Saturday, January 30, 2010
The Sun From Other Planets
This week I'm looking at what our Sun, Sol would look like from the "surface" of alien planets.
To answer this I've used Celestia yet again, to travel to exoplanet locations and see what Sol woul look like in their skies. As with last week, most of these planets are "hot Jupiters" and the concept of surface is problematic, so I've shown the view from orbit. From a hypothetical planet around alpha Centauri A, Sol is a bright magnitude 0.5 star (almost as bright as Acrux) situated between Perseus and Cassiopeia. I wonder how aliens would incorporate Sol into their mythology of the skies? Would they merge the constellations?
Sol from from Epsilon Eridani B, 10.5 light years away. Sol is a 2.3 magnitude star, moderately bright (like Gacrux, gamma Crucis), in the constellation of Serpens. It would fit right in.
Sol as seen from the super earth Gliese 581 d, 20 light years away. Sol is a faint, 3.8 magnitude star (like epsilon Crucis, the fifth, dimmer star of the Cross), between the highly distorted constellations of Taurus and Cetus.
-- Adrian, usually of the southern suburbs of Adelaide but presently visiting Melbourne.