🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.27 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.54 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 474

Radius: 9.5

Gravity: 5.25 G

Time & Orbit

Eccentricity (e): 0.138

Orbit Range: 0.47 AU - 0.61 AU

Year: 279 Days

Day: 6.5 Hours

Environment

Temp: -135 °C

Axial Tilt: 28.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 82,140,742 km

• M1: 118,182 km (0.101 R)
• M2: 429,346 km (0.096 R)
• M3: 743,801 km (0.086 R)
• M4: 1,109,418 km (0.05 R)
• M5: 1,506,151 km (0.082 R)
• M6: 1,891,964 km (0.111 R)
• M7: 2,195,349 km (0.112 R)
• M8: 2,523,267 km (0.069 R)
• M9: 2,883,798 km (0.077 R)
• M10: 3,742,789 km (0.118 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 257.4

Radius: 10

Gravity: 2.57 G

Time & Orbit

Eccentricity (e): 0.231

Orbit Range: 0.62 AU - 0.98 AU

Year: 503 Days

Day: 12.5 Hours

Environment

Temp: -160 °C

Axial Tilt: 47.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 82,140,742 km

• M1: 124,465 km (0.1 R)
• M2: 504,743 km (0.116 R)
• M3: 921,672 km (0.074 R)
• M4: 1,332,917 km (0.088 R)
• M5: 2,252,046 km (0.082 R)
• M6: 2,654,465 km (0.077 R)
• M7: 3,469,474 km (0.075 R)
• M8: 4,351,353 km (0.087 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.82 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 885.8

Radius: 13

Gravity: 5.24 G

Time & Orbit

Eccentricity (e): 0.169

Orbit Range: 0.68 AU - 0.96 AU

Year: 522 Days

Day: 13.5 Hours

Environment

Temp: -159 °C

Axial Tilt: 48.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 82,140,742 km

• M1: 161,715 km (0.096 R)
• M2: 660,475 km (0.118 R)
• M3: 1,335,311 km (0.118 R)
• M4: 2,005,060 km (0.091 R)
• M5: 2,725,075 km (0.078 R)
• M6: 3,280,083 km (0.1 R)
• M7: 3,937,715 km (0.037 R)
• M8: 4,697,972 km (0.073 R)
• M9: 5,553,671 km (0.113 R)
• M10: 6,218,484 km (0.086 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.39 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 476.5

Radius: 14.5

Gravity: 2.27 G

Time & Orbit

Eccentricity (e): 0.058

Orbit Range: 1.31 AU - 1.47 AU

Year: 1152 Days

Day: 5.8 Hours

Environment

Temp: -198 °C

Axial Tilt: 47.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 82,140,742 km

• M1: 180,265 km (0.097 R)
• M2: 959,970 km (0.057 R)
• M3: 1,474,885 km (0.079 R)
• M4: 1,989,801 km (0.095 R)
• M5: 2,443,831 km (0.103 R)
• M6: 3,058,080 km (0.073 R)
• M7: 3,714,515 km (0.054 R)
• M8: 4,329,512 km (0.062 R)
• M9: 5,745,306 km (0.098 R)
• M10: 6,330,533 km (0.087 R)
• M11: 6,818,222 km (0.069 R)
• M12: 8,097,434 km (0.117 R)
• M13: 9,474,183 km (0.107 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 720.6

Radius: 11.6

Gravity: 5.36 G

Time & Orbit

Eccentricity (e): 0.138

Orbit Range: 1.51 AU - 1.99 AU

Year: 1627 Days

Day: 6.3 Hours

Environment

Temp: -193 °C

Axial Tilt: 31.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 82,140,742 km

• M1: 144,362 km (0.079 R)
• M2: 740,210 km (0.094 R)
• M3: 1,508,395 km (0.091 R)
• M4: 1,975,141 km (0.114 R)
• M5: 2,980,289 km (0.102 R)
• M6: 3,775,850 km (0.056 R)
• M7: 4,393,989 km (0.055 R)
• M8: 4,829,318 km (0.036 R)
• M9: 5,249,838 km (0.093 R)
• M10: 5,626,526 km (0.049 R)
• M11: 5,997,528 km (0.094 R)
• M12: 6,712,008 km (0.095 R)
• M13: 7,989,573 km (0.107 R)
• M14: 8,429,690 km (0.077 R)
• M15: 9,073,111 km (0.109 R)
• M16: 9,683,021 km (0.086 R)
• M17: 10,149,916 km (0.102 R)
• M18: 10,807,549 km (0.106 R)
• M19: 11,941,351 km (0.118 R)
• M20: 12,517,602 km (0.04 R)
• M21: 13,274,118 km (0.081 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.04 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 435.1

Radius: 9.1

Gravity: 5.25 G

Time & Orbit

Eccentricity (e): 0.045

Orbit Range: 4.81 AU - 5.27 AU

Year: 7953 Days

Day: 5.3 Hours

Environment

Temp: -222 °C

Axial Tilt: 3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 82,140,742 km

• M1: 113,246 km (0.104 R)
• M2: 576,550 km (0.1 R)
• M3: 903,870 km (0.057 R)
• M4: 1,268,440 km (0.062 R)
• M5: 1,913,506 km (0.101 R)
• M6: 2,352,726 km (0.076 R)
• M7: 2,725,224 km (0.12 R)
• M8: 4,441,411 km (0.101 R)
• M9: 5,185,810 km (0.116 R)
• M10: 6,438,543 km (0.084 R)
• M11: 6,780,972 km (0.104 R)
• M12: 8,515,859 km (0.115 R)
• M13: 9,226,149 km (0.084 R)
• M14: 9,617,946 km (0.071 R)
• M15: 10,295,475 km (0.079 R)
• M16: 10,860,207 km (0.09 R)
• M17: 11,297,182 km (0.087 R)
• M18: 11,645,147 km (0.053 R)
• M19: 12,731,976 km (0.097 R)
• M20: 14,400,141 km (0.105 R)
• M21: 15,407,533 km (0.07 R)
• M22: 15,959,550 km (0.063 R)
• M23: 16,461,301 km (0.093 R)
• M24: 19,410,773 km (0.076 R)
• M25: 20,786,923 km (0.094 R)
• M26: 25,474,273 km (0.1 R)
• M27: 25,815,506 km (0.104 R)
• M28: 26,332,965 km (0.099 R)
• M29: 27,388,677 km (0.107 R)
• M30: 30,532,925 km (0.077 R)
• M31: 31,993,599 km (0.111 R)
• M32: 34,322,838 km (0.079 R)
• M33: 35,370,023 km (0.091 R)

Asteroid Belt

Center: 5.88 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 7 - Ice Giant

Semi-Major Axis: 6.72 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 361.4

Radius: 6.2

Gravity: 9.4 G

Time & Orbit

Eccentricity (e): 0.026

Orbit Range: 6.55 AU - 6.89 AU

Year: 12245 Days

Day: 16.2 Hours

Environment

Temp: -225 °C

Axial Tilt: 21 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 82,140,742 km

• M1: 80,184 km (0.091 R)
• M2: 294,558 km (0.035 R)
• M3: 629,657 km (0.108 R)
• M4: 863,928 km (0.097 R)
• M5: 1,190,201 km (0.068 R)
• M6: 1,624,483 km (0.071 R)
• M7: 2,056,971 km (0.061 R)
• M8: 3,060,623 km (0.052 R)
• M9: 3,694,768 km (0.119 R)
• M10: 4,940,769 km (0.089 R)
• M11: 5,188,503 km (0.089 R)
• M12: 5,412,152 km (0.062 R)
• M13: 6,517,381 km (0.109 R)
• M14: 6,891,824 km (0.11 R)
• M15: 7,123,252 km (0.076 R)
• M16: 8,229,528 km (0.07 R)
• M17: 8,711,533 km (0.119 R)
• M18: 9,027,932 km (0.073 R)
• M19: 10,370,872 km (0.116 R)
• M20: 10,933,211 km (0.082 R)
• M21: 12,062,824 km (0.118 R)
• M22: 13,747,895 km (0.071 R)
• M23: 14,301,108 km (0.12 R)
• M24: 14,551,834 km (0.034 R)
• M25: 17,081,234 km (0.071 R)
• M26: 18,009,788 km (0.032 R)
• M27: 20,517,498 km (0.103 R)
• M28: 20,916,774 km (0.111 R)
• M29: 25,016,803 km (0.09 R)
• M30: 27,736,941 km (0.093 R)
• M31: 29,723,751 km (0.103 R)
• M32: 30,855,907 km (0.114 R)
• M33: 34,312,815 km (0.089 R)
• M34: 39,598,257 km (0.077 R)
• M35: 43,802,107 km (0.099 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.96 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 283.3

Radius: 6.5

Gravity: 6.71 G

Time & Orbit

Eccentricity (e): 0.192

Orbit Range: 6.43 AU - 9.49 AU

Year: 15786 Days

Day: 20.3 Hours

Environment

Temp: -236 °C

Axial Tilt: 33.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 82,140,742 km

• M1: 82,428 km (0.107 R)
• M2: 297,999 km (0.116 R)
• M3: 534,962 km (0.1 R)
• M4: 940,223 km (0.103 R)
• M5: 1,347,129 km (0.036 R)
• M6: 1,914,404 km (0.077 R)
• M7: 3,082,464 km (0.114 R)
• M8: 4,198,315 km (0.055 R)
• M9: 4,878,387 km (0.072 R)
• M10: 5,802,453 km (0.101 R)
• M11: 6,014,882 km (0.05 R)
• M12: 6,343,099 km (0.114 R)
• M13: 7,317,879 km (0.096 R)
• M14: 9,708,453 km (0.105 R)
• M15: 10,626,386 km (0.105 R)
• M16: 11,324,409 km (0.067 R)
• M17: 16,448,136 km (0.106 R)
• M18: 18,962,129 km (0.094 R)
• M19: 20,391,536 km (0.086 R)
• M20: 20,966,291 km (0.089 R)
• M21: 21,636,340 km (0.1 R)
• M22: 23,019,223 km (0.115 R)
• M23: 24,003,427 km (0.119 R)
• M24: 27,919,451 km (0.109 R)
• M25: 32,908,839 km (0.09 R)
• M26: 36,386,092 km (0.113 R)
• M27: 39,973,000 km (0.109 R)
• M28: 43,382,934 km (0.069 R)
• M29: 47,696,289 km (0.098 R)

Planet 9 - Ice Giant

Semi-Major Axis: 9.88 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 723.4

Radius: 6.2

Gravity: 18.82 G

Time & Orbit

Eccentricity (e): 0.067

Orbit Range: 9.22 AU - 10.54 AU

Year: 21829 Days

Day: 18.1 Hours

Environment

Temp: -240 °C

Axial Tilt: 13.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 82,140,742 km

• M1: 110,403 km (0.063 R)
• M2: 667,057 km (0.035 R)
• M3: 927,357 km (0.09 R)
• M4: 1,183,469 km (0.086 R)
• M5: 1,453,942 km (0.115 R)
• M6: 2,972,958 km (0.066 R)
• M7: 5,448,205 km (0.03 R)
• M8: 5,650,611 km (0.112 R)
• M9: 5,942,476 km (0.053 R)
• M10: 6,200,533 km (0.05 R)
• M11: 6,556,276 km (0.111 R)
• M12: 7,807,214 km (0.107 R)
• M13: 9,731,790 km (0.09 R)
• M14: 11,286,262 km (0.077 R)
• M15: 13,434,786 km (0.116 R)
• M16: 16,338,481 km (0.028 R)
• M17: 17,363,376 km (0.075 R)
• M18: 18,070,076 km (0.118 R)
• M19: 24,869,449 km (0.042 R)
• M20: 26,108,868 km (0.036 R)
• M21: 26,569,629 km (0.106 R)
• M22: 27,153,061 km (0.119 R)
• M23: 28,832,446 km (0.113 R)
• M24: 40,691,518 km (0.105 R)
• M25: 42,093,699 km (0.047 R)
• M26: 43,850,876 km (0.084 R)
• M27: 44,175,503 km (0.094 R)
• M28: 45,656,223 km (0.104 R)
• M29: 58,909,996 km (0.109 R)
• M30: 70,214,509 km (0.083 R)
• M31: 73,593,177 km (0.142 R)
• M32: 78,264,370 km (0.041 R)

Kuiper Belt

Range: 30 - 56 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 355 - 15,440 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit