🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.45 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.9 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 309.6

Radius: 8.1

Gravity: 4.72 G

Time & Orbit

Eccentricity (e): 0.196

Orbit Range: 0.72 AU - 1.08 AU

Year: 543 Days

Day: 10.3 Hours

Environment

Temp: -157 °C

Axial Tilt: 22.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 30,368,796 km

• M1: 100,829 km (0.088 R)
• M2: 389,104 km (0.105 R)
• M3: 743,501 km (0.078 R)
• M4: 1,269,188 km (0.098 R)
• M5: 2,104,992 km (0.119 R)
• M6: 2,632,025 km (0.086 R)
• M7: 2,932,268 km (0.051 R)
• M8: 4,342,826 km (0.052 R)
• M9: 4,606,567 km (0.112 R)
• M10: 4,910,401 km (0.088 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.94 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 835.1

Radius: 11.7

Gravity: 6.1 G

Time & Orbit

Eccentricity (e): 0.04

Orbit Range: 0.9 AU - 0.98 AU

Year: 579 Days

Day: 6.7 Hours

Environment

Temp: -158 °C

Axial Tilt: 26.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 30,368,796 km

• M1: 145,858 km (0.101 R)
• M2: 545,434 km (0.102 R)
• M3: 1,234,033 km (0.081 R)
• M4: 2,071,482 km (0.108 R)
• M5: 2,849,241 km (0.079 R)
• M6: 4,232,573 km (0.056 R)
• M7: 4,651,895 km (0.08 R)
• M8: 5,098,894 km (0.055 R)
• M9: 5,484,258 km (0.109 R)
• M10: 6,493,595 km (0.096 R)
• M11: 7,096,175 km (0.061 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.15 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 250.7

Radius: 9.9

Gravity: 2.56 G

Time & Orbit

Eccentricity (e): 0.035

Orbit Range: 1.11 AU - 1.19 AU

Year: 784 Days

Day: 7.1 Hours

Environment

Temp: -169 °C

Axial Tilt: 22.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 30,368,796 km

• M1: 124,166 km (0.115 R)
• M2: 440,117 km (0.077 R)
• M3: 860,936 km (0.098 R)
• M4: 1,293,872 km (0.058 R)
• M5: 1,893,610 km (0.1 R)
• M6: 2,588,342 km (0.088 R)
• M7: 2,912,671 km (0.118 R)
• M8: 3,543,375 km (0.049 R)
• M9: 3,985,586 km (0.107 R)
• M10: 4,809,721 km (0.096 R)
• M11: 5,486,652 km (0.04 R)
• M12: 6,098,208 km (0.119 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.18 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 872.2

Radius: 12.4

Gravity: 5.67 G

Time & Orbit

Eccentricity (e): 0.088

Orbit Range: 1.08 AU - 1.28 AU

Year: 815 Days

Day: 10.5 Hours

Environment

Temp: -166 °C

Axial Tilt: 7.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 30,368,796 km

• M1: 154,385 km (0.056 R)
• M2: 637,137 km (0.053 R)
• M3: 1,203,964 km (0.095 R)
• M4: 1,744,610 km (0.036 R)
• M5: 2,314,429 km (0.099 R)
• M6: 3,408,887 km (0.037 R)
• M7: 4,033,308 km (0.101 R)
• M8: 4,423,609 km (0.088 R)
• M9: 5,112,358 km (0.109 R)
• M10: 5,551,278 km (0.087 R)
• M11: 5,974,041 km (0.092 R)
• M12: 6,637,508 km (0.056 R)
• M13: 7,541,528 km (0.114 R)
• M14: 8,061,380 km (0.119 R)
• M15: 8,684,605 km (0.1 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.31 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 841.3

Radius: 11

Gravity: 6.95 G

Time & Orbit

Eccentricity (e): 0.073

Orbit Range: 1.21 AU - 1.41 AU

Year: 953 Days

Day: 6.4 Hours

Environment

Temp: -166 °C

Axial Tilt: 18.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 30,368,796 km

• M1: 139,126 km (0.044 R)
• M2: 527,332 km (0.1 R)
• M3: 1,458,729 km (0.052 R)
• M4: 2,004,013 km (0.082 R)
• M5: 2,935,110 km (0.113 R)
• M6: 3,580,775 km (0.089 R)
• M7: 6,585,747 km (0.06 R)
• M8: 7,148,833 km (0.109 R)
• M9: 8,506,733 km (0.079 R)
• M10: 9,290,028 km (0.1 R)
• M11: 10,059,858 km (0.118 R)
• M12: 10,491,747 km (0.081 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.3 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 222.3

Radius: 8.8

Gravity: 2.87 G

Time & Orbit

Eccentricity (e): 0.075

Orbit Range: 2.13 AU - 2.47 AU

Year: 2218 Days

Day: 13.4 Hours

Environment

Temp: -200 °C

Axial Tilt: 32 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 30,368,796 km

• M1: 156,629 km (0.091 R)
• M2: 700,567 km (0.085 R)
• M3: 982,858 km (0.115 R)
• M4: 1,595,461 km (0.109 R)
• M5: 2,491,403 km (0.049 R)
• M6: 3,057,332 km (0.109 R)
• M7: 3,563,421 km (0.085 R)
• M8: 4,176,473 km (0.091 R)
• M9: 6,164,031 km (0.047 R)
• M10: 7,172,620 km (0.099 R)
• M11: 8,121,369 km (0.062 R)
• M12: 10,493,243 km (0.106 R)
• M13: 11,400,106 km (0.034 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.3 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 195.4

Radius: 9.1

Gravity: 2.36 G

Time & Orbit

Eccentricity (e): 0.035

Orbit Range: 3.18 AU - 3.42 AU

Year: 3812 Days

Day: 7.7 Hours

Environment

Temp: -199 °C

Axial Tilt: 47.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 30,368,796 km

• M1: 113,246 km (0.109 R)
• M2: 623,225 km (0.118 R)
• M3: 1,038,658 km (0.12 R)
• M4: 2,209,710 km (0.08 R)
• M5: 2,621,703 km (0.075 R)
• M6: 3,344,111 km (0.102 R)
• M7: 3,743,238 km (0.12 R)
• M8: 4,154,632 km (0.119 R)
• M9: 4,742,701 km (0.091 R)
• M10: 6,009,496 km (0.104 R)
• M11: 7,430,975 km (0.109 R)
• M12: 7,781,782 km (0.103 R)
• M13: 8,933,386 km (0.073 R)
• M14: 9,499,016 km (0.103 R)
• M15: 10,999,034 km (0.114 R)
• M16: 11,339,967 km (0.118 R)
• M17: 15,009,753 km (0.072 R)
• M18: 15,571,194 km (0.077 R)

Planet 8 - Gas Giant

Semi-Major Axis: 4.3 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 701.4

Radius: 8.4

Gravity: 9.94 G

Time & Orbit

Eccentricity (e): 0.135

Orbit Range: 3.72 AU - 4.88 AU

Year: 5669 Days

Day: 9.6 Hours

Environment

Temp: -213 °C

Axial Tilt: 31 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 30,368,796 km

• M1: 104,419 km (0.073 R)
• M2: 711,487 km (0.065 R)
• M3: 1,106,426 km (0.111 R)
• M4: 2,672,865 km (0.083 R)
• M5: 3,191,521 km (0.069 R)
• M6: 4,506,337 km (0.098 R)
• M7: 5,653,154 km (0.08 R)
• M8: 6,879,856 km (0.11 R)
• M9: 11,614,928 km (0.101 R)
• M10: 13,310,620 km (0.093 R)
• M11: 13,745,352 km (0.05 R)
• M12: 16,062,772 km (0.111 R)
• M13: 22,204,812 km (0.115 R)
• M14: 24,800,933 km (0.113 R)
• M15: 29,382,817 km (0.08 R)

Planet 9 - Gas Giant

Semi-Major Axis: 4.57 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 451.5

Radius: 14.1

Gravity: 2.27 G

Time & Orbit

Eccentricity (e): 0.055

Orbit Range: 4.32 AU - 4.82 AU

Year: 6212 Days

Day: 6 Hours

Environment

Temp: -213 °C

Axial Tilt: 17.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 30,368,796 km

• M1: 175,478 km (0.073 R)
• M2: 664,364 km (0.119 R)
• M3: 1,526,197 km (0.075 R)
• M4: 2,476,892 km (0.118 R)
• M5: 2,945,133 km (0.106 R)
• M6: 3,705,838 km (0.11 R)
• M7: 4,929,699 km (0.053 R)
• M8: 5,679,184 km (0.072 R)
• M9: 6,664,585 km (0.12 R)
• M10: 8,390,945 km (0.06 R)
• M11: 11,258,137 km (0.083 R)
• M12: 11,776,943 km (0.115 R)
• M13: 12,262,238 km (0.074 R)
• M14: 12,760,998 km (0.07 R)
• M15: 14,503,663 km (0.095 R)
• M16: 15,808,905 km (0.041 R)
• M17: 16,701,555 km (0.071 R)
• M18: 18,849,033 km (0.099 R)
• M19: 19,716,999 km (0.108 R)
• M20: 21,894,247 km (0.116 R)
• M21: 24,383,406 km (0.093 R)
• M22: 26,144,322 km (0.069 R)
• M23: 28,160,453 km (0.099 R)

Kuiper Belt

Range: 30 - 58 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 390 - 18,049 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit