🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.49 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.98 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 969

Radius: 9.1

Gravity: 11.7 G

Time & Orbit

Eccentricity (e): 0.114

Orbit Range: 0.87 AU - 1.09 AU

Year: 617 Days

Day: 5.1 Hours

Environment

Temp: -160 °C

Axial Tilt: 22.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 52,984,660 km

• M1: 113,246 km (0.051 R)
• M2: 427,551 km (0.026 R)
• M3: 753,824 km (0.119 R)
• M4: 1,082,191 km (0.032 R)
• M5: 1,672,205 km (0.053 R)
• M6: 2,088,237 km (0.056 R)
• M7: 2,776,836 km (0.098 R)
• M8: 3,232,212 km (0.113 R)
• M9: 4,060,984 km (0.092 R)
• M10: 4,452,332 km (0.044 R)
• M11: 5,365,926 km (0.117 R)
• M12: 5,818,609 km (0.106 R)
• M13: 6,276,079 km (0.09 R)
• M14: 6,608,336 km (0.112 R)
• M15: 6,974,402 km (0.094 R)
• M16: 7,353,783 km (0.043 R)
• M17: 8,202,900 km (0.03 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.2 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 344.4

Radius: 9.4

Gravity: 3.9 G

Time & Orbit

Eccentricity (e): 0.131

Orbit Range: 1.04 AU - 1.36 AU

Year: 836 Days

Day: 13.3 Hours

Environment

Temp: -168 °C

Axial Tilt: 39.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 52,984,660 km

• M1: 116,836 km (0.042 R)
• M2: 814,710 km (0.05 R)
• M3: 1,342,491 km (0.112 R)
• M4: 1,875,658 km (0.073 R)
• M5: 2,693,659 km (0.075 R)
• M6: 3,389,888 km (0.06 R)
• M7: 4,488,684 km (0.032 R)
• M8: 5,052,668 km (0.11 R)
• M9: 5,864,835 km (0.051 R)
• M10: 7,264,622 km (0.113 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.25 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 652

Radius: 9.9

Gravity: 6.65 G

Time & Orbit

Eccentricity (e): 0.074

Orbit Range: 1.16 AU - 1.34 AU

Year: 889 Days

Day: 10.5 Hours

Environment

Temp: -168 °C

Axial Tilt: 12.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 52,984,660 km

• M1: 123,119 km (0.066 R)
• M2: 596,297 km (0.088 R)
• M3: 973,134 km (0.093 R)
• M4: 1,997,281 km (0.085 R)
• M5: 2,529,401 km (0.119 R)
• M6: 3,036,538 km (0.108 R)
• M7: 3,654,078 km (0.101 R)
• M8: 4,867,167 km (0.103 R)
• M9: 5,934,847 km (0.106 R)
• M10: 6,266,954 km (0.074 R)
• M11: 6,766,012 km (0.071 R)
• M12: 7,221,388 km (0.112 R)
• M13: 7,893,083 km (0.114 R)
• M14: 8,817,448 km (0.077 R)
• M15: 9,223,158 km (0.091 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.39 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 766.6

Radius: 11.7

Gravity: 5.6 G

Time & Orbit

Eccentricity (e): 0.032

Orbit Range: 1.35 AU - 1.43 AU

Year: 1042 Days

Day: 10.8 Hours

Environment

Temp: -184 °C

Axial Tilt: 140.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 52,984,660 km

• M1: 146,157 km (0.061 R)
• M2: 714,330 km (0.117 R)
• M3: 2,117,259 km (0.049 R)
• M4: 3,104,305 km (0.055 R)
• M5: 3,625,355 km (0.104 R)
• M6: 5,609,322 km (0.106 R)
• M7: 6,032,085 km (0.098 R)
• M8: 6,613,572 km (0.113 R)
• M9: 8,640,623 km (0.099 R)
• M10: 9,177,231 km (0.078 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.58 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 518.4

Radius: 14

Gravity: 2.64 G

Time & Orbit

Eccentricity (e): 0.217

Orbit Range: 1.24 AU - 1.92 AU

Year: 1263 Days

Day: 12 Hours

Environment

Temp: -185 °C

Axial Tilt: 1.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 52,984,660 km

• M1: 174,132 km (0.088 R)
• M2: 674,686 km (0.039 R)
• M3: 1,180,028 km (0.104 R)
• M4: 1,812,528 km (0.089 R)
• M5: 2,642,198 km (0.113 R)
• M6: 4,314,552 km (0.057 R)
• M7: 4,757,212 km (0.092 R)
• M8: 5,210,793 km (0.117 R)
• M9: 6,074,870 km (0.102 R)
• M10: 6,656,357 km (0.119 R)
• M11: 7,699,653 km (0.053 R)
• M12: 8,247,630 km (0.1 R)
• M13: 8,821,487 km (0.032 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.95 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 906

Radius: 13.1

Gravity: 5.28 G

Time & Orbit

Eccentricity (e): 0.211

Orbit Range: 2.33 AU - 3.57 AU

Year: 3222 Days

Day: 14.5 Hours

Environment

Temp: -193 °C

Axial Tilt: 3.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 52,984,660 km

• M1: 163,361 km (0.119 R)
• M2: 945,309 km (0.073 R)
• M3: 1,758,673 km (0.076 R)
• M4: 2,386,385 km (0.071 R)
• M5: 3,557,288 km (0.034 R)
• M6: 4,073,849 km (0.068 R)
• M7: 4,522,942 km (0.111 R)
• M8: 5,602,291 km (0.094 R)
• M9: 6,217,587 km (0.066 R)
• M10: 7,033,942 km (0.112 R)
• M11: 14,157,194 km (0.082 R)
• M12: 14,983,124 km (0.103 R)
• M13: 17,362,778 km (0.113 R)
• M14: 18,069,478 km (0.074 R)
• M15: 21,090,158 km (0.103 R)
• M16: 22,304,893 km (0.103 R)
• M17: 22,720,027 km (0.116 R)
• M18: 23,708,869 km (0.041 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.09 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 134.4

Radius: 9.7

Gravity: 1.43 G

Time & Orbit

Eccentricity (e): 0.193

Orbit Range: 3.3 AU - 4.88 AU

Year: 5259 Days

Day: 6.8 Hours

Environment

Temp: -201 °C

Axial Tilt: 20 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 52,984,660 km

• M1: 120,576 km (0.074 R)
• M2: 612,304 km (0.088 R)
• M3: 1,109,867 km (0.118 R)
• M4: 1,656,198 km (0.06 R)
• M5: 2,387,582 km (0.073 R)
• M6: 2,774,143 km (0.061 R)
• M7: 3,476,655 km (0.037 R)
• M8: 4,232,573 km (0.054 R)
• M9: 6,303,755 km (0.08 R)
• M10: 8,034,004 km (0.113 R)
• M11: 8,414,731 km (0.082 R)
• M12: 10,465,418 km (0.059 R)
• M13: 11,035,835 km (0.095 R)
• M14: 12,073,446 km (0.115 R)
• M15: 13,705,110 km (0.116 R)
• M16: 14,434,250 km (0.097 R)
• M17: 17,506,242 km (0.076 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.32 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 583.5

Radius: 7.8

Gravity: 9.59 G

Time & Orbit

Eccentricity (e): 0.128

Orbit Range: 6.38 AU - 8.26 AU

Year: 12592 Days

Day: 17.5 Hours

Environment

Temp: -219 °C

Axial Tilt: 27.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 52,984,660 km

• M1: 361,428 km (0.085 R)
• M2: 1,496,577 km (0.102 R)
• M3: 1,912,609 km (0.037 R)
• M4: 2,287,651 km (0.09 R)
• M5: 2,647,733 km (0.082 R)
• M6: 3,932,030 km (0.088 R)
• M7: 5,873,212 km (0.117 R)
• M8: 9,534,919 km (0.049 R)
• M9: 11,577,978 km (0.073 R)
• M10: 11,866,851 km (0.116 R)
• M11: 13,831,670 km (0.107 R)
• M12: 15,027,256 km (0.088 R)
• M13: 16,218,354 km (0.112 R)
• M14: 18,005,301 km (0.086 R)
• M15: 20,502,538 km (0.119 R)
• M16: 28,727,429 km (0.082 R)
• M17: 36,508,313 km (0.094 R)
• M18: 38,652,051 km (0.116 R)
• M19: 46,016,754 km (0.088 R)
• M20: 47,623,585 km (0.064 R)
• M21: 47,919,639 km (0.084 R)
• M22: 51,413,796 km (0.099 R)

Kuiper Belt

Range: 30 - 55 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 353 - 16,469 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit