Talk:Plutino

message: Should the article contain some mention of the fact that Plutinos all have orbital periods around 247.5 years? The fact that they'd all have similar periods would be implied by the fact that they're in resonance, but might it be good to mention the approximate period just so the reader doesn't have to chase off to the Neptune article and multiply by 1.5, or into one of the individual plutino articles to find the period? Linguofreak 20:36, 24 August 2006 (UTC)
replies: text: Good idea. Deuar 09:28, 25 August 2006 (UTC)
thread_title:  Orbital period 

message: Excuse me, but "plutino" means "little Pluto". How can Pluto itself be a little Pluto? 209.247.22.199 00:43, 26 December 2006 (UTC)
replies: text: The "little pluto" translation into Italian is related to the etymology of the word. Its meaning has since moved on, and plutino no longer actually means "little pluto", but refers to a class of orbits. Deuar 14:33, 5 January 2007 (UTC)
thread_title:  Plutino 

message: Are there any generalizations of Plutinos that can be made, such as Orcus being the "anti-Pluto"? If it's only that one case, we can cover it at Orcus, with just a mention here; otherwise we should cover it in greatest detail here. — kwami (talk) 17:08, 19 September 2010 (UTC)
thread_title:  anti-Plutos 

message: I just removed two objects from the table ( and ), which according to Marc Buie and W. R. Johnston are not plutinos. Those are the only two objects I checked, so I suspect that many more of the objects in the table are not actually plutinos. The table should be thoroughly checked. I suspect that it needs to be remade from scratch. Renerpho (talk) 09:33, 3 November 2019 (UTC)
thread_title:  Many objects in table are not plutinos 

message: The table currently requires lots of additional citations. If we were to use Johnston as a single source, the table could look like this:
Object             	a(AU)	q(AU)	i(°)	H   	Diameter(km) 	Albedo	B-R 	Discoveryyear	Discoverer	Refs
(134340) Pluto     	39.9 	29.8 	17.1	-0.9	2375         	0.72  	1.34	1930         	          	
(90482) Orcus      	39.2 	30.3 	20.6	2.4 	910          	0.23  	1.05	2004         	          	
(28978) Ixion      	39.8 	30.1 	19.6	3.8 	617          	0.141 	1.64	2001         	          	
(208996) 2003 AZ84 	39.3 	32.1 	13.6	3.9 	723          	0.097 	1.04	2003         	          	
(84922) 2003 VS2   	39.2 	36.4 	14.8	4.2 	548          	0.123 	1.4 	2003         	          	
(455502) 2003 UZ413	39.2 	30.3 	12.1	4.4 	670          	0.07  	    	2003         	          	
2017 OF69          	39.7 	31.5 	13.7	4.5 	558 (assumed)	      	    	2017         	          	
2014 JP80          	39.7 	37   	19.3	5   	443 (assumed)	      	    	2014         	          	
2014 JR80          	39.7 	36.1 	15.3	5.1 	423 (assumed)	      	    	2014         	          	
(38628) Huya       	39.8 	28.6 	15.5	5.3 	406          	0.083 	1.54	2000         	          	
(444745) 2007 JF43 	39.6 	32.2 	15.1	5.3 	386 (assumed)	      	    	2007         	          	
(469987) 2006 HJ123	39.8 	27.6 	12.4	5.3 	216          	0.281 	    	2006         	          	
2002 XV93          	39.1 	34.3 	13.3	5.4 	549          	0.04  	1.09	2002         	          	
(469372) 2001 QF298	39.5 	35.2 	22.3	5.4 	408          	0.071 	1.01	2001         	          	
(307463) 2002 VU130	39   	30.8 	1.4 	5.5 	253          	0.179 	    	2002         	          	
(532092) 2013 HU156	39.8 	34.9 	20.8	5.5 	352 (assumed)	      	    	2011         	          	
(469421) 2001 XD255	39.2 	34.9 	18.2	5.5 	352 (assumed)	      	    	2001         	          	
(84719) 2002 VR128 	39.4 	28.9 	14  	5.6 	448          	0.052 	1.54	2002         	          	
(523768) 2014 WQ510	39.4 	33   	22.9	5.6 	336 (assumed)	      	    	2011         	          	
2010 EL139         	39.5 	36.9 	23  	5.6 	336 (assumed)	      	    	2010         	          	
(55638) 2002 VE95  	39.1 	27.9 	16.3	5.7 	250          	0.149 	1.79	2002         	          	
(533209) 2014 DR143	39.3 	27.8 	10.3	5.7 	321 (assumed)	      	    	2011         	          	
(523760) 2014 WQ509	39.1 	33.4 	9.8 	5.7 	321 (assumed)	      	    	2013         	          	
2011 UT410         	39.4 	32.5 	13.5	5.8 	306 (assumed)	      	    	2011         	          	
2013 CD223         	39.3 	30.3 	5.3 	5.8 	306 (assumed)	      	    	2013         	          	
(523655) 2011 VJ24 	39.4 	32   	9.5 	5.9 	293 (assumed)	      	    	2010         	          	
2007 JF45          	39.6 	36.3 	11  	5.9 	293 (assumed)	      	    	2007         	          	
2013 PX74          	39.8 	33.9 	7.8 	5.9 	293 (assumed)	      	    	2013         	          	
2014 MH70          	39.6 	33   	3.3 	5.9 	293 (assumed)	      	    	2014         	          	
2013 SP102         	39.4 	33.3 	11.6	6   	280 (assumed)	      	    	2013         	          	
Johnston doesn't list masses, it gives the B-R rather than the V-R colour index (because the B-R value is supposedly more useful for taxonomy), and it has no information about the discoverer. It also gives a single value for the diameter, with no information regarding uncertainties (assuming an albedo of 0.09 where no direct measurement is given). All of these could be added from different sources, if necessary. The big advantage of the Johnston list is that it includes a dynamical classification. Renerpho (talk) 07:34, 11 March 2021 (UTC)
thread_title:  Table update