🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.45 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.9 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 764.8

Radius: 11.4

Gravity: 5.88 G

Time & Orbit

Eccentricity (e): 0.188

Orbit Range: 0.73 AU - 1.07 AU

Year: 589 Days

Day: 13 Hours

Environment

Temp: -166 °C

Axial Tilt: 116.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 44,490,278 km

• M1: 141,819 km (0.112 R)
• M2: 522,097 km (0.114 R)
• M3: 953,836 km (0.107 R)
• M4: 1,613,413 km (0.103 R)
• M5: 2,142,989 km (0.071 R)
• M6: 2,537,629 km (0.095 R)
• M7: 3,184,789 km (0.085 R)
• M8: 3,743,388 km (0.098 R)
• M9: 4,382,021 km (0.089 R)
• M10: 4,874,347 km (0.076 R)
• M11: 5,728,252 km (0.08 R)
• M12: 6,162,086 km (0.105 R)
• M13: 6,990,260 km (0.04 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.94 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 908.2

Radius: 9.3

Gravity: 10.5 G

Time & Orbit

Eccentricity (e): 0.097

Orbit Range: 0.85 AU - 1.03 AU

Year: 629 Days

Day: 9.9 Hours

Environment

Temp: -170 °C

Axial Tilt: 5.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 44,490,278 km

• M1: 115,639 km (0.091 R)
• M2: 416,181 km (0.094 R)
• M3: 773,271 km (0.114 R)
• M4: 1,205,160 km (0.051 R)
• M5: 1,854,565 km (0.104 R)
• M6: 2,585,949 km (0.083 R)
• M7: 3,245,675 km (0.082 R)
• M8: 3,636,425 km (0.103 R)
• M9: 6,469,809 km (0.116 R)
• M10: 8,012,911 km (0.036 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.24 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 242.1

Radius: 9.5

Gravity: 2.68 G

Time & Orbit

Eccentricity (e): 0.016

Orbit Range: 1.22 AU - 1.26 AU

Year: 953 Days

Day: 9.2 Hours

Environment

Temp: -181 °C

Axial Tilt: 6.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 44,490,278 km

• M1: 118,482 km (0.111 R)
• M2: 448,046 km (0.089 R)
• M3: 849,267 km (0.078 R)
• M4: 1,440,029 km (0.098 R)
• M5: 1,840,203 km (0.11 R)
• M6: 2,190,711 km (0.102 R)
• M7: 2,638,458 km (0.095 R)
• M8: 2,958,597 km (0.04 R)
• M9: 3,468,726 km (0.114 R)
• M10: 4,122,618 km (0.086 R)
• M11: 4,602,678 km (0.049 R)
• M12: 4,954,083 km (0.08 R)
• M13: 5,603,338 km (0.11 R)
• M14: 6,136,205 km (0.092 R)
• M15: 6,642,295 km (0.044 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 755.6

Radius: 9.3

Gravity: 8.74 G

Time & Orbit

Eccentricity (e): 0.132

Orbit Range: 2.37 AU - 3.09 AU

Year: 3114 Days

Day: 9.7 Hours

Environment

Temp: -212 °C

Axial Tilt: 18.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 44,490,278 km

• M1: 127,757 km (0.055 R)
• M2: 428,598 km (0.087 R)
• M3: 907,161 km (0.093 R)
• M4: 1,216,380 km (0.085 R)
• M5: 1,978,881 km (0.101 R)
• M6: 2,650,425 km (0.114 R)
• M7: 3,298,334 km (0.118 R)
• M8: 3,660,211 km (0.108 R)
• M9: 4,740,906 km (0.115 R)
• M10: 5,128,215 km (0.06 R)
• M11: 5,884,133 km (0.071 R)
• M12: 6,954,057 km (0.098 R)
• M13: 7,846,408 km (0.104 R)
• M14: 11,835,884 km (0.089 R)
• M15: 14,918,648 km (0.096 R)
• M16: 18,558,663 km (0.11 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 70.1

Radius: 8.9

Gravity: 0.88 G

Time & Orbit

Eccentricity (e): 0.132

Orbit Range: 3.56 AU - 4.64 AU

Year: 5730 Days

Day: 14.8 Hours

Environment

Temp: -224 °C

Axial Tilt: 3.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 44,490,278 km

• M1: 118,033 km (0.113 R)
• M2: 590,762 km (0.114 R)
• M3: 1,138,440 km (0.105 R)
• M4: 1,566,888 km (0.084 R)
• M5: 1,962,126 km (0.117 R)
• M6: 3,914,228 km (0.112 R)
• M7: 4,250,823 km (0.082 R)
• M8: 5,133,750 km (0.056 R)
• M9: 6,283,559 km (0.056 R)
• M10: 6,667,577 km (0.072 R)
• M11: 7,040,225 km (0.067 R)
• M12: 7,856,282 km (0.094 R)
• M13: 9,442,468 km (0.114 R)
• M14: 10,900,598 km (0.109 R)
• M15: 11,493,754 km (0.116 R)
• M16: 13,655,443 km (0.079 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.41 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 695.8

Radius: 11.9

Gravity: 4.91 G

Time & Orbit

Eccentricity (e): 0.178

Orbit Range: 3.63 AU - 5.19 AU

Year: 6392 Days

Day: 7.4 Hours

Environment

Temp: -230 °C

Axial Tilt: 15.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 44,490,278 km

• M1: 148,102 km (0.118 R)
• M2: 569,968 km (0.025 R)
• M3: 1,498,671 km (0.078 R)
• M4: 1,951,654 km (0.074 R)
• M5: 3,079,023 km (0.115 R)
• M6: 5,359,643 km (0.116 R)
• M7: 5,848,828 km (0.115 R)
• M8: 10,246,108 km (0.071 R)
• M9: 11,845,459 km (0.082 R)
• M10: 13,327,973 km (0.111 R)
• M11: 19,423,937 km (0.114 R)
• M12: 21,102,425 km (0.089 R)
• M13: 21,631,852 km (0.097 R)
• M14: 22,015,571 km (0.095 R)
• M15: 29,440,861 km (0.098 R)
• M16: 31,848,639 km (0.083 R)
• M17: 34,073,608 km (0.116 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.27 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 290.5

Radius: 6.1

Gravity: 7.81 G

Time & Orbit

Eccentricity (e): 0.071

Orbit Range: 5.82 AU - 6.72 AU

Year: 10837 Days

Day: 18.8 Hours

Environment

Temp: -236 °C

Axial Tilt: 26.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 44,490,278 km

• M1: 75,846 km (0.081 R)
• M2: 279,150 km (0.101 R)
• M3: 830,567 km (0.067 R)
• M4: 1,049,279 km (0.097 R)
• M5: 3,069,748 km (0.101 R)
• M6: 3,531,258 km (0.116 R)
• M7: 3,766,725 km (0.062 R)
• M8: 4,509,777 km (0.086 R)
• M9: 5,346,329 km (0.105 R)
• M10: 7,322,367 km (0.036 R)
• M11: 7,512,655 km (0.06 R)
• M12: 8,640,474 km (0.116 R)
• M13: 10,298,317 km (0.115 R)
• M14: 11,998,796 km (0.05 R)
• M15: 13,878,194 km (0.119 R)
• M16: 14,585,942 km (0.084 R)
• M17: 15,755,199 km (0.116 R)
• M18: 22,390,613 km (0.053 R)
• M19: 24,617,676 km (0.092 R)
• M20: 35,984,122 km (0.093 R)

Planet 8 - Ice Giant

Semi-Major Axis: 8.8 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 168.7

Radius: 5.6

Gravity: 5.38 G

Time & Orbit

Eccentricity (e): 0.049

Orbit Range: 8.37 AU - 9.23 AU

Year: 18019 Days

Day: 23.7 Hours

Environment

Temp: -227 °C

Axial Tilt: 23.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 44,490,278 km

• M1: 69,713 km (0.115 R)
• M2: 303,684 km (0.049 R)
• M3: 517,309 km (0.107 R)
• M4: 755,469 km (0.046 R)
• M5: 1,431,801 km (0.093 R)
• M6: 2,211,954 km (0.04 R)
• M7: 2,412,116 km (0.059 R)
• M8: 3,576,885 km (0.082 R)
• M9: 3,957,761 km (0.087 R)
• M10: 4,830,216 km (0.09 R)
• M11: 5,555,915 km (0.085 R)
• M12: 6,387,829 km (0.075 R)
• M13: 7,379,813 km (0.109 R)
• M14: 7,745,879 km (0.05 R)
• M15: 9,192,640 km (0.079 R)
• M16: 12,956,821 km (0.096 R)
• M17: 15,834,336 km (0.116 R)
• M18: 16,649,495 km (0.105 R)
• M19: 19,262,970 km (0.09 R)
• M20: 20,907,200 km (0.053 R)
• M21: 22,054,017 km (0.109 R)
• M22: 27,157,399 km (0.107 R)
• M23: 28,521,283 km (0.115 R)
• M24: 35,569,736 km (0.06 R)
• M25: 37,082,619 km (0.074 R)
• M26: 38,395,789 km (0.114 R)
• M27: 39,125,079 km (0.084 R)
• M28: 39,616,359 km (0.119 R)
• M29: 39,863,494 km (0.041 R)
• M30: 43,170,954 km (0.075 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: 320 - 11,260 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit