🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.34 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.68 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 754.1

Radius: 11.1

Gravity: 6.12 G

Time & Orbit

Eccentricity (e): 0.146

Orbit Range: 0.58 AU - 0.78 AU

Year: 368 Days

Day: 5.7 Hours

Environment

Temp: -136 °C

Axial Tilt: 36.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 63,864,421 km

• M1: 138,079 km (0.071 R)
• M2: 556,354 km (0.048 R)
• M3: 923,468 km (0.03 R)
• M4: 1,510,789 km (0.067 R)
• M5: 2,443,681 km (0.101 R)
• M6: 3,016,192 km (0.096 R)
• M7: 3,676,218 km (0.11 R)
• M8: 4,212,526 km (0.074 R)
• M9: 4,742,103 km (0.08 R)
• M10: 5,442,371 km (0.11 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.94 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 429.6

Radius: 10.7

Gravity: 3.75 G

Time & Orbit

Eccentricity (e): 0.075

Orbit Range: 0.87 AU - 1.01 AU

Year: 598 Days

Day: 15 Hours

Environment

Temp: -162 °C

Axial Tilt: 17.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 63,864,421 km

• M1: 133,142 km (0.063 R)
• M2: 488,886 km (0.111 R)
• M3: 851,062 km (0.077 R)
• M4: 1,419,983 km (0.093 R)
• M5: 1,955,095 km (0.085 R)
• M6: 2,443,980 km (0.061 R)
• M7: 2,914,466 km (0.098 R)
• M8: 3,568,358 km (0.097 R)
• M9: 4,232,423 km (0.1 R)
• M10: 5,430,852 km (0.11 R)
• M11: 5,806,641 km (0.079 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.13 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 335.6

Radius: 15

Gravity: 1.49 G

Time & Orbit

Eccentricity (e): 0.026

Orbit Range: 1.1 AU - 1.16 AU

Year: 788 Days

Day: 5.7 Hours

Environment

Temp: -164 °C

Axial Tilt: 17.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 63,864,421 km

• M1: 186,549 km (0.103 R)
• M2: 683,662 km (0.087 R)
• M3: 1,170,155 km (0.114 R)
• M4: 1,820,905 km (0.099 R)
• M5: 2,293,036 km (0.111 R)
• M6: 2,772,797 km (0.114 R)
• M7: 3,381,660 km (0.063 R)
• M8: 4,093,147 km (0.071 R)
• M9: 4,951,241 km (0.095 R)
• M10: 5,588,079 km (0.111 R)
• M11: 6,626,138 km (0.054 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.24 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 584.5

Radius: 14.2

Gravity: 2.9 G

Time & Orbit

Eccentricity (e): 0.049

Orbit Range: 1.18 AU - 1.3 AU

Year: 906 Days

Day: 14.2 Hours

Environment

Temp: -169 °C

Axial Tilt: 34.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 63,864,421 km

• M1: 176,675 km (0.106 R)
• M2: 823,985 km (0.042 R)
• M3: 1,327,980 km (0.059 R)
• M4: 1,850,825 km (0.098 R)
• M5: 2,680,644 km (0.111 R)
• M6: 3,234,904 km (0.079 R)
• M7: 4,661,320 km (0.114 R)
• M8: 5,738,574 km (0.078 R)
• M9: 7,202,389 km (0.107 R)
• M10: 8,615,042 km (0.079 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.07 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 681.6

Radius: 11.6

Gravity: 5.07 G

Time & Orbit

Eccentricity (e): 0.177

Orbit Range: 1.7 AU - 2.44 AU

Year: 1954 Days

Day: 7.2 Hours

Environment

Temp: -190 °C

Axial Tilt: 41.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 63,864,421 km

• M1: 144,362 km (0.102 R)
• M2: 718,070 km (0.112 R)
• M3: 1,098,796 km (0.059 R)
• M4: 1,551,330 km (0.075 R)
• M5: 1,954,646 km (0.093 R)
• M6: 2,454,901 km (0.105 R)
• M7: 3,894,930 km (0.077 R)
• M8: 4,349,857 km (0.026 R)
• M9: 4,734,922 km (0.078 R)
• M10: 5,644,776 km (0.107 R)
• M11: 6,254,537 km (0.118 R)
• M12: 7,377,569 km (0.092 R)
• M13: 7,868,549 km (0.113 R)
• M14: 9,175,885 km (0.108 R)
• M15: 10,586,892 km (0.099 R)
• M16: 11,100,312 km (0.086 R)
• M17: 11,823,767 km (0.091 R)
• M18: 12,296,646 km (0.116 R)
• M19: 12,905,509 km (0.093 R)
• M20: 13,364,775 km (0.101 R)
• M21: 14,315,918 km (0.067 R)
• M22: 14,944,378 km (0.07 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.31 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 215.8

Radius: 8.5

Gravity: 2.99 G

Time & Orbit

Eccentricity (e): 0.064

Orbit Range: 2.16 AU - 2.46 AU

Year: 2303 Days

Day: 12.2 Hours

Environment

Temp: -188 °C

Axial Tilt: 32.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 63,864,421 km

• M1: 105,766 km (0.054 R)
• M2: 706,252 km (0.07 R)
• M3: 1,031,777 km (0.052 R)
• M4: 1,833,771 km (0.111 R)
• M5: 2,575,627 km (0.049 R)
• M6: 3,001,232 km (0.079 R)
• M7: 5,630,565 km (0.11 R)
• M8: 8,498,356 km (0.045 R)
• M9: 9,170,649 km (0.112 R)
• M10: 9,752,285 km (0.086 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.49 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 577.1

Radius: 9.2

Gravity: 6.82 G

Time & Orbit

Eccentricity (e): 0.093

Orbit Range: 3.17 AU - 3.81 AU

Year: 4277 Days

Day: 6.3 Hours

Environment

Temp: -200 °C

Axial Tilt: 5.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 63,864,421 km

• M1: 114,442 km (0.062 R)
• M2: 463,753 km (0.114 R)
• M3: 764,595 km (0.12 R)
• M4: 1,084,884 km (0.038 R)
• M5: 1,529,339 km (0.119 R)
• M6: 1,982,920 km (0.058 R)
• M7: 3,528,266 km (0.09 R)
• M8: 4,187,992 km (0.1 R)
• M9: 4,655,785 km (0.115 R)
• M10: 5,836,411 km (0.09 R)
• M11: 7,271,205 km (0.08 R)
• M12: 8,410,093 km (0.118 R)
• M13: 10,907,929 km (0.096 R)
• M14: 12,302,480 km (0.116 R)
• M15: 13,660,829 km (0.097 R)
• M16: 14,376,355 km (0.087 R)
• M17: 16,788,322 km (0.115 R)
• M18: 17,078,542 km (0.092 R)
• M19: 17,609,165 km (0.066 R)
• M20: 20,429,235 km (0.091 R)
• M21: 20,760,145 km (0.067 R)
• M22: 21,705,604 km (0.036 R)
• M23: 22,538,565 km (0.11 R)
• M24: 23,609,686 km (0.094 R)
• M25: 24,416,317 km (0.113 R)
• M26: 24,789,115 km (0.105 R)

Planet 8 - Ice Giant

Semi-Major Axis: 8.4 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 635.2

Radius: 4.2

Gravity: 36.01 G

Time & Orbit

Eccentricity (e): 0.217

Orbit Range: 6.58 AU - 10.22 AU

Year: 15971 Days

Day: 20.4 Hours

Environment

Temp: -230 °C

Axial Tilt: 4.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 63,864,421 km

• M1: 52,509 km (0.117 R)
• M2: 333,753 km (0.067 R)
• M3: 891,005 km (0.087 R)
• M4: 1,186,760 km (0.083 R)
• M5: 1,322,296 km (0.088 R)
• M6: 2,955,605 km (0.117 R)
• M7: 5,341,093 km (0.062 R)
• M8: 5,675,444 km (0.067 R)
• M9: 7,332,240 km (0.072 R)
• M10: 9,660,283 km (0.114 R)
• M11: 10,553,531 km (0.074 R)
• M12: 11,139,057 km (0.113 R)
• M13: 11,745,826 km (0.102 R)
• M14: 12,120,270 km (0.096 R)
• M15: 14,679,291 km (0.034 R)
• M16: 15,113,723 km (0.11 R)
• M17: 17,495,920 km (0.044 R)
• M18: 19,244,569 km (0.082 R)
• M19: 20,924,105 km (0.094 R)
• M20: 23,672,068 km (0.071 R)
• M21: 24,978,356 km (0.076 R)
• M22: 25,493,422 km (0.055 R)
• M23: 32,601,714 km (0.068 R)
• M24: 37,202,597 km (0.083 R)
• M25: 41,495,757 km (0.101 R)
• M26: 48,139,248 km (0.045 R)
• M27: 61,407,981 km (0.054 R)
• M28: 62,722,647 km (0.118 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: 313 - 18,492 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit