🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.26 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.52 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.37

Radius: 1.41

Gravity: 1.19 G

Time & Orbit

Eccentricity (e): 0.115

Orbit Range: 0.46 AU - 0.58 AU

Year: 242 Days

Day: 35.4 Hours

Environment

Temp: -108 °C

Axial Tilt: 8.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 323.8

Radius: 14

Gravity: 1.65 G

Time & Orbit

Eccentricity (e): 0.035

Orbit Range: 0.78 AU - 0.84 AU

Year: 471 Days

Day: 14.7 Hours

Environment

Temp: -150 °C

Axial Tilt: 10 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 35,611,788 km

• M1: 174,132 km (0.058 R)
• M2: 884,871 km (0.117 R)
• M3: 1,722,769 km (0.082 R)
• M4: 2,234,543 km (0.09 R)
• M5: 3,097,424 km (0.12 R)
• M6: 3,539,037 km (0.088 R)
• M7: 4,300,789 km (0.111 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.96 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 970.4

Radius: 9.5

Gravity: 10.75 G

Time & Orbit

Eccentricity (e): 0.101

Orbit Range: 0.86 AU - 1.06 AU

Year: 607 Days

Day: 10.1 Hours

Environment

Temp: -158 °C

Axial Tilt: 21.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 35,611,788 km

• M1: 118,182 km (0.101 R)
• M2: 423,661 km (0.093 R)
• M3: 730,038 km (0.111 R)
• M4: 1,036,264 km (0.071 R)
• M5: 1,489,845 km (0.079 R)
• M6: 2,662,393 km (0.033 R)
• M7: 3,703,295 km (0.113 R)
• M8: 4,411,492 km (0.052 R)
• M9: 4,960,665 km (0.105 R)
• M10: 5,297,261 km (0.077 R)
• M11: 6,317,518 km (0.078 R)
• M12: 6,842,008 km (0.102 R)
• M13: 7,764,877 km (0.117 R)
• M14: 8,098,331 km (0.08 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.02 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 107.9

Radius: 12.7

Gravity: 0.67 G

Time & Orbit

Eccentricity (e): 0.185

Orbit Range: 0.83 AU - 1.21 AU

Year: 665 Days

Day: 8.1 Hours

Environment

Temp: -169 °C

Axial Tilt: 19 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 35,611,788 km

• M1: 157,975 km (0.085 R)
• M2: 553,662 km (0.102 R)
• M3: 1,109,717 km (0.059 R)
• M4: 2,167,673 km (0.049 R)
• M5: 2,769,655 km (0.09 R)
• M6: 4,009,073 km (0.046 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.25 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 891.6

Radius: 9.4

Gravity: 10.09 G

Time & Orbit

Eccentricity (e): 0.135

Orbit Range: 1.95 AU - 2.55 AU

Year: 2179 Days

Day: 12.6 Hours

Environment

Temp: -186 °C

Axial Tilt: 36.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 35,611,788 km

• M1: 116,986 km (0.055 R)
• M2: 475,422 km (0.062 R)
• M3: 945,459 km (0.119 R)
• M4: 1,614,460 km (0.097 R)
• M5: 2,213,001 km (0.095 R)
• M6: 2,826,801 km (0.07 R)
• M7: 3,550,257 km (0.116 R)
• M8: 6,331,281 km (0.096 R)
• M9: 8,158,619 km (0.118 R)
• M10: 8,483,246 km (0.114 R)
• M11: 8,782,891 km (0.038 R)
• M12: 9,869,271 km (0.109 R)
• M13: 10,808,895 km (0.059 R)
• M14: 13,985,307 km (0.085 R)
• M15: 15,661,251 km (0.12 R)
• M16: 16,885,261 km (0.09 R)
• M17: 18,226,855 km (0.036 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.18 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 398.5

Radius: 14.4

Gravity: 1.92 G

Time & Orbit

Eccentricity (e): 0.143

Orbit Range: 2.73 AU - 3.63 AU

Year: 3661 Days

Day: 6 Hours

Environment

Temp: -196 °C

Axial Tilt: 146.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 35,611,788 km

• M1: 180,864 km (0.047 R)
• M2: 648,956 km (0.066 R)
• M3: 1,232,537 km (0.082 R)
• M4: 2,452,358 km (0.091 R)
• M5: 4,119,477 km (0.094 R)
• M6: 5,255,074 km (0.103 R)
• M7: 11,997,600 km (0.092 R)
• M8: 17,749,488 km (0.071 R)
• M9: 19,402,844 km (0.103 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.33 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 693.4

Radius: 13.2

Gravity: 3.98 G

Time & Orbit

Eccentricity (e): 0.121

Orbit Range: 3.81 AU - 4.85 AU

Year: 5818 Days

Day: 14.1 Hours

Environment

Temp: -208 °C

Axial Tilt: 16.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 35,611,788 km

• M1: 165,156 km (0.117 R)
• M2: 648,956 km (0.106 R)
• M3: 1,065,286 km (0.1 R)
• M4: 1,510,938 km (0.098 R)
• M5: 1,966,763 km (0.05 R)
• M6: 2,799,275 km (0.088 R)
• M7: 3,651,534 km (0.077 R)
• M8: 4,565,428 km (0.105 R)
• M9: 6,248,105 km (0.119 R)
• M10: 7,159,156 km (0.107 R)
• M11: 9,329,970 km (0.089 R)
• M12: 10,704,924 km (0.095 R)
• M13: 11,959,003 km (0.116 R)
• M14: 14,471,051 km (0.114 R)
• M15: 20,016,793 km (0.077 R)
• M16: 20,444,793 km (0.116 R)
• M17: 26,323,391 km (0.06 R)
• M18: 27,270,794 km (0.114 R)
• M19: 28,419,855 km (0.05 R)
• M20: 29,692,933 km (0.081 R)
• M21: 32,646,893 km (0.109 R)
• M22: 33,439,911 km (0.046 R)

Planet 8 - Gas Giant

Semi-Major Axis: 5.82 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 341.8

Radius: 12.2

Gravity: 2.3 G

Time & Orbit

Eccentricity (e): 0.071

Orbit Range: 5.41 AU - 6.23 AU

Year: 9066 Days

Day: 7.8 Hours

Environment

Temp: -210 °C

Axial Tilt: 21 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 35,611,788 km

• M1: 151,692 km (0.096 R)
• M2: 712,535 km (0.096 R)
• M3: 1,461,122 km (0.113 R)
• M4: 2,271,344 km (0.12 R)
• M5: 4,097,934 km (0.105 R)
• M6: 4,691,389 km (0.033 R)
• M7: 5,108,917 km (0.11 R)
• M8: 5,551,278 km (0.088 R)
• M9: 8,161,013 km (0.049 R)
• M10: 9,231,236 km (0.074 R)
• M11: 10,392,714 km (0.075 R)
• M12: 13,664,718 km (0.083 R)
• M13: 14,873,320 km (0.058 R)
• M14: 15,534,243 km (0.062 R)
• M15: 17,109,209 km (0.101 R)
• M16: 17,502,502 km (0.052 R)
• M17: 18,926,973 km (0.096 R)
• M18: 19,347,792 km (0.099 R)
• M19: 21,244,244 km (0.101 R)
• M20: 26,088,373 km (0.073 R)
• M21: 27,227,261 km (0.119 R)
• M22: 27,674,110 km (0.115 R)
• M23: 31,231,248 km (0.111 R)
• M24: 32,917,216 km (0.12 R)

Kuiper Belt

Range: 30 - 50 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 160 - 18,505 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit