🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.26 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.52 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.57

Radius: 1.46

Gravity: 1.21 G

Time & Orbit

Eccentricity (e): 0.086

Orbit Range: 0.48 AU - 0.56 AU

Year: 246 Days

Day: 47.5 Hours

Environment

Temp: -120 °C

Axial Tilt: 26.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 959.9

Radius: 11

Gravity: 7.93 G

Time & Orbit

Eccentricity (e): 0.123

Orbit Range: 0.64 AU - 0.82 AU

Year: 409 Days

Day: 14.6 Hours

Environment

Temp: -132 °C

Axial Tilt: 35.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 30,857,475 km

• M1: 136,732 km (0.084 R)
• M2: 639,232 km (0.085 R)
• M3: 1,007,990 km (0.077 R)
• M4: 1,824,795 km (0.104 R)
• M5: 2,302,012 km (0.108 R)
• M6: 3,049,104 km (0.098 R)
• M7: 3,713,169 km (0.11 R)
• M8: 4,311,859 km (0.098 R)
• M9: 5,296,662 km (0.098 R)
• M10: 6,056,619 km (0.109 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.01 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 865.9

Radius: 8.8

Gravity: 11.18 G

Time & Orbit

Eccentricity (e): 0.187

Orbit Range: 0.82 AU - 1.2 AU

Year: 666 Days

Day: 6.3 Hours

Environment

Temp: -162 °C

Axial Tilt: 33.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 30,857,475 km

• M1: 109,506 km (0.085 R)
• M2: 463,604 km (0.083 R)
• M3: 835,205 km (0.04 R)
• M4: 1,888,823 km (0.082 R)
• M5: 2,375,315 km (0.088 R)
• M6: 2,682,888 km (0.088 R)
• M7: 3,130,335 km (0.117 R)
• M8: 3,683,698 km (0.105 R)
• M9: 4,559,594 km (0.104 R)
• M10: 5,955,192 km (0.087 R)
• M11: 7,179,950 km (0.05 R)
• M12: 8,166,249 km (0.073 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.36 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 796.8

Radius: 12

Gravity: 5.53 G

Time & Orbit

Eccentricity (e): 0.031

Orbit Range: 1.32 AU - 1.4 AU

Year: 1040 Days

Day: 14.9 Hours

Environment

Temp: -166 °C

Axial Tilt: 14 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 30,857,475 km

• M1: 149,299 km (0.111 R)
• M2: 574,007 km (0.099 R)
• M3: 1,030,131 km (0.069 R)
• M4: 1,989,801 km (0.101 R)
• M5: 2,490,206 km (0.115 R)
• M6: 3,716,609 km (0.106 R)
• M7: 4,464,599 km (0.078 R)
• M8: 4,998,065 km (0.089 R)
• M9: 5,656,595 km (0.088 R)
• M10: 6,083,248 km (0.116 R)
• M11: 6,462,927 km (0.107 R)
• M12: 7,494,554 km (0.106 R)
• M13: 8,358,482 km (0.094 R)
• M14: 8,744,444 km (0.107 R)
• M15: 10,252,840 km (0.085 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.15 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 927.8

Radius: 13.9

Gravity: 4.8 G

Time & Orbit

Eccentricity (e): 0.089

Orbit Range: 2.87 AU - 3.43 AU

Year: 3668 Days

Day: 7.3 Hours

Environment

Temp: -198 °C

Axial Tilt: 26.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 30,857,475 km

• M1: 173,085 km (0.059 R)
• M2: 851,960 km (0.099 R)
• M3: 1,574,069 km (0.085 R)
• M4: 2,380,102 km (0.118 R)
• M5: 3,733,364 km (0.117 R)
• M6: 4,471,780 km (0.086 R)
• M7: 5,120,586 km (0.117 R)
• M8: 5,860,347 km (0.113 R)
• M9: 7,417,960 km (0.043 R)
• M10: 7,970,575 km (0.072 R)
• M11: 8,403,062 km (0.113 R)
• M12: 8,927,403 km (0.05 R)
• M13: 9,877,349 km (0.115 R)
• M14: 10,504,613 km (0.091 R)
• M15: 11,472,661 km (0.107 R)
• M16: 12,644,012 km (0.084 R)
• M17: 15,114,471 km (0.12 R)
• M18: 15,891,931 km (0.117 R)
• M19: 17,647,762 km (0.117 R)
• M20: 18,824,798 km (0.092 R)
• M21: 20,519,442 km (0.101 R)
• M22: 21,266,235 km (0.093 R)
• M23: 21,890,656 km (0.098 R)
• M24: 25,044,479 km (0.103 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.42 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 443.6

Radius: 12.2

Gravity: 2.98 G

Time & Orbit

Eccentricity (e): 0.171

Orbit Range: 3.66 AU - 5.18 AU

Year: 6096 Days

Day: 13.3 Hours

Environment

Temp: -207 °C

Axial Tilt: 8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 30,857,475 km

• M1: 151,692 km (0.091 R)
• M2: 1,078,900 km (0.072 R)
• M3: 1,535,622 km (0.11 R)
• M4: 2,493,647 km (0.091 R)
• M5: 3,270,957 km (0.098 R)
• M6: 3,684,446 km (0.085 R)
• M7: 4,346,716 km (0.09 R)
• M8: 4,745,095 km (0.118 R)
• M9: 6,818,671 km (0.118 R)
• M10: 7,358,869 km (0.076 R)
• M11: 8,640,923 km (0.053 R)
• M12: 9,113,203 km (0.043 R)
• M13: 10,413,508 km (0.105 R)
• M14: 11,315,882 km (0.097 R)
• M15: 12,917,627 km (0.102 R)
• M16: 16,687,044 km (0.099 R)
• M17: 25,343,824 km (0.085 R)
• M18: 26,724,912 km (0.081 R)
• M19: 27,224,269 km (0.113 R)
• M20: 27,729,761 km (0.073 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.55 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 24.7

Radius: 12

Gravity: 0.17 G

Time & Orbit

Eccentricity (e): 0.16

Orbit Range: 3.82 AU - 5.28 AU

Year: 6367 Days

Day: 8.2 Hours

Environment

Temp: -219 °C

Axial Tilt: 2.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 30,857,475 km

• M1: 149,598 km (0.079 R)
• M2: 600,037 km (0.049 R)
• M3: 1,037,461 km (0.102 R)
• M4: 6,321,108 km (0.11 R)

Planet 8 - Gas Giant

Semi-Major Axis: 4.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 401.3

Radius: 11.5

Gravity: 3.03 G

Time & Orbit

Eccentricity (e): 0.211

Orbit Range: 3.73 AU - 5.73 AU

Year: 6748 Days

Day: 12.4 Hours

Environment

Temp: -213 °C

Axial Tilt: 45.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 30,857,475 km

• M1: 143,016 km (0.111 R)
• M2: 676,631 km (0.114 R)
• M3: 1,762,712 km (0.076 R)
• M4: 3,455,561 km (0.059 R)
• M5: 4,664,162 km (0.118 R)
• M6: 5,197,628 km (0.099 R)
• M7: 12,042,479 km (0.099 R)
• M8: 12,945,751 km (0.111 R)
• M9: 16,345,363 km (0.093 R)
• M10: 17,140,026 km (0.119 R)
• M11: 17,768,637 km (0.111 R)
• M12: 21,360,781 km (0.059 R)
• M13: 22,015,421 km (0.053 R)
• M14: 25,410,545 km (0.084 R)
• M15: 25,980,961 km (0.075 R)
• M16: 26,560,055 km (0.082 R)

Kuiper Belt

Range: 30 - 56 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 277 - 13,821 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit