🌌 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 - Gas Giant

Semi-Major Axis: 0.52 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 485

Radius: 11.2

Gravity: 3.87 G

Time & Orbit

Eccentricity (e): 0.174

Orbit Range: 0.43 AU - 0.61 AU

Year: 254 Days

Day: 8.8 Hours

Environment

Temp: -136 °C

Axial Tilt: 42.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 21,116,034 km

• M1: 139,425 km (0.051 R)
• M2: 494,421 km (0.069 R)
• M3: 884,423 km (0.116 R)
• M4: 2,042,759 km (0.073 R)
• M5: 2,603,751 km (0.093 R)
• M6: 3,178,057 km (0.085 R)
• M7: 3,537,092 km (0.088 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.64 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 280.7

Radius: 13.4

Gravity: 1.56 G

Time & Orbit

Eccentricity (e): 0.159

Orbit Range: 0.54 AU - 0.74 AU

Year: 347 Days

Day: 6.2 Hours

Environment

Temp: -154 °C

Axial Tilt: 8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 21,116,034 km

• M1: 166,802 km (0.071 R)
• M2: 611,406 km (0.056 R)
• M3: 1,046,886 km (0.096 R)
• M4: 2,014,635 km (0.097 R)
• M5: 2,568,895 km (0.105 R)
• M6: 2,997,044 km (0.084 R)
• M7: 3,789,613 km (0.088 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 158.5

Radius: 13.6

Gravity: 0.86 G

Time & Orbit

Eccentricity (e): 0.186

Orbit Range: 0.66 AU - 0.96 AU

Year: 494 Days

Day: 13.8 Hours

Environment

Temp: -170 °C

Axial Tilt: 39.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 21,116,034 km

• M1: 169,195 km (0.099 R)
• M2: 699,669 km (0.03 R)
• M3: 1,164,021 km (0.101 R)
• M4: 1,713,195 km (0.103 R)
• M5: 2,156,304 km (0.08 R)
• M6: 3,281,280 km (0.05 R)
• M7: 3,862,617 km (0.082 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.47 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 116.5

Radius: 9.9

Gravity: 1.19 G

Time & Orbit

Eccentricity (e): 0.207

Orbit Range: 1.17 AU - 1.77 AU

Year: 1209 Days

Day: 9.8 Hours

Environment

Temp: -199 °C

Axial Tilt: 49.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 21,116,034 km

• M1: 123,717 km (0.103 R)
• M2: 695,780 km (0.094 R)
• M3: 1,013,526 km (0.051 R)
• M4: 1,492,089 km (0.111 R)
• M5: 1,840,203 km (0.084 R)
• M6: 2,853,430 km (0.074 R)
• M7: 3,384,353 km (0.1 R)
• M8: 4,118,280 km (0.088 R)
• M9: 4,907,259 km (0.114 R)
• M10: 5,481,416 km (0.114 R)
• M11: 6,099,704 km (0.08 R)
• M12: 6,473,549 km (0.114 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.43 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 394.9

Radius: 10.7

Gravity: 3.45 G

Time & Orbit

Eccentricity (e): 0.08

Orbit Range: 2.24 AU - 2.62 AU

Year: 2569 Days

Day: 14.8 Hours

Environment

Temp: -202 °C

Axial Tilt: 34 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 21,116,034 km

• M1: 134,040 km (0.085 R)
• M2: 595,699 km (0.105 R)
• M3: 936,483 km (0.098 R)
• M4: 1,669,213 km (0.109 R)
• M5: 2,368,433 km (0.104 R)
• M6: 2,707,123 km (0.098 R)
• M7: 3,467,379 km (0.09 R)
• M8: 3,925,448 km (0.044 R)
• M9: 4,544,484 km (0.091 R)
• M10: 5,249,838 km (0.111 R)
• M11: 6,151,016 km (0.096 R)
• M12: 6,932,665 km (0.112 R)
• M13: 7,575,935 km (0.053 R)
• M14: 7,956,812 km (0.047 R)
• M15: 9,814,668 km (0.067 R)
• M16: 10,374,313 km (0.081 R)
• M17: 12,024,078 km (0.059 R)
• M18: 12,952,782 km (0.055 R)
• M19: 14,591,178 km (0.062 R)
• M20: 15,090,236 km (0.083 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.44 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 106.5

Radius: 9

Gravity: 1.31 G

Time & Orbit

Eccentricity (e): 0.077

Orbit Range: 5.02 AU - 5.86 AU

Year: 8606 Days

Day: 8.1 Hours

Environment

Temp: -234 °C

Axial Tilt: 3.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 21,116,034 km

• M1: 113,246 km (0.115 R)
• M2: 984,354 km (0.113 R)
• M3: 1,509,891 km (0.101 R)
• M4: 3,337,528 km (0.064 R)
• M5: 3,868,751 km (0.101 R)
• M6: 5,302,197 km (0.081 R)
• M7: 6,573,929 km (0.042 R)
• M8: 8,003,935 km (0.039 R)
• M9: 9,708,004 km (0.082 R)
• M10: 13,048,674 km (0.111 R)
• M11: 14,770,247 km (0.091 R)
• M12: 18,242,114 km (0.115 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.67 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 495.8

Radius: 5.3

Gravity: 17.65 G

Time & Orbit

Eccentricity (e): 0.207

Orbit Range: 5.29 AU - 8.05 AU

Year: 11684 Days

Day: 17 Hours

Environment

Temp: -225 °C

Axial Tilt: 24.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 21,116,034 km

• M1: 65,973 km (0.099 R)
• M2: 283,937 km (0.11 R)
• M3: 507,436 km (0.103 R)
• M4: 733,179 km (0.088 R)
• M5: 1,025,344 km (0.119 R)
• M6: 1,277,416 km (0.101 R)
• M7: 2,216,891 km (0.062 R)
• M8: 3,140,059 km (0.103 R)
• M9: 4,127,106 km (0.118 R)
• M10: 5,371,461 km (0.119 R)
• M11: 6,654,113 km (0.085 R)
• M12: 8,802,339 km (0.094 R)
• M13: 9,224,354 km (0.068 R)
• M14: 10,057,914 km (0.118 R)
• M15: 11,428,230 km (0.076 R)
• M16: 13,158,629 km (0.099 R)
• M17: 15,456,901 km (0.067 R)
• M18: 17,129,405 km (0.061 R)
• M19: 17,712,687 km (0.082 R)
• M20: 19,228,862 km (0.076 R)
• M21: 20,583,769 km (0.095 R)
• M22: 21,409,998 km (0.054 R)
• M23: 22,086,630 km (0.098 R)
• M24: 24,020,781 km (0.062 R)
• M25: 24,567,262 km (0.111 R)
• M26: 26,545,245 km (0.104 R)
• M27: 28,121,857 km (0.085 R)
• M28: 32,334,233 km (0.083 R)
• M29: 32,555,189 km (0.108 R)
• M30: 40,555,384 km (0.075 R)
• M31: 42,775,267 km (0.069 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.13 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 446.1

Radius: 7.3

Gravity: 8.37 G

Time & Orbit

Eccentricity (e): 0.183

Orbit Range: 5.83 AU - 8.43 AU

Year: 12913 Days

Day: 21.1 Hours

Environment

Temp: -227 °C

Axial Tilt: 0.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 21,116,034 km

• M1: 90,956 km (0.069 R)
• M2: 502,200 km (0.108 R)
• M3: 859,141 km (0.118 R)
• M4: 1,353,262 km (0.095 R)
• M5: 2,482,128 km (0.077 R)
• M6: 3,191,222 km (0.055 R)
• M7: 4,028,072 km (0.093 R)
• M8: 4,308,568 km (0.059 R)
• M9: 5,666,468 km (0.112 R)
• M10: 6,729,959 km (0.05 R)
• M11: 6,965,726 km (0.091 R)
• M12: 7,537,190 km (0.108 R)
• M13: 11,641,706 km (0.082 R)
• M14: 14,422,731 km (0.032 R)
• M15: 15,759,238 km (0.04 R)
• M16: 16,245,880 km (0.104 R)
• M17: 16,886,308 km (0.074 R)
• M18: 18,908,722 km (0.082 R)
• M19: 19,379,207 km (0.092 R)
• M20: 21,508,434 km (0.12 R)
• M21: 29,656,731 km (0.103 R)
• M22: 31,808,696 km (0.079 R)
• M23: 44,145,733 km (0.087 R)
• M24: 46,375,938 km (0.048 R)

Planet 9 - Ice Giant

Semi-Major Axis: 9.88 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 13.2

Radius: 7.3

Gravity: 0.25 G

Time & Orbit

Eccentricity (e): 0.216

Orbit Range: 7.75 AU - 12.01 AU

Year: 21063 Days

Day: 22.8 Hours

Environment

Temp: -230 °C

Axial Tilt: 45.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 21,116,034 km

• M1: 102,026 km (0.068 R)
• M2: 2,177,547 km (0.12 R)
• M3: 4,046,323 km (0.081 R)
• M4: 5,005,395 km (0.108 R)
• M5: 5,373,107 km (0.102 R)
• M6: 8,610,704 km (0.056 R)
• M7: 9,031,971 km (0.071 R)
• M8: 18,117,349 km (0.07 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: 345 - 20,287 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit