Recent content by Levi Dash Card

Another question popped up as I've been going through the generation procedure for a new sector. So, to add a little flavor to my system generation, I've been rolling the standard age dice (D6x2 + D3-1 + d1000/1000 Gy) and, if it exceeds the MS lifespan for the Class V star, do a little...

Thread resurrection question: In a system with secondary stars, do planets whose orbits fall outside a secondary star orbit also orbit that star? I generally ignored a secondary star's mass and luminosity for systems where the primary has worlds both inside and outside its orbit; however, I...

The system I'm currently generating has a K7 V primary, with a M7 V secondary - and the secondary star has a companion that I rolled as a white dwarf. I don't have issues with age on this one (the dwarf's total age is less than the rolled primary age), but its mass is 4.5 times the M7. I'm sure...

Thanks! Yes, the span of the example system is 0.007, around an M9 V star of 0.093 solar masses. Even at a minimum 1.2x Spread per orbit, it's a tightly-packed system. Only two of my three gas giants had moons, and that totaled 5 between them (with one of those a ring) - three of the four moons...

What is the practical lower limit of MOR (p.76), with regards to a moon's orbit? I have a world with an HSML of 1.997, meaning MOR is -1. A negative MOR has the unique effect of a lower 2D-2 result creating a larger orbit than a higher 2D-2 result. (For my current world, a result of 0 provides...

Regarding Primordial Systems rules (p.226), is it safe to say that any terrestrial world or moon in a system that is less than 1 million years old will always be Size 0 or S? Is there a bias toward 0 or S in that regard? (My current binary system - O3 V primary with a B4 V close companion - has...

With low rolls on both composition and density, even an E world could have a gravity in the .7-.9 range (for a +1 Hab); the size also gives a +1 Hab, both of which would compensate for the -2 Hab from the tainted atmosphere. Hydro in a no penalty zone and a temperate climate would give you a 10...

I'm trying to decide between two worlds as the Mainworld for one of my systems. One is SAH = 696, with an H.7.8 taint, RR 7, and Hab 7. The other is SAH = CD9, with an H.6.8 taint, RR C, and Hab 5. Neither world has native sophonts. I'm split between the two (696 has a deadlier High O2 taint...

For the record, I only populate more detailed information (i.e., gravity, mass) for moons of Size 2 and larger. It's possible a Size 1 or S moon close to the parent world will have enough of a measurable effect on the world's rotation, but I have over 200 systems to build for my new pocket...

So, I was looking at hierarchies of tidal locks, and, after reading a little on the relative strengths of tidal pulls (in our case, Sol vs. Luna), I've devised a way to quantify relative pulls for determining the order of checking for the world's tidal lock. Here's what I wrote up for my own...

Got it. Thanks! (I'm sure I'll be back...)

And, just to pile on, is it a safe assumption (at the very least for the sake of simplicity), that when a terrestrial world and a moon are in a mutual 1:1 tidal lock, the moon's orbital period (and, thus, its rotational period) is changed to be equal to the parent world's rotational period?

Thanks for the clarification. I went with a DM+8 for G & H atmospheres to reflect that they start at an order of magnitude more oppressive than even extremely dense insidious atmospheres. I noticed today on p.105, a note on the Tidal Lock Status chart says to reroll an axial tilt of more than 3...

Question on modifiers for the Habitable Zones Regions chart on p.47 (pdf p.48): What DMs should we set for atmospheres G and H? I have a Size E world (a moon of a gas giant) in the HZCO +3.01 zone that ended up with an atmosphere of H. (I figured the atmospheric pressure at just over 2,000 bar.)...

Since I picked up the book, I've been using a spreadsheet to handle a limited number of calculations (i.e., those that don't rely heavily on dice rolls), using a Google doc to record each system's information...not sure I'm going to have any space on my Google Drive when I finish system number...