🌌 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 - Terrestrial

Semi-Major Axis: 0.53 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.32

Radius: 1.4

Gravity: 1.18 G

Time & Orbit

Eccentricity (e): 0.029

Orbit Range: 0.51 AU - 0.55 AU

Year: 253 Days

Day: 29.1 Hours

Environment

Temp: -124 °C

Axial Tilt: 4.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.72 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 134.6

Radius: 11.6

Gravity: 1 G

Time & Orbit

Eccentricity (e): 0.07

Orbit Range: 0.67 AU - 0.77 AU

Year: 401 Days

Day: 14.1 Hours

Environment

Temp: -132 °C

Axial Tilt: 10.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 37,534,026 km

• M1: 144,362 km (0.103 R)
• M2: 541,245 km (0.084 R)
• M3: 1,177,934 km (0.094 R)
• M4: 1,546,244 km (0.072 R)
• M5: 2,053,081 km (0.09 R)
• M6: 2,494,844 km (0.084 R)
• M7: 3,000,036 km (0.082 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.2 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 261.2

Radius: 9.3

Gravity: 3.02 G

Time & Orbit

Eccentricity (e): 0.005

Orbit Range: 1.19 AU - 1.21 AU

Year: 862 Days

Day: 9.3 Hours

Environment

Temp: -164 °C

Axial Tilt: 13.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 37,534,026 km

• M1: 115,789 km (0.114 R)
• M2: 419,024 km (0.088 R)
• M3: 825,930 km (0.109 R)
• M4: 1,125,425 km (0.033 R)
• M5: 1,471,445 km (0.114 R)
• M6: 2,139,399 km (0.111 R)
• M7: 3,441,200 km (0.058 R)
• M8: 3,984,240 km (0.057 R)
• M9: 5,190,897 km (0.083 R)
• M10: 5,497,123 km (0.088 R)
• M11: 5,851,371 km (0.084 R)
• M12: 6,296,724 km (0.11 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.62 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 202.4

Radius: 12.6

Gravity: 1.27 G

Time & Orbit

Eccentricity (e): 0.101

Orbit Range: 1.46 AU - 1.78 AU

Year: 1353 Days

Day: 14.2 Hours

Environment

Temp: -189 °C

Axial Tilt: 36.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 37,534,026 km

• M1: 156,629 km (0.102 R)
• M2: 578,345 km (0.048 R)
• M3: 1,008,439 km (0.047 R)
• M4: 1,493,136 km (0.062 R)
• M5: 2,940,197 km (0.065 R)
• M6: 3,709,728 km (0.075 R)
• M7: 4,826,327 km (0.079 R)
• M8: 7,998,699 km (0.078 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.82 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 639.5

Radius: 9.1

Gravity: 7.72 G

Time & Orbit

Eccentricity (e): 0.109

Orbit Range: 1.62 AU - 2.02 AU

Year: 1611 Days

Day: 14.1 Hours

Environment

Temp: -193 °C

Axial Tilt: 18.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 37,534,026 km

• M1: 113,246 km (0.111 R)
• M2: 687,851 km (0.104 R)
• M3: 1,391,859 km (0.118 R)
• M4: 1,682,378 km (0.047 R)
• M5: 2,069,687 km (0.119 R)
• M6: 2,647,134 km (0.115 R)
• M7: 3,569,106 km (0.111 R)
• M8: 4,231,825 km (0.047 R)
• M9: 4,994,774 km (0.106 R)
• M10: 5,442,221 km (0.069 R)
• M11: 7,978,204 km (0.095 R)
• M12: 13,338,894 km (0.117 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.99 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 703.5

Radius: 13.1

Gravity: 4.1 G

Time & Orbit

Eccentricity (e): 0.043

Orbit Range: 3.82 AU - 4.16 AU

Year: 5228 Days

Day: 9.7 Hours

Environment

Temp: -203 °C

Axial Tilt: 10 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 37,534,026 km

• M1: 163,361 km (0.118 R)
• M2: 674,537 km (0.09 R)
• M3: 1,215,034 km (0.078 R)
• M4: 2,072,678 km (0.107 R)
• M5: 2,733,003 km (0.082 R)
• M6: 3,182,246 km (0.096 R)
• M7: 3,615,930 km (0.088 R)
• M8: 4,477,614 km (0.05 R)
• M9: 5,616,951 km (0.026 R)
• M10: 6,223,421 km (0.091 R)
• M11: 7,077,176 km (0.103 R)
• M12: 7,568,306 km (0.093 R)
• M13: 8,082,175 km (0.102 R)
• M14: 8,541,290 km (0.114 R)
• M15: 9,765,450 km (0.072 R)
• M16: 12,918,225 km (0.108 R)
• M17: 15,733,208 km (0.065 R)
• M18: 16,390,242 km (0.096 R)
• M19: 17,695,184 km (0.112 R)
• M20: 18,537,121 km (0.1 R)
• M21: 22,174,294 km (0.081 R)
• M22: 24,081,816 km (0.046 R)
• M23: 25,196,620 km (0.12 R)
• M24: 29,013,460 km (0.046 R)
• M25: 30,275,467 km (0.094 R)
• M26: 31,105,885 km (0.055 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.66 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 421.5

Radius: 14.5

Gravity: 2 G

Time & Orbit

Eccentricity (e): 0.031

Orbit Range: 5.48 AU - 5.84 AU

Year: 8834 Days

Day: 7.7 Hours

Environment

Temp: -225 °C

Axial Tilt: 38.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 37,534,026 km

• M1: 218,862 km (0.037 R)
• M2: 723,007 km (0.06 R)
• M3: 1,209,200 km (0.105 R)
• M4: 3,405,895 km (0.047 R)
• M5: 5,964,766 km (0.048 R)
• M6: 6,600,707 km (0.105 R)
• M7: 9,299,901 km (0.083 R)
• M8: 10,203,622 km (0.066 R)
• M9: 12,774,312 km (0.116 R)
• M10: 16,837,988 km (0.039 R)
• M11: 20,550,708 km (0.068 R)
• M12: 23,609,386 km (0.108 R)
• M13: 26,870,171 km (0.086 R)
• M14: 30,909,613 km (0.113 R)
• M15: 35,229,850 km (0.066 R)

Kuiper Belt

Range: 30 - 49 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 375 - 18,755 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit