🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.41 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 288.1

Radius: 12.3

Gravity: 1.9 G

Time & Orbit

Eccentricity (e): 0.071

Orbit Range: 0.75 AU - 0.87 AU

Year: 478 Days

Day: 8.8 Hours

Environment

Temp: -152 °C

Axial Tilt: 35.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 28,024,305 km

• M1: 153,487 km (0.11 R)
• M2: 578,645 km (0.084 R)
• M3: 1,005,298 km (0.099 R)
• M4: 1,487,302 km (0.103 R)
• M5: 2,427,674 km (0.089 R)
• M6: 3,126,595 km (0.056 R)
• M7: 3,695,067 km (0.073 R)
• M8: 4,501,998 km (0.104 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.87 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 679.2

Radius: 8.8

Gravity: 8.77 G

Time & Orbit

Eccentricity (e): 0.155

Orbit Range: 0.74 AU - 1 AU

Year: 532 Days

Day: 14.3 Hours

Environment

Temp: -149 °C

Axial Tilt: 48.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 28,024,305 km

• M1: 110,553 km (0.058 R)
• M2: 541,694 km (0.103 R)
• M3: 850,015 km (0.058 R)
• M4: 1,222,663 km (0.102 R)
• M5: 1,789,191 km (0.068 R)
• M6: 2,353,025 km (0.067 R)
• M7: 3,738,301 km (0.1 R)
• M8: 4,025,380 km (0.065 R)
• M9: 4,644,266 km (0.067 R)
• M10: 5,444,764 km (0.08 R)
• M11: 5,796,768 km (0.107 R)
• M12: 6,277,127 km (0.081 R)
• M13: 6,763,918 km (0.082 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.88 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 386.3

Radius: 13.3

Gravity: 2.18 G

Time & Orbit

Eccentricity (e): 0

Orbit Range: 0.88 AU - 0.88 AU

Year: 542 Days

Day: 13.3 Hours

Environment

Temp: -159 °C

Axial Tilt: 22 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 28,024,305 km

• M1: 165,605 km (0.104 R)
• M2: 618,438 km (0.105 R)
• M3: 1,157,888 km (0.096 R)
• M4: 1,769,144 km (0.076 R)
• M5: 2,629,183 km (0.107 R)
• M6: 3,155,468 km (0.087 R)
• M7: 4,244,391 km (0.105 R)
• M8: 5,265,995 km (0.097 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.95 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 662.2

Radius: 9.6

Gravity: 7.19 G

Time & Orbit

Eccentricity (e): 0.004

Orbit Range: 0.95 AU - 0.95 AU

Year: 607 Days

Day: 8.8 Hours

Environment

Temp: -153 °C

Axial Tilt: 32.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 28,024,305 km

• M1: 119,379 km (0.114 R)
• M2: 570,117 km (0.093 R)
• M3: 998,416 km (0.061 R)
• M4: 1,467,705 km (0.091 R)
• M5: 1,770,790 km (0.081 R)
• M6: 2,116,211 km (0.06 R)
• M7: 2,424,832 km (0.112 R)
• M8: 3,538,139 km (0.116 R)
• M9: 4,653,990 km (0.113 R)
• M10: 5,045,637 km (0.109 R)
• M11: 5,602,141 km (0.087 R)
• M12: 5,970,451 km (0.107 R)
• M13: 6,433,756 km (0.053 R)
• M14: 6,837,969 km (0.078 R)
• M15: 7,280,480 km (0.083 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.72 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 288.4

Radius: 12.1

Gravity: 1.97 G

Time & Orbit

Eccentricity (e): 0.161

Orbit Range: 1.44 AU - 2 AU

Year: 1480 Days

Day: 6.6 Hours

Environment

Temp: -187 °C

Axial Tilt: 28.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 28,024,305 km

• M1: 150,645 km (0.099 R)
• M2: 574,905 km (0.033 R)
• M3: 971,040 km (0.109 R)
• M4: 2,256,983 km (0.092 R)
• M5: 3,970,327 km (0.027 R)
• M6: 5,451,047 km (0.104 R)
• M7: 8,665,606 km (0.115 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 991.6

Radius: 13.6

Gravity: 5.36 G

Time & Orbit

Eccentricity (e): 0.128

Orbit Range: 1.53 AU - 1.97 AU

Year: 1519 Days

Day: 11.5 Hours

Environment

Temp: -185 °C

Axial Tilt: 19.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 28,024,305 km

• M1: 170,990 km (0.114 R)
• M2: 743,053 km (0.091 R)
• M3: 1,168,210 km (0.097 R)
• M4: 1,805,198 km (0.058 R)
• M5: 2,266,408 km (0.038 R)
• M6: 3,026,066 km (0.078 R)
• M7: 4,969,043 km (0.044 R)
• M8: 6,205,768 km (0.091 R)
• M9: 7,897,421 km (0.063 R)
• M10: 8,402,613 km (0.071 R)
• M11: 9,217,024 km (0.045 R)
• M12: 9,676,888 km (0.106 R)
• M13: 10,221,424 km (0.097 R)
• M14: 12,567,119 km (0.076 R)
• M15: 14,015,376 km (0.076 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.19 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 178

Radius: 13.8

Gravity: 0.93 G

Time & Orbit

Eccentricity (e): 0.018

Orbit Range: 2.15 AU - 2.23 AU

Year: 2126 Days

Day: 11.4 Hours

Environment

Temp: -203 °C

Axial Tilt: 15.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 28,024,305 km

• M1: 171,589 km (0.072 R)
• M2: 612,005 km (0.096 R)
• M3: 1,097,600 km (0.082 R)
• M4: 2,004,911 km (0.071 R)
• M5: 3,130,335 km (0.098 R)
• M6: 3,633,732 km (0.037 R)
• M7: 4,258,453 km (0.116 R)
• M8: 5,641,784 km (0.086 R)
• M9: 7,630,389 km (0.05 R)
• M10: 8,413,983 km (0.095 R)
• M11: 8,993,974 km (0.056 R)
• M12: 9,719,074 km (0.091 R)
• M13: 10,265,107 km (0.075 R)

Planet 8 - Gas Giant

Semi-Major Axis: 2.51 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 393.1

Radius: 13.6

Gravity: 2.13 G

Time & Orbit

Eccentricity (e): 0.112

Orbit Range: 2.23 AU - 2.79 AU

Year: 2609 Days

Day: 8.1 Hours

Environment

Temp: -193 °C

Axial Tilt: 2.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 28,024,305 km

• M1: 169,943 km (0.08 R)
• M2: 726,746 km (0.105 R)
• M3: 1,176,138 km (0.087 R)
• M4: 2,205,073 km (0.053 R)
• M5: 3,930,834 km (0.086 R)
• M6: 6,507,208 km (0.093 R)
• M7: 8,378,079 km (0.111 R)
• M8: 11,476,251 km (0.093 R)
• M9: 11,940,304 km (0.079 R)
• M10: 16,165,995 km (0.118 R)

Planet 9 - Gas Giant

Semi-Major Axis: 4.82 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 605.1

Radius: 11.9

Gravity: 4.27 G

Time & Orbit

Eccentricity (e): 0.01

Orbit Range: 4.77 AU - 4.87 AU

Year: 6942 Days

Day: 7.3 Hours

Environment

Temp: -224 °C

Axial Tilt: 3.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 28,024,305 km

• M1: 154,235 km (0.109 R)
• M2: 632,051 km (0.042 R)
• M3: 1,358,049 km (0.091 R)
• M4: 4,094,494 km (0.072 R)
• M5: 6,763,320 km (0.088 R)
• M6: 8,706,297 km (0.09 R)
• M7: 9,739,121 km (0.091 R)
• M8: 11,094,028 km (0.101 R)
• M9: 14,117,551 km (0.118 R)
• M10: 15,602,460 km (0.075 R)
• M11: 16,863,420 km (0.113 R)
• M12: 24,703,096 km (0.087 R)
• M13: 28,846,359 km (0.115 R)

Planet 10 - Ice Giant

Semi-Major Axis: 11 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 23.9

Radius: 3.9

Gravity: 1.57 G

Time & Orbit

Eccentricity (e): 0.12

Orbit Range: 9.68 AU - 12.32 AU

Year: 23933 Days

Day: 19.7 Hours

Environment

Temp: -223 °C

Axial Tilt: 18 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 28,024,305 km

• M1: 54,005 km (0.092 R)
• M2: 190,887 km (0.054 R)
• M3: 1,072,318 km (0.097 R)
• M4: 2,150,918 km (0.064 R)
• M5: 2,597,767 km (0.093 R)
• M6: 3,503,732 km (0.117 R)
• M7: 5,148,112 km (0.029 R)
• M8: 10,533,934 km (0.107 R)
• M9: 17,657,037 km (0.06 R)
• M10: 19,704,134 km (0.102 R)
• M11: 23,433,459 km (0.113 R)

Kuiper Belt

Range: 30 - 45 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 393 - 15,630 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit