🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.32 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.63 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.28

Radius: 1.39

Gravity: 1.18 G

Time & Orbit

Eccentricity (e): 0.019

Orbit Range: 0.62 AU - 0.64 AU

Year: 328 Days

Day: 36.7 Hours

Environment

Temp: -124 °C

Axial Tilt: 28.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 821.7

Radius: 13.5

Gravity: 4.51 G

Time & Orbit

Eccentricity (e): 0.084

Orbit Range: 0.67 AU - 0.79 AU

Year: 409 Days

Day: 10 Hours

Environment

Temp: -136 °C

Axial Tilt: 12.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 45,517,066 km

• M1: 170,841 km (0.117 R)
• M2: 665,262 km (0.064 R)
• M3: 1,303,297 km (0.085 R)
• M4: 1,723,667 km (0.054 R)
• M5: 2,219,284 km (0.101 R)
• M6: 2,738,688 km (0.076 R)
• M7: 3,409,635 km (0.041 R)
• M8: 4,026,277 km (0.093 R)
• M9: 4,497,062 km (0.109 R)
• M10: 5,418,584 km (0.066 R)
• M11: 5,890,117 km (0.119 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.14 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 48.9

Radius: 12

Gravity: 0.34 G

Time & Orbit

Eccentricity (e): 0.016

Orbit Range: 1.12 AU - 1.16 AU

Year: 798 Days

Day: 12.3 Hours

Environment

Temp: -167 °C

Axial Tilt: 37 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 45,517,066 km

• M1: 150,944 km (0.037 R)
• M2: 670,049 km (0.06 R)
• M3: 1,063,641 km (0.065 R)
• M4: 1,442,423 km (0.038 R)
• M5: 2,478,986 km (0.059 R)
• M6: 3,041,026 km (0.071 R)
• M7: 3,428,334 km (0.114 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.16 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 386.3

Radius: 12.1

Gravity: 2.64 G

Time & Orbit

Eccentricity (e): 0.248

Orbit Range: 0.87 AU - 1.45 AU

Year: 820 Days

Day: 14.3 Hours

Environment

Temp: -166 °C

Axial Tilt: 22.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 45,517,066 km

• M1: 150,495 km (0.11 R)
• M2: 555,457 km (0.098 R)
• M3: 990,936 km (0.107 R)
• M4: 1,887,028 km (0.106 R)
• M5: 2,274,636 km (0.065 R)
• M6: 2,715,949 km (0.058 R)
• M7: 3,141,555 km (0.039 R)
• M8: 4,041,536 km (0.083 R)
• M9: 6,154,456 km (0.076 R)
• M10: 6,607,888 km (0.106 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.32 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 885.4

Radius: 11.7

Gravity: 6.47 G

Time & Orbit

Eccentricity (e): 0.122

Orbit Range: 1.16 AU - 1.48 AU

Year: 995 Days

Day: 7.1 Hours

Environment

Temp: -167 °C

Axial Tilt: 12 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 45,517,066 km

• M1: 145,708 km (0.093 R)
• M2: 572,810 km (0.028 R)
• M3: 942,167 km (0.093 R)
• M4: 1,431,502 km (0.093 R)
• M5: 2,338,065 km (0.072 R)
• M6: 2,821,117 km (0.111 R)
• M7: 4,702,459 km (0.056 R)
• M8: 5,747,401 km (0.101 R)
• M9: 7,331,941 km (0.041 R)
• M10: 7,867,502 km (0.07 R)
• M11: 8,960,015 km (0.091 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.55 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 611.2

Radius: 13.5

Gravity: 3.35 G

Time & Orbit

Eccentricity (e): 0.061

Orbit Range: 1.46 AU - 1.64 AU

Year: 1266 Days

Day: 6 Hours

Environment

Temp: -187 °C

Axial Tilt: 11.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 45,517,066 km

• M1: 167,849 km (0.088 R)
• M2: 630,555 km (0.062 R)
• M3: 1,131,409 km (0.099 R)
• M4: 2,003,714 km (0.042 R)
• M5: 2,428,273 km (0.054 R)
• M6: 4,289,121 km (0.119 R)
• M7: 5,141,978 km (0.087 R)
• M8: 6,082,799 km (0.053 R)
• M9: 6,629,878 km (0.078 R)
• M10: 9,067,426 km (0.052 R)
• M11: 10,795,581 km (0.102 R)

Planet 7 - Gas Giant

Semi-Major Axis: 1.56 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 507.7

Radius: 9.4

Gravity: 5.75 G

Time & Orbit

Eccentricity (e): 0.239

Orbit Range: 1.19 AU - 1.93 AU

Year: 1278 Days

Day: 6.6 Hours

Environment

Temp: -179 °C

Axial Tilt: 44.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 45,517,066 km

• M1: 116,986 km (0.11 R)
• M2: 2,274,785 km (0.038 R)
• M3: 2,839,966 km (0.097 R)
• M4: 3,319,427 km (0.08 R)
• M5: 4,266,830 km (0.114 R)
• M6: 5,166,512 km (0.052 R)
• M7: 7,067,751 km (0.099 R)
• M8: 9,721,767 km (0.113 R)

Planet 8 - Gas Giant

Semi-Major Axis: 4.05 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 899.5

Radius: 14.1

Gravity: 4.52 G

Time & Orbit

Eccentricity (e): 0.234

Orbit Range: 3.1 AU - 5 AU

Year: 5347 Days

Day: 7.9 Hours

Environment

Temp: -217 °C

Axial Tilt: 33.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 45,517,066 km

• M1: 176,376 km (0.094 R)
• M2: 706,401 km (0.026 R)
• M3: 1,575,864 km (0.105 R)
• M4: 3,331,245 km (0.055 R)
• M5: 3,839,130 km (0.118 R)
• M6: 5,592,567 km (0.099 R)
• M7: 6,957,348 km (0.113 R)
• M8: 7,755,902 km (0.103 R)
• M9: 8,216,813 km (0.1 R)
• M10: 8,901,073 km (0.109 R)
• M11: 9,363,929 km (0.079 R)
• M12: 10,246,856 km (0.052 R)
• M13: 12,540,490 km (0.07 R)
• M14: 14,747,059 km (0.118 R)
• M15: 15,456,751 km (0.06 R)
• M16: 16,189,182 km (0.076 R)
• M17: 22,287,091 km (0.03 R)
• M18: 23,301,514 km (0.068 R)
• M19: 25,590,661 km (0.118 R)
• M20: 26,702,921 km (0.106 R)
• M21: 27,936,654 km (0.102 R)
• M22: 28,749,569 km (0.078 R)
• M23: 33,153,132 km (0.079 R)

Planet 9 - Gas Giant

Semi-Major Axis: 4.96 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 114.9

Radius: 10.7

Gravity: 1 G

Time & Orbit

Eccentricity (e): 0.047

Orbit Range: 4.73 AU - 5.19 AU

Year: 7247 Days

Day: 12.1 Hours

Environment

Temp: -223 °C

Axial Tilt: 6.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 45,517,066 km

• M1: 135,386 km (0.072 R)
• M2: 492,775 km (0.109 R)
• M3: 1,988,156 km (0.099 R)
• M4: 3,044,915 km (0.046 R)
• M5: 4,826,327 km (0.12 R)
• M6: 7,125,795 km (0.096 R)
• M7: 14,137,597 km (0.097 R)
• M8: 18,592,771 km (0.113 R)
• M9: 19,001,622 km (0.084 R)

Planet 10 - Ice Giant

Semi-Major Axis: 6.05 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 615.5

Radius: 3.1

Gravity: 64.05 G

Time & Orbit

Eccentricity (e): 0.082

Orbit Range: 5.55 AU - 6.55 AU

Year: 9762 Days

Day: 20.6 Hours

Environment

Temp: -223 °C

Axial Tilt: 35.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 45,517,066 km

• M1: 38,596 km (0.103 R)
• M2: 143,165 km (0.114 R)
• M3: 286,480 km (0.116 R)
• M4: 391,647 km (0.09 R)
• M5: 549,772 km (0.044 R)
• M6: 667,207 km (0.114 R)
• M7: 775,067 km (0.113 R)
• M8: 953,686 km (0.102 R)
• M9: 1,556,865 km (0.072 R)
• M10: 1,938,788 km (0.107 R)
• M11: 2,778,032 km (0.112 R)
• M12: 5,389,114 km (0.078 R)
• M13: 5,588,079 km (0.039 R)
• M14: 7,120,559 km (0.106 R)
• M15: 7,982,542 km (0.065 R)
• M16: 8,154,281 km (0.109 R)
• M17: 13,473,233 km (0.054 R)
• M18: 14,212,695 km (0.117 R)
• M19: 15,839,123 km (0.082 R)
• M20: 15,974,360 km (0.112 R)
• M21: 18,692,553 km (0.093 R)
• M22: 20,319,430 km (0.1 R)
• M23: 20,881,918 km (0.112 R)
• M24: 21,290,171 km (0.058 R)
• M25: 22,122,384 km (0.1 R)
• M26: 29,575,050 km (0.059 R)
• M27: 30,610,118 km (0.097 R)
• M28: 33,082,073 km (0.095 R)
• M29: 36,032,592 km (0.096 R)
• M30: 36,501,581 km (0.053 R)
• M31: 37,691,782 km (0.119 R)
• M32: 41,034,247 km (0.086 R)
• M33: 41,289,312 km (0.055 R)
• M34: 42,450,640 km (0.095 R)
• M35: 42,581,089 km (0.082 R)

Kuiper Belt

Range: 30 - 47 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 317 - 14,197 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit