Posts by Rúnatál Davino
I'm building a very small homeworld (0.602 M$_e$) with a very large moon (0.0711 M$_e$) that orbit each other at a barycenter about 7.12 planetary radii (1 R = 0.870 R$_e$) from the primary's cente...
Though my star is 1.71 LSol, my planet orbits at about 2.14 AU. Following a back-of-the-envelope equation for apparent brightness, this gives the surface of my planet approximately 30% of Sol's lig...
I thought that a large, close moon might help generate enough heat and stress to raise the average temperature on my world and stave off a Snowball Earth scenario. According to this article and thi...
Still working on that world with with a 93% ocean covering. My star Xat is 1.71 LSol, and my planet Jasmi orbits at 2.14 AU. I've been warned that the resulting apparent brightness of about 37% Sol...
I need to heat my planet and I've decided that the two most plausible and controllable ways to do so are by increasing the amount of bombardment by meteoroids from a nearby asteroid belt, and by ti...
1 degree of latitude = 96.57 km. Equirectangular projections. (Yes, I need to revise the polar regions to make sure they don't get squished.) Obliquity of Jasmi: +31.1 degrees. Radius of Jasm...
My planet Jasmi is 0.602 MEarth and, according to the wonderful u/shagomir's Planet Calculator Pro spreadsheet, I need to retain enough gas for just over 5 atm of pressure at sea level for a suitab...
My planet Mass = 0.602 MEarth Radius = 0.870 REarth Density = 5.04 g/cm3 vesc = 9.3 km/s Temperature = 272 K My atmosphere 74.84% N2 22.04% O2 1.38% CH4 1.25% Ar 0.27% H2O 0.11% CO2 Mo...
I have been told that the high proportion of O2 and CH4 in my atmosphere are unsustainable unless constantly refreshed by an active process. I would like to sustain the following atmospheric compo...
So, my climates are extreme due to a 31.1 degree axial tilt. The maps provided show a climate classification system based on prevailing winds and elevation. Based on Reddit user u/shagomir's Plane...
First, specifying format in this question I will be giving temperature ranges that sometimes appear backwards. This is because I am listing average temperature ranges from southern to northern lat...
I'm trying to calculate the solar declination at the solstices, solar altitude at solar noon, and hour angles at sunrise and sunset to build a standing stone calendar at latitude 53.8 degrees South...
I am trying to construct a standing stone calendar for my world Jasmi, located at latitude 53.8 degrees South. To do this, I need the hour angle of moonrise and moonset for my world. The problem is...
