🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.5 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 733.9

Radius: 10.3

Gravity: 6.92 G

Time & Orbit

Eccentricity (e): 0.204

Orbit Range: 0.8 AU - 1.2 AU

Year: 656 Days

Day: 5.3 Hours

Environment

Temp: -150 °C

Axial Tilt: 11 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 60,190,708 km

• M1: 128,205 km (0.06 R)
• M2: 506,688 km (0.069 R)
• M3: 857,794 km (0.079 R)
• M4: 1,194,090 km (0.083 R)
• M5: 1,589,477 km (0.053 R)
• M6: 2,017,028 km (0.091 R)
• M7: 2,395,212 km (0.085 R)
• M8: 3,206,930 km (0.111 R)
• M9: 4,584,128 km (0.105 R)
• M10: 4,982,955 km (0.109 R)
• M11: 5,680,680 km (0.088 R)
• M12: 7,516,246 km (0.072 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.41 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 730.6

Radius: 11.3

Gravity: 5.72 G

Time & Orbit

Eccentricity (e): 0.152

Orbit Range: 1.2 AU - 1.62 AU

Year: 1098 Days

Day: 12.4 Hours

Environment

Temp: -167 °C

Axial Tilt: 24.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 60,190,708 km

• M1: 142,866 km (0.074 R)
• M2: 753,973 km (0.047 R)
• M3: 1,124,527 km (0.086 R)
• M4: 1,945,969 km (0.113 R)
• M5: 2,500,528 km (0.032 R)
• M6: 3,243,132 km (0.117 R)
• M7: 6,056,769 km (0.109 R)
• M8: 6,459,636 km (0.118 R)
• M9: 6,856,370 km (0.093 R)
• M10: 8,307,319 km (0.115 R)
• M11: 8,665,157 km (0.099 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 598.1

Radius: 10.5

Gravity: 5.42 G

Time & Orbit

Eccentricity (e): 0.05

Orbit Range: 1.7 AU - 1.88 AU

Year: 1571 Days

Day: 10.9 Hours

Environment

Temp: -191 °C

Axial Tilt: 150.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 60,190,708 km

• M1: 130,599 km (0.108 R)
• M2: 512,822 km (0.097 R)
• M3: 878,439 km (0.106 R)
• M4: 1,217,727 km (0.08 R)
• M5: 1,703,621 km (0.029 R)
• M6: 2,221,977 km (0.065 R)
• M7: 2,829,494 km (0.111 R)
• M8: 3,825,367 km (0.06 R)
• M9: 4,156,726 km (0.093 R)
• M10: 4,877,938 km (0.07 R)
• M11: 10,149,767 km (0.119 R)
• M12: 10,618,307 km (0.119 R)
• M13: 10,996,491 km (0.093 R)
• M14: 12,297,693 km (0.11 R)
• M15: 13,181,068 km (0.067 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.23 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 844.8

Radius: 13

Gravity: 5 G

Time & Orbit

Eccentricity (e): 0.169

Orbit Range: 1.85 AU - 2.61 AU

Year: 2185 Days

Day: 10.2 Hours

Environment

Temp: -188 °C

Axial Tilt: 32.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 60,190,708 km

• M1: 161,715 km (0.11 R)
• M2: 576,251 km (0.069 R)
• M3: 1,113,158 km (0.08 R)
• M4: 1,746,854 km (0.092 R)
• M5: 2,155,107 km (0.102 R)
• M6: 2,836,226 km (0.1 R)
• M7: 3,566,712 km (0.054 R)
• M8: 4,398,477 km (0.092 R)
• M9: 5,144,521 km (0.103 R)
• M10: 7,651,632 km (0.115 R)
• M11: 9,519,212 km (0.064 R)
• M12: 10,020,963 km (0.099 R)
• M13: 10,845,247 km (0.072 R)
• M14: 11,673,870 km (0.12 R)
• M15: 12,249,373 km (0.11 R)
• M16: 14,044,398 km (0.046 R)
• M17: 15,809,653 km (0.099 R)
• M18: 17,240,556 km (0.117 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.67 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 672.9

Radius: 10.6

Gravity: 5.99 G

Time & Orbit

Eccentricity (e): 0.192

Orbit Range: 2.16 AU - 3.18 AU

Year: 2862 Days

Day: 13.2 Hours

Environment

Temp: -190 °C

Axial Tilt: 36.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 60,190,708 km

• M1: 131,796 km (0.096 R)
• M2: 514,467 km (0.116 R)
• M3: 911,799 km (0.107 R)
• M4: 1,278,015 km (0.11 R)
• M5: 2,133,266 km (0.115 R)
• M6: 2,463,129 km (0.101 R)
• M7: 2,891,577 km (0.052 R)
• M8: 3,820,730 km (0.074 R)
• M9: 4,463,103 km (0.109 R)
• M10: 5,079,895 km (0.105 R)
• M11: 5,700,726 km (0.093 R)
• M12: 6,886,588 km (0.098 R)
• M13: 7,245,174 km (0.112 R)
• M14: 7,935,120 km (0.104 R)
• M15: 8,363,119 km (0.116 R)
• M16: 11,510,509 km (0.049 R)
• M17: 11,846,356 km (0.084 R)
• M18: 12,318,936 km (0.055 R)
• M19: 13,812,371 km (0.067 R)
• M20: 14,239,922 km (0.115 R)
• M21: 14,922,388 km (0.097 R)
• M22: 18,724,417 km (0.114 R)

Planet 6 - Ice Giant

Semi-Major Axis: 7.17 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 246.7

Radius: 6.2

Gravity: 6.42 G

Time & Orbit

Eccentricity (e): 0.039

Orbit Range: 6.89 AU - 7.45 AU

Year: 12595 Days

Day: 24 Hours

Environment

Temp: -226 °C

Axial Tilt: 14.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 60,190,708 km

• M1: 79,137 km (0.077 R)
• M2: 358,137 km (0.049 R)
• M3: 712,385 km (0.118 R)
• M4: 1,015,470 km (0.079 R)
• M5: 1,707,211 km (0.097 R)
• M6: 2,505,016 km (0.034 R)
• M7: 3,389,888 km (0.053 R)
• M8: 3,791,708 km (0.072 R)
• M9: 4,804,635 km (0.118 R)
• M10: 7,545,118 km (0.066 R)
• M11: 10,145,279 km (0.116 R)
• M12: 13,288,330 km (0.117 R)
• M13: 20,939,513 km (0.104 R)
• M14: 23,270,398 km (0.042 R)
• M15: 29,111,746 km (0.119 R)
• M16: 29,990,484 km (0.113 R)
• M17: 30,786,494 km (0.117 R)
• M18: 33,789,671 km (0.113 R)

Planet 7 - Ice Giant

Semi-Major Axis: 11 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 236.8

Radius: 3.5

Gravity: 19.33 G

Time & Orbit

Eccentricity (e): 0.015

Orbit Range: 10.84 AU - 11.17 AU

Year: 23933 Days

Day: 24.6 Hours

Environment

Temp: -226 °C

Axial Tilt: 22.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 60,190,708 km

• M1: 185,053 km (0.087 R)
• M2: 328,667 km (0.071 R)
• M3: 1,733,391 km (0.103 R)
• M4: 2,014,485 km (0.09 R)
• M5: 4,280,593 km (0.049 R)
• M6: 4,825,579 km (0.107 R)
• M7: 5,415,593 km (0.11 R)
• M8: 9,995,980 km (0.101 R)
• M9: 13,035,360 km (0.103 R)
• M10: 15,516,890 km (0.051 R)
• M11: 15,663,346 km (0.101 R)
• M12: 16,409,390 km (0.096 R)
• M13: 31,772,045 km (0.067 R)
• M14: 36,204,779 km (0.11 R)
• M15: 37,373,886 km (0.105 R)
• M16: 51,287,236 km (0.054 R)
• M17: 52,760,626 km (0.102 R)
• M18: 59,292,966 km (0.045 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: 261 - 17,444 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit