🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.5 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.99 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 548.9

Radius: 13.2

Gravity: 3.15 G

Time & Orbit

Eccentricity (e): 0.123

Orbit Range: 0.87 AU - 1.11 AU

Year: 657 Days

Day: 6.1 Hours

Environment

Temp: -166 °C

Axial Tilt: 34.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 69,182,191 km

• M1: 164,109 km (0.072 R)
• M2: 674,088 km (0.119 R)
• M3: 1,177,485 km (0.083 R)
• M4: 1,717,384 km (0.076 R)
• M5: 2,411,218 km (0.114 R)
• M6: 3,105,053 km (0.082 R)
• M7: 3,643,606 km (0.108 R)
• M8: 4,407,901 km (0.093 R)
• M9: 5,432,347 km (0.049 R)
• M10: 6,066,792 km (0.067 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.14 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 548.5

Radius: 12.2

Gravity: 3.69 G

Time & Orbit

Eccentricity (e): 0.036

Orbit Range: 1.1 AU - 1.18 AU

Year: 812 Days

Day: 8.8 Hours

Environment

Temp: -188 °C

Axial Tilt: 37 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 69,182,191 km

• M1: 151,692 km (0.074 R)
• M2: 676,033 km (0.078 R)
• M3: 1,277,267 km (0.047 R)
• M4: 2,048,144 km (0.102 R)
• M5: 2,626,789 km (0.051 R)
• M6: 3,338,725 km (0.105 R)
• M7: 3,805,171 km (0.062 R)
• M8: 5,435,639 km (0.112 R)
• M9: 7,021,675 km (0.079 R)
• M10: 7,698,456 km (0.098 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.64 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 271

Radius: 9.6

Gravity: 2.94 G

Time & Orbit

Eccentricity (e): 0.187

Orbit Range: 1.33 AU - 1.95 AU

Year: 1401 Days

Day: 12.7 Hours

Environment

Temp: -199 °C

Axial Tilt: 20 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 69,182,191 km

• M1: 119,678 km (0.094 R)
• M2: 556,504 km (0.101 R)
• M3: 934,089 km (0.106 R)
• M4: 1,406,818 km (0.096 R)
• M5: 1,738,626 km (0.075 R)
• M6: 2,235,890 km (0.088 R)
• M7: 2,587,295 km (0.104 R)
• M8: 3,211,118 km (0.108 R)
• M9: 4,152,089 km (0.12 R)
• M10: 4,464,300 km (0.109 R)
• M11: 4,971,137 km (0.059 R)
• M12: 5,633,706 km (0.105 R)
• M13: 6,950,467 km (0.061 R)
• M14: 7,250,710 km (0.069 R)
• M15: 8,965,700 km (0.096 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 916.7

Radius: 13.2

Gravity: 5.26 G

Time & Orbit

Eccentricity (e): 0.163

Orbit Range: 2.26 AU - 3.14 AU

Year: 2959 Days

Day: 8.8 Hours

Environment

Temp: -207 °C

Axial Tilt: 34.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 69,182,191 km

• M1: 164,258 km (0.099 R)
• M2: 851,212 km (0.06 R)
• M3: 1,305,989 km (0.106 R)
• M4: 2,028,697 km (0.109 R)
• M5: 2,691,714 km (0.094 R)
• M6: 3,592,144 km (0.09 R)
• M7: 4,145,507 km (0.059 R)
• M8: 5,607,826 km (0.093 R)
• M9: 6,155,354 km (0.101 R)
• M10: 7,106,048 km (0.1 R)
• M11: 7,519,238 km (0.097 R)
• M12: 7,948,584 km (0.092 R)
• M13: 8,605,618 km (0.093 R)
• M14: 9,563,044 km (0.055 R)
• M15: 13,528,584 km (0.093 R)
• M16: 14,567,541 km (0.086 R)
• M17: 16,748,529 km (0.112 R)
• M18: 18,655,902 km (0.09 R)
• M19: 20,962,252 km (0.112 R)
• M20: 22,488,300 km (0.099 R)
• M21: 23,105,242 km (0.093 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.29 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 836.7

Radius: 14.7

Gravity: 3.87 G

Time & Orbit

Eccentricity (e): 0.227

Orbit Range: 3.32 AU - 5.26 AU

Year: 5925 Days

Day: 14.3 Hours

Environment

Temp: -227 °C

Axial Tilt: 49.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 69,182,191 km

• M1: 194,627 km (0.102 R)
• M2: 673,789 km (0.076 R)
• M3: 1,193,193 km (0.038 R)
• M4: 1,778,270 km (0.109 R)
• M5: 2,416,155 km (0.075 R)
• M6: 3,592,892 km (0.08 R)
• M7: 4,544,783 km (0.109 R)
• M8: 5,783,154 km (0.094 R)
• M9: 7,127,441 km (0.099 R)
• M10: 7,644,451 km (0.098 R)
• M11: 9,699,178 km (0.076 R)
• M12: 11,096,572 km (0.117 R)
• M13: 12,413,033 km (0.109 R)
• M14: 14,697,243 km (0.069 R)
• M15: 15,476,797 km (0.088 R)
• M16: 18,253,334 km (0.028 R)
• M17: 19,295,582 km (0.12 R)
• M18: 21,346,868 km (0.119 R)
• M19: 21,881,681 km (0.111 R)
• M20: 24,358,572 km (0.044 R)
• M21: 26,488,098 km (0.07 R)
• M22: 28,462,341 km (0.102 R)
• M23: 29,204,197 km (0.081 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 391.8

Radius: 13.7

Gravity: 2.09 G

Time & Orbit

Eccentricity (e): 0.008

Orbit Range: 4.65 AU - 4.73 AU

Year: 6773 Days

Day: 8.8 Hours

Environment

Temp: -232 °C

Axial Tilt: 10.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 69,182,191 km

• M1: 170,392 km (0.068 R)
• M2: 652,995 km (0.097 R)
• M3: 1,088,325 km (0.04 R)
• M4: 1,844,841 km (0.11 R)
• M5: 2,320,113 km (0.11 R)
• M6: 4,636,786 km (0.059 R)
• M7: 5,415,443 km (0.077 R)
• M8: 7,165,289 km (0.095 R)
• M9: 7,984,038 km (0.099 R)
• M10: 10,637,456 km (0.09 R)
• M11: 11,751,511 km (0.098 R)
• M12: 12,536,302 km (0.086 R)
• M13: 13,566,283 km (0.103 R)
• M14: 13,993,834 km (0.104 R)
• M15: 16,030,309 km (0.117 R)
• M16: 19,043,809 km (0.114 R)
• M17: 22,048,033 km (0.108 R)
• M18: 25,194,525 km (0.106 R)
• M19: 26,582,943 km (0.094 R)
• M20: 27,084,994 km (0.067 R)
• M21: 28,194,411 km (0.074 R)
• M22: 29,690,689 km (0.056 R)
• M23: 30,412,948 km (0.09 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.09 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 217.5

Radius: 5.8

Gravity: 6.47 G

Time & Orbit

Eccentricity (e): 0.042

Orbit Range: 6.79 AU - 7.39 AU

Year: 12589 Days

Day: 22.3 Hours

Environment

Temp: -235 °C

Axial Tilt: 32.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 69,182,191 km

• M1: 72,106 km (0.065 R)
• M2: 265,835 km (0.079 R)
• M3: 673,938 km (0.071 R)
• M4: 1,402,779 km (0.085 R)
• M5: 1,634,806 km (0.061 R)
• M6: 1,953,150 km (0.059 R)
• M7: 2,294,831 km (0.102 R)
• M8: 2,931,969 km (0.098 R)
• M9: 6,648,129 km (0.08 R)
• M10: 8,374,190 km (0.099 R)
• M11: 10,283,358 km (0.117 R)
• M12: 12,357,083 km (0.088 R)
• M13: 17,042,040 km (0.103 R)
• M14: 20,748,327 km (0.067 R)
• M15: 22,546,344 km (0.084 R)
• M16: 26,360,042 km (0.079 R)
• M17: 27,080,207 km (0.047 R)
• M18: 33,216,562 km (0.099 R)
• M19: 36,439,199 km (0.101 R)
• M20: 37,445,245 km (0.057 R)
• M21: 37,671,287 km (0.1 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.41 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 385.4

Radius: 4.3

Gravity: 20.84 G

Time & Orbit

Eccentricity (e): 0.027

Orbit Range: 7.21 AU - 7.61 AU

Year: 13451 Days

Day: 24.3 Hours

Environment

Temp: -234 °C

Axial Tilt: 26.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 69,182,191 km

• M1: 59,540 km (0.062 R)
• M2: 236,365 km (0.096 R)
• M3: 421,716 km (0.038 R)
• M4: 1,033,422 km (0.082 R)
• M5: 1,544,598 km (0.116 R)
• M6: 1,722,171 km (0.105 R)
• M7: 2,675,558 km (0.091 R)
• M8: 2,976,998 km (0.086 R)
• M9: 3,159,208 km (0.099 R)
• M10: 3,300,727 km (0.107 R)
• M11: 3,471,119 km (0.113 R)
• M12: 3,882,962 km (0.057 R)
• M13: 4,711,136 km (0.112 R)
• M14: 5,313,866 km (0.094 R)
• M15: 6,480,281 km (0.081 R)
• M16: 7,103,056 km (0.101 R)
• M17: 7,936,466 km (0.062 R)
• M18: 8,421,612 km (0.096 R)
• M19: 10,353,369 km (0.096 R)
• M20: 12,327,762 km (0.073 R)
• M21: 13,219,814 km (0.119 R)
• M22: 15,198,096 km (0.08 R)
• M23: 20,049,555 km (0.096 R)
• M24: 22,560,406 km (0.083 R)
• M25: 22,998,279 km (0.108 R)
• M26: 26,223,310 km (0.109 R)
• M27: 27,493,994 km (0.085 R)
• M28: 30,263,500 km (0.065 R)
• M29: 32,430,874 km (0.095 R)
• M30: 33,893,791 km (0.048 R)
• M31: 35,165,672 km (0.096 R)
• M32: 43,335,960 km (0.036 R)
• M33: 44,558,324 km (0.117 R)
• M34: 44,832,986 km (0.047 R)
• M35: 45,663,852 km (0.082 R)
• M36: 46,646,262 km (0.063 R)

Planet 9 - Ice Giant

Semi-Major Axis: 9.03 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 629

Radius: 6.4

Gravity: 15.36 G

Time & Orbit

Eccentricity (e): 0.186

Orbit Range: 7.35 AU - 10.71 AU

Year: 18095 Days

Day: 20.3 Hours

Environment

Temp: -234 °C

Axial Tilt: 35 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 69,182,191 km

• M1: 81,082 km (0.09 R)
• M2: 308,172 km (0.063 R)
• M3: 538,702 km (0.117 R)
• M4: 1,351,018 km (0.083 R)
• M5: 2,280,919 km (0.055 R)
• M6: 2,518,031 km (0.06 R)
• M7: 2,892,624 km (0.108 R)
• M8: 5,054,314 km (0.108 R)
• M9: 6,631,823 km (0.064 R)
• M10: 7,346,003 km (0.065 R)
• M11: 8,460,807 km (0.103 R)
• M12: 13,423,267 km (0.068 R)
• M13: 14,562,455 km (0.091 R)
• M14: 18,279,513 km (0.094 R)
• M15: 19,676,608 km (0.077 R)
• M16: 22,583,594 km (0.107 R)
• M17: 25,127,057 km (0.097 R)
• M18: 28,081,615 km (0.116 R)
• M19: 28,999,697 km (0.11 R)
• M20: 29,232,322 km (0.09 R)
• M21: 29,701,161 km (0.029 R)
• M22: 31,016,575 km (0.103 R)
• M23: 37,763,888 km (0.039 R)
• M24: 39,164,723 km (0.108 R)
• M25: 45,427,189 km (0.036 R)
• M26: 49,953,272 km (0.099 R)
• M27: 51,981,819 km (0.113 R)
• M28: 60,266,849 km (0.083 R)
• M29: 61,217,094 km (0.089 R)
• M30: 68,768,346 km (0.067 R)

Kuiper Belt

Range: 30 - 52 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 230 - 17,788 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit