Starship Asterisk*

[quote=johnnydeep post_id=339421 time=1717267319 user_id=132061]
Ok, can anyone explain to me why exactly it is that Helene is so "appropriate named"? I get from the links that it's something to do with John Herschel suggesting that the moons of Saturn be associated with mythical brothers and sisters of Cronus/Cronos/Kronos/Saturn; Trojan satellites and the Trojan war and Helen of Troy and that Helene is supposedly a granddaughter of Cronos and sister of Polydeuces, but why Helene particularly? I'm also having trouble pinning down an accurate genealogy of Cronos. Though this one looked promising, Helene is nowhere to be found:


[img2]https://ludios.org/greekgods/greek-tree-full.png[/img2]
[/quote]
Hard to say but [url=https://en.wikipedia.org/wiki/Helene_(moon)#:~:text=In%201988%20it%20was%20officially,Lagrangian%20point%20(L4).] Helene[/url] may be Zeus’s [url=https://en.wikipedia.org/wiki/Nemesis] Nemesis[/url] that led to a [url=https://en.wikipedia.org/wiki/Swan_song] swan song[/url]. :?

That eventually morphed into one of my [url=https://en.wikipedia.org/wiki/Cygnus_(constellation)] favorite constellations[/url]. :thumb_up:

Ok, can anyone explain to me why exactly it is that Helene is so "appropriate named"? I get from the links that it's something to do with John Herschel suggesting that the moons of Saturn be associated with mythical brothers and sisters of Cronus/Cronos/Kronos/Saturn; Trojan satellites and the Trojan war and Helen of Troy and that Helene is supposedly a granddaughter of Cronos and sister of Polydeuces, but why Helene particularly? I'm also having trouble pinning down an accurate genealogy of Cronos. Though this one looked promising, Helene is nowhere to be found:


[img2]https://ludios.org/greekgods/greek-tree-full.png[/img2]

[url=https://apod.nasa.gov/apod/ap240601.html] [img]https://apod.nasa.gov/apod/calendar/S_240601.jpg[/img] [size=150]Stereo Helene[/size][/url]

[b] Explanation: [/b] Get out your red/blue glasses and float next to Helene, small, icy moon of Saturn. [url=https://solarsystem.nasa.gov/moons/saturn-moons/helene/in-depth/]Appropriately named, Helene[/url] is a Trojan moon, so called because it orbits at a [url=https://science.nasa.gov/resource/what-is-a-lagrange-point/]Lagrange point[/url]. A Lagrange point is a gravitationally stable position near two massive bodies, in this case [url=https://solarsystem.nasa.gov/moons/saturn-moons/overview/]Saturn and larger moon Dione[/url]. In fact, irregularly shaped ( about 36 by 32 by 30 kilometers) Helene orbits at Dione's leading Lagrange point while brotherly ice moon Polydeuces follows at Dione's trailing Lagrange point. [url=http://space-3d-images.blogspot.com/2011/06/helene-3d-cassini-cattura-la-regina-del.html]The sharp stereo anaglyph[/url] was constructed from two Cassini images captured during [url=https://solarsystem.nasa.gov/missions/cassini/overview/]a close flyby[/url] in 2011. It shows part of the Saturn-facing hemisphere of Helene mottled with craters and gully-like features.


[table][tr][td=left][url=https://asterisk.apod.com/discuss_apod.php?date=240531][b]<< Previous APOD[/b][/url][/td] [td=center][url=https://asterisk.apod.com/view_retro.php?date=0601][b]This Day in APOD[/b][/url][/td] [td=right][url=https://asterisk.apod.com/discuss_apod.php?date=240602][b]Next APOD >>[/b][/url][/td][/tr][/table]