🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.37 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.74 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 376.3

Radius: 13.4

Gravity: 2.1 G

Time & Orbit

Eccentricity (e): 0.069

Orbit Range: 0.69 AU - 0.79 AU

Year: 418 Days

Day: 10.7 Hours

Environment

Temp: -142 °C

Axial Tilt: 12.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 66,344,868 km

• M1: 167,250 km (0.113 R)
• M2: 630,854 km (0.106 R)
• M3: 1,161,179 km (0.119 R)
• M4: 1,587,383 km (0.11 R)
• M5: 2,288,548 km (0.109 R)
• M6: 2,707,721 km (0.073 R)
• M7: 4,483,448 km (0.099 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.86 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 953

Radius: 14.8

Gravity: 4.35 G

Time & Orbit

Eccentricity (e): 0.01

Orbit Range: 0.85 AU - 0.87 AU

Year: 523 Days

Day: 9.1 Hours

Environment

Temp: -158 °C

Axial Tilt: 37.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 66,344,868 km

• M1: 184,005 km (0.114 R)
• M2: 698,323 km (0.07 R)
• M3: 1,193,043 km (0.111 R)
• M4: 1,729,800 km (0.081 R)
• M5: 2,340,907 km (0.088 R)
• M6: 3,001,083 km (0.083 R)
• M7: 4,122,020 km (0.09 R)
• M8: 5,925,272 km (0.1 R)
• M9: 6,503,468 km (0.11 R)
• M10: 7,311,446 km (0.116 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.9 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 869.2

Radius: 12.6

Gravity: 5.47 G

Time & Orbit

Eccentricity (e): 0.008

Orbit Range: 0.89 AU - 0.91 AU

Year: 560 Days

Day: 14.3 Hours

Environment

Temp: -155 °C

Axial Tilt: 33.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 66,344,868 km

• M1: 156,928 km (0.115 R)
• M2: 622,178 km (0.093 R)
• M3: 1,172,997 km (0.117 R)
• M4: 1,653,804 km (0.086 R)
• M5: 2,218,836 km (0.115 R)
• M6: 3,660,211 km (0.099 R)
• M7: 4,273,862 km (0.106 R)
• M8: 5,106,823 km (0.117 R)
• M9: 6,045,100 km (0.047 R)
• M10: 7,137,763 km (0.07 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.24 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 428.4

Radius: 14.3

Gravity: 2.09 G

Time & Orbit

Eccentricity (e): 0.157

Orbit Range: 1.05 AU - 1.43 AU

Year: 906 Days

Day: 5.2 Hours

Environment

Temp: -159 °C

Axial Tilt: 42.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 66,344,868 km

• M1: 177,872 km (0.064 R)
• M2: 834,607 km (0.116 R)
• M3: 1,355,207 km (0.098 R)
• M4: 1,805,796 km (0.042 R)
• M5: 2,778,032 km (0.087 R)
• M6: 3,235,204 km (0.114 R)
• M7: 3,972,721 km (0.097 R)
• M8: 4,509,029 km (0.084 R)
• M9: 5,861,693 km (0.12 R)
• M10: 6,622,099 km (0.083 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.56 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 747.3

Radius: 11.5

Gravity: 5.65 G

Time & Orbit

Eccentricity (e): 0.229

Orbit Range: 1.2 AU - 1.92 AU

Year: 1278 Days

Day: 5 Hours

Environment

Temp: -182 °C

Axial Tilt: 19.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 66,344,868 km

• M1: 143,016 km (0.111 R)
• M2: 529,876 km (0.078 R)
• M3: 1,086,529 km (0.102 R)
• M4: 1,461,272 km (0.078 R)
• M5: 2,224,969 km (0.076 R)
• M6: 2,646,536 km (0.073 R)
• M7: 3,637,323 km (0.068 R)
• M8: 4,498,707 km (0.065 R)
• M9: 10,391,068 km (0.059 R)
• M10: 10,889,977 km (0.101 R)
• M11: 12,008,221 km (0.076 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 604.5

Radius: 13.4

Gravity: 3.37 G

Time & Orbit

Eccentricity (e): 0.146

Orbit Range: 2.31 AU - 3.09 AU

Year: 2910 Days

Day: 10.8 Hours

Environment

Temp: -203 °C

Axial Tilt: 21.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 66,344,868 km

• M1: 167,400 km (0.109 R)
• M2: 592,258 km (0.106 R)
• M3: 1,354,459 km (0.112 R)
• M4: 1,781,112 km (0.066 R)
• M5: 2,508,158 km (0.115 R)
• M6: 2,933,913 km (0.026 R)
• M7: 3,516,448 km (0.07 R)
• M8: 3,973,619 km (0.078 R)
• M9: 4,513,667 km (0.077 R)
• M10: 5,126,270 km (0.104 R)
• M11: 5,768,195 km (0.068 R)
• M12: 6,688,072 km (0.09 R)
• M13: 8,513,764 km (0.065 R)
• M14: 9,096,747 km (0.096 R)
• M15: 11,086,997 km (0.074 R)
• M16: 11,575,285 km (0.066 R)
• M17: 12,035,597 km (0.108 R)
• M18: 12,508,028 km (0.106 R)
• M19: 14,236,182 km (0.056 R)
• M20: 18,442,874 km (0.111 R)
• M21: 19,892,777 km (0.119 R)

Planet 7 - Ice Giant

Semi-Major Axis: 9.93 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 63.6

Radius: 5.3

Gravity: 2.26 G

Time & Orbit

Eccentricity (e): 0.149

Orbit Range: 8.45 AU - 11.41 AU

Year: 20527 Days

Day: 21.1 Hours

Environment

Temp: -240 °C

Axial Tilt: 24.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 66,344,868 km

• M1: 75,098 km (0.074 R)
• M2: 266,583 km (0.068 R)
• M3: 632,500 km (0.074 R)
• M4: 1,191,098 km (0.112 R)
• M5: 1,429,108 km (0.078 R)
• M6: 2,078,363 km (0.097 R)
• M7: 2,946,180 km (0.107 R)
• M8: 5,454,189 km (0.084 R)
• M9: 5,699,080 km (0.108 R)
• M10: 8,773,766 km (0.1 R)
• M11: 9,989,248 km (0.117 R)
• M12: 12,016,599 km (0.045 R)
• M13: 13,126,316 km (0.103 R)
• M14: 16,353,890 km (0.107 R)
• M15: 16,992,523 km (0.115 R)
• M16: 18,116,153 km (0.107 R)
• M17: 19,078,067 km (0.081 R)
• M18: 20,145,896 km (0.087 R)
• M19: 21,783,245 km (0.063 R)
• M20: 23,749,260 km (0.119 R)
• M21: 32,798,286 km (0.057 R)

Asteroid Belt

Center: 10.23 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 8 - Ice Giant

Semi-Major Axis: 10.53 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 361.5

Radius: 7.1

Gravity: 7.17 G

Time & Orbit

Eccentricity (e): 0.068

Orbit Range: 9.81 AU - 11.25 AU

Year: 22416 Days

Day: 21.7 Hours

Environment

Temp: -235 °C

Axial Tilt: 26.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 66,344,868 km

• M1: 88,412 km (0.094 R)
• M2: 321,037 km (0.036 R)
• M3: 642,523 km (0.071 R)
• M4: 1,605,933 km (0.053 R)
• M5: 1,968,110 km (0.033 R)
• M6: 2,692,462 km (0.104 R)
• M7: 3,153,822 km (0.071 R)
• M8: 3,417,264 km (0.06 R)
• M9: 4,234,069 km (0.097 R)
• M10: 4,457,269 km (0.063 R)
• M11: 5,887,574 km (0.115 R)
• M12: 7,189,075 km (0.101 R)
• M13: 9,297,358 km (0.04 R)
• M14: 10,291,137 km (0.068 R)
• M15: 10,813,832 km (0.106 R)
• M16: 11,111,681 km (0.071 R)
• M17: 11,354,030 km (0.091 R)
• M18: 11,723,985 km (0.06 R)
• M19: 12,553,356 km (0.081 R)
• M20: 14,044,846 km (0.091 R)
• M21: 15,201,388 km (0.034 R)
• M22: 16,032,404 km (0.03 R)
• M23: 21,949,000 km (0.066 R)
• M24: 27,374,765 km (0.09 R)
• M25: 28,830,202 km (0.086 R)
• M26: 39,639,995 km (0.116 R)
• M27: 41,210,473 km (0.097 R)
• M28: 42,821,942 km (0.09 R)
• M29: 43,268,641 km (0.111 R)
• M30: 44,933,067 km (0.092 R)
• M31: 45,394,427 km (0.061 R)
• M32: 47,748,200 km (0.102 R)
• M33: 48,068,040 km (0.117 R)
• M34: 51,849,874 km (0.052 R)
• M35: 54,246,432 km (0.076 R)
• M36: 57,254,546 km (0.103 R)

Kuiper Belt

Range: 30 - 51 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 430 - 12,630 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit