🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.4 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 386.7

Radius: 12

Gravity: 2.69 G

Time & Orbit

Eccentricity (e): 0.082

Orbit Range: 0.73 AU - 0.85 AU

Year: 476 Days

Day: 8.7 Hours

Environment

Temp: -171 °C

Axial Tilt: 36.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 47,155,200 km

• M1: 149,299 km (0.073 R)
• M2: 523,742 km (0.055 R)
• M3: 958,623 km (0.073 R)
• M4: 1,395,449 km (0.09 R)
• M5: 1,875,957 km (0.064 R)
• M6: 2,299,170 km (0.101 R)
• M7: 2,886,042 km (0.065 R)
• M8: 3,410,083 km (0.089 R)
• M9: 4,034,954 km (0.047 R)
• M10: 4,429,294 km (0.119 R)
• M11: 5,039,952 km (0.091 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.21 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 450.8

Radius: 10.3

Gravity: 4.25 G

Time & Orbit

Eccentricity (e): 0.094

Orbit Range: 1.1 AU - 1.32 AU

Year: 903 Days

Day: 11.7 Hours

Environment

Temp: -184 °C

Axial Tilt: 11.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 47,155,200 km

• M1: 128,355 km (0.11 R)
• M2: 510,428 km (0.098 R)
• M3: 841,488 km (0.035 R)
• M4: 1,211,294 km (0.095 R)
• M5: 1,650,214 km (0.12 R)
• M6: 1,985,014 km (0.113 R)
• M7: 2,503,371 km (0.089 R)
• M8: 3,085,157 km (0.084 R)
• M9: 3,900,016 km (0.104 R)
• M10: 4,326,670 km (0.111 R)
• M11: 4,667,005 km (0.11 R)
• M12: 5,148,560 km (0.075 R)
• M13: 5,701,175 km (0.085 R)
• M14: 7,976,110 km (0.098 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.22 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 752.8

Radius: 9.1

Gravity: 9.09 G

Time & Orbit

Eccentricity (e): 0.012

Orbit Range: 1.21 AU - 1.23 AU

Year: 914 Days

Day: 5.6 Hours

Environment

Temp: -183 °C

Axial Tilt: 27 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 47,155,200 km

• M1: 113,246 km (0.098 R)
• M2: 469,737 km (0.061 R)
• M3: 817,253 km (0.104 R)
• M4: 1,468,602 km (0.075 R)
• M5: 2,079,560 km (0.102 R)
• M6: 2,398,951 km (0.113 R)
• M7: 3,057,780 km (0.116 R)
• M8: 3,879,073 km (0.075 R)
• M9: 4,452,182 km (0.049 R)
• M10: 4,950,194 km (0.099 R)
• M11: 5,584,638 km (0.063 R)
• M12: 6,625,241 km (0.101 R)
• M13: 7,323,265 km (0.1 R)
• M14: 7,815,142 km (0.093 R)
• M15: 8,975,274 km (0.115 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.31 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 822.5

Radius: 9.1

Gravity: 9.93 G

Time & Orbit

Eccentricity (e): 0.081

Orbit Range: 2.12 AU - 2.5 AU

Year: 2381 Days

Day: 6.3 Hours

Environment

Temp: -204 °C

Axial Tilt: 7.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 47,155,200 km

• M1: 114,143 km (0.069 R)
• M2: 406,457 km (0.052 R)
• M3: 799,900 km (0.12 R)
• M4: 1,303,446 km (0.087 R)
• M5: 1,839,605 km (0.069 R)
• M6: 2,251,897 km (0.117 R)
• M7: 2,977,596 km (0.108 R)
• M8: 3,851,397 km (0.079 R)
• M9: 4,661,769 km (0.101 R)
• M10: 6,674,010 km (0.081 R)
• M11: 7,934,970 km (0.119 R)
• M12: 9,171,397 km (0.099 R)
• M13: 10,226,810 km (0.117 R)
• M14: 11,159,702 km (0.081 R)
• M15: 11,523,823 km (0.054 R)
• M16: 17,873,505 km (0.12 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.25 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 540.4

Radius: 13.2

Gravity: 3.1 G

Time & Orbit

Eccentricity (e): 0.067

Orbit Range: 3.03 AU - 3.47 AU

Year: 3974 Days

Day: 10.2 Hours

Environment

Temp: -214 °C

Axial Tilt: 31.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 47,155,200 km

• M1: 169,046 km (0.068 R)
• M2: 596,596 km (0.092 R)
• M3: 1,018,612 km (0.096 R)
• M4: 1,531,583 km (0.104 R)
• M5: 2,273,439 km (0.054 R)
• M6: 3,703,744 km (0.106 R)
• M7: 5,613,959 km (0.067 R)
• M8: 6,723,676 km (0.051 R)
• M9: 7,219,294 km (0.093 R)
• M10: 8,249,425 km (0.11 R)
• M11: 8,709,738 km (0.103 R)
• M12: 9,375,299 km (0.106 R)
• M13: 9,955,738 km (0.09 R)
• M14: 12,752,770 km (0.06 R)
• M15: 13,225,349 km (0.093 R)
• M16: 14,611,224 km (0.065 R)
• M17: 15,076,773 km (0.117 R)
• M18: 16,201,449 km (0.105 R)
• M19: 17,152,144 km (0.047 R)
• M20: 17,787,037 km (0.099 R)
• M21: 22,610,073 km (0.115 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 262.1

Radius: 9.1

Gravity: 3.17 G

Time & Orbit

Eccentricity (e): 0.123

Orbit Range: 4.12 AU - 5.28 AU

Year: 6911 Days

Day: 5.9 Hours

Environment

Temp: -221 °C

Axial Tilt: 43.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 47,155,200 km

• M1: 118,182 km (0.099 R)
• M2: 646,412 km (0.113 R)
• M3: 967,898 km (0.075 R)
• M4: 1,646,923 km (0.037 R)
• M5: 6,663,089 km (0.118 R)
• M6: 7,381,757 km (0.08 R)
• M7: 8,705,848 km (0.107 R)
• M8: 14,615,562 km (0.109 R)
• M9: 20,391,387 km (0.111 R)
• M10: 25,764,344 km (0.109 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.98 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 279.1

Radius: 11.9

Gravity: 1.97 G

Time & Orbit

Eccentricity (e): 0.167

Orbit Range: 4.15 AU - 5.81 AU

Year: 7538 Days

Day: 9.3 Hours

Environment

Temp: -227 °C

Axial Tilt: 1.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 47,155,200 km

• M1: 152,889 km (0.112 R)
• M2: 583,880 km (0.099 R)
• M3: 1,089,671 km (0.118 R)
• M4: 2,210,907 km (0.096 R)
• M5: 3,130,485 km (0.048 R)
• M6: 3,614,285 km (0.094 R)
• M7: 4,032,560 km (0.104 R)
• M8: 4,607,166 km (0.088 R)
• M9: 5,599,747 km (0.105 R)
• M10: 6,893,320 km (0.101 R)
• M11: 7,681,402 km (0.093 R)
• M12: 9,074,308 km (0.079 R)
• M13: 9,684,517 km (0.096 R)
• M14: 12,403,459 km (0.074 R)
• M15: 12,800,940 km (0.081 R)
• M16: 13,937,884 km (0.105 R)
• M17: 17,319,245 km (0.053 R)
• M18: 18,322,897 km (0.066 R)
• M19: 19,833,087 km (0.112 R)
• M20: 21,001,447 km (0.12 R)
• M21: 22,142,579 km (0.064 R)
• M22: 22,581,051 km (0.069 R)
• M23: 27,206,318 km (0.054 R)
• M24: 29,343,772 km (0.12 R)

Planet 8 - Gas Giant

Semi-Major Axis: 5.49 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 856.8

Radius: 11.5

Gravity: 6.48 G

Time & Orbit

Eccentricity (e): 0.226

Orbit Range: 4.25 AU - 6.73 AU

Year: 8725 Days

Day: 14.5 Hours

Environment

Temp: -231 °C

Axial Tilt: 47.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 47,155,200 km

• M1: 143,315 km (0.119 R)
• M2: 536,308 km (0.116 R)
• M3: 913,445 km (0.104 R)
• M4: 1,756,877 km (0.064 R)
• M5: 2,447,870 km (0.114 R)
• M6: 2,846,847 km (0.04 R)
• M7: 3,312,546 km (0.06 R)
• M8: 4,455,623 km (0.091 R)
• M9: 5,342,140 km (0.114 R)
• M10: 6,161,637 km (0.117 R)
• M11: 8,007,376 km (0.036 R)
• M12: 9,896,797 km (0.117 R)
• M13: 12,467,038 km (0.088 R)
• M14: 13,720,369 km (0.073 R)
• M15: 16,898,127 km (0.06 R)
• M16: 18,356,556 km (0.069 R)
• M17: 20,295,345 km (0.117 R)
• M18: 20,861,872 km (0.111 R)
• M19: 25,780,500 km (0.052 R)
• M20: 28,407,289 km (0.084 R)
• M21: 28,912,631 km (0.039 R)
• M22: 30,254,524 km (0.107 R)
• M23: 33,621,373 km (0.116 R)
• M24: 34,989,296 km (0.1 R)
• M25: 39,943,080 km (0.095 R)
• M26: 44,390,475 km (0.073 R)

Kuiper Belt

Range: 30 - 57 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 186 - 13,001 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit