I don't know why, but apparently giving Earth a "real" designation seems to give me a better sense of objectivity. But we DID decide to to this, what kind of system would we use to name it? I'm hoping this: Body type: TP: terrestrial planet. GG: gas giant. BD: brown dwarf. PP: proto-planet. DP: dwarf planet. AS: asteroid. Life (L): 1 means yes, 0 means no. Civilization ©: 0 - 5. Please see Kardashev scale to see what value to put in this. If there is no civilization present, simply type "X" into it. First line: numbers 0-?: nearby galaxies. (0 is milky way, ? is farthest galaxy ever discovered. Second line: distance from star to galactic center. (Measured in lightyears.)(Should describe star's closest approach.) Sun = 26093.0109 Third line = Planet number. 1 is closest planet, ? is farthest. Earth = 3. (Optional: Moon: put a -a, b, c ,e, exc. beside the last bit of the designation. So: TP-L1-C0-0-26093-3.