🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.27 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.53 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.29

Radius: 1.11

Gravity: 1.05 G

Time & Orbit

Eccentricity (e): 0.211

Orbit Range: 0.42 AU - 0.64 AU

Year: 249 Days

Day: 28 Hours

Environment

Temp: -112 °C

Axial Tilt: 4.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 77,511,763 km

• M1: 25,880 km (0.063 R)
• M2: 168,746 km (0.115 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.78 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 857.3

Radius: 10.4

Gravity: 7.93 G

Time & Orbit

Eccentricity (e): 0.167

Orbit Range: 0.65 AU - 0.91 AU

Year: 445 Days

Day: 14.1 Hours

Environment

Temp: -153 °C

Axial Tilt: 23.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 77,511,763 km

• M1: 129,402 km (0.078 R)
• M2: 480,808 km (0.054 R)
• M3: 977,323 km (0.069 R)
• M4: 1,331,271 km (0.107 R)
• M5: 1,718,431 km (0.108 R)
• M6: 2,327,892 km (0.118 R)
• M7: 2,941,244 km (0.058 R)
• M8: 3,432,374 km (0.045 R)
• M9: 3,855,885 km (0.114 R)
• M10: 4,655,037 km (0.026 R)
• M11: 5,257,767 km (0.055 R)
• M12: 5,699,529 km (0.099 R)
• M13: 6,074,422 km (0.106 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.84 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 770.6

Radius: 9.8

Gravity: 8.02 G

Time & Orbit

Eccentricity (e): 0.066

Orbit Range: 0.78 AU - 0.9 AU

Year: 497 Days

Day: 14.3 Hours

Environment

Temp: -152 °C

Axial Tilt: 13.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 77,511,763 km

• M1: 121,922 km (0.091 R)
• M2: 564,732 km (0.117 R)
• M3: 979,268 km (0.11 R)
• M4: 1,366,876 km (0.053 R)
• M5: 2,421,092 km (0.113 R)
• M6: 3,905,851 km (0.048 R)
• M7: 4,301,836 km (0.104 R)
• M8: 4,740,158 km (0.101 R)
• M9: 5,258,216 km (0.069 R)
• M10: 6,523,664 km (0.099 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.49 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 509.4

Radius: 13.3

Gravity: 2.88 G

Time & Orbit

Eccentricity (e): 0.218

Orbit Range: 1.17 AU - 1.81 AU

Year: 1174 Days

Day: 6.3 Hours

Environment

Temp: -177 °C

Axial Tilt: 28 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 77,511,763 km

• M1: 165,455 km (0.029 R)
• M2: 732,282 km (0.028 R)
• M3: 1,182,571 km (0.116 R)
• M4: 1,879,847 km (0.102 R)
• M5: 2,468,814 km (0.095 R)
• M6: 2,889,932 km (0.114 R)
• M7: 4,268,027 km (0.107 R)
• M8: 5,920,186 km (0.115 R)
• M9: 6,729,660 km (0.097 R)
• M10: 7,390,434 km (0.048 R)
• M11: 8,569,564 km (0.087 R)
• M12: 9,635,300 km (0.098 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.12 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 246.5

Radius: 13.2

Gravity: 1.41 G

Time & Orbit

Eccentricity (e): 0.068

Orbit Range: 1.98 AU - 2.26 AU

Year: 1993 Days

Day: 6.9 Hours

Environment

Temp: -191 °C

Axial Tilt: 41.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 77,511,763 km

• M1: 165,006 km (0.055 R)
• M2: 635,043 km (0.054 R)
• M3: 1,295,069 km (0.098 R)
• M4: 1,910,514 km (0.116 R)
• M5: 2,806,007 km (0.096 R)
• M6: 3,284,720 km (0.076 R)
• M7: 3,931,731 km (0.036 R)
• M8: 6,721,881 km (0.101 R)
• M9: 7,357,672 km (0.088 R)
• M10: 8,497,009 km (0.089 R)
• M11: 9,689,903 km (0.12 R)
• M12: 10,534,532 km (0.111 R)
• M13: 11,024,615 km (0.1 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.14 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 220.3

Radius: 10.5

Gravity: 2 G

Time & Orbit

Eccentricity (e): 0.055

Orbit Range: 2.02 AU - 2.26 AU

Year: 2021 Days

Day: 10.8 Hours

Environment

Temp: -198 °C

Axial Tilt: 6.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 77,511,763 km

• M1: 130,599 km (0.119 R)
• M2: 490,083 km (0.096 R)
• M3: 840,740 km (0.103 R)
• M4: 1,321,248 km (0.11 R)
• M5: 1,702,573 km (0.073 R)
• M6: 2,323,255 km (0.105 R)
• M7: 3,403,651 km (0.111 R)
• M8: 3,916,323 km (0.11 R)
• M9: 4,373,494 km (0.072 R)
• M10: 4,753,622 km (0.065 R)
• M11: 5,274,671 km (0.118 R)
• M12: 5,962,971 km (0.096 R)
• M13: 7,646,246 km (0.112 R)
• M14: 8,308,217 km (0.093 R)
• M15: 9,240,062 km (0.117 R)
• M16: 10,177,592 km (0.088 R)
• M17: 11,011,750 km (0.092 R)

Planet 7 - Ice Giant

Semi-Major Axis: 10.29 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 637.7

Radius: 5.6

Gravity: 20.33 G

Time & Orbit

Eccentricity (e): 0.162

Orbit Range: 8.62 AU - 11.96 AU

Year: 21313 Days

Day: 17.1 Hours

Environment

Temp: -234 °C

Axial Tilt: 18.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (38)

Outer Limit: 77,511,763 km

• M1: 70,012 km (0.115 R)
• M2: 506,389 km (0.093 R)
• M3: 727,046 km (0.119 R)
• M4: 1,011,880 km (0.08 R)
• M5: 1,353,711 km (0.111 R)
• M6: 1,645,277 km (0.114 R)
• M7: 2,266,857 km (0.116 R)
• M8: 2,703,682 km (0.095 R)
• M9: 3,390,037 km (0.087 R)
• M10: 3,713,019 km (0.051 R)
• M11: 4,285,530 km (0.054 R)
• M12: 4,558,247 km (0.11 R)
• M13: 4,734,473 km (0.101 R)
• M14: 5,930,957 km (0.104 R)
• M15: 6,141,292 km (0.113 R)
• M16: 6,666,530 km (0.06 R)
• M17: 7,509,664 km (0.081 R)
• M18: 8,109,850 km (0.042 R)
• M19: 11,862,064 km (0.052 R)
• M20: 12,061,927 km (0.089 R)
• M21: 12,331,801 km (0.09 R)
• M22: 14,261,015 km (0.095 R)
• M23: 15,494,300 km (0.103 R)
• M24: 17,133,893 km (0.066 R)
• M25: 25,510,027 km (0.096 R)
• M26: 33,797,151 km (0.046 R)
• M27: 34,740,216 km (0.107 R)
• M28: 36,117,713 km (0.116 R)
• M29: 39,720,030 km (0.091 R)
• M30: 45,317,234 km (0.065 R)
• M31: 47,126,920 km (0.09 R)
• M32: 50,539,845 km (0.114 R)
• M33: 50,714,576 km (0.03 R)
• M34: 52,844,251 km (0.061 R)
• M35: 54,663,960 km (0.107 R)
• M36: 65,423,786 km (0.093 R)
• M37: 70,749,022 km (0.083 R)
• M38: 74,984,138 km (0.088 R)

Kuiper Belt

Range: 30 - 55 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 397 - 19,525 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit