🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.26 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.51 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 78.7

Radius: 9.3

Gravity: 0.91 G

Time & Orbit

Eccentricity (e): 0.178

Orbit Range: 0.42 AU - 0.6 AU

Year: 243 Days

Day: 10 Hours

Environment

Temp: -146 °C

Axial Tilt: 0.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 36,912,437 km

• M1: 115,789 km (0.098 R)
• M2: 497,114 km (0.096 R)
• M3: 819,198 km (0.029 R)
• M4: 1,114,654 km (0.035 R)
• M5: 1,442,722 km (0.072 R)
• M6: 1,804,150 km (0.058 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.53 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 368.2

Radius: 9.7

Gravity: 3.91 G

Time & Orbit

Eccentricity (e): 0.034

Orbit Range: 0.51 AU - 0.55 AU

Year: 257 Days

Day: 5.5 Hours

Environment

Temp: -144 °C

Axial Tilt: 39.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 36,912,437 km

• M1: 120,576 km (0.083 R)
• M2: 473,926 km (0.054 R)
• M3: 790,026 km (0.078 R)
• M4: 1,258,866 km (0.068 R)
• M5: 1,633,758 km (0.082 R)
• M6: 2,076,269 km (0.047 R)
• M7: 2,406,880 km (0.119 R)
• M8: 2,772,797 km (0.106 R)
• M9: 3,175,813 km (0.116 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 940.2

Radius: 11

Gravity: 7.77 G

Time & Orbit

Eccentricity (e): 0.123

Orbit Range: 0.61 AU - 0.79 AU

Year: 391 Days

Day: 7.7 Hours

Environment

Temp: -154 °C

Axial Tilt: 14.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 36,912,437 km

• M1: 136,882 km (0.104 R)
• M2: 571,464 km (0.1 R)
• M3: 1,117,945 km (0.09 R)
• M4: 1,798,466 km (0.088 R)
• M5: 2,337,317 km (0.104 R)
• M6: 2,949,023 km (0.077 R)
• M7: 3,936,668 km (0.085 R)
• M8: 4,306,474 km (0.079 R)
• M9: 5,659,287 km (0.078 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.91 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 825.5

Radius: 12.8

Gravity: 5.04 G

Time & Orbit

Eccentricity (e): 0.177

Orbit Range: 0.75 AU - 1.07 AU

Year: 579 Days

Day: 14.6 Hours

Environment

Temp: -168 °C

Axial Tilt: 28.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 36,912,437 km

• M1: 159,172 km (0.088 R)
• M2: 648,357 km (0.082 R)
• M3: 1,694,196 km (0.114 R)
• M4: 2,211,655 km (0.092 R)
• M5: 2,625,143 km (0.084 R)
• M6: 3,163,247 km (0.106 R)
• M7: 4,072,652 km (0.099 R)
• M8: 4,573,207 km (0.117 R)
• M9: 5,304,740 km (0.113 R)
• M10: 5,735,882 km (0.082 R)
• M11: 6,446,471 km (0.074 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.33 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 806.7

Radius: 10.9

Gravity: 6.79 G

Time & Orbit

Eccentricity (e): 0.098

Orbit Range: 1.2 AU - 1.46 AU

Year: 1023 Days

Day: 13.4 Hours

Environment

Temp: -187 °C

Axial Tilt: 11.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 36,912,437 km

• M1: 135,536 km (0.087 R)
• M2: 572,960 km (0.115 R)
• M3: 945,758 km (0.109 R)
• M4: 1,300,155 km (0.106 R)
• M5: 2,679,148 km (0.109 R)
• M6: 3,180,451 km (0.077 R)
• M7: 3,759,245 km (0.031 R)
• M8: 4,183,205 km (0.091 R)
• M9: 4,620,929 km (0.099 R)
• M10: 5,186,409 km (0.076 R)
• M11: 5,630,116 km (0.095 R)
• M12: 6,231,350 km (0.082 R)
• M13: 6,709,913 km (0.102 R)
• M14: 7,613,036 km (0.12 R)
• M15: 8,027,871 km (0.117 R)
• M16: 9,218,221 km (0.064 R)
• M17: 9,659,983 km (0.079 R)
• M18: 10,810,391 km (0.093 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.5 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 927.4

Radius: 10.8

Gravity: 7.95 G

Time & Orbit

Eccentricity (e): 0.055

Orbit Range: 2.36 AU - 2.64 AU

Year: 2636 Days

Day: 10.5 Hours

Environment

Temp: -203 °C

Axial Tilt: 28.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 36,912,437 km

• M1: 135,236 km (0.093 R)
• M2: 1,552,377 km (0.119 R)
• M3: 1,905,428 km (0.117 R)
• M4: 2,858,815 km (0.052 R)
• M5: 3,323,466 km (0.091 R)
• M6: 4,427,499 km (0.102 R)
• M7: 5,076,155 km (0.102 R)
• M8: 5,577,607 km (0.108 R)
• M9: 7,376,073 km (0.119 R)
• M10: 8,120,172 km (0.09 R)
• M11: 8,459,012 km (0.091 R)
• M12: 9,165,114 km (0.076 R)
• M13: 13,159,825 km (0.111 R)
• M14: 17,059,992 km (0.107 R)
• M15: 18,651,115 km (0.12 R)
• M16: 20,776,451 km (0.109 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.56 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 851

Radius: 13.1

Gravity: 4.96 G

Time & Orbit

Eccentricity (e): 0.238

Orbit Range: 1.95 AU - 3.17 AU

Year: 2731 Days

Day: 9.3 Hours

Environment

Temp: -209 °C

Axial Tilt: 19.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 36,912,437 km

• M1: 162,912 km (0.048 R)
• M2: 682,615 km (0.07 R)
• M3: 1,401,134 km (0.107 R)
• M4: 2,272,242 km (0.117 R)
• M5: 2,968,770 km (0.111 R)
• M6: 5,001,805 km (0.028 R)
• M7: 7,328,201 km (0.107 R)
• M8: 8,572,706 km (0.116 R)
• M9: 9,613,758 km (0.109 R)
• M10: 10,577,467 km (0.058 R)
• M11: 12,384,310 km (0.076 R)
• M12: 17,592,261 km (0.111 R)
• M13: 18,274,128 km (0.077 R)
• M14: 20,800,686 km (0.054 R)

Planet 8 - Gas Giant

Semi-Major Axis: 3.55 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 571.2

Radius: 8.9

Gravity: 7.21 G

Time & Orbit

Eccentricity (e): 0.228

Orbit Range: 2.74 AU - 4.36 AU

Year: 4460 Days

Day: 6.5 Hours

Environment

Temp: -214 °C

Axial Tilt: 18 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 36,912,437 km

• M1: 110,702 km (0.089 R)
• M2: 847,472 km (0.113 R)
• M3: 1,159,832 km (0.094 R)
• M4: 1,776,624 km (0.073 R)
• M5: 2,781,922 km (0.118 R)
• M6: 3,139,910 km (0.085 R)
• M7: 3,528,715 km (0.047 R)
• M8: 3,884,159 km (0.042 R)
• M9: 4,403,264 km (0.103 R)
• M10: 4,942,265 km (0.113 R)
• M11: 5,804,098 km (0.1 R)
• M12: 7,582,518 km (0.116 R)
• M13: 9,222,709 km (0.103 R)
• M14: 10,064,047 km (0.102 R)
• M15: 13,239,112 km (0.115 R)
• M16: 13,945,962 km (0.106 R)
• M17: 14,465,964 km (0.092 R)
• M18: 15,161,295 km (0.086 R)
• M19: 16,792,660 km (0.115 R)
• M20: 18,044,794 km (0.103 R)

Planet 9 - Gas Giant

Semi-Major Axis: 4.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 636.1

Radius: 14

Gravity: 3.25 G

Time & Orbit

Eccentricity (e): 0.242

Orbit Range: 3.64 AU - 5.96 AU

Year: 7013 Days

Day: 12.9 Hours

Environment

Temp: -233 °C

Axial Tilt: 152.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 36,912,437 km

• M1: 174,132 km (0.087 R)
• M2: 897,288 km (0.07 R)
• M3: 1,344,436 km (0.055 R)
• M4: 2,319,964 km (0.105 R)
• M5: 2,974,454 km (0.086 R)
• M6: 3,891,789 km (0.117 R)
• M7: 5,831,475 km (0.081 R)
• M8: 6,557,024 km (0.116 R)
• M9: 8,149,344 km (0.114 R)
• M10: 8,636,584 km (0.063 R)
• M11: 9,143,422 km (0.047 R)
• M12: 10,784,361 km (0.086 R)
• M13: 11,930,879 km (0.092 R)
• M14: 13,490,586 km (0.119 R)
• M15: 15,673,070 km (0.088 R)
• M16: 17,608,417 km (0.061 R)
• M17: 20,430,432 km (0.101 R)
• M18: 21,871,358 km (0.085 R)
• M19: 24,617,526 km (0.098 R)
• M20: 27,045,649 km (0.109 R)
• M21: 29,250,722 km (0.115 R)
• M22: 32,374,026 km (0.052 R)
• M23: 33,291,061 km (0.104 R)
• M24: 34,751,885 km (0.034 R)
• M25: 36,146,286 km (0.098 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: 469 - 12,570 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit