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Talk:Planet Nine

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that, I don't think I would personally bother sourcing any of these, even if they may technically be WP:RS. All of them are just citing the pre-print anyway and the pre-print will eventually pass peer review, and is less likely to be a dead link in 10 years than the random science interest sites. So, if it were me, I'd either 1) cite the pre-print directly, as the likelihood of it being rejected in peer review is incredibly low and anyway the articles in question are citing the same information, forcing a retraction by WP in either case or 2) wait until it passes peer review and then cite it.
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looking at in 2018'”, but I'm pretty sure the author misunderstood Green. I've seen Mike Brown explain multiple times on Twitter that JWST's small field-of-view makes it worthless for finding Planet Nine, but if and when it is found by some wide-angle telescope like Subaru or Rubin, then a top priority will be pointing JWST at it to get a better look.
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Hi there, I actually found out about this precisely because there are a lot of secondary sources reporting on it (I'll include a few here for the purposes of discussion, but if you search for "Planet Nine" on Google with the time criteria set to "within the last month", you'll find many). Having said
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some image and video materials on IPAC public web sites are owned by organizations other than Caltech, JPL, or NASA. These owners have agreed to make their images and video available for journalistic, educational, and personal uses, but restrictions are placed on commercial uses. To obtain permission
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That's actually great then. Seems like the primary is getting plenty of secondary references; atp I think it's good as a source for the article. Id say find the references of highest journalistic quality and then either start adding to the article or post them here for another to add (I am more than
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I fall back on my original reasoning. It's a pitch black blob. I'm fairly sure Planet Nine is not a pitch black blob. From the position of the sun we'd expect to see a significant crescent (and maybe a hint of atmosphere) so even by its own limited standard this is not an accurate representation of
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The sentence was added back in '18 when it seemed like there was going to be a short search and then BAM it got found. Clearly, three years later, we're still waiting, so I would have no issue with removing the statement. If and when an observation is announced, we can obviously update the article.
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if it’s been discussed since 2016, then I think that helps to make my point, that it is is not obviously encyclopedic. A black disc against an unlikely background of stars could be an image of anything – planet Zog or the Death Star. Put it like this – it’s unreferenced and just something somebody
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We present a search for Planet Nine using the second data release of the Pan-STARRS1 survey. We rule out the existence of a Planet Nine with the characteristics of that predicted in Brown & Batygin (2021) to a 50% completion depth of V = 21.5. This survey, along with previous analyses of the
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says "Jim Green, director of NASA’s Planetary Science Division ... is optimistic that if Planet X is out there, NASA’s James Webb Space Telescope, expected to launch into space in 2018, could find it. The large infrared telescope is Hubble’s successor. 'If these guys are right, we’re going to be
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that surprisingly finds that the MOND gravity model could explain the observed clustering. The clustering would be the effect not of a planet but of the galactic core under a revised model of gravity. Once this paper is published somewhere, I think it definitely needs to be added to the article
855:-- The source for this is from 2017, so this is almost certainly outdated. I suggest to either update (with the results of their search), rephrase (use past tense), or remove the sentence as irrelevant (do we really care what some students planned to maybe do, but didn't, half a decade ago?). 1356:
We've been having discussions about the infobox image since 2016, and so far consensus has held to use the current image (or to be pedantic, there has not been a consensus to change the image). I don't particularly have an opinion on the substance of the question, but it shouldn't be removed
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This is a mountain of a molehill. A black blob is hyperbole. We will have nothing for decades or more to represent Planet 9 accurately, if ever. I rather like the obscurity, because it emphasizes the enigma that its appearance is unknown, and it remains elusive and difficult to detect. It's
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This sounds like good info and the preprint is solid but I don’t think it counts as a reliable secondary source yet. If you can find something else that cites it, that might be a stronger reference. Either way this is definitely relevant to the article and should probably be included.
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So what's next? Together w/ Gabe Pichierri, a postdoc in my group at @Caltech, we are working on the next generation of P9 models with an eye towards the wealth of data soon to come from Vera Rubin Obs. While I won't share specifics yet, exciting results are on the horizon.
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appearance is all speculation. A blue blob, a highly detailed red blob, it doesn't matter. None of it will be correct, and it's possible Planet 9 doesn't exist. Change it back to the original image if you prefer, but it too, is a black blob that I'm perfectly happy with.
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This is a hypothesis discrete from Planet Nine. While it's similar in that it's a hypothesized planet beyond Neptune explaining the orbits of objects like Sedna, it's different enough that it's considered a hypothesis entirely separate. See the last paragraph on page 3.
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By the way, if the image has actually been discussed since 2016, and has not been removed, that shows it's not obviously UNencyclopedic, otherwise it would be long gone. That's why I asked for a link to the discussion at the FAC, which I haven't been able to find.
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However, if this file will in fact be uploaded to Commons and used here as lead image, I would like to wipe out the bright clouds on the night side shown there, as long as the article does not mention any serious theories presuming the existence of such clouds. --
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for commercial use, contact the copyright owner listed in each image caption and/or credit. Ownership of images and video by parties other than Caltech, JPL, and NASA is noted in the caption material and/or image credit with each image.
1540: 1823: 1475: 727:, with two citations given for this - one from 2017, one from 2018. How are these citations relevant for the claim? Of course it's true that no observations of P9 were announced, but the references seem to be out of place. 1174:
Probably predictions what exactly Vera Rubin's limits should be, and how likely it is to find P9 (if it exists). We have something to look forward to in the coming months, and in anticipation of first light at Vera Rubin!
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There's precedent on this article for citing pre-prints btw. B&B papers on this subject don't generally get rejected and this one isn't making any bombshell claims (fundamentally, it's still "We haven't found Planet
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I couldn't find published results in my search, but maybe somebody else could. We should not assume they completed these tasks. I recommend deleting this sentence if a published result is not found.
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weird planet made of vantablack? Speculation - I’m pretty sure Brown didn’t say it looked like this! Also, totally uninformative and i encyclopaedic. What are readers to gain from this black blob?
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That Brown&Mathur paper, which was uploaded to Arxiv in April, has to share the credit with Migaszewski's, which was accepted for publication in MNRAS in July and uploaded to Arxiv in March.
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seem to include any discussion of the image. FAC2 mentions it in a single sentence, no discussion (just saying "it seems fine"), nothing that addresses Andyjsmith's rationale to remove it.
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I don't know if I agree with Andyjsmith, but an unencyclopedic image is certainly a good reason for removal, and we often shy away from using artistic impressions for that very reason.
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I think I may have said a long while ago this is pointless as of course until it has been seen its not been seen. I do not think we need this, as it will need to be updated every month.
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Zwicky Transient Facility (ZTF) and Dark Energy Survey (DES) data, rules out 78% of the Brown & Batygin parameter space. Much of the remaining parameter space is at V : -->
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they will offset the images to account for the calculated motion of Planet Nine, allowing many faint images of a faint moving object to be combined to produce a brighter image.
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should be operational by late 2024. Wait until it has collected data for a few years, then ask again. Brown himself has said that this was the ultimate test of the hypothesis.
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I see some Feb 2023 articles suggesting that it may be possible to search for heat signatures of P9 satellites. Is this worth adding? What about the proposed JWST survey?
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There is an arXiv pre-print published January 31st 2024 giving new information on the search, some of which has already been reported in the popular astronomy press.
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Well, it's useful to say that is an artists impression, and the article should have a lead image. If not this one then we should discuss replacing it with another.
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I'd even go as far as to suggest to remove the whole article. This is all WAY too speculative to warrant such a long article for something nobody ever observed ...
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anything. I got DALL-E to create a fairly rubbish image that makes my point. I couldn't get the sun far enough away, which would have made the crescent bigger.
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It looks to me like the interest in the search for P9 has decreased considerably, and only Rubin can really change things right now. To quote Brown again (
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https://www.livescience.com/space/planets/astronomers-narrow-down-where-planet-nine-could-be-hiding-by-playing-massive-game-of-connect-the-dots
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So, I'm kind of busy with school and work. Is there a volunteer who will update the article with the MOND theory? This seems important.
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I am not entirely convinced. We can see numerous suns all over the place, yet nobody could detect "Planet Nine". That seems weird to me.
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I don't see an indication that Hurt's image isn't copyrighted. That it's used by others doesn't help if NASA isn't the original creator.
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I think it is very problematic. Right now this is "vaporware" - without verification I am not even sure it should be part of wikipedia.
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Couldn't disagree more. The scientists studying these phenomena know much more than us and the sources are high quality.
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Quote from Brown&Mathur: "Accepted at the Astronomical Journal. Complementary to the findings of Migaszewski"
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They are named references and may be needed elsewhere. I suggest removing them to the {reflist} at the bottom.
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and plenty of news media, with credits to "Caltech/R. Hurt (IPAC)" - that's a proper astronomer with his own
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Konstantin Batygin has just posted a thread on Twitter/X where he discusses the new Lykawka & Ito paper,
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I have to say, as we do not even know it exists I am unsure if any artist's impression is encyclopedic.
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Does that apply to Robert Hurt, who represents IPAC? If not then we could probably use that image.
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That something was written by an expert is not a reason to mention it in a Knowledge article. See
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doesn't mention it either. If I miss where the discussion took place then please point me to it.
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This article was the subject of a Wiki Education Foundation-supported course assignment, between
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An alternative “flavor” of the Planet Nine hypothesis that Brown concedes is that it’s actually
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21 in regions near and in the area where the northern galactic plane crosses the ecliptic.
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Simply another iteration of a trans-Neptunian planet hypothesis, of which there are many.
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I agree, it is pointless. Any objections to removing the sentence altogether? Jehochman?
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commons:Commons:Deletion requests/File:Planet-Nine-in-Outer-Space-artistic-depiction.jpg
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This is a serious question. The article needs an update about recent efforts (perhaps).
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Suns emit light, so they are easier to see than planets, which only reflect light. --
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https://www.universetoday.com/165774/theres-one-last-place-planet-9-could-be-hiding/
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New aticle on arxiv shows that many of the eTNOs are affected by Neptune resonaces
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Pages within the scope of WikiProject Astronomical objects (WP Astronomy Banner)
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Orbital dynamics landscape near the most distant known trans-Neptunian objects
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https://www.independent.co.uk/space/nine-planet-solar-system-b2500389.html
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Done. I removed "Perdelwitz_etal_2018", as it was not used anywhere else.
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No can do, unfortunately, as it's already been tried and deleted (see
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As of November 2021, no observation of Planet Nine had been announced
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has recently removed the image from the infobox, with the rationale
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Is anyone’s still searching for Planet Nine or have they given up?
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because it’s a major new explanation for the observed phenomena.
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There are many more of these, of varying journalistic quality.
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A news item involving this article was featured on Knowledge's
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Michael Medford and Danny Goldstein, graduate students at the
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and announces that he is working on a new Planet Nine paper:
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Featured articles that have appeared on the main page once
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What are you referring to as "the proposed JWST survey"?
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Knowledge level-5 vital articles in Physical sciences
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Featured articles that have appeared on the main page
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Wiki Education Foundation-supported course assignment
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1243: 1242: 1241: 1240: 1239: 1236: 1225: 1221: 1217: 1214: 1211: 1206: 1201: 1200: 1199: 1196: 1191: 1188: 1187: 1186: 1182: 1178: 1165: 1162: 1157: 1152: 1151: 1150: 1149: 1145: 1141: 1137: 1133: 1130: 1124: 1120: 1116: 1111: 1110: 1109: 1108: 1105: 1103: 1099: 1097: 1091: 1081: 1077: 1073: 1068: 1064: 1061: 1060: 1059: 1056: 1052: 1051: 1050: 1045: 1041: 1037: 1033: 1029: 1024: 1022: 1019: 1015: 1014: 1013: 1012: 1009: 999: 998: 994: 990: 986: 968: 964: 960: 956: 952: 948: 944: 940: 936: 935: 934: 930: 926: 922: 921: 920: 916: 912: 908: 907: 906: 902: 898: 894: 893: 892: 889: 885: 884: 881: 877: 873: 869: 868: 867: 866: 862: 858: 854: 852: 851:supercomputer 848: 830: 826: 822: 818: 817: 816: 812: 808: 804: 803: 802: 799: 795: 789: 785: 781: 776: 775: 774: 770: 766: 760: 755: 754: 753: 749: 745: 741: 740: 739: 738: 734: 730: 726: 716: 714: 710: 706: 702: 696: 694: 690: 677: 661: 658: 656: 653: 651: 648: 647: 646: 645: 641: 640: 637: 634: 618: 615:(assessed as 614: 613: 603: 599: 598: 594: 590: 589: 579: 575: 574: 570: 566: 560: 557: 556: 553: 537:on Knowledge. 536: 532: 531: 523: 512: 510: 507: 503: 502: 498: 491: 487: 482: 479: 476: 472: 471: 467: 463: 457: 449: 448: 438: 434: 429: 428: 417: 412: 408: 404: 402: 396: 391: 386: 382: 380: 379: 375: 372: 368: 367: 363: 361: 360: 356: 353: 349: 348: 344: 342: 341: 337: 334: 333:July 29, 2016 330: 329: 325: 322: 319: 318: 312: 306: 302: 298: 294: 291: 287: 286: 282: 278: 274: 273: 268: 264: 261: 258: 254: 253: 234: 233: 228: 224: 216: 212: 208: 204: 200: 196: 192: 189: 187: 183: 182: 177: 173: 170: 167: 163: 159: 155: 152: 149: 146: 143: 140: 137: 134: 131: 127: 124: 123:Find sources: 120: 119: 111: 110:Verifiability 108: 106: 103: 101: 98: 97: 96: 87: 83: 81: 78: 76: 72: 69: 67: 64: 63: 57: 53: 52:Learn to edit 49: 46: 41: 40: 37: 36: 32: 26: 22: 18: 17: 1730: 1605: 1595: 1580: 1521:Slatersteven 1498:Slatersteven 1454: 1340: 1325: 1319: 1309: 1304: 1251: 1232: 1127: 1092: 1088: 1005: 982: 872:Slatersteven 844: 842: 759:Slatersteven 744:Slatersteven 724: 722: 697: 673: 655:Citation bot 635: 632: 610: 586: 564: 528: 490:Solar System 462:WikiProjects 445: 415: 398: 376: 364:Not promoted 357: 338: 281:please do so 270: 262: 222: 184: 171: 165: 157: 150: 144: 138: 132: 122: 94: 19:This is the 1271:1.38.103.24 959:Hob Gadling 939:Hob Gadling 693:Aaronfawley 401:In the news 263:Planet Nine 148:free images 31:not a forum 25:Planet Nine 1748:Categories 1725:2404.11594 1719:New paper 1596:Abstract: 1591:arXiv link 1548:Andyjsmith 1400:Andyjsmith 1396:WP article 1374:Andyjsmith 1306:Andyjsmith 1265:Oort Cloud 1115:134340Goat 1067:one source 719:References 685:8 May 2019 405:column on 272:identified 1563:Leitmotiv 1512:Jehochman 1316:Jehochman 1235:Jehochman 1205:Jehochman 1195:Jehochman 1156:Jehochman 1055:Jehochman 1018:Jehochman 1008:Jehochman 1002:Giving up 911:Leitmotiv 888:Jehochman 839:Outdated? 798:Jehochman 540:Astronomy 535:Astronomy 481:Astronomy 450:is rated 395:Main Page 88:if needed 71:Be polite 21:talk page 1686:Eniagrom 1607:Eniagrom 1480:Primefac 1460:Renerpho 1437:Renerpho 1359:Primefac 1343:Renerpho 1287:ArkHyena 1216:Renerpho 1177:Renerpho 1140:Renerpho 1072:Birdfern 1028:Headbomb 989:Agmartin 857:Renerpho 807:Renerpho 780:Primefac 765:Renerpho 729:Renerpho 705:PrimeBOT 650:Analysis 452:FA-class 383:Promoted 186:Archives 56:get help 29:This is 27:article. 1650:Nine"). 1417:Karl432 1095:Serendi 642:Toolbox 567:on the 397:in the 323:Process 223:60 days 154:WP refs 142:scholar 1065:I see 458:scale. 345:Listed 326:Result 126:Google 1721:arXiv 955:WP:RS 439:This 265:is a 169:JSTOR 130:books 84:Seek 1736:talk 1705:talk 1690:talk 1627:talk 1611:talk 1567:talk 1552:talk 1525:talk 1502:talk 1484:talk 1464:talk 1441:talk 1421:talk 1404:talk 1392:NASA 1388:this 1378:talk 1363:talk 1347:talk 1332:FAC2 1330:nor 1328:FAC1 1291:talk 1275:talk 1220:talk 1181:talk 1144:talk 1119:talk 1076:talk 993:talk 963:talk 957:. -- 943:talk 929:talk 915:talk 901:talk 876:talk 861:talk 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