I think [name_m]Saturn[/name_m] is cool !! Definitely a heavy name, but as long as you pair it with a more familiar middle name, I think it can work. You could do Sanny/Sunny as a nickname? or [name_f]Shay[/name_f]?
[name_m]Sylvanus[/name_m] is my favorite of your options. Nickname options Syl and [name_m]Van[/name_m]. Maybe even just [name_m]Sylvan[/name_m], without the -us, to avoid the unfortunate word the last 4 letters form. [name_m]Or[/name_m] Sylvanis.
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I know it’s not the right letters, but I could also see [name_m]Ivan[/name_m] as a nickname because the lower case L looks like the upper case I. [name_m]Or[/name_m] [name_m]Sly[/name_m].
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Unfortunately, [name_m]Saturn[/name_m] makes me think of the mythical god and this story and painting:
I like it. [name_m]Jupiter[/name_m] works, [name_m]Mars[/name_m] works, [name_f]Venus[/name_f] works [name_f][/name_f]- why not [name_m]Saturn[/name_m]?
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I’d say no to Urn as a nickname for obvious reasons. Urnie is borderline, but I think Sati/Satty is cute.
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I like how [name_m]Sylvanus[/name_m] sounds but I am not a fan of -anus.
Oh I love [name_m]Saturn[/name_m]! I love the previous suggestion of using [name_f]Sunny[/name_f] as a nickname, and I think Satty would work too. Maybe [name_m]Ren[/name_m] or [name_m]Turner[/name_m] as stretchy nicknames??
[name_m]Saturn[/name_m] is a bold choice. It fits your preferences, but pushes the boundaries a lot more than the rest of your list. Interestingly, I think it would be the most recognisable name on your list, it’s just that it’s used in a surprising context.
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I like [name_f]Sunny[/name_f] as a nickname and yet, I wonder if it’s a little on the nose in terms of the theme.
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I’d like to suggest [name_m]Art[/name_m], [name_m]Artie[/name_m], Sass, [name_f]Sassy[/name_f] and [name_m]Taz[/name_m] as nicknames.
[name_m]Saturn[/name_m] is distinctive and intriguing [name_f][/name_f]- kind of reminds me of more familiar choices like [name_m]Saxon[/name_m], [name_m]Samuel[/name_m], [name_m]Anton[/name_m], and [name_m]Ashton[/name_m] [name_f][/name_f]- while feeling celestial and mystical.
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I like the suggestions of [name_f]Sunny[/name_f] as a nickname. [name_f]Sasha[/name_f] and San came to mind as nicknames?
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I like [name_m]Sylvanus[/name_m] a lot out of your options!!
[name_m]Saturn[/name_m] is cool and interesting! I love space themed names and [name_m]Saturn[/name_m] is a beautiful planet. [name_m]Saturn[/name_m] is a very unexpected name, but I think it would work. It kind of reminds me of [name_m]Severin[/name_m]. It sounds calm but a bit nostalgic. [name_m]Saturn[/name_m] makes me imagine someone strong, elegant, intelligent and discreet. [name_f][/name_f]As nicknames, you may like San, Sant, Santy, Satu, [name_f]Sunny[/name_f], [name_m]Turin[/name_m], Attu, Aton, Tunes and [name_m]Astro[/name_m].
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I really like the name [name_m]Sylvanus[/name_m]! I also love [name_m]Sylvester[/name_m]. You may consider Silvinus. [name_f]Sunday[/name_f] would be cool as well.