the same as "Science 316 (5831): 1585" or it is additional to "Science 316 (5831): 1585", i.e, only "Supporting Online Material" as it's described ? It gives figures for "Orbit 1" and "Orbit 2". Please explain why there are two orbits, and why only the figures for "Orbit 2" are stated on Wikipedia ? -- Franklin Demenge ( talk) 20:04, 3 August 2009 (UTC)
Thank you -- Franklin Demenge ( talk) 14:56, 4 August 2009 (UTC)
The adjective for Dysnomia is given as "Dysnomian". This is not referenced. Are adjectives for planets and moons decided by an Astronomy organisation, or are these adjectives taken from a particular dictionary ? -- Franklin Demenge ( talk) 18:07, 5 August 2009 (UTC)
I have collected together all of the data concerning Dysnomia from all the possible research references concerning Dysnomia. This is all that is known. Before adding any of it, I am leaving it here for a few days for possible discussion as I am not sure which of it to add. For some qualities the astronomers unusually gave two figures. I don't know what a few of the other figures mean. So I am not sure if some of the figures actually concern Dysnomia, or if they are merely figures explaining how they obtained the data concerning Dysnomia at the time.
Orbital characteristics
Orbital period [X2] : 15.772 ± 0.002 days or 15.774 ± 0.002 days
Inclination [X2] : 61.3 ± 0.7° or 142 ± 3°
Semi-major axis [X2] : 37430 ±140 km or 37,350 ±140 km
Eccentricity [X2] : < 0.010 or < 0.013
Longitude of ascending node [X2] : 139 ± 1° or 68 ± 3°
Mean anomaly [X2] : 328.6 ± 0.6° or 306.5 ± 1.3°
Argument of periapsis : unknown
Physical characteristics
Equatorial radius [X4] : ~ 50-125 km
Axial tilt (obliquity) [X2] : 78°
Others ?
Current sub-solar latitude [X2] : 39°
Year of vernal equinox [X2] : AD 2239.5 or AD 2126.5
Em [X2] : 339.3° or 251.3°
V magnitude [X3] : 18.8
Satellite fractional brightness [X3] : 1.9 ± 0.5 %
References
[X1] International Astronomical Union Circular [2006] 8747 (D.W.E. Green)
[X2] Science [2007] 316 (5831) : 1585 and Supporting Online Material (M.E.Brown, E.L.Schaller)
[X3] The Astrophysical Journal Letters [2006] 639 : L43-L46 (M.E. Brown, M.A. van Dam, A.H.Bouchez, D.Le Mignant, R.D.Campbell, J.C.Y. Chin, A.Conrad, S.K.Hartman, E.M.Johansson, R.E.Lafon, D.L. Rabinowitz, P.J.Stomski Jr., D.M.Summers, C.A.Trujillo, P.L. Wizinowich)
[X4] California Institute of Technology web site http://www.gps.caltech.edu/~mbrown/planetlila/moon/ (M.E.Brown)
--
Franklin Demenge (
talk) 18:38, 9 August 2009 (UTC)
CalRis ( talk) 10:18, 30 November 2011 (UTC): This matter is still unsettled. I believe that the table should either cite the values of both orbits or it should use rounded values instead. The current tables implies a false certainty. Rounded values might look like this:
Who discovered Dysnomia ? In the article it claims Mike Brown. In the info-box there are four names including his. The research paper describing the discovery gives the names of the whole team :
The Astrophysical Journal Letters [2006] 639 : L43-L46 (M.E. Brown, M.A. van Dam, A.H.Bouchez, D.Le Mignant, R.D.Campbell, J.C.Y. Chin, A.Conrad, S.K.Hartman, E.M.Johansson, R.E.Lafon, D.L. Rabinowitz, P.J.Stomski Jr., D.M.Summers, C.A.Trujillo, P.L. Wizinowich)
However, surely they can't have all been looking through the same telescope at the same time when it was discovered ! Wouldn't the actual discoverer have been only one of them ? -- Franklin Demenge ( talk) 18:56, 9 August 2009 (UTC)
In the past, discoveries in astronomy would be made by lone astronomers such as Galileo by literally looking through their telescope. With some of the huge telescopes such as Hubble or those used by Keck do they still do things by this means, or are photographic images taken instead ? Is the actual discoverer of Eris and Dysnomia crediting the whole team merely in order to be nice, or are the whole team credited because observations using huge telescopes are largely done by technical means rather than actual visual discovery by just one of the astronomers ? -- Franklin Demenge ( talk) 10:40, 10 August 2009 (UTC)
[[:File:Leda2(moon).jpg|thumb|right|Tracking Leda.]]
For the reference, Franklin Demenge is a sockpuppet of General Tojo, also known as Keith Bridgeman, now blocked indef. Details at Wikipedia:Long term abuse/General Tojo. feydey ( talk) 20:18, 12 August 2009 (UTC)
Is there any clue or hint on how the temperature on Dysnomia is? Because I have to do a presentation about Trans Neptunian Objects for school and this is something I really need.. —Preceding unsigned comment added by 95.118.108.226 ( talk) 00:08, 14 October 2009 (UTC)
An IP editor added a line in the infobox for average orbital speed:
| avg_speed = 0.172 km/s [a]
Unfortunately it seems the reference 'calculated' is never defined, leading to a 'Cite error: The named reference calculated was invoked but never defined (see the help page).'. The information added looks like it could be right, but unfortunately I can find nowhere on the Internet a source for this. It looks like the anonymous editor calculated it from the other given orbital quantities. Is this something we do? Anon423 ( talk) 16:59, 5 November 2014 (UTC)
Hello fellow Wikipedians,
I have just modified one external link on Dysnomia (moon). Please take a moment to review my edit. If you have any questions, or need the bot to ignore the links, or the page altogether, please visit this simple FaQ for additional information. I made the following changes:
When you have finished reviewing my changes, please set the checked parameter below to true or failed to let others know (documentation at {{
Sourcecheck}}
).
This message was posted before February 2018.
After February 2018, "External links modified" talk page sections are no longer generated or monitored by InternetArchiveBot. No special action is required regarding these talk page notices, other than
regular verification using the archive tool instructions below. Editors
have permission to delete these "External links modified" talk page sections if they want to de-clutter talk pages, but see the
RfC before doing mass systematic removals. This message is updated dynamically through the template {{
source check}}
(last update: 5 June 2024).
Cheers.— InternetArchiveBot ( Report bug) 07:03, 18 December 2016 (UTC)
This article mentions Michael Brown's claim that Dysnomia is fairly small. He's since changed his mind, and this paper should be cited and used to modify the properties section: https://arxiv.org/abs/1801.07221 134340Goat ( talk) 02:23, 23 January 2018 (UTC)
Do we know whether Dysnomia is or could be in hydrostatic equilibrium, rounded by its gravity? This image shows a spherical Dysnomia. 212.186.7.232 ( talk) 13:10, 27 April 2019 (UTC)
Cite error: There are <ref group=lower-alpha>
tags or {{efn}}
templates on this page, but the references will not show without a {{reflist|group=lower-alpha}}
template or {{notelist}}
template (see the
help page).