🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.27 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.54 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.96

Radius: 1.9

Gravity: 1.37 G

Time & Orbit

Eccentricity (e): 0.048

Orbit Range: 0.51 AU - 0.57 AU

Year: 260 Days

Day: 14.6 Hours

Environment

Temp: -122 °C

Axial Tilt: 34.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 78,134,806 km

• M1: 103,372 km (0.082 R)

Asteroid Belt

Center: 0.86 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 2 - Gas Giant

Semi-Major Axis: 1.17 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 593.3

Radius: 14.4

Gravity: 2.86 G

Time & Orbit

Eccentricity (e): 0.031

Orbit Range: 1.13 AU - 1.21 AU

Year: 830 Days

Day: 13 Hours

Environment

Temp: -162 °C

Axial Tilt: 43.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 78,134,806 km

• M1: 179,069 km (0.108 R)
• M2: 757,414 km (0.068 R)
• M3: 1,212,042 km (0.108 R)
• M4: 1,849,329 km (0.097 R)
• M5: 2,880,507 km (0.076 R)
• M6: 3,588,255 km (0.102 R)
• M7: 4,738,513 km (0.117 R)
• M8: 5,226,650 km (0.111 R)
• M9: 5,825,790 km (0.092 R)
• M10: 6,963,182 km (0.106 R)
• M11: 8,169,989 km (0.116 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.24 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 767.9

Radius: 13.6

Gravity: 4.15 G

Time & Orbit

Eccentricity (e): 0.165

Orbit Range: 1.04 AU - 1.44 AU

Year: 906 Days

Day: 8.2 Hours

Environment

Temp: -178 °C

Axial Tilt: 18.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 78,134,806 km

• M1: 169,195 km (0.12 R)
• M2: 641,476 km (0.103 R)
• M3: 1,068,877 km (0.071 R)
• M4: 1,630,766 km (0.091 R)
• M5: 2,880,806 km (0.114 R)
• M6: 3,315,089 km (0.104 R)
• M7: 4,572,309 km (0.118 R)
• M8: 5,475,132 km (0.064 R)
• M9: 5,938,287 km (0.107 R)
• M10: 7,487,822 km (0.087 R)
• M11: 8,634,789 km (0.098 R)
• M12: 9,634,103 km (0.063 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.74 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 820.7

Radius: 14.9

Gravity: 3.7 G

Time & Orbit

Eccentricity (e): 0.243

Orbit Range: 1.32 AU - 2.16 AU

Year: 1506 Days

Day: 13.9 Hours

Environment

Temp: -188 °C

Axial Tilt: 5.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 78,134,806 km

• M1: 185,501 km (0.051 R)
• M2: 701,165 km (0.093 R)
• M3: 1,421,778 km (0.062 R)
• M4: 2,049,940 km (0.113 R)
• M5: 2,669,724 km (0.065 R)
• M6: 3,288,311 km (0.049 R)
• M7: 4,776,959 km (0.102 R)
• M8: 5,538,412 km (0.094 R)
• M9: 6,404,285 km (0.081 R)
• M10: 7,118,315 km (0.046 R)
• M11: 8,230,127 km (0.058 R)
• M12: 9,044,089 km (0.045 R)
• M13: 10,519,573 km (0.083 R)
• M14: 12,303,078 km (0.106 R)
• M15: 13,327,674 km (0.071 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.17 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 13.2

Radius: 13

Gravity: 0.08 G

Time & Orbit

Eccentricity (e): 0.037

Orbit Range: 2.09 AU - 2.25 AU

Year: 2097 Days

Day: 12.3 Hours

Environment

Temp: -194 °C

Axial Tilt: 26.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 78,134,806 km

• M1: 169,046 km (0.05 R)
• M2: 587,471 km (0.049 R)
• M3: 1,489,097 km (0.059 R)
• M4: 2,334,774 km (0.065 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.91 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 361.9

Radius: 10.7

Gravity: 3.16 G

Time & Orbit

Eccentricity (e): 0.008

Orbit Range: 2.89 AU - 2.93 AU

Year: 3256 Days

Day: 8.4 Hours

Environment

Temp: -206 °C

Axial Tilt: 12.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 78,134,806 km

• M1: 132,993 km (0.083 R)
• M2: 468,092 km (0.104 R)
• M3: 900,430 km (0.071 R)
• M4: 1,342,641 km (0.117 R)
• M5: 2,197,593 km (0.104 R)
• M6: 3,129,587 km (0.106 R)
• M7: 5,203,014 km (0.117 R)
• M8: 5,536,168 km (0.077 R)
• M9: 6,705,276 km (0.063 R)
• M10: 10,733,647 km (0.106 R)
• M11: 12,797,051 km (0.054 R)
• M12: 14,684,826 km (0.072 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.55 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 640.5

Radius: 8.9

Gravity: 8.09 G

Time & Orbit

Eccentricity (e): 0.078

Orbit Range: 3.27 AU - 3.83 AU

Year: 4388 Days

Day: 11.9 Hours

Environment

Temp: -216 °C

Axial Tilt: 29.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 78,134,806 km

• M1: 110,702 km (0.112 R)
• M2: 460,462 km (0.102 R)
• M3: 1,053,169 km (0.085 R)
• M4: 1,759,271 km (0.106 R)
• M5: 3,500,291 km (0.113 R)
• M6: 7,309,950 km (0.099 R)
• M7: 8,623,420 km (0.105 R)
• M8: 9,798,810 km (0.108 R)
• M9: 10,297,719 km (0.114 R)
• M10: 12,320,731 km (0.054 R)
• M11: 13,099,837 km (0.087 R)
• M12: 16,605,812 km (0.097 R)
• M13: 17,255,217 km (0.034 R)
• M14: 18,604,889 km (0.116 R)
• M15: 20,289,211 km (0.108 R)
• M16: 22,356,055 km (0.074 R)
• M17: 22,857,807 km (0.089 R)

Planet 8 - Gas Giant

Semi-Major Axis: 4.34 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 583.5

Radius: 13.3

Gravity: 3.3 G

Time & Orbit

Eccentricity (e): 0.237

Orbit Range: 3.31 AU - 5.37 AU

Year: 5931 Days

Day: 13.5 Hours

Environment

Temp: -208 °C

Axial Tilt: 49 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 78,134,806 km

• M1: 166,951 km (0.059 R)
• M2: 726,298 km (0.058 R)
• M3: 1,191,547 km (0.033 R)
• M4: 1,605,185 km (0.117 R)
• M5: 2,920,898 km (0.039 R)
• M6: 3,716,609 km (0.036 R)
• M7: 4,448,293 km (0.102 R)
• M8: 4,997,317 km (0.103 R)
• M9: 5,709,552 km (0.098 R)
• M10: 6,819,569 km (0.04 R)
• M11: 8,888,507 km (0.045 R)
• M12: 9,634,552 km (0.102 R)
• M13: 11,110,783 km (0.095 R)
• M14: 12,175,472 km (0.062 R)
• M15: 15,366,992 km (0.093 R)
• M16: 16,749,875 km (0.112 R)
• M17: 17,695,633 km (0.105 R)
• M18: 20,180,454 km (0.112 R)
• M19: 27,611,129 km (0.1 R)
• M20: 28,752,262 km (0.076 R)
• M21: 30,107,469 km (0.03 R)
• M22: 31,222,123 km (0.025 R)
• M23: 31,980,285 km (0.076 R)

Planet 9 - Ice Giant

Semi-Major Axis: 10.53 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 590.5

Radius: 6.2

Gravity: 15.36 G

Time & Orbit

Eccentricity (e): 0.004

Orbit Range: 10.49 AU - 10.57 AU

Year: 22416 Days

Day: 15.3 Hours

Environment

Temp: -241 °C

Axial Tilt: 43.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 78,134,806 km

• M1: 134,040 km (0.119 R)
• M2: 595,699 km (0.115 R)
• M3: 789,727 km (0.094 R)
• M4: 1,051,823 km (0.083 R)
• M5: 1,846,337 km (0.114 R)
• M6: 2,658,953 km (0.094 R)
• M7: 5,737,228 km (0.083 R)
• M8: 10,070,330 km (0.06 R)
• M9: 10,492,495 km (0.086 R)
• M10: 11,764,077 km (0.11 R)
• M11: 14,762,318 km (0.077 R)
• M12: 23,136,059 km (0.119 R)
• M13: 24,838,183 km (0.075 R)
• M14: 26,394,600 km (0.118 R)
• M15: 28,014,744 km (0.095 R)
• M16: 28,609,246 km (0.094 R)
• M17: 30,818,807 km (0.119 R)
• M18: 34,072,710 km (0.102 R)
• M19: 34,342,585 km (0.072 R)
• M20: 37,692,380 km (0.106 R)
• M21: 37,980,955 km (0.113 R)
• M22: 42,022,790 km (0.111 R)
• M23: 46,507,584 km (0.107 R)
• M24: 49,899,567 km (0.086 R)
• M25: 53,090,040 km (0.058 R)
• M26: 63,881,432 km (0.089 R)
• M27: 67,213,426 km (0.057 R)
• M28: 71,759,855 km (0.098 R)
• M29: 74,902,008 km (0.11 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: 355 - 12,429 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit