Extreme Planets from StarGen

This page lists the most extreme habitable planets from a large test run of StarGen that created more than a half million systems, 10,000 of each of the 51 stars from the SolStation list of stars. The command used to create these systems was: 
% stargen -w -g -s1 -n10000 -i1 -v3 -2 -H -p Doubles/
 Terrestrial p=1012.86  m=1.00  g=1.00  t=-0.0  -s1 -W0   The Solar System 3
 Terrestrial p=1113.68  m=0.95  g=0.98  t=+0.7  -s5 -W5   Tau Ceti 4
 Terrestrial p=650.92   m=0.79  g=0.92  t=-5.5  -s12 -W12 82 Eridani 5
 Terrestrial p=2930.87  m=1.61  g=1.18  t=+3.3  -s24 -W24 Xi Ursae Majoris Ba 6
 Terrestrial p=2752.58  m=1.63  g=1.19  t=+4.3  -s26 -W26 Zeta Tucanae 5
 Terrestrial p=718.18   m=0.75  g=0.90  t=-6.8  -s41 -W41 Zeta 1 Reticuli 4
 Terrestrial p=422.93   m=0.60  g=0.84  t=-8.4  -s54 -W3  Epsilon Eridani 3
    [Lines deleted.]
System 508446 - Chi1 Orionis A (-s508446 -W27) has 2 planets with breathable atmospheres.
System 508820 - 47 Ursae Majoris (-s508820 -W44) has 2 planets with breathable atmospheres.
Earthlike planets: 10914
Breathable atmospheres: 71118
Breathable g range: 0.69 -  1.32
Terrestrial g range: 0.69 -  1.32
Breathable pressure range: 159.43 -  4190.76
Breathable temp range: -84.3 C -  +10.1 C

My original test run included one system with three planets with breathable atmospheres, but in the latest run one of those planets became too cold to support liquid water. I made two more runs starting with -s2 and -s3. In the third run, a system with 3 planets with breathable atmospheres showed up. Where the first system had one terrestrial and two martians, this one had three terrestrials. I've included it here, even though it took a million more systems to get it than the other systems on this page.

The lowest gravity planet with a breathable atmosphere
40 Eridani A
15 Planets (size proportional to Sqrt(Radius))
Sun Rock Rock Terrestrial Martian Ice Ice Sub-Jovian Jovian Jovian Martian Sub-Jovian Rock Rock Asteroids Asteroids See
Key
#3 Terrestrial: Low-G, Cold, Arid, Few clouds, Thin atmosphere (O2 - breathable)

The highest gravity planet with a breathable atmosphere
Gamma Leporis A
12 Planets (size proportional to Sqrt(Radius))
Sun Rock Rock Rock Terrestrial Jovian Ice Jovian Jovian Sub-Jovian Rock Rock Asteroids See
Key
#4 Terrestrial: High-G, Warm, Cloudy, Thick atmosphere (N2, He, O2 - breathable)

The planet with the thinest breathable atmosphere
Delta Pavonis
12 Planets (size proportional to Sqrt(Radius))
Sun Rock Rock Rock Terrestrial Terrestrial Ice Ice Jovian Jovian Jovian Sub-Jovian Rock See
Key
#4 Terrestrial: Low-G, Cool, Dry, Few clouds, Thin atmosphere (O2 - breathable)
#5 Terrestrial: Thick atmosphere (N2, O2 - unbreathable)

The planet with the thickest breathable atmosphere
Zeta Tucanae
13 Planets (size proportional to Sqrt(Radius))
Sun Rock Rock Rock Rock Terrestrial Rock Jovian Ice Jovian Jovian Jovian Sub-Jovian Rock See
Key
#5 Terrestrial: High-G, Warm, Wet, Cloudy, Thick atmosphere (N2, He, O2 - breathable)

The coldest planet with a breathable atmosphere
BD-05 1123 (HR 1614) A
10 Planets (size proportional to Sqrt(Radius))
Sun Rock Rock Ice Martian Ice GasDwarf Jovian Rock Jovian Sub-Jovian See
Key
#3 Ice: Low-G, Cold, Icy, Arid, Cloudless, Thin atmosphere (N2, O2 - breathable)

The hotest planet with a breathable atmosphere
Pi3 Orionis A
11 Planets (size proportional to Sqrt(Radius))
Sun Rock Rock Rock Venusian Terrestrial Jovian Jovian Jovian Jovian Sub-Jovian Rock See
Key
#5 Terrestrial: High-G, Hot, Cloudy, Thick atmosphere (N2, O2 - breathable)

The largest all-water planet with a breathable atmosphere
Alpha Mensae
11 Planets (size proportional to Sqrt(Radius))
Sun Rock Rock Rock Water Ice Jovian Jovian Jovian Jovian Rock Rock See
Key
#4 Water: High-G, Cloudy, Thick atmosphere (He, N2, O2 - breathable)

A system with 3 planets with breathable atmospheres
Chi1 Orionis A
5 Planets (size proportional to Sqrt(Radius))
Sun Rock Rock Terrestrial Terrestrial Terrestrial See
Key
#3 Terrestrial: Thin atmosphere (N2, O2 - breathable)
#4 Terrestrial: Thick atmosphere (N2, O2 - breathable)
#5 Terrestrial: Cold, Few clouds (N2, O2 - breathable)

This page was created by StarGen.