🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.33 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.66 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 331.6

Radius: 11.4

Gravity: 2.55 G

Time & Orbit

Eccentricity (e): 0.141

Orbit Range: 0.57 AU - 0.75 AU

Year: 377 Days

Day: 12.1 Hours

Environment

Temp: -164 °C

Axial Tilt: 48.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 27,509,859 km

• M1: 141,968 km (0.097 R)
• M2: 497,263 km (0.079 R)
• M3: 911,051 km (0.119 R)
• M4: 1,338,901 km (0.077 R)
• M5: 1,901,539 km (0.085 R)
• M6: 2,379,953 km (0.085 R)
• M7: 3,014,696 km (0.085 R)
• M8: 3,873,687 km (0.095 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 123.2

Radius: 14.8

Gravity: 0.56 G

Time & Orbit

Eccentricity (e): 0.199

Orbit Range: 0.65 AU - 0.97 AU

Year: 512 Days

Day: 9.5 Hours

Environment

Temp: -175 °C

Axial Tilt: 31.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 27,509,859 km

• M1: 184,155 km (0.104 R)
• M2: 652,097 km (0.054 R)
• M3: 1,114,355 km (0.042 R)
• M4: 1,645,577 km (0.089 R)
• M5: 2,183,979 km (0.104 R)
• M6: 3,122,108 km (0.091 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.27 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 346.8

Radius: 12.3

Gravity: 2.29 G

Time & Orbit

Eccentricity (e): 0.218

Orbit Range: 0.99 AU - 1.55 AU

Year: 1006 Days

Day: 8.6 Hours

Environment

Temp: -188 °C

Axial Tilt: 23.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 27,509,859 km

• M1: 153,039 km (0.103 R)
• M2: 563,834 km (0.038 R)
• M3: 1,055,563 km (0.071 R)
• M4: 1,451,548 km (0.113 R)
• M5: 2,058,018 km (0.11 R)
• M6: 2,453,106 km (0.088 R)
• M7: 3,155,169 km (0.099 R)
• M8: 3,841,374 km (0.072 R)
• M9: 4,994,624 km (0.114 R)
• M10: 5,586,433 km (0.06 R)
• M11: 7,217,200 km (0.043 R)
• M12: 8,215,017 km (0.079 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.46 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 806.6

Radius: 8.2

Gravity: 12 G

Time & Orbit

Eccentricity (e): 0.169

Orbit Range: 1.21 AU - 1.71 AU

Year: 1240 Days

Day: 5.1 Hours

Environment

Temp: -198 °C

Axial Tilt: 7.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 27,509,859 km

• M1: 102,026 km (0.092 R)
• M2: 358,736 km (0.058 R)
• M3: 665,262 km (0.076 R)
• M4: 1,026,989 km (0.091 R)
• M5: 2,046,050 km (0.113 R)
• M6: 2,525,362 km (0.075 R)
• M7: 2,812,141 km (0.053 R)
• M8: 3,150,082 km (0.026 R)
• M9: 3,530,659 km (0.072 R)
• M10: 4,439,616 km (0.111 R)
• M11: 5,202,266 km (0.102 R)
• M12: 5,625,927 km (0.114 R)
• M13: 5,936,044 km (0.12 R)
• M14: 6,810,892 km (0.09 R)
• M15: 7,163,494 km (0.051 R)
• M16: 9,112,754 km (0.114 R)
• M17: 9,479,119 km (0.1 R)
• M18: 9,887,222 km (0.04 R)
• M19: 10,144,232 km (0.081 R)
• M20: 10,941,887 km (0.074 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.53 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 414

Radius: 13.6

Gravity: 2.24 G

Time & Orbit

Eccentricity (e): 0.035

Orbit Range: 2.44 AU - 2.62 AU

Year: 2829 Days

Day: 13.8 Hours

Environment

Temp: -204 °C

Axial Tilt: 45.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 27,509,859 km

• M1: 169,644 km (0.111 R)
• M2: 674,387 km (0.09 R)
• M3: 1,378,544 km (0.088 R)
• M4: 1,841,550 km (0.09 R)
• M5: 2,517,583 km (0.092 R)
• M6: 3,173,868 km (0.103 R)
• M7: 3,775,401 km (0.08 R)
• M8: 4,231,376 km (0.113 R)
• M9: 4,809,871 km (0.051 R)
• M10: 5,255,074 km (0.082 R)
• M11: 5,801,256 km (0.106 R)
• M12: 7,378,017 km (0.106 R)
• M13: 8,376,134 km (0.098 R)
• M14: 9,428,256 km (0.102 R)
• M15: 10,677,997 km (0.091 R)
• M16: 13,073,208 km (0.102 R)
• M17: 13,990,393 km (0.088 R)
• M18: 14,856,864 km (0.115 R)
• M19: 15,855,729 km (0.119 R)
• M20: 16,848,311 km (0.096 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.67 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 806.6

Radius: 12.1

Gravity: 5.51 G

Time & Orbit

Eccentricity (e): 0.04

Orbit Range: 2.56 AU - 2.78 AU

Year: 3067 Days

Day: 14.6 Hours

Environment

Temp: -219 °C

Axial Tilt: 13.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 27,509,859 km

• M1: 150,495 km (0.11 R)
• M2: 652,546 km (0.074 R)
• M3: 1,081,443 km (0.1 R)
• M4: 1,527,993 km (0.095 R)
• M5: 2,539,873 km (0.091 R)
• M6: 3,113,132 km (0.068 R)
• M7: 3,652,282 km (0.051 R)
• M8: 4,775,762 km (0.071 R)
• M9: 5,469,747 km (0.091 R)
• M10: 7,728,226 km (0.045 R)
• M11: 8,721,406 km (0.118 R)
• M12: 10,712,853 km (0.115 R)
• M13: 11,946,886 km (0.064 R)
• M14: 14,144,628 km (0.069 R)
• M15: 14,544,055 km (0.078 R)
• M16: 17,213,180 km (0.072 R)
• M17: 18,366,879 km (0.054 R)
• M18: 18,782,761 km (0.116 R)
• M19: 19,880,809 km (0.117 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.11 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 642.8

Radius: 13.9

Gravity: 3.33 G

Time & Orbit

Eccentricity (e): 0.137

Orbit Range: 3.55 AU - 4.67 AU

Year: 5857 Days

Day: 8.5 Hours

Environment

Temp: -224 °C

Axial Tilt: 175.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 27,509,859 km

• M1: 173,384 km (0.092 R)
• M2: 635,941 km (0.053 R)
• M3: 1,223,711 km (0.052 R)
• M4: 1,697,487 km (0.069 R)
• M5: 2,646,087 km (0.091 R)
• M6: 3,395,273 km (0.109 R)
• M7: 4,160,317 km (0.035 R)
• M8: 5,550,530 km (0.066 R)
• M9: 6,098,058 km (0.103 R)
• M10: 6,850,086 km (0.112 R)
• M11: 7,774,003 km (0.093 R)
• M12: 8,266,180 km (0.103 R)
• M13: 10,861,105 km (0.118 R)
• M14: 11,526,067 km (0.097 R)
• M15: 14,688,117 km (0.099 R)
• M16: 15,383,747 km (0.093 R)
• M17: 16,284,177 km (0.058 R)
• M18: 19,128,930 km (0.116 R)
• M19: 21,030,319 km (0.109 R)
• M20: 26,883,635 km (0.103 R)
• M21: 30,553,720 km (0.088 R)

Planet 8 - Gas Giant

Semi-Major Axis: 5.05 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 203.5

Radius: 12

Gravity: 1.41 G

Time & Orbit

Eccentricity (e): 0.117

Orbit Range: 4.46 AU - 5.64 AU

Year: 7977 Days

Day: 14.6 Hours

Environment

Temp: -214 °C

Axial Tilt: 37.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 27,509,859 km

• M1: 152,141 km (0.045 R)
• M2: 647,011 km (0.057 R)
• M3: 1,132,456 km (0.028 R)
• M4: 1,603,689 km (0.076 R)
• M5: 2,760,679 km (0.111 R)
• M6: 3,778,693 km (0.078 R)
• M7: 6,298,669 km (0.118 R)
• M8: 6,861,157 km (0.093 R)
• M9: 8,489,380 km (0.062 R)
• M10: 9,137,438 km (0.119 R)
• M11: 11,738,197 km (0.12 R)
• M12: 14,797,773 km (0.089 R)
• M13: 15,345,600 km (0.066 R)
• M14: 20,496,703 km (0.109 R)
• M15: 22,370,566 km (0.114 R)
• M16: 23,092,825 km (0.045 R)
• M17: 23,755,992 km (0.037 R)
• M18: 24,205,235 km (0.067 R)
• M19: 24,583,867 km (0.067 R)

Kuiper Belt

Range: 30 - 54 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 320 - 20,146 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit