🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.33 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.65 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.39

Radius: 1.14

Gravity: 1.07 G

Time & Orbit

Eccentricity (e): 0.198

Orbit Range: 0.52 AU - 0.78 AU

Year: 333 Days

Day: 22.5 Hours

Environment

Temp: -127 °C

Axial Tilt: 3.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 25,910,497 km

• M1: 52,359 km (0.094 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 38.8

Radius: 14.6

Gravity: 0.18 G

Time & Orbit

Eccentricity (e): 0.089

Orbit Range: 0.73 AU - 0.87 AU

Year: 455 Days

Day: 12.8 Hours

Environment

Temp: -147 °C

Axial Tilt: 23 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 25,910,497 km

• M1: 181,612 km (0.087 R)
• M2: 756,965 km (0.067 R)
• M3: 1,273,227 km (0.042 R)
• M4: 2,169,169 km (0.092 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.27 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 454.5

Radius: 11.2

Gravity: 3.62 G

Time & Orbit

Eccentricity (e): 0.174

Orbit Range: 1.05 AU - 1.49 AU

Year: 910 Days

Day: 6.9 Hours

Environment

Temp: -168 °C

Axial Tilt: 47.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 25,910,497 km

• M1: 139,724 km (0.086 R)
• M2: 578,046 km (0.087 R)
• M3: 1,013,974 km (0.12 R)
• M4: 1,398,890 km (0.101 R)
• M5: 1,865,186 km (0.116 R)
• M6: 2,340,459 km (0.049 R)
• M7: 2,813,188 km (0.047 R)
• M8: 3,455,860 km (0.094 R)
• M9: 4,642,620 km (0.077 R)
• M10: 6,449,613 km (0.113 R)
• M11: 7,591,643 km (0.08 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.55 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 620.9

Radius: 14.2

Gravity: 3.08 G

Time & Orbit

Eccentricity (e): 0.057

Orbit Range: 2.4 AU - 2.7 AU

Year: 2589 Days

Day: 5.1 Hours

Environment

Temp: -207 °C

Axial Tilt: 16.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 25,910,497 km

• M1: 176,675 km (0.111 R)
• M2: 655,837 km (0.071 R)
• M3: 1,327,083 km (0.06 R)
• M4: 1,788,592 km (0.112 R)
• M5: 2,482,128 km (0.084 R)
• M6: 3,035,191 km (0.055 R)
• M7: 3,525,573 km (0.087 R)
• M8: 4,455,623 km (0.108 R)
• M9: 4,911,298 km (0.079 R)
• M10: 5,494,730 km (0.099 R)
• M11: 6,020,417 km (0.072 R)
• M12: 7,028,706 km (0.103 R)
• M13: 8,083,371 km (0.083 R)
• M14: 10,696,846 km (0.103 R)
• M15: 12,091,547 km (0.104 R)
• M16: 13,514,821 km (0.114 R)
• M17: 15,047,003 km (0.116 R)
• M18: 16,130,989 km (0.044 R)
• M19: 16,795,802 km (0.089 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.5 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 833.7

Radius: 8.7

Gravity: 11.01 G

Time & Orbit

Eccentricity (e): 0.113

Orbit Range: 3.1 AU - 3.9 AU

Year: 4163 Days

Day: 8.4 Hours

Environment

Temp: -205 °C

Axial Tilt: 35 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 25,910,497 km

• M1: 110,104 km (0.077 R)
• M2: 386,710 km (0.106 R)
• M3: 860,487 km (0.051 R)
• M4: 1,235,379 km (0.094 R)
• M5: 2,024,658 km (0.101 R)
• M6: 2,613,176 km (0.083 R)
• M7: 2,893,073 km (0.118 R)
• M8: 3,411,729 km (0.048 R)
• M9: 5,073,462 km (0.1 R)
• M10: 5,455,984 km (0.047 R)
• M11: 5,828,333 km (0.082 R)
• M12: 6,217,587 km (0.085 R)
• M13: 6,688,072 km (0.114 R)
• M14: 7,148,534 km (0.114 R)
• M15: 7,559,928 km (0.117 R)
• M16: 8,355,041 km (0.092 R)
• M17: 10,239,226 km (0.113 R)
• M18: 12,488,281 km (0.089 R)
• M19: 14,229,899 km (0.117 R)
• M20: 14,771,593 km (0.095 R)
• M21: 15,159,051 km (0.112 R)
• M22: 17,688,751 km (0.108 R)
• M23: 19,282,118 km (0.104 R)
• M24: 20,830,606 km (0.043 R)
• M25: 21,108,110 km (0.09 R)
• M26: 23,418,200 km (0.1 R)
• M27: 23,793,691 km (0.083 R)
• M28: 25,336,195 km (0.106 R)
• M29: 27,108,780 km (0.095 R)
• M30: 27,523,016 km (0.086 R)

Planet 6 - Ice Giant

Semi-Major Axis: 6.66 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 90.6

Radius: 5.8

Gravity: 2.69 G

Time & Orbit

Eccentricity (e): 0.044

Orbit Range: 6.37 AU - 6.95 AU

Year: 10928 Days

Day: 21.5 Hours

Environment

Temp: -231 °C

Axial Tilt: 26.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 25,910,497 km

• M1: 72,555 km (0.052 R)
• M2: 347,217 km (0.08 R)
• M3: 805,285 km (0.101 R)
• M4: 1,628,522 km (0.091 R)
• M5: 2,083,749 km (0.089 R)
• M6: 2,522,071 km (0.115 R)
• M7: 3,479,497 km (0.069 R)
• M8: 3,832,398 km (0.109 R)
• M9: 5,113,554 km (0.088 R)
• M10: 5,793,926 km (0.101 R)
• M11: 6,230,153 km (0.114 R)
• M12: 6,410,718 km (0.035 R)
• M13: 6,594,723 km (0.059 R)
• M14: 12,006,576 km (0.07 R)
• M15: 13,054,808 km (0.081 R)
• M16: 13,351,012 km (0.074 R)
• M17: 14,686,621 km (0.107 R)
• M18: 15,114,770 km (0.106 R)
• M19: 16,853,098 km (0.092 R)
• M20: 22,295,319 km (0.11 R)
• M21: 23,003,814 km (0.043 R)

Kuiper Belt

Range: 30 - 47 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 251 - 16,780 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit