🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.32 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.63 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 327.6

Radius: 11.2

Gravity: 2.61 G

Time & Orbit

Eccentricity (e): 0.213

Orbit Range: 0.5 AU - 0.76 AU

Year: 345 Days

Day: 14.7 Hours

Environment

Temp: -159 °C

Axial Tilt: 39.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 57,812,141 km

• M1: 139,276 km (0.046 R)
• M2: 593,156 km (0.112 R)
• M3: 951,143 km (0.036 R)
• M4: 1,862,643 km (0.048 R)
• M5: 2,681,691 km (0.029 R)
• M6: 3,125,100 km (0.042 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 770

Radius: 9.2

Gravity: 9.1 G

Time & Orbit

Eccentricity (e): 0.039

Orbit Range: 0.76 AU - 0.82 AU

Year: 485 Days

Day: 13.9 Hours

Environment

Temp: -167 °C

Axial Tilt: 2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 57,812,141 km

• M1: 116,686 km (0.107 R)
• M2: 485,894 km (0.106 R)
• M3: 807,829 km (0.091 R)
• M4: 1,358,648 km (0.084 R)
• M5: 1,703,920 km (0.087 R)
• M6: 2,216,292 km (0.105 R)
• M7: 3,300,129 km (0.094 R)
• M8: 4,028,820 km (0.077 R)
• M9: 5,020,804 km (0.106 R)
• M10: 5,436,387 km (0.104 R)
• M11: 6,149,071 km (0.106 R)
• M12: 6,528,002 km (0.097 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.83 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 549.6

Radius: 8.4

Gravity: 7.79 G

Time & Orbit

Eccentricity (e): 0.016

Orbit Range: 0.82 AU - 0.84 AU

Year: 522 Days

Day: 11 Hours

Environment

Temp: -169 °C

Axial Tilt: 27.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 57,812,141 km

• M1: 105,317 km (0.115 R)
• M2: 375,790 km (0.063 R)
• M3: 673,041 km (0.076 R)
• M4: 1,178,532 km (0.11 R)
• M5: 1,604,886 km (0.083 R)
• M6: 1,952,252 km (0.094 R)
• M7: 2,229,457 km (0.082 R)
• M8: 2,726,272 km (0.104 R)
• M9: 3,040,577 km (0.078 R)
• M10: 3,576,436 km (0.103 R)
• M11: 3,913,929 km (0.099 R)
• M12: 4,215,967 km (0.116 R)
• M13: 4,652,943 km (0.111 R)
• M14: 5,024,095 km (0.114 R)
• M15: 5,617,849 km (0.107 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.94 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 847.2

Radius: 9.4

Gravity: 9.59 G

Time & Orbit

Eccentricity (e): 0.018

Orbit Range: 0.92 AU - 0.96 AU

Year: 629 Days

Day: 7.2 Hours

Environment

Temp: -166 °C

Axial Tilt: 20.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 57,812,141 km

• M1: 116,836 km (0.105 R)
• M2: 435,031 km (0.12 R)
• M3: 838,197 km (0.083 R)
• M4: 1,649,765 km (0.08 R)
• M5: 1,964,669 km (0.091 R)
• M6: 2,540,321 km (0.08 R)
• M7: 3,407,092 km (0.076 R)
• M8: 3,821,926 km (0.103 R)
• M9: 4,193,079 km (0.117 R)
• M10: 4,888,260 km (0.095 R)
• M11: 5,308,480 km (0.082 R)
• M12: 5,620,691 km (0.093 R)
• M13: 6,261,718 km (0.096 R)
• M14: 7,125,347 km (0.091 R)
• M15: 7,483,185 km (0.046 R)
• M16: 7,829,504 km (0.079 R)

Planet 5 - Gas Giant

Semi-Major Axis: 0.98 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 817.5

Radius: 11

Gravity: 6.76 G

Time & Orbit

Eccentricity (e): 0.205

Orbit Range: 0.78 AU - 1.18 AU

Year: 670 Days

Day: 5.3 Hours

Environment

Temp: -171 °C

Axial Tilt: 0.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 57,812,141 km

• M1: 137,032 km (0.083 R)
• M2: 521,648 km (0.103 R)
• M3: 1,054,665 km (0.088 R)
• M4: 1,539,063 km (0.084 R)
• M5: 2,074,025 km (0.075 R)
• M6: 2,551,242 km (0.076 R)
• M7: 3,202,292 km (0.08 R)
• M8: 3,814,746 km (0.119 R)
• M9: 4,568,719 km (0.077 R)
• M10: 5,042,645 km (0.112 R)
• M11: 6,209,508 km (0.043 R)
• M12: 6,579,913 km (0.094 R)
• M13: 7,163,494 km (0.092 R)
• M14: 7,617,524 km (0.063 R)
• M15: 8,236,709 km (0.056 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.96 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 227

Radius: 13.7

Gravity: 1.21 G

Time & Orbit

Eccentricity (e): 0.063

Orbit Range: 1.84 AU - 2.08 AU

Year: 1894 Days

Day: 6.2 Hours

Environment

Temp: -205 °C

Axial Tilt: 29.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 57,812,141 km

• M1: 170,542 km (0.098 R)
• M2: 742,903 km (0.071 R)
• M3: 2,699,942 km (0.117 R)
• M4: 4,240,501 km (0.119 R)
• M5: 6,972,607 km (0.083 R)
• M6: 7,459,548 km (0.067 R)
• M7: 9,229,889 km (0.085 R)
• M8: 10,778,975 km (0.088 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.58 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 821.1

Radius: 8.5

Gravity: 11.36 G

Time & Orbit

Eccentricity (e): 0.154

Orbit Range: 3.03 AU - 4.13 AU

Year: 4676 Days

Day: 14.2 Hours

Environment

Temp: -220 °C

Axial Tilt: 15.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 57,812,141 km

• M1: 105,766 km (0.061 R)
• M2: 890,407 km (0.079 R)
• M3: 1,349,971 km (0.089 R)
• M4: 2,166,476 km (0.033 R)
• M5: 2,621,852 km (0.034 R)
• M6: 3,042,372 km (0.119 R)
• M7: 4,972,633 km (0.077 R)
• M8: 5,388,067 km (0.108 R)
• M9: 6,100,751 km (0.117 R)
• M10: 6,609,683 km (0.036 R)
• M11: 7,216,003 km (0.1 R)
• M12: 8,346,215 km (0.108 R)
• M13: 9,340,442 km (0.07 R)
• M14: 11,185,433 km (0.073 R)
• M15: 11,514,997 km (0.113 R)
• M16: 15,932,921 km (0.114 R)
• M17: 17,774,022 km (0.084 R)
• M18: 22,463,766 km (0.078 R)
• M19: 30,307,930 km (0.11 R)
• M20: 30,673,248 km (0.111 R)

Planet 8 - Ice Giant

Semi-Major Axis: 6.64 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 640.8

Radius: 7.7

Gravity: 10.81 G

Time & Orbit

Eccentricity (e): 0.122

Orbit Range: 5.83 AU - 7.45 AU

Year: 11810 Days

Day: 23.1 Hours

Environment

Temp: -232 °C

Axial Tilt: 16.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 57,812,141 km

• M1: 95,743 km (0.08 R)
• M2: 343,626 km (0.033 R)
• M3: 622,626 km (0.078 R)
• M4: 1,068,727 km (0.076 R)
• M5: 1,668,465 km (0.081 R)
• M6: 2,008,950 km (0.117 R)
• M7: 2,897,262 km (0.105 R)
• M8: 4,310,812 km (0.1 R)
• M9: 5,118,641 km (0.075 R)
• M10: 5,386,421 km (0.117 R)
• M11: 8,374,190 km (0.031 R)
• M12: 8,841,833 km (0.084 R)
• M13: 14,586,840 km (0.091 R)
• M14: 14,855,218 km (0.076 R)
• M15: 16,318,435 km (0.088 R)
• M16: 20,267,968 km (0.115 R)
• M17: 20,686,394 km (0.05 R)
• M18: 20,940,261 km (0.108 R)
• M19: 21,367,961 km (0.104 R)
• M20: 22,865,885 km (0.11 R)
• M21: 31,528,798 km (0.074 R)
• M22: 32,090,688 km (0.119 R)
• M23: 35,001,115 km (0.083 R)
• M24: 35,241,369 km (0.071 R)
• M25: 35,725,019 km (0.093 R)
• M26: 41,073,741 km (0.106 R)
• M27: 44,357,863 km (0.034 R)
• M28: 45,776,350 km (0.044 R)
• M29: 47,812,826 km (0.057 R)
• M30: 50,213,273 km (0.095 R)

Planet 9 - Ice Giant

Semi-Major Axis: 7.44 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 612.5

Radius: 7.2

Gravity: 11.82 G

Time & Orbit

Eccentricity (e): 0.083

Orbit Range: 6.82 AU - 8.06 AU

Year: 14008 Days

Day: 19.8 Hours

Environment

Temp: -235 °C

Axial Tilt: 26.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 57,812,141 km

• M1: 89,609 km (0.041 R)
• M2: 330,462 km (0.118 R)
• M3: 6,006,355 km (0.112 R)
• M4: 7,175,761 km (0.08 R)
• M5: 9,536,864 km (0.111 R)
• M6: 9,904,127 km (0.089 R)
• M7: 12,808,719 km (0.119 R)
• M8: 14,047,090 km (0.116 R)
• M9: 15,150,375 km (0.109 R)
• M10: 17,295,309 km (0.055 R)
• M11: 23,670,273 km (0.095 R)
• M12: 25,030,417 km (0.108 R)
• M13: 28,333,388 km (0.113 R)
• M14: 32,737,998 km (0.055 R)
• M15: 32,975,410 km (0.068 R)
• M16: 39,024,998 km (0.087 R)
• M17: 47,423,572 km (0.083 R)
• M18: 48,802,117 km (0.111 R)
• M19: 54,917,977 km (0.106 R)

Kuiper Belt

Range: 30 - 46 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 444 - 14,548 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit