🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.34 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.67 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 601.9

Radius: 11.5

Gravity: 4.55 G

Time & Orbit

Eccentricity (e): 0.074

Orbit Range: 0.62 AU - 0.72 AU

Year: 385 Days

Day: 10.6 Hours

Environment

Temp: -165 °C

Axial Tilt: 31.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 88,898,977 km

• M1: 143,016 km (0.109 R)
• M2: 626,217 km (0.104 R)
• M3: 1,173,745 km (0.091 R)
• M4: 1,542,504 km (0.046 R)
• M5: 1,982,471 km (0.094 R)
• M6: 2,433,509 km (0.081 R)
• M7: 3,035,939 km (0.109 R)
• M8: 3,568,657 km (0.087 R)
• M9: 4,098,383 km (0.064 R)
• M10: 4,708,294 km (0.057 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.74 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 917.6

Radius: 14.7

Gravity: 4.25 G

Time & Orbit

Eccentricity (e): 0.201

Orbit Range: 1.39 AU - 2.09 AU

Year: 1613 Days

Day: 12.6 Hours

Environment

Temp: -202 °C

Axial Tilt: 8.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 88,898,977 km

• M1: 182,809 km (0.095 R)
• M2: 749,186 km (0.092 R)
• M3: 1,699,133 km (0.059 R)
• M4: 2,371,575 km (0.108 R)
• M5: 2,842,958 km (0.099 R)
• M6: 3,889,245 km (0.083 R)
• M7: 5,745,456 km (0.104 R)
• M8: 6,633,918 km (0.104 R)
• M9: 7,111,584 km (0.093 R)
• M10: 9,064,135 km (0.064 R)
• M11: 10,026,797 km (0.106 R)
• M12: 13,747,596 km (0.065 R)
• M13: 14,307,840 km (0.076 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.34 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 481.5

Radius: 13.6

Gravity: 2.6 G

Time & Orbit

Eccentricity (e): 0.204

Orbit Range: 1.86 AU - 2.82 AU

Year: 2516 Days

Day: 11.8 Hours

Environment

Temp: -198 °C

Axial Tilt: 16.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 88,898,977 km

• M1: 169,195 km (0.056 R)
• M2: 660,475 km (0.115 R)
• M3: 1,151,455 km (0.111 R)
• M4: 1,611,468 km (0.098 R)
• M5: 2,283,911 km (0.088 R)
• M6: 3,075,283 km (0.067 R)
• M7: 3,622,961 km (0.115 R)
• M8: 4,235,565 km (0.115 R)
• M9: 6,393,813 km (0.034 R)
• M10: 6,873,873 km (0.109 R)
• M11: 8,587,067 km (0.088 R)
• M12: 9,306,334 km (0.085 R)
• M13: 9,854,461 km (0.061 R)
• M14: 10,351,724 km (0.117 R)
• M15: 11,984,585 km (0.104 R)
• M16: 14,092,419 km (0.106 R)
• M17: 14,770,396 km (0.081 R)
• M18: 16,191,576 km (0.11 R)

Planet 4 - Gas Giant

Semi-Major Axis: 4.68 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 923.8

Radius: 8.3

Gravity: 13.41 G

Time & Orbit

Eccentricity (e): 0.086

Orbit Range: 4.28 AU - 5.08 AU

Year: 7117 Days

Day: 5.1 Hours

Environment

Temp: -228 °C

Axial Tilt: 16.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 88,898,977 km

• M1: 106,364 km (0.082 R)
• M2: 471,383 km (0.048 R)
• M3: 1,333,665 km (0.066 R)
• M4: 1,971,251 km (0.04 R)
• M5: 3,991,870 km (0.11 R)
• M6: 4,531,320 km (0.061 R)
• M7: 5,118,342 km (0.091 R)
• M8: 6,443,629 km (0.115 R)
• M9: 6,995,196 km (0.096 R)
• M10: 7,458,800 km (0.069 R)
• M11: 8,577,044 km (0.084 R)
• M12: 9,850,571 km (0.11 R)
• M13: 11,882,409 km (0.117 R)
• M14: 13,285,637 km (0.114 R)
• M15: 15,495,497 km (0.093 R)
• M16: 16,755,410 km (0.083 R)
• M17: 18,154,150 km (0.075 R)
• M18: 18,442,874 km (0.117 R)
• M19: 21,988,493 km (0.117 R)
• M20: 29,094,392 km (0.03 R)
• M21: 31,836,072 km (0.12 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.78 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 832.4

Radius: 12.8

Gravity: 5.08 G

Time & Orbit

Eccentricity (e): 0.204

Orbit Range: 3.8 AU - 5.76 AU

Year: 7346 Days

Day: 11.5 Hours

Environment

Temp: -221 °C

Axial Tilt: 7.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 88,898,977 km

• M1: 160,668 km (0.098 R)
• M2: 711,487 km (0.12 R)
• M3: 1,119,441 km (0.082 R)
• M4: 1,557,164 km (0.043 R)
• M5: 2,774,592 km (0.113 R)
• M6: 3,480,544 km (0.028 R)
• M7: 3,964,643 km (0.103 R)
• M8: 4,521,446 km (0.085 R)
• M9: 5,251,932 km (0.108 R)
• M10: 5,925,123 km (0.067 R)
• M11: 6,619,107 km (0.064 R)
• M12: 7,023,620 km (0.079 R)
• M13: 8,507,033 km (0.085 R)
• M14: 10,433,703 km (0.065 R)
• M15: 12,974,324 km (0.099 R)
• M16: 19,619,312 km (0.119 R)
• M17: 21,719,367 km (0.048 R)
• M18: 25,545,931 km (0.095 R)
• M19: 26,822,599 km (0.076 R)
• M20: 28,045,861 km (0.114 R)
• M21: 30,099,840 km (0.119 R)
• M22: 32,042,966 km (0.069 R)
• M23: 33,205,491 km (0.06 R)
• M24: 34,177,429 km (0.063 R)
• M25: 34,946,362 km (0.039 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.22 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 283.4

Radius: 10.9

Gravity: 2.39 G

Time & Orbit

Eccentricity (e): 0.2

Orbit Range: 4.18 AU - 6.26 AU

Year: 8383 Days

Day: 14.7 Hours

Environment

Temp: -224 °C

Axial Tilt: 7.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 88,898,977 km

• M1: 161,865 km (0.102 R)
• M2: 691,292 km (0.103 R)
• M3: 1,123,779 km (0.107 R)
• M4: 1,829,881 km (0.083 R)
• M5: 3,654,377 km (0.052 R)
• M6: 4,064,275 km (0.078 R)
• M7: 4,530,422 km (0.095 R)
• M8: 4,869,710 km (0.048 R)
• M9: 8,193,475 km (0.053 R)
• M10: 8,779,001 km (0.052 R)
• M11: 9,226,000 km (0.095 R)
• M12: 10,298,617 km (0.088 R)
• M13: 11,596,528 km (0.084 R)
• M14: 17,126,862 km (0.111 R)
• M15: 18,149,962 km (0.054 R)
• M16: 18,742,968 km (0.116 R)
• M17: 19,145,535 km (0.103 R)
• M18: 19,691,269 km (0.069 R)
• M19: 20,458,556 km (0.097 R)
• M20: 22,426,366 km (0.11 R)
• M21: 23,186,174 km (0.068 R)
• M22: 27,331,082 km (0.107 R)
• M23: 29,352,299 km (0.109 R)
• M24: 30,723,064 km (0.107 R)
• M25: 31,565,749 km (0.069 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.25 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 386.3

Radius: 4.1

Gravity: 22.98 G

Time & Orbit

Eccentricity (e): 0.25

Orbit Range: 5.44 AU - 9.06 AU

Year: 13722 Days

Day: 15.9 Hours

Environment

Temp: -225 °C

Axial Tilt: 34 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 88,898,977 km

• M1: 67,020 km (0.055 R)
• M2: 251,025 km (0.057 R)
• M3: 430,243 km (0.114 R)
• M4: 607,367 km (0.086 R)
• M5: 805,136 km (0.103 R)
• M6: 1,055,862 km (0.08 R)
• M7: 1,205,759 km (0.055 R)
• M8: 2,273,588 km (0.087 R)
• M9: 9,435,138 km (0.038 R)
• M10: 9,931,653 km (0.119 R)
• M11: 14,809,292 km (0.106 R)
• M12: 32,108,341 km (0.104 R)
• M13: 36,863,309 km (0.114 R)
• M14: 39,471,099 km (0.087 R)

Planet 8 - Ice Giant

Semi-Major Axis: 8.49 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 781.4

Radius: 3.4

Gravity: 67.6 G

Time & Orbit

Eccentricity (e): 0.205

Orbit Range: 6.75 AU - 10.23 AU

Year: 17389 Days

Day: 23.9 Hours

Environment

Temp: -224 °C

Axial Tilt: 8.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 88,898,977 km

• M1: 43,683 km (0.078 R)
• M2: 155,283 km (0.084 R)
• M3: 262,993 km (0.069 R)
• M4: 538,702 km (0.066 R)
• M5: 1,228,348 km (0.079 R)
• M6: 1,389,315 km (0.094 R)
• M7: 1,514,978 km (0.093 R)
• M8: 1,996,533 km (0.061 R)
• M9: 2,157,052 km (0.084 R)
• M10: 2,963,085 km (0.108 R)
• M11: 3,951,628 km (0.08 R)
• M12: 4,922,069 km (0.102 R)
• M13: 5,918,391 km (0.085 R)
• M14: 6,681,938 km (0.111 R)
• M15: 6,950,616 km (0.104 R)
• M16: 8,097,134 km (0.114 R)
• M17: 8,768,081 km (0.109 R)
• M18: 10,102,494 km (0.061 R)
• M19: 10,219,479 km (0.109 R)
• M20: 12,150,339 km (0.104 R)
• M21: 13,517,364 km (0.045 R)
• M22: 13,730,841 km (0.115 R)
• M23: 19,105,443 km (0.115 R)
• M24: 20,011,558 km (0.108 R)
• M25: 22,203,914 km (0.099 R)
• M26: 24,762,487 km (0.113 R)
• M27: 35,189,309 km (0.074 R)
• M28: 37,519,445 km (0.088 R)
• M29: 44,649,878 km (0.107 R)
• M30: 45,440,802 km (0.068 R)
• M31: 47,704,966 km (0.061 R)
• M32: 55,127,264 km (0.085 R)

Planet 9 - Ice Giant

Semi-Major Axis: 10.06 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 868.7

Radius: 5.9

Gravity: 24.96 G

Time & Orbit

Eccentricity (e): 0.092

Orbit Range: 9.13 AU - 10.99 AU

Year: 22429 Days

Day: 18.5 Hours

Environment

Temp: -228 °C

Axial Tilt: 4.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 88,898,977 km

• M1: 73,303 km (0.079 R)
• M2: 349,760 km (0.109 R)
• M3: 1,395,748 km (0.12 R)
• M4: 2,129,675 km (0.106 R)
• M5: 2,984,029 km (0.04 R)
• M6: 4,047,370 km (0.114 R)
• M7: 7,185,036 km (0.109 R)
• M8: 8,006,777 km (0.034 R)
• M9: 13,222,806 km (0.105 R)
• M10: 13,751,635 km (0.026 R)
• M11: 23,577,522 km (0.105 R)
• M12: 24,579,828 km (0.101 R)
• M13: 31,865,094 km (0.098 R)
• M14: 38,301,094 km (0.093 R)
• M15: 44,368,634 km (0.117 R)
• M16: 55,009,381 km (0.119 R)
• M17: 59,579,596 km (0.086 R)
• M18: 63,328,070 km (0.112 R)
• M19: 65,259,827 km (0.046 R)
• M20: 69,015,482 km (0.116 R)
• M21: 69,692,861 km (0.078 R)
• M22: 71,290,716 km (0.071 R)
• M23: 73,146,328 km (0.174 R)
• M24: 74,559,130 km (0.221 R)
• M25: 80,392,250 km (0.222 R)

Kuiper Belt

Range: 30 - 46 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 306 - 11,880 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit