🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.35 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 681.6

Radius: 11.7

Gravity: 4.98 G

Time & Orbit

Eccentricity (e): 0.059

Orbit Range: 0.65 AU - 0.73 AU

Year: 389 Days

Day: 8.8 Hours

Environment

Temp: -156 °C

Axial Tilt: 45.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 18,869,581 km

• M1: 145,559 km (0.118 R)
• M2: 707,598 km (0.026 R)
• M3: 1,120,039 km (0.068 R)
• M4: 1,987,109 km (0.089 R)
• M5: 2,781,324 km (0.053 R)
• M6: 3,269,013 km (0.059 R)
• M7: 3,751,466 km (0.032 R)
• M8: 4,335,496 km (0.107 R)
• M9: 5,427,560 km (0.108 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 804.5

Radius: 14.7

Gravity: 3.72 G

Time & Orbit

Eccentricity (e): 0.032

Orbit Range: 0.68 AU - 0.72 AU

Year: 397 Days

Day: 14.2 Hours

Environment

Temp: -152 °C

Axial Tilt: 0 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 18,869,581 km

• M1: 183,257 km (0.073 R)
• M2: 672,143 km (0.104 R)
• M3: 1,211,743 km (0.103 R)
• M4: 1,706,463 km (0.1 R)
• M5: 2,215,993 km (0.109 R)
• M6: 2,900,404 km (0.096 R)
• M7: 3,504,031 km (0.093 R)
• M8: 4,097,037 km (0.12 R)
• M9: 4,610,606 km (0.117 R)
• M10: 5,389,413 km (0.068 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 396.4

Radius: 10.5

Gravity: 3.6 G

Time & Orbit

Eccentricity (e): 0.186

Orbit Range: 0.64 AU - 0.94 AU

Year: 476 Days

Day: 12.4 Hours

Environment

Temp: -171 °C

Axial Tilt: 10.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 18,869,581 km

• M1: 130,599 km (0.059 R)
• M2: 526,136 km (0.067 R)
• M3: 896,839 km (0.105 R)
• M4: 1,309,430 km (0.102 R)
• M5: 1,789,939 km (0.099 R)
• M6: 2,439,642 km (0.088 R)
• M7: 3,799,487 km (0.111 R)
• M8: 4,207,141 km (0.051 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.35 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 917.9

Radius: 8.7

Gravity: 12.13 G

Time & Orbit

Eccentricity (e): 0.218

Orbit Range: 1.06 AU - 1.64 AU

Year: 1064 Days

Day: 8.7 Hours

Environment

Temp: -193 °C

Axial Tilt: 23.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 18,869,581 km

• M1: 112,049 km (0.061 R)
• M2: 389,104 km (0.075 R)
• M3: 728,242 km (0.088 R)
• M4: 1,237,623 km (0.087 R)
• M5: 1,551,480 km (0.077 R)
• M6: 2,000,872 km (0.114 R)
• M7: 2,296,926 km (0.052 R)
• M8: 3,565,665 km (0.097 R)
• M9: 4,210,282 km (0.112 R)
• M10: 5,475,432 km (0.036 R)
• M11: 5,926,768 km (0.106 R)
• M12: 9,233,181 km (0.091 R)
• M13: 9,998,224 km (0.079 R)
• M14: 10,574,924 km (0.076 R)
• M15: 11,173,465 km (0.096 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.38 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 609.5

Radius: 9.2

Gravity: 7.2 G

Time & Orbit

Eccentricity (e): 0.17

Orbit Range: 1.15 AU - 1.61 AU

Year: 1100 Days

Day: 10.3 Hours

Environment

Temp: -183 °C

Axial Tilt: 13.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 18,869,581 km

• M1: 115,490 km (0.118 R)
• M2: 522,246 km (0.103 R)
• M3: 1,422,825 km (0.111 R)
• M4: 1,808,788 km (0.104 R)
• M5: 2,455,350 km (0.118 R)
• M6: 3,028,908 km (0.096 R)
• M7: 3,552,800 km (0.097 R)
• M8: 4,287,325 km (0.09 R)
• M9: 4,583,230 km (0.091 R)
• M10: 5,718,229 km (0.106 R)
• M11: 7,975,960 km (0.082 R)
• M12: 9,374,700 km (0.111 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.72 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 881.4

Radius: 14.9

Gravity: 3.97 G

Time & Orbit

Eccentricity (e): 0.211

Orbit Range: 2.15 AU - 3.29 AU

Year: 3043 Days

Day: 7.7 Hours

Environment

Temp: -200 °C

Axial Tilt: 163.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 18,869,581 km

• M1: 185,352 km (0.106 R)
• M2: 732,730 km (0.031 R)
• M3: 1,249,890 km (0.057 R)
• M4: 2,756,939 km (0.093 R)
• M5: 3,456,459 km (0.084 R)
• M6: 4,272,515 km (0.106 R)
• M7: 4,869,859 km (0.068 R)
• M8: 5,444,315 km (0.114 R)
• M9: 6,233,294 km (0.048 R)
• M10: 7,286,015 km (0.079 R)
• M11: 8,176,870 km (0.113 R)
• M12: 9,325,333 km (0.11 R)
• M13: 9,899,639 km (0.106 R)
• M14: 14,861,651 km (0.071 R)
• M15: 16,022,680 km (0.053 R)
• M16: 17,243,249 km (0.101 R)
• M17: 18,465,314 km (0.074 R)
• M18: 19,067,296 km (0.073 R)
• M19: 19,620,210 km (0.101 R)
• M20: 22,006,744 km (0.085 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.15 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 527.4

Radius: 13

Gravity: 3.12 G

Time & Orbit

Eccentricity (e): 0.055

Orbit Range: 2.98 AU - 3.32 AU

Year: 3792 Days

Day: 9.7 Hours

Environment

Temp: -211 °C

Axial Tilt: 25.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 18,869,581 km

• M1: 161,715 km (0.072 R)
• M2: 760,406 km (0.117 R)
• M3: 1,167,013 km (0.071 R)
• M4: 1,657,544 km (0.115 R)
• M5: 2,610,932 km (0.085 R)
• M6: 3,087,550 km (0.082 R)
• M7: 4,737,017 km (0.044 R)
• M8: 5,794,973 km (0.117 R)
• M9: 6,525,160 km (0.116 R)
• M10: 7,128,039 km (0.112 R)
• M11: 7,669,434 km (0.088 R)
• M12: 8,169,689 km (0.035 R)
• M13: 8,585,721 km (0.096 R)
• M14: 9,088,819 km (0.119 R)
• M15: 9,573,665 km (0.092 R)
• M16: 10,233,691 km (0.116 R)
• M17: 11,731,764 km (0.11 R)
• M18: 13,804,293 km (0.109 R)
• M19: 16,656,077 km (0.106 R)
• M20: 18,603,692 km (0.114 R)
• M21: 19,083,153 km (0.074 R)
• M22: 20,571,502 km (0.069 R)

Planet 8 - Gas Giant

Semi-Major Axis: 3.62 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 191.5

Radius: 8.6

Gravity: 2.59 G

Time & Orbit

Eccentricity (e): 0.201

Orbit Range: 2.89 AU - 4.35 AU

Year: 4671 Days

Day: 14.1 Hours

Environment

Temp: -220 °C

Axial Tilt: 22.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 18,869,581 km

• M1: 106,962 km (0.119 R)
• M2: 448,345 km (0.06 R)
• M3: 762,949 km (0.111 R)
• M4: 1,447,958 km (0.106 R)
• M5: 2,005,659 km (0.1 R)
• M6: 3,581,672 km (0.086 R)
• M7: 4,492,574 km (0.086 R)
• M8: 4,843,381 km (0.11 R)
• M9: 5,550,380 km (0.115 R)
• M10: 6,006,504 km (0.107 R)
• M11: 6,765,713 km (0.07 R)
• M12: 7,959,355 km (0.084 R)
• M13: 8,473,971 km (0.049 R)
• M14: 9,713,390 km (0.047 R)
• M15: 11,108,839 km (0.118 R)
• M16: 15,004,966 km (0.089 R)
• M17: 15,641,205 km (0.09 R)
• M18: 17,928,856 km (0.108 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: 273 - 11,962 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit