🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.43 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.85 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 630.3

Radius: 13.2

Gravity: 3.62 G

Time & Orbit

Eccentricity (e): 0.018

Orbit Range: 0.83 AU - 0.87 AU

Year: 523 Days

Day: 6.8 Hours

Environment

Temp: -174 °C

Axial Tilt: 19.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 40,939,310 km

• M1: 164,109 km (0.11 R)
• M2: 614,847 km (0.099 R)
• M3: 1,031,777 km (0.059 R)
• M4: 1,462,170 km (0.075 R)
• M5: 2,170,366 km (0.079 R)
• M6: 2,665,984 km (0.102 R)
• M7: 3,098,322 km (0.117 R)
• M8: 3,705,240 km (0.109 R)
• M9: 4,120,673 km (0.028 R)
• M10: 4,764,393 km (0.107 R)
• M11: 5,627,872 km (0.085 R)
• M12: 6,365,389 km (0.114 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.2 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 930.5

Radius: 13

Gravity: 5.51 G

Time & Orbit

Eccentricity (e): 0.126

Orbit Range: 1.05 AU - 1.35 AU

Year: 877 Days

Day: 10.3 Hours

Environment

Temp: -189 °C

Axial Tilt: 27.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 40,939,310 km

• M1: 161,715 km (0.064 R)
• M2: 741,108 km (0.111 R)
• M3: 1,741,020 km (0.117 R)
• M4: 2,184,428 km (0.081 R)
• M5: 3,113,431 km (0.098 R)
• M6: 4,530,272 km (0.097 R)
• M7: 5,227,548 km (0.119 R)
• M8: 6,101,798 km (0.061 R)
• M9: 8,219,206 km (0.106 R)
• M10: 9,487,796 km (0.119 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.49 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 988

Radius: 10.8

Gravity: 8.47 G

Time & Orbit

Eccentricity (e): 0.03

Orbit Range: 1.45 AU - 1.53 AU

Year: 1213 Days

Day: 6.3 Hours

Environment

Temp: -182 °C

Axial Tilt: 138.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 40,939,310 km

• M1: 135,087 km (0.083 R)
• M2: 485,445 km (0.073 R)
• M3: 1,039,556 km (0.106 R)
• M4: 1,737,130 km (0.062 R)
• M5: 2,503,371 km (0.071 R)
• M6: 3,774,953 km (0.106 R)
• M7: 4,192,032 km (0.083 R)
• M8: 5,057,605 km (0.046 R)
• M9: 5,414,097 km (0.058 R)
• M10: 5,787,343 km (0.093 R)
• M11: 7,376,821 km (0.119 R)
• M12: 7,726,730 km (0.101 R)
• M13: 8,843,777 km (0.059 R)
• M14: 9,208,347 km (0.089 R)
• M15: 9,773,977 km (0.108 R)
• M16: 11,719,348 km (0.054 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.82 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 958.2

Radius: 9.9

Gravity: 9.78 G

Time & Orbit

Eccentricity (e): 0.154

Orbit Range: 1.54 AU - 2.1 AU

Year: 1637 Days

Day: 10.9 Hours

Environment

Temp: -190 °C

Axial Tilt: 11.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 40,939,310 km

• M1: 123,119 km (0.118 R)
• M2: 491,728 km (0.057 R)
• M3: 897,288 km (0.075 R)
• M4: 1,905,877 km (0.118 R)
• M5: 2,426,926 km (0.059 R)
• M6: 3,213,362 km (0.057 R)
• M7: 3,666,195 km (0.113 R)
• M8: 4,066,369 km (0.119 R)
• M9: 4,455,174 km (0.095 R)
• M10: 4,826,327 km (0.076 R)
• M11: 5,285,293 km (0.111 R)
• M12: 6,265,907 km (0.105 R)
• M13: 8,710,037 km (0.104 R)
• M14: 9,193,687 km (0.029 R)
• M15: 9,627,072 km (0.063 R)
• M16: 10,039,214 km (0.086 R)
• M17: 11,009,805 km (0.085 R)
• M18: 11,768,116 km (0.115 R)
• M19: 14,120,992 km (0.098 R)
• M20: 15,016,185 km (0.102 R)
• M21: 15,853,784 km (0.04 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.18 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 382.7

Radius: 12

Gravity: 2.66 G

Time & Orbit

Eccentricity (e): 0.109

Orbit Range: 1.94 AU - 2.42 AU

Year: 2146 Days

Day: 6.8 Hours

Environment

Temp: -202 °C

Axial Tilt: 18.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 40,939,310 km

• M1: 149,299 km (0.088 R)
• M2: 807,978 km (0.119 R)
• M3: 1,494,483 km (0.08 R)
• M4: 1,920,687 km (0.047 R)
• M5: 2,478,986 km (0.114 R)
• M6: 2,881,405 km (0.099 R)
• M7: 3,265,572 km (0.108 R)
• M8: 4,475,071 km (0.083 R)
• M9: 4,870,458 km (0.092 R)
• M10: 5,441,473 km (0.066 R)
• M11: 6,199,785 km (0.099 R)
• M12: 6,769,004 km (0.104 R)
• M13: 7,508,766 km (0.027 R)
• M14: 8,994,123 km (0.053 R)
• M15: 12,193,274 km (0.092 R)
• M16: 13,695,386 km (0.104 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.84 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 479.3

Radius: 13.4

Gravity: 2.67 G

Time & Orbit

Eccentricity (e): 0.206

Orbit Range: 2.25 AU - 3.43 AU

Year: 3192 Days

Day: 10.5 Hours

Environment

Temp: -212 °C

Axial Tilt: 22.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 40,939,310 km

• M1: 166,652 km (0.112 R)
• M2: 603,927 km (0.097 R)
• M3: 1,197,531 km (0.061 R)
• M4: 1,626,727 km (0.117 R)
• M5: 2,160,941 km (0.087 R)
• M6: 2,689,620 km (0.075 R)
• M7: 3,150,681 km (0.105 R)
• M8: 5,653,902 km (0.1 R)
• M9: 6,093,720 km (0.082 R)
• M10: 6,640,500 km (0.082 R)
• M11: 7,400,307 km (0.104 R)
• M12: 10,992,751 km (0.1 R)
• M13: 11,930,729 km (0.085 R)
• M14: 12,788,972 km (0.084 R)
• M15: 13,414,142 km (0.111 R)
• M16: 14,294,974 km (0.055 R)
• M17: 15,865,153 km (0.104 R)
• M18: 17,277,208 km (0.093 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.06 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 740.8

Radius: 14.8

Gravity: 3.38 G

Time & Orbit

Eccentricity (e): 0.156

Orbit Range: 4.27 AU - 5.85 AU

Year: 7590 Days

Day: 5.3 Hours

Environment

Temp: -220 °C

Axial Tilt: 14.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 40,939,310 km

• M1: 238,309 km (0.085 R)
• M2: 900,430 km (0.084 R)
• M3: 1,433,746 km (0.102 R)
• M4: 1,946,418 km (0.1 R)
• M5: 2,657,905 km (0.106 R)
• M6: 3,775,401 km (0.109 R)
• M7: 4,776,361 km (0.103 R)
• M8: 6,817,773 km (0.047 R)
• M9: 8,259,897 km (0.119 R)
• M10: 11,273,396 km (0.113 R)
• M11: 13,984,110 km (0.093 R)
• M12: 14,894,413 km (0.075 R)
• M13: 16,699,012 km (0.077 R)
• M14: 21,683,015 km (0.105 R)
• M15: 24,081,966 km (0.098 R)
• M16: 25,124,663 km (0.076 R)
• M17: 27,863,052 km (0.113 R)
• M18: 30,093,108 km (0.037 R)
• M19: 34,251,180 km (0.052 R)
• M20: 36,241,730 km (0.071 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: 306 - 15,072 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit