🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.4 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 485.3

Radius: 15

Gravity: 2.16 G

Time & Orbit

Eccentricity (e): 0.003

Orbit Range: 0.79 AU - 0.79 AU

Year: 485 Days

Day: 13 Hours

Environment

Temp: -158 °C

Axial Tilt: 29.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 61,424,198 km

• M1: 186,549 km (0.086 R)
• M2: 801,695 km (0.05 R)
• M3: 1,343,838 km (0.065 R)
• M4: 1,991,297 km (0.12 R)
• M5: 2,513,543 km (0.074 R)
• M6: 3,501,189 km (0.107 R)
• M7: 4,778,754 km (0.077 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.89 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 77.5

Radius: 13

Gravity: 0.46 G

Time & Orbit

Eccentricity (e): 0.075

Orbit Range: 0.82 AU - 0.96 AU

Year: 580 Days

Day: 6.1 Hours

Environment

Temp: -168 °C

Axial Tilt: 34.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 61,424,198 km

• M1: 161,715 km (0.104 R)
• M2: 606,021 km (0.105 R)
• M3: 1,135,149 km (0.086 R)
• M4: 1,546,992 km (0.079 R)
• M5: 2,102,748 km (0.108 R)
• M6: 2,639,804 km (0.057 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.19 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 966.1

Radius: 13.3

Gravity: 5.46 G

Time & Orbit

Eccentricity (e): 0.239

Orbit Range: 0.91 AU - 1.47 AU

Year: 896 Days

Day: 8.8 Hours

Environment

Temp: -181 °C

Axial Tilt: 26.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 61,424,198 km

• M1: 165,455 km (0.098 R)
• M2: 615,894 km (0.06 R)
• M3: 1,435,392 km (0.117 R)
• M4: 1,852,919 km (0.088 R)
• M5: 2,364,245 km (0.093 R)
• M6: 3,022,625 km (0.061 R)
• M7: 3,542,178 km (0.115 R)
• M8: 4,088,360 km (0.112 R)
• M9: 4,600,883 km (0.075 R)
• M10: 5,470,645 km (0.068 R)
• M11: 6,789,649 km (0.053 R)
• M12: 7,586,706 km (0.118 R)
• M13: 8,717,816 km (0.079 R)
• M14: 9,252,180 km (0.117 R)
• M15: 9,748,844 km (0.092 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.5 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 203.5

Radius: 13.1

Gravity: 1.19 G

Time & Orbit

Eccentricity (e): 0.228

Orbit Range: 1.16 AU - 1.84 AU

Year: 1268 Days

Day: 6.2 Hours

Environment

Temp: -199 °C

Axial Tilt: 38.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 61,424,198 km

• M1: 163,062 km (0.092 R)
• M2: 596,896 km (0.082 R)
• M3: 1,163,572 km (0.12 R)
• M4: 2,899,356 km (0.104 R)
• M5: 4,033,308 km (0.074 R)
• M6: 5,300,103 km (0.083 R)
• M7: 7,884,406 km (0.096 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 896

Radius: 12.9

Gravity: 5.38 G

Time & Orbit

Eccentricity (e): 0.198

Orbit Range: 2.41 AU - 3.59 AU

Year: 3587 Days

Day: 7.2 Hours

Environment

Temp: -205 °C

Axial Tilt: 23.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 61,424,198 km

• M1: 160,369 km (0.086 R)
• M2: 586,424 km (0.097 R)
• M3: 1,014,274 km (0.096 R)
• M4: 2,670,771 km (0.118 R)
• M5: 3,312,097 km (0.114 R)
• M6: 4,536,406 km (0.106 R)
• M7: 4,954,981 km (0.091 R)
• M8: 6,643,791 km (0.111 R)
• M9: 7,722,242 km (0.115 R)
• M10: 8,213,671 km (0.094 R)
• M11: 8,800,992 km (0.103 R)
• M12: 9,694,092 km (0.103 R)
• M13: 12,309,212 km (0.093 R)
• M14: 12,738,558 km (0.076 R)
• M15: 15,145,438 km (0.087 R)
• M16: 17,540,350 km (0.119 R)
• M17: 19,143,740 km (0.119 R)
• M18: 21,045,129 km (0.082 R)
• M19: 22,146,469 km (0.109 R)
• M20: 24,240,091 km (0.111 R)
• M21: 25,143,961 km (0.089 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.09 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 782.6

Radius: 9

Gravity: 9.66 G

Time & Orbit

Eccentricity (e): 0.023

Orbit Range: 3.02 AU - 3.16 AU

Year: 3749 Days

Day: 14.4 Hours

Environment

Temp: -208 °C

Axial Tilt: 32.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 61,424,198 km

• M1: 113,395 km (0.09 R)
• M2: 395,836 km (0.03 R)
• M3: 784,790 km (0.111 R)
• M4: 1,195,885 km (0.083 R)
• M5: 1,772,286 km (0.062 R)
• M6: 2,571,737 km (0.111 R)
• M7: 3,573,444 km (0.059 R)
• M8: 4,242,446 km (0.078 R)
• M9: 5,494,281 km (0.102 R)
• M10: 7,269,260 km (0.101 R)
• M11: 8,634,340 km (0.11 R)
• M12: 10,287,247 km (0.099 R)
• M13: 10,969,114 km (0.076 R)
• M14: 11,726,379 km (0.104 R)
• M15: 12,470,479 km (0.102 R)
• M16: 13,746,249 km (0.102 R)
• M17: 15,052,987 km (0.095 R)
• M18: 16,612,844 km (0.107 R)
• M19: 20,710,928 km (0.098 R)
• M20: 21,046,326 km (0.032 R)
• M21: 24,528,815 km (0.088 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.33 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 768.2

Radius: 4.1

Gravity: 45.7 G

Time & Orbit

Eccentricity (e): 0.051

Orbit Range: 6.96 AU - 7.7 AU

Year: 13698 Days

Day: 23.1 Hours

Environment

Temp: -221 °C

Axial Tilt: 19.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 61,424,198 km

• M1: 51,013 km (0.12 R)
• M2: 201,957 km (0.109 R)
• M3: 331,658 km (0.119 R)
• M4: 534,663 km (0.1 R)
• M5: 1,456,784 km (0.115 R)
• M6: 3,580,775 km (0.109 R)
• M7: 5,532,578 km (0.101 R)
• M8: 6,103,144 km (0.049 R)
• M9: 6,261,568 km (0.101 R)
• M10: 7,722,691 km (0.073 R)
• M11: 9,931,354 km (0.04 R)
• M12: 11,963,791 km (0.092 R)
• M13: 15,178,948 km (0.1 R)
• M14: 20,037,887 km (0.106 R)
• M15: 21,192,334 km (0.105 R)
• M16: 29,175,774 km (0.058 R)
• M17: 30,195,582 km (0.05 R)
• M18: 35,016,673 km (0.077 R)
• M19: 40,326,200 km (0.107 R)
• M20: 43,756,180 km (0.101 R)

Kuiper Belt

Range: 30 - 56 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 165 - 17,286 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit