Two major issues with this calculation, which lead to the suggestion that a planet 'slightly smaller than Old Earth' could have a radius that is _larger_ than Earth's [admittedly, I'm ignoring the possibility that we don't live on Old Earth either, but that's really unlikely]:
First, that red & white scale bar in the lower right corner isn't. To scale, that is. The bar Himself inserted in the middle of the Markovian Sea is, but unfortunately we don't know if the scale is correct for the equator or for the latitude where it's drawn. Since the map is essentially a Mercator projection, that matters - a lot.
Second, if you inspect the edges carefully, it turns out that that map is incomplete: the east and west edges don't meet and the equator isn't centered north/south. So not only do we not know which latitude the scale bar is drawn for, we don't actually know what it's latitude is. Nor do we know the projected length of the equator of Safehold.
I ran a guestimate a while back that makes me think that the top edge could be the Safehold Arctic Circle, although the bottom would be well south of the Antarctic Circle. Unfortunately, I no longer recall what my input assumptions were, so that doesn't even count as informed speculation.
BTW, the suggestion that Kau-zhi must be a G6V is easy to prove: a G6 star in any of the higher luminosity classes would render any planet in a 300-day orbit uninhabitable.
dobriennm wrote:Think you mean
- Circumference of planet: 25390.9 miles or 40892.7 km based on a downloaded map width of 9555 pixels and a scale bar length of 715 pixels (1900 mile/3060 km).
- Diameter of planet: 8,082.2 miles or 13,007 km based on circumference above.
DaltonSpence wrote:.......
- Diameter of planet: 25390.9 miles or 40892.7 km based on a downloaded map width of 9555 pixels and a scale bar length of 715 pixels (1900 mile/3060 km).
..........