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The Planets In Your Neighborhood

The Planets In Your Neighborhood published on 18 Comments on The Planets In Your Neighborhood

We did the constellations over our planets’ heads a while back. Now let’s zoom in and look at their home solar system!

Useless trivia of the day: this is a much-retooled version of a star system I originally made up for some Sailor Moon fanfiction. So that last panel features characters from 2016, wearing outfits that were designed in 2004, for characters originally invented in 1998.

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Órrinn | Drengr
Hot rocky planet. Surface has lava oceans. Possibly the core of a former superhot gas giant, its gaseous layers stripped away by intense solar wind.

The World | Earth
Habitable zone! Metallic core, silicate surface largely covered by ocean, tectonic plate activity. One major continent, so the weather is volatile.
The Moon | Huginn
The Moonlet | Muninn

Éagrinn | Veidhimadhr
Cold rocky planet, dense and heavy. Non-active core means no magnetic field; atmosphere is thin and getting thinner.

Racrinn | Gørsimi
Cold planet too carbon-rich for water to form. Graphite surface, diamond substratum, tectonic and volcanic activity, carbon smog clouds.

Mhuirinn | Dómari
Distant ice giant: rocky core, slushy fluid mantle, tons of atmosphere. Faint rings and a whole mess o’ moons.

Not shown: all the miscellaneous small bodies in the system. Lots of comets, asteroids, and iceballs.

Holly: This is our solar system! Sizes are to scale . . . distances are not. We live on the second of five planets from the sun.

Ceannis got our names for the planets from the ancient Gulf empire. The Ceannic language descends from proto-Gulf.

Up in the polar countries, the planets were associated with supernatural figures — Sønheim still uses those names, although nobody worships the deities these days.

Modern telescopes mean we’ve discovered a ton of new objects in just the past hundred years! New names get decided by our International Astronomical Union. They pick the names from a variety of traditions, and try to start as few fights as possible.

Any questions?

Rowan: I have one! Why are we dressed up for this? And who are we supposed to be?

Violet: Just roll with it.

18 Comments

How did the “former superhot gas giant” got so near the sun? It’s not like it could formed there … the solar wind was even WORSE at the time the planets were formed.

No idea, but there are plenty of hot Jupiters in our own universe, so we know it can happen somehow….

I suspect that Type II migration would clear the other planets on the way … although, we don’t know the distances. Perhaps it formed inside Earth’s orbit and then moved even closer and lost the atmosphere.

Nope, same problem as the first comment, if it’s Earth distance from the sun or closer it’s rocky. I’d say equal to or closer than the 4th planet as it’s the last gas giant, but both the 3rd and 4th planets are so dense they might very well have once been the cores of gas giants. 4th especially looks so with it’s size and diamonds, but 3rd being on as well explains it’s weight and core problem. Though the scale doesn’t seem super consistent so…

Again? Holly…

What’s the official language of their IAU? –> which set of planetary names should we treat as default?

Two orbiting satellites? Cripes, the tides on that planet must be crazy.

Future plot point ahoy!

Okay, 2 obvious lunar questions – are the moons asynchronous to each other, and are they coplanar? Asynchronous is sort of living dangerously, since that implies a potential for impact, while being non-coplanar adds some very interesting astrology potential XD

Eagrinn is freakin’ huge! Is that a super-Earth, or is L&T Earth particularly small, like, Mars-sized? If it is, the physics of water would be necessarily off, unless it’s also quite dense. Hm. I’m gonna go with Eagrinn is ballsingly huge.

It’s a super-Earth, all right. The World is Earth-like, so I don’t have to worry about extra differences in physics. (The weather and the tides are enough to think about.)

Is gravity the same for simplicity, or just not different in a way that you would notice visually? I have noticed a lack of really lanky non-vampires, so either your art style trends away from the extremes (likely), or you are deliberately portraying noticeably higher but not visibly higher gravity.

Yes, these are the things I think about.

Gravity is the same. The days are longer, but the years have fewer days, so I don’t have to do extra calculations over the ages.

The main characters tend toward being broad and muscly because of their jobs, or not-Hollywood-skinny for realism’s sake, that’s all. The vampires aren’t the only tall-and-slender ones.

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