Talk:Cart'hen system: Difference between revisions
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I'll correct my edit comment. I read "radius", not "diameter" for some reason. Cart'hen II's a lot smaller than [[wp:Pluto|Pluto]] and [[wp:Eris (dwarf planet)|Eris]], is probably more comparable in size to [[wp:Charon (moon)|Charon]] or [[wp:50000 Quaoar|Quaoar]] which are both Dwarf Planet candidates. The former is currently considered Pluto's largest moon. | I'll correct my edit comment. I read "radius", not "diameter" for some reason. Cart'hen II's a lot smaller than [[wp:Pluto|Pluto]] and [[wp:Eris (dwarf planet)|Eris]], is probably more comparable in size to [[wp:Charon (moon)|Charon]] or [[wp:50000 Quaoar|Quaoar]] which are both Dwarf Planet candidates. The former is currently considered Pluto's largest moon. | ||
The rereading also brings Cart'hen III into doubt. A diameter of 4378km puts that planet in the same ball park as [[wp:Callisto (moon)|Callisto]] (Jupiters' second largest moon) and [[wp:Mercury (planet)|Mercury]], both have diameters in the 4800-4900km range. Density lacks a unit of measurement, but assuming it is g/cm³, that makes it more dense than any of the | The rereading also brings Cart'hen III into doubt. A diameter of 4378km puts that planet in the same ball park as [[wp:Callisto (moon)|Callisto]] (Jupiters' second largest moon) and [[wp:Mercury (planet)|Mercury]], both have diameters in the 4800-4900km range. Density lacks a unit of measurement, but assuming it is g/cm³, that makes it more dense than any of the [[wp:Terrestrial planet|terrestrial planets]] in our solar system (all under 5.6). Surface gravity can be calculated using other stats using a formula found at [[wp:List of Solar System objects by surface gravity|List of Solar System objects by surface gravity]]. I've not tried checking that one myself. - [[User:Salak|<font color="maroon">Lt. Salak</font>]] (Amateur Astronomer)<sup><i>[[User talk:Salak|Talk]]</i></sup> 04:21, 4 March 2008 (CST) | ||
Revision as of 10:24, 4 March 2008
I'll correct my edit comment. I read "radius", not "diameter" for some reason. Cart'hen II's a lot smaller than Pluto and Eris, is probably more comparable in size to Charon or Quaoar which are both Dwarf Planet candidates. The former is currently considered Pluto's largest moon.
The rereading also brings Cart'hen III into doubt. A diameter of 4378km puts that planet in the same ball park as Callisto (Jupiters' second largest moon) and Mercury, both have diameters in the 4800-4900km range. Density lacks a unit of measurement, but assuming it is g/cm³, that makes it more dense than any of the terrestrial planets in our solar system (all under 5.6). Surface gravity can be calculated using other stats using a formula found at List of Solar System objects by surface gravity. I've not tried checking that one myself. - Lt. Salak (Amateur Astronomer)Talk 04:21, 4 March 2008 (CST)