🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.27 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.53 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.38

Radius: 1.41

Gravity: 1.2 G

Time & Orbit

Eccentricity (e): 0.11

Orbit Range: 0.47 AU - 0.59 AU

Year: 253 Days

Day: 22.7 Hours

Environment

Temp: -117 °C

Axial Tilt: 6.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 35,957,228 km

• M1: 230,231 km (0.088 R)
• M2: 318,643 km (0.087 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.63 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.54

Radius: 1.45

Gravity: 1.21 G

Time & Orbit

Eccentricity (e): 0.225

Orbit Range: 0.49 AU - 0.77 AU

Year: 328 Days

Day: 19.7 Hours

Environment

Temp: -130 °C

Axial Tilt: 12.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 35,957,228 km

• M1: 584,928 km (0.025 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.95 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 264.4

Radius: 10.2

Gravity: 2.54 G

Time & Orbit

Eccentricity (e): 0.041

Orbit Range: 0.91 AU - 0.99 AU

Year: 607 Days

Day: 7 Hours

Environment

Temp: -157 °C

Axial Tilt: 27.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 35,957,228 km

• M1: 127,009 km (0.071 R)
• M2: 451,337 km (0.084 R)
• M3: 781,200 km (0.109 R)
• M4: 2,003,714 km (0.091 R)
• M5: 2,366,339 km (0.081 R)
• M6: 2,683,935 km (0.093 R)
• M7: 3,137,965 km (0.11 R)
• M8: 3,666,793 km (0.033 R)
• M9: 4,294,656 km (0.052 R)
• M10: 4,800,446 km (0.101 R)
• M11: 5,159,481 km (0.111 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.61 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 901.8

Radius: 12.3

Gravity: 5.96 G

Time & Orbit

Eccentricity (e): 0.024

Orbit Range: 2.55 AU - 2.67 AU

Year: 2766 Days

Day: 11.3 Hours

Environment

Temp: -194 °C

Axial Tilt: 41.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 35,957,228 km

• M1: 153,039 km (0.114 R)
• M2: 560,543 km (0.117 R)
• M3: 1,507,647 km (0.118 R)
• M4: 2,617,813 km (0.061 R)
• M5: 3,039,530 km (0.091 R)
• M6: 3,878,474 km (0.076 R)
• M7: 4,385,761 km (0.115 R)
• M8: 4,865,820 km (0.069 R)
• M9: 5,280,057 km (0.106 R)
• M10: 6,608,037 km (0.099 R)
• M11: 7,334,784 km (0.055 R)
• M12: 8,080,529 km (0.111 R)
• M13: 10,745,166 km (0.072 R)
• M14: 11,621,511 km (0.104 R)
• M15: 12,500,099 km (0.091 R)
• M16: 13,234,176 km (0.105 R)
• M17: 13,755,524 km (0.038 R)
• M18: 14,438,738 km (0.105 R)
• M19: 15,144,540 km (0.088 R)
• M20: 17,176,528 km (0.087 R)
• M21: 20,119,118 km (0.096 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.29 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 389.7

Radius: 9.2

Gravity: 4.6 G

Time & Orbit

Eccentricity (e): 0.121

Orbit Range: 2.89 AU - 3.69 AU

Year: 3915 Days

Day: 10.7 Hours

Environment

Temp: -207 °C

Axial Tilt: 46.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 35,957,228 km

• M1: 116,387 km (0.116 R)
• M2: 535,112 km (0.1 R)
• M3: 846,874 km (0.103 R)
• M4: 1,866,533 km (0.08 R)
• M5: 2,239,929 km (0.115 R)
• M6: 2,647,434 km (0.037 R)
• M7: 2,968,471 km (0.085 R)
• M8: 3,351,591 km (0.109 R)
• M9: 3,947,589 km (0.057 R)
• M10: 4,456,072 km (0.105 R)
• M11: 5,275,569 km (0.114 R)
• M12: 5,630,265 km (0.061 R)
• M13: 6,054,974 km (0.05 R)
• M14: 7,585,210 km (0.06 R)
• M15: 10,340,654 km (0.109 R)
• M16: 11,770,360 km (0.102 R)
• M17: 12,158,417 km (0.112 R)
• M18: 13,096,994 km (0.105 R)
• M19: 14,520,717 km (0.114 R)
• M20: 17,394,193 km (0.104 R)
• M21: 19,170,668 km (0.119 R)
• M22: 20,378,820 km (0.111 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.98 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 797.8

Radius: 14.1

Gravity: 4.01 G

Time & Orbit

Eccentricity (e): 0.046

Orbit Range: 3.8 AU - 4.16 AU

Year: 5209 Days

Day: 9.7 Hours

Environment

Temp: -206 °C

Axial Tilt: 16.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 35,957,228 km

• M1: 175,329 km (0.068 R)
• M2: 624,272 km (0.119 R)
• M3: 1,269,637 km (0.116 R)
• M4: 1,767,349 km (0.107 R)
• M5: 2,253,542 km (0.12 R)
• M6: 2,721,335 km (0.075 R)
• M7: 3,356,827 km (0.069 R)
• M8: 3,857,082 km (0.077 R)
• M9: 4,508,281 km (0.118 R)
• M10: 4,982,507 km (0.114 R)
• M11: 5,817,263 km (0.089 R)
• M12: 7,050,099 km (0.073 R)
• M13: 8,808,173 km (0.113 R)
• M14: 9,854,760 km (0.063 R)
• M15: 13,174,636 km (0.12 R)
• M16: 15,058,073 km (0.113 R)
• M17: 16,863,869 km (0.088 R)
• M18: 21,558,699 km (0.077 R)
• M19: 22,455,837 km (0.037 R)
• M20: 25,875,944 km (0.113 R)
• M21: 31,398,050 km (0.095 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.21 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 900.5

Radius: 10.7

Gravity: 7.87 G

Time & Orbit

Eccentricity (e): 0.01

Orbit Range: 4.17 AU - 4.25 AU

Year: 5667 Days

Day: 7.8 Hours

Environment

Temp: -203 °C

Axial Tilt: 20 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 35,957,228 km

• M1: 142,417 km (0.045 R)
• M2: 574,605 km (0.072 R)
• M3: 1,210,696 km (0.042 R)
• M4: 2,083,300 km (0.046 R)
• M5: 4,322,032 km (0.097 R)
• M6: 4,913,243 km (0.048 R)
• M7: 5,317,008 km (0.095 R)
• M8: 5,837,010 km (0.075 R)
• M9: 6,191,407 km (0.113 R)
• M10: 7,871,092 km (0.068 R)
• M11: 8,629,703 km (0.075 R)
• M12: 10,479,331 km (0.095 R)
• M13: 12,055,793 km (0.109 R)
• M14: 15,859,020 km (0.089 R)
• M15: 22,524,054 km (0.114 R)
• M16: 23,238,683 km (0.112 R)
• M17: 26,510,837 km (0.096 R)
• M18: 26,862,990 km (0.074 R)
• M19: 29,509,826 km (0.097 R)
• M20: 35,104,337 km (0.099 R)

Kuiper Belt

Range: 30 - 60 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 326 - 18,223 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit