🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.45 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.89 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 108.7

Radius: 13.9

Gravity: 0.56 G

Time & Orbit

Eccentricity (e): 0.06

Orbit Range: 0.84 AU - 0.94 AU

Year: 534 Days

Day: 9.5 Hours

Environment

Temp: -143 °C

Axial Tilt: 36.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 33,325,601 km

• M1: 172,935 km (0.07 R)
• M2: 1,481,617 km (0.106 R)
• M3: 1,948,063 km (0.095 R)
• M4: 2,465,971 km (0.048 R)
• M5: 3,113,132 km (0.096 R)
• M6: 3,616,529 km (0.074 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.92 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 62.4

Radius: 10

Gravity: 0.62 G

Time & Orbit

Eccentricity (e): 0.157

Orbit Range: 0.78 AU - 1.06 AU

Year: 561 Days

Day: 9.4 Hours

Environment

Temp: -159 °C

Axial Tilt: 115.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 33,325,601 km

• M1: 124,316 km (0.078 R)
• M2: 657,632 km (0.104 R)
• M3: 1,037,611 km (0.095 R)
• M4: 1,446,761 km (0.067 R)
• M5: 1,798,615 km (0.103 R)
• M6: 2,165,579 km (0.095 R)
• M7: 2,551,092 km (0.033 R)
• M8: 2,870,035 km (0.091 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.06 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 274.4

Radius: 14.7

Gravity: 1.27 G

Time & Orbit

Eccentricity (e): 0.201

Orbit Range: 0.85 AU - 1.27 AU

Year: 694 Days

Day: 6.7 Hours

Environment

Temp: -155 °C

Axial Tilt: 28 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 33,325,601 km

• M1: 182,809 km (0.098 R)
• M2: 692,489 km (0.071 R)
• M3: 1,382,733 km (0.096 R)
• M4: 2,226,764 km (0.116 R)
• M5: 2,701,738 km (0.084 R)
• M6: 3,166,389 km (0.079 R)
• M7: 3,759,843 km (0.091 R)
• M8: 4,399,225 km (0.113 R)
• M9: 5,380,287 km (0.036 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.17 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 672.4

Radius: 15

Gravity: 2.99 G

Time & Orbit

Eccentricity (e): 0.172

Orbit Range: 0.97 AU - 1.37 AU

Year: 805 Days

Day: 8.7 Hours

Environment

Temp: -165 °C

Axial Tilt: 31.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 33,325,601 km

• M1: 187,596 km (0.096 R)
• M2: 702,212 km (0.109 R)
• M3: 1,215,483 km (0.113 R)
• M4: 1,721,273 km (0.089 R)
• M5: 2,401,644 km (0.095 R)
• M6: 2,871,681 km (0.081 R)
• M7: 4,139,373 km (0.118 R)
• M8: 4,979,216 km (0.107 R)
• M9: 6,232,098 km (0.12 R)
• M10: 6,845,299 km (0.095 R)
• M11: 7,429,180 km (0.114 R)
• M12: 8,242,992 km (0.087 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.84 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 79.5

Radius: 13.6

Gravity: 0.43 G

Time & Orbit

Eccentricity (e): 0.088

Orbit Range: 1.68 AU - 2 AU

Year: 1587 Days

Day: 7 Hours

Environment

Temp: -187 °C

Axial Tilt: 20.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 33,325,601 km

• M1: 169,195 km (0.093 R)
• M2: 794,664 km (0.091 R)
• M3: 1,459,776 km (0.063 R)
• M4: 2,047,396 km (0.047 R)
• M5: 2,501,276 km (0.098 R)
• M6: 3,196,906 km (0.11 R)
• M7: 3,841,075 km (0.059 R)
• M8: 4,913,093 km (0.116 R)
• M9: 5,703,120 km (0.117 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.15 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 831

Radius: 13.6

Gravity: 4.49 G

Time & Orbit

Eccentricity (e): 0.205

Orbit Range: 1.71 AU - 2.59 AU

Year: 2004 Days

Day: 10.4 Hours

Environment

Temp: -185 °C

Axial Tilt: 139.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 33,325,601 km

• M1: 170,691 km (0.069 R)
• M2: 680,670 km (0.12 R)
• M3: 1,435,541 km (0.095 R)
• M4: 2,027,500 km (0.092 R)
• M5: 2,469,262 km (0.11 R)
• M6: 3,038,333 km (0.064 R)
• M7: 3,676,368 km (0.064 R)
• M8: 4,361,975 km (0.076 R)
• M9: 4,909,204 km (0.071 R)
• M10: 5,940,083 km (0.077 R)
• M11: 6,375,263 km (0.102 R)
• M12: 6,804,459 km (0.109 R)
• M13: 8,718,414 km (0.11 R)
• M14: 9,147,461 km (0.082 R)
• M15: 11,083,257 km (0.081 R)
• M16: 12,026,173 km (0.105 R)
• M17: 13,322,438 km (0.099 R)
• M18: 15,319,420 km (0.087 R)
• M19: 16,092,991 km (0.112 R)
• M20: 17,353,503 km (0.06 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.52 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 876.4

Radius: 11.3

Gravity: 6.86 G

Time & Orbit

Eccentricity (e): 0.104

Orbit Range: 2.26 AU - 2.78 AU

Year: 2544 Days

Day: 12.6 Hours

Environment

Temp: -199 °C

Axial Tilt: 15.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 33,325,601 km

• M1: 141,220 km (0.119 R)
• M2: 740,958 km (0.088 R)
• M3: 1,149,510 km (0.075 R)
• M4: 1,508,695 km (0.118 R)
• M5: 2,082,103 km (0.093 R)
• M6: 2,626,789 km (0.078 R)
• M7: 3,024,420 km (0.109 R)
• M8: 3,389,589 km (0.054 R)
• M9: 4,044,079 km (0.075 R)
• M10: 4,644,715 km (0.095 R)
• M11: 5,428,159 km (0.085 R)
• M12: 6,550,143 km (0.038 R)
• M13: 7,504,278 km (0.069 R)
• M14: 9,034,814 km (0.083 R)
• M15: 9,576,208 km (0.041 R)
• M16: 10,526,753 km (0.111 R)
• M17: 11,208,172 km (0.118 R)
• M18: 11,580,820 km (0.073 R)
• M19: 13,476,524 km (0.096 R)
• M20: 15,673,369 km (0.053 R)
• M21: 17,650,754 km (0.084 R)
• M22: 20,456,761 km (0.117 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.06 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 329.7

Radius: 7.2

Gravity: 6.36 G

Time & Orbit

Eccentricity (e): 0.096

Orbit Range: 8.19 AU - 9.93 AU

Year: 17339 Days

Day: 19.8 Hours

Environment

Temp: -223 °C

Axial Tilt: 36.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 33,325,601 km

• M1: 89,609 km (0.039 R)
• M2: 449,242 km (0.107 R)
• M3: 945,459 km (0.047 R)
• M4: 2,614,821 km (0.033 R)
• M5: 3,986,185 km (0.078 R)
• M6: 4,700,215 km (0.098 R)
• M7: 5,323,739 km (0.09 R)
• M8: 7,018,982 km (0.051 R)
• M9: 7,311,746 km (0.106 R)
• M10: 8,331,554 km (0.116 R)
• M11: 9,697,233 km (0.115 R)
• M12: 11,037,181 km (0.111 R)
• M13: 17,563,089 km (0.051 R)
• M14: 18,417,143 km (0.103 R)
• M15: 20,887,154 km (0.087 R)
• M16: 24,132,231 km (0.09 R)
• M17: 26,372,609 km (0.113 R)
• M18: 31,714,300 km (0.119 R)
• M19: 37,101,020 km (0.106 R)
• M20: 41,553,651 km (0.069 R)
• M21: 47,084,733 km (0.095 R)
• M22: 51,188,951 km (0.105 R)
• M23: 52,767,657 km (0.077 R)
• M24: 53,730,170 km (0.089 R)

Planet 9 - Ice Giant

Semi-Major Axis: 9.38 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 69

Radius: 3.2

Gravity: 6.74 G

Time & Orbit

Eccentricity (e): 0.139

Orbit Range: 8.08 AU - 10.68 AU

Year: 18266 Days

Day: 15.7 Hours

Environment

Temp: -229 °C

Axial Tilt: 25.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 33,325,601 km

• M1: 39,943 km (0.047 R)
• M2: 237,113 km (0.119 R)
• M3: 843,283 km (0.067 R)
• M4: 1,579,903 km (0.101 R)
• M5: 2,894,569 km (0.069 R)
• M6: 3,300,877 km (0.106 R)
• M7: 3,473,663 km (0.082 R)
• M8: 4,939,422 km (0.036 R)
• M9: 5,310,276 km (0.11 R)
• M10: 11,408,034 km (0.116 R)
• M11: 14,138,495 km (0.116 R)
• M12: 14,479,129 km (0.092 R)
• M13: 15,654,071 km (0.047 R)
• M14: 25,622,375 km (0.058 R)
• M15: 25,874,597 km (0.115 R)
• M16: 26,986,558 km (0.117 R)
• M17: 31,272,388 km (0.119 R)

Kuiper Belt

Range: 30 - 57 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 317 - 14,130 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit