🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.3 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.6 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.34

Radius: 1.41

Gravity: 1.18 G

Time & Orbit

Eccentricity (e): 0.083

Orbit Range: 0.55 AU - 0.65 AU

Year: 300 Days

Day: 30.4 Hours

Environment

Temp: -118 °C

Axial Tilt: 14.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 53,178,678 km

• M1: 32,912 km (0.096 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.03 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 694.8

Radius: 14.5

Gravity: 3.3 G

Time & Orbit

Eccentricity (e): 0.085

Orbit Range: 0.94 AU - 1.12 AU

Year: 675 Days

Day: 9.1 Hours

Environment

Temp: -163 °C

Axial Tilt: 3.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 53,178,678 km

• M1: 180,265 km (0.089 R)
• M2: 714,180 km (0.026 R)
• M3: 1,227,750 km (0.054 R)
• M4: 2,225,867 km (0.108 R)
• M5: 2,914,615 km (0.106 R)
• M6: 3,459,152 km (0.093 R)
• M7: 4,706,947 km (0.089 R)
• M8: 6,217,138 km (0.079 R)
• M9: 6,786,657 km (0.103 R)
• M10: 7,346,452 km (0.12 R)
• M11: 7,820,977 km (0.096 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.49 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 94.9

Radius: 10.5

Gravity: 0.86 G

Time & Orbit

Eccentricity (e): 0.151

Orbit Range: 1.27 AU - 1.71 AU

Year: 1174 Days

Day: 12.7 Hours

Environment

Temp: -179 °C

Axial Tilt: 48.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 53,178,678 km

• M1: 137,331 km (0.105 R)
• M2: 646,712 km (0.116 R)
• M3: 1,041,500 km (0.085 R)
• M4: 1,772,735 km (0.111 R)
• M5: 3,961,202 km (0.052 R)
• M6: 5,826,538 km (0.081 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.01 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 692.6

Radius: 10.2

Gravity: 6.66 G

Time & Orbit

Eccentricity (e): 0.129

Orbit Range: 1.75 AU - 2.27 AU

Year: 1840 Days

Day: 9.1 Hours

Environment

Temp: -199 °C

Axial Tilt: 34.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 53,178,678 km

• M1: 127,009 km (0.077 R)
• M2: 469,289 km (0.08 R)
• M3: 927,956 km (0.115 R)
• M4: 1,514,828 km (0.057 R)
• M5: 1,877,004 km (0.115 R)
• M6: 2,896,215 km (0.119 R)
• M7: 3,823,572 km (0.045 R)
• M8: 4,425,105 km (0.049 R)
• M9: 5,175,937 km (0.106 R)
• M10: 6,433,008 km (0.101 R)
• M11: 7,424,094 km (0.119 R)
• M12: 13,741,462 km (0.097 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.14 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 998.9

Radius: 13.5

Gravity: 5.48 G

Time & Orbit

Eccentricity (e): 0.152

Orbit Range: 2.66 AU - 3.62 AU

Year: 3593 Days

Day: 13.9 Hours

Environment

Temp: -195 °C

Axial Tilt: 17 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 53,178,678 km

• M1: 167,998 km (0.091 R)
• M2: 687,552 km (0.093 R)
• M3: 1,441,675 km (0.118 R)
• M4: 2,161,839 km (0.072 R)
• M5: 2,655,811 km (0.067 R)
• M6: 3,168,333 km (0.095 R)
• M7: 3,601,120 km (0.099 R)
• M8: 4,611,803 km (0.103 R)
• M9: 5,889,818 km (0.074 R)
• M10: 7,875,131 km (0.045 R)
• M11: 8,416,077 km (0.119 R)
• M12: 9,816,014 km (0.119 R)
• M13: 11,321,118 km (0.112 R)
• M14: 12,058,336 km (0.071 R)
• M15: 13,024,439 km (0.082 R)
• M16: 15,609,939 km (0.108 R)
• M17: 16,465,490 km (0.108 R)
• M18: 17,292,018 km (0.113 R)
• M19: 18,900,345 km (0.105 R)
• M20: 19,349,886 km (0.095 R)
• M21: 19,872,432 km (0.066 R)
• M22: 21,082,529 km (0.076 R)
• M23: 22,555,918 km (0.065 R)
• M24: 26,738,974 km (0.056 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.77 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 218.4

Radius: 8

Gravity: 3.41 G

Time & Orbit

Eccentricity (e): 0.202

Orbit Range: 3.01 AU - 4.53 AU

Year: 4726 Days

Day: 5.5 Hours

Environment

Temp: -204 °C

Axial Tilt: 19.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 53,178,678 km

• M1: 99,483 km (0.107 R)
• M2: 484,248 km (0.12 R)
• M3: 1,245,402 km (0.077 R)
• M4: 1,564,195 km (0.111 R)
• M5: 1,937,292 km (0.076 R)
• M6: 2,439,642 km (0.101 R)
• M7: 2,863,154 km (0.038 R)
• M8: 3,760,591 km (0.062 R)
• M9: 4,057,393 km (0.116 R)
• M10: 4,788,329 km (0.073 R)
• M11: 5,503,556 km (0.103 R)
• M12: 5,757,274 km (0.111 R)
• M13: 6,206,516 km (0.092 R)
• M14: 6,909,477 km (0.119 R)
• M15: 8,273,959 km (0.115 R)
• M16: 8,573,903 km (0.082 R)
• M17: 9,301,846 km (0.07 R)
• M18: 9,809,581 km (0.103 R)
• M19: 12,240,397 km (0.053 R)
• M20: 14,752,893 km (0.118 R)
• M21: 16,572,003 km (0.111 R)
• M22: 19,339,863 km (0.099 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.15 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 912.1

Radius: 10.9

Gravity: 7.68 G

Time & Orbit

Eccentricity (e): 0.244

Orbit Range: 3.89 AU - 6.41 AU

Year: 7546 Days

Day: 5.4 Hours

Environment

Temp: -207 °C

Axial Tilt: 18.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 53,178,678 km

• M1: 139,724 km (0.074 R)
• M2: 730,486 km (0.047 R)
• M3: 1,071,719 km (0.095 R)
• M4: 2,237,087 km (0.105 R)
• M5: 3,386,896 km (0.077 R)
• M6: 4,746,591 km (0.113 R)
• M7: 5,106,523 km (0.084 R)
• M8: 6,476,840 km (0.058 R)
• M9: 7,464,485 km (0.12 R)
• M10: 8,505,985 km (0.037 R)
• M11: 9,175,885 km (0.069 R)
• M12: 12,380,121 km (0.12 R)
• M13: 12,834,301 km (0.051 R)
• M14: 14,889,775 km (0.072 R)
• M15: 16,399,218 km (0.061 R)
• M16: 19,263,119 km (0.118 R)
• M17: 19,796,585 km (0.033 R)
• M18: 20,183,595 km (0.113 R)
• M19: 21,374,993 km (0.099 R)
• M20: 23,464,127 km (0.116 R)
• M21: 26,894,855 km (0.077 R)
• M22: 28,631,237 km (0.048 R)
• M23: 29,627,409 km (0.11 R)
• M24: 35,410,564 km (0.085 R)
• M25: 36,326,701 km (0.064 R)
• M26: 38,087,019 km (0.101 R)
• M27: 41,650,441 km (0.102 R)
• M28: 42,414,587 km (0.087 R)
• M29: 43,317,709 km (0.076 R)

Planet 8 - Gas Giant

Semi-Major Axis: 5.22 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 152.9

Radius: 8.9

Gravity: 1.93 G

Time & Orbit

Eccentricity (e): 0.095

Orbit Range: 4.72 AU - 5.72 AU

Year: 7701 Days

Day: 6.9 Hours

Environment

Temp: -225 °C

Axial Tilt: 20 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 53,178,678 km

• M1: 110,852 km (0.107 R)
• M2: 528,230 km (0.114 R)
• M3: 828,174 km (0.045 R)
• M4: 1,198,578 km (0.09 R)
• M5: 1,666,969 km (0.111 R)
• M6: 2,477,640 km (0.104 R)
• M7: 3,510,164 km (0.09 R)
• M8: 4,290,317 km (0.105 R)
• M9: 4,879,883 km (0.111 R)
• M10: 6,485,367 km (0.076 R)
• M11: 7,326,556 km (0.077 R)
• M12: 8,850,958 km (0.104 R)
• M13: 13,420,575 km (0.078 R)
• M14: 13,964,812 km (0.088 R)
• M15: 20,372,687 km (0.101 R)
• M16: 23,208,763 km (0.115 R)

Planet 9 - Ice Giant

Semi-Major Axis: 6.59 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 784

Radius: 6.3

Gravity: 19.75 G

Time & Orbit

Eccentricity (e): 0.11

Orbit Range: 5.87 AU - 7.31 AU

Year: 10923 Days

Day: 22.4 Hours

Environment

Temp: -220 °C

Axial Tilt: 42.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 53,178,678 km

• M1: 84,523 km (0.119 R)
• M2: 316,848 km (0.116 R)
• M3: 758,760 km (0.032 R)
• M4: 990,338 km (0.113 R)
• M5: 3,426,090 km (0.088 R)
• M6: 6,440,936 km (0.096 R)
• M7: 6,715,897 km (0.093 R)
• M8: 7,631,137 km (0.094 R)
• M9: 7,983,739 km (0.03 R)
• M10: 12,918,225 km (0.06 R)
• M11: 14,194,893 km (0.076 R)
• M12: 14,795,977 km (0.07 R)
• M13: 16,481,945 km (0.092 R)
• M14: 18,291,780 km (0.106 R)
• M15: 22,569,831 km (0.107 R)
• M16: 24,509,816 km (0.106 R)
• M17: 28,929,835 km (0.078 R)
• M18: 51,445,511 km (0.037 R)

Kuiper Belt

Range: 30 - 57 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 456 - 17,891 AU

Composition

Type: Cometary Reservoir

System's final boundary, containing trillions of icy planetesimals.

Gravitational Limit