🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.3 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.6 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 470

Radius: 10

Gravity: 4.7 G

Time & Orbit

Eccentricity (e): 0.07

Orbit Range: 0.56 AU - 0.64 AU

Year: 327 Days

Day: 9.1 Hours

Environment

Temp: -156 °C

Axial Tilt: 35.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 25,225,490 km

• M1: 127,009 km (0.083 R)
• M2: 501,602 km (0.027 R)
• M3: 826,229 km (0.064 R)
• M4: 1,723,367 km (0.114 R)
• M5: 2,177,547 km (0.059 R)
• M6: 2,840,116 km (0.076 R)
• M7: 3,213,961 km (0.085 R)
• M8: 3,676,667 km (0.11 R)
• M9: 4,085,817 km (0.082 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 135.6

Radius: 8.7

Gravity: 1.79 G

Time & Orbit

Eccentricity (e): 0.235

Orbit Range: 0.56 AU - 0.9 AU

Year: 438 Days

Day: 12.4 Hours

Environment

Temp: -152 °C

Axial Tilt: 45.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 25,225,490 km

• M1: 108,159 km (0.055 R)
• M2: 402,717 km (0.078 R)
• M3: 718,369 km (0.09 R)
• M4: 1,297,462 km (0.115 R)
• M5: 1,705,117 km (0.066 R)
• M6: 2,256,085 km (0.058 R)
• M7: 2,537,030 km (0.119 R)
• M8: 3,085,456 km (0.075 R)
• M9: 3,453,168 km (0.109 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.74 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 384

Radius: 13

Gravity: 2.27 G

Time & Orbit

Eccentricity (e): 0.078

Orbit Range: 0.68 AU - 0.8 AU

Year: 447 Days

Day: 13.4 Hours

Environment

Temp: -152 °C

Axial Tilt: 10.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 25,225,490 km

• M1: 161,715 km (0.083 R)
• M2: 589,266 km (0.062 R)
• M3: 1,021,753 km (0.044 R)
• M4: 1,491,341 km (0.098 R)
• M5: 1,998,328 km (0.069 R)
• M6: 2,519,976 km (0.073 R)
• M7: 2,997,941 km (0.059 R)
• M8: 3,548,013 km (0.082 R)
• M9: 4,320,087 km (0.047 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.16 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 400.6

Radius: 14

Gravity: 2.04 G

Time & Orbit

Eccentricity (e): 0.224

Orbit Range: 0.9 AU - 1.42 AU

Year: 878 Days

Day: 5.7 Hours

Environment

Temp: -185 °C

Axial Tilt: 39.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 25,225,490 km

• M1: 174,132 km (0.109 R)
• M2: 616,044 km (0.113 R)
• M3: 1,057,807 km (0.105 R)
• M4: 1,724,714 km (0.077 R)
• M5: 2,233,197 km (0.117 R)
• M6: 4,169,592 km (0.048 R)
• M7: 4,764,842 km (0.116 R)
• M8: 5,257,019 km (0.114 R)
• M9: 5,858,253 km (0.096 R)
• M10: 6,364,193 km (0.081 R)
• M11: 6,962,734 km (0.077 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.53 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 150.4

Radius: 13.9

Gravity: 0.78 G

Time & Orbit

Eccentricity (e): 0.102

Orbit Range: 1.37 AU - 1.69 AU

Year: 1330 Days

Day: 13.6 Hours

Environment

Temp: -192 °C

Axial Tilt: 15.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 25,225,490 km

• M1: 199,713 km (0.064 R)
• M2: 647,609 km (0.098 R)
• M3: 1,269,039 km (0.113 R)
• M4: 2,058,018 km (0.094 R)
• M5: 2,886,790 km (0.082 R)
• M6: 5,004,498 km (0.1 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 470.6

Radius: 8.2

Gravity: 7 G

Time & Orbit

Eccentricity (e): 0.159

Orbit Range: 1.42 AU - 1.96 AU

Year: 1544 Days

Day: 11.3 Hours

Environment

Temp: -196 °C

Axial Tilt: 14.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 25,225,490 km

• M1: 103,223 km (0.092 R)
• M2: 384,467 km (0.107 R)
• M3: 829,221 km (0.115 R)
• M4: 1,109,418 km (0.113 R)
• M5: 1,584,092 km (0.071 R)
• M6: 2,121,447 km (0.078 R)
• M7: 2,445,327 km (0.111 R)
• M8: 3,092,038 km (0.048 R)
• M9: 3,402,005 km (0.111 R)
• M10: 5,699,828 km (0.089 R)
• M11: 6,009,047 km (0.09 R)
• M12: 8,051,657 km (0.094 R)
• M13: 9,625,725 km (0.112 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 200.2

Radius: 8.7

Gravity: 2.64 G

Time & Orbit

Eccentricity (e): 0.005

Orbit Range: 2.8 AU - 2.82 AU

Year: 3311 Days

Day: 10.1 Hours

Environment

Temp: -203 °C

Axial Tilt: 17.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 25,225,490 km

• M1: 114,592 km (0.066 R)
• M2: 1,068,428 km (0.089 R)
• M3: 3,134,524 km (0.089 R)
• M4: 6,587,841 km (0.036 R)
• M5: 7,532,702 km (0.06 R)
• M6: 8,082,175 km (0.108 R)
• M7: 8,565,226 km (0.11 R)
• M8: 9,622,584 km (0.111 R)
• M9: 10,165,475 km (0.075 R)
• M10: 14,032,579 km (0.081 R)
• M11: 14,466,413 km (0.06 R)

Planet 8 - Gas Giant

Semi-Major Axis: 4.67 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 198.4

Radius: 11.6

Gravity: 1.47 G

Time & Orbit

Eccentricity (e): 0.08

Orbit Range: 4.3 AU - 5.04 AU

Year: 7094 Days

Day: 9.3 Hours

Environment

Temp: -226 °C

Axial Tilt: 10.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 25,225,490 km

• M1: 148,401 km (0.069 R)
• M2: 1,062,145 km (0.115 R)
• M3: 1,445,863 km (0.049 R)
• M4: 3,186,285 km (0.109 R)
• M5: 5,427,560 km (0.111 R)
• M6: 7,322,217 km (0.096 R)
• M7: 10,349,031 km (0.091 R)
• M8: 10,895,662 km (0.105 R)
• M9: 13,130,804 km (0.061 R)
• M10: 15,330,790 km (0.101 R)
• M11: 19,044,707 km (0.11 R)
• M12: 21,989,541 km (0.103 R)
• M13: 24,851,198 km (0.11 R)

Kuiper Belt

Range: 30 - 51 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 255 - 10,467 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit