🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.27 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.54 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 774.3

Radius: 12.9

Gravity: 4.65 G

Time & Orbit

Eccentricity (e): 0.161

Orbit Range: 0.45 AU - 0.63 AU

Year: 269 Days

Day: 7 Hours

Environment

Temp: -138 °C

Axial Tilt: 18.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 25,307,593 km

• M1: 160,519 km (0.087 R)
• M2: 565,031 km (0.067 R)
• M3: 1,017,266 km (0.07 R)
• M4: 1,420,581 km (0.053 R)
• M5: 1,962,724 km (0.071 R)
• M6: 2,416,006 km (0.095 R)
• M7: 2,901,002 km (0.093 R)
• M8: 4,033,907 km (0.1 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.6 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 151.4

Radius: 13.8

Gravity: 0.8 G

Time & Orbit

Eccentricity (e): 0.199

Orbit Range: 0.48 AU - 0.72 AU

Year: 315 Days

Day: 8.9 Hours

Environment

Temp: -141 °C

Axial Tilt: 14.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 25,307,593 km

• M1: 171,589 km (0.098 R)
• M2: 705,204 km (0.069 R)
• M3: 1,137,093 km (0.116 R)
• M4: 1,795,474 km (0.028 R)
• M5: 2,445,476 km (0.102 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.63 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 73

Radius: 9.1

Gravity: 0.88 G

Time & Orbit

Eccentricity (e): 0.233

Orbit Range: 0.48 AU - 0.78 AU

Year: 339 Days

Day: 14.3 Hours

Environment

Temp: -157 °C

Axial Tilt: 17.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 25,307,593 km

• M1: 113,246 km (0.057 R)
• M2: 403,465 km (0.096 R)
• M3: 891,005 km (0.1 R)
• M4: 1,433,596 km (0.107 R)
• M5: 1,783,057 km (0.1 R)
• M6: 2,189,514 km (0.108 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.68 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 670.1

Radius: 9.2

Gravity: 7.92 G

Time & Orbit

Eccentricity (e): 0.221

Orbit Range: 0.53 AU - 0.83 AU

Year: 380 Days

Day: 11.7 Hours

Environment

Temp: -148 °C

Axial Tilt: 17 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 25,307,593 km

• M1: 114,592 km (0.084 R)
• M2: 417,378 km (0.054 R)
• M3: 718,967 km (0.098 R)
• M4: 1,005,148 km (0.086 R)
• M5: 1,495,081 km (0.117 R)
• M6: 1,799,812 km (0.094 R)
• M7: 2,435,603 km (0.051 R)
• M8: 2,882,452 km (0.094 R)
• M9: 3,191,671 km (0.084 R)
• M10: 3,777,496 km (0.101 R)
• M11: 4,672,989 km (0.08 R)
• M12: 5,102,035 km (0.096 R)

Planet 5 - Gas Giant

Semi-Major Axis: 0.99 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 969.7

Radius: 9.4

Gravity: 10.97 G

Time & Orbit

Eccentricity (e): 0.097

Orbit Range: 0.89 AU - 1.09 AU

Year: 668 Days

Day: 6.9 Hours

Environment

Temp: -179 °C

Axial Tilt: 18.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 25,307,593 km

• M1: 117,584 km (0.082 R)
• M2: 482,304 km (0.113 R)
• M3: 866,920 km (0.1 R)
• M4: 1,418,786 km (0.113 R)
• M5: 1,840,802 km (0.078 R)
• M6: 2,221,229 km (0.117 R)
• M7: 3,002,130 km (0.083 R)
• M8: 3,367,298 km (0.06 R)
• M9: 4,124,712 km (0.088 R)
• M10: 4,510,825 km (0.08 R)
• M11: 4,973,830 km (0.099 R)
• M12: 5,318,503 km (0.099 R)
• M13: 6,015,480 km (0.115 R)
• M14: 7,877,824 km (0.117 R)
• M15: 8,197,066 km (0.057 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.2 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 120.3

Radius: 9.6

Gravity: 1.31 G

Time & Orbit

Eccentricity (e): 0.175

Orbit Range: 0.99 AU - 1.41 AU

Year: 892 Days

Day: 5.9 Hours

Environment

Temp: -185 °C

Axial Tilt: 35.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 25,307,593 km

• M1: 119,678 km (0.1 R)
• M2: 437,275 km (0.094 R)
• M3: 822,339 km (0.063 R)
• M4: 1,217,128 km (0.102 R)
• M5: 1,598,004 km (0.09 R)
• M6: 2,107,086 km (0.094 R)
• M7: 2,473,601 km (0.06 R)
• M8: 2,934,063 km (0.092 R)
• M9: 3,811,903 km (0.063 R)
• M10: 4,184,701 km (0.09 R)
• M11: 4,539,547 km (0.118 R)
• M12: 5,279,010 km (0.084 R)

Planet 7 - Gas Giant

Semi-Major Axis: 1.63 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 424.8

Radius: 10.4

Gravity: 3.93 G

Time & Orbit

Eccentricity (e): 0.028

Orbit Range: 1.58 AU - 1.68 AU

Year: 1411 Days

Day: 12.1 Hours

Environment

Temp: -187 °C

Axial Tilt: 45 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 25,307,593 km

• M1: 129,402 km (0.113 R)
• M2: 541,095 km (0.114 R)
• M3: 1,037,012 km (0.078 R)
• M4: 2,104,543 km (0.06 R)
• M5: 2,554,533 km (0.113 R)
• M6: 2,880,806 km (0.109 R)
• M7: 3,437,909 km (0.03 R)
• M8: 3,790,062 km (0.088 R)
• M9: 4,694,381 km (0.119 R)
• M10: 5,447,307 km (0.106 R)
• M11: 6,278,922 km (0.07 R)
• M12: 6,643,641 km (0.094 R)
• M13: 8,086,513 km (0.084 R)
• M14: 10,950,115 km (0.1 R)

Planet 8 - Ice Giant

Semi-Major Axis: 5.7 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 458.9

Radius: 7.3

Gravity: 8.61 G

Time & Orbit

Eccentricity (e): 0.213

Orbit Range: 4.49 AU - 6.91 AU

Year: 9230 Days

Day: 16.2 Hours

Environment

Temp: -235 °C

Axial Tilt: 51.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 25,307,593 km

• M1: 152,739 km (0.108 R)
• M2: 398,678 km (0.11 R)
• M3: 688,599 km (0.071 R)
• M4: 1,307,186 km (0.054 R)
• M5: 2,725,972 km (0.046 R)
• M6: 3,401,257 km (0.093 R)
• M7: 3,901,812 km (0.115 R)
• M8: 4,786,384 km (0.116 R)
• M9: 5,604,535 km (0.097 R)
• M10: 7,245,623 km (0.108 R)
• M11: 9,363,181 km (0.045 R)
• M12: 10,200,032 km (0.116 R)
• M13: 11,547,460 km (0.09 R)
• M14: 12,729,881 km (0.068 R)
• M15: 17,990,191 km (0.106 R)
• M16: 18,699,435 km (0.115 R)
• M17: 19,872,880 km (0.098 R)
• M18: 21,723,855 km (0.091 R)
• M19: 23,771,102 km (0.098 R)
• M20: 24,280,931 km (0.087 R)
• M21: 26,575,015 km (0.09 R)
• M22: 28,625,702 km (0.055 R)
• M23: 31,691,112 km (0.094 R)
• M24: 34,317,303 km (0.053 R)
• M25: 36,858,522 km (0.061 R)
• M26: 37,198,857 km (0.052 R)

Planet 9 - Ice Giant

Semi-Major Axis: 5.97 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 103

Radius: 6

Gravity: 2.86 G

Time & Orbit

Eccentricity (e): 0.115

Orbit Range: 5.28 AU - 6.66 AU

Year: 9894 Days

Day: 21.6 Hours

Environment

Temp: -224 °C

Axial Tilt: 25 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 25,307,593 km

• M1: 76,445 km (0.117 R)
• M2: 365,916 km (0.076 R)
• M3: 646,562 km (0.066 R)
• M4: 1,271,582 km (0.071 R)
• M5: 1,826,440 km (0.097 R)
• M6: 2,025,406 km (0.075 R)
• M7: 2,343,451 km (0.067 R)
• M8: 3,228,771 km (0.037 R)
• M9: 4,341,779 km (0.048 R)
• M10: 4,625,716 km (0.049 R)
• M11: 4,947,052 km (0.073 R)
• M12: 5,178,330 km (0.077 R)
• M13: 5,497,722 km (0.047 R)
• M14: 6,720,385 km (0.102 R)
• M15: 6,940,444 km (0.095 R)
• M16: 7,197,902 km (0.097 R)
• M17: 8,114,189 km (0.098 R)
• M18: 9,220,764 km (0.112 R)
• M19: 9,730,145 km (0.098 R)
• M20: 11,327,102 km (0.059 R)
• M21: 14,191,901 km (0.072 R)
• M22: 14,923,734 km (0.105 R)
• M23: 15,461,688 km (0.111 R)
• M24: 16,576,342 km (0.09 R)
• M25: 17,094,848 km (0.105 R)
• M26: 18,964,372 km (0.087 R)
• M27: 20,502,089 km (0.107 R)
• M28: 24,856,135 km (0.057 R)

Kuiper Belt

Range: 30 - 54 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 246 - 15,209 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit