🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.42 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.83 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 933.7

Radius: 13.4

Gravity: 5.2 G

Time & Orbit

Eccentricity (e): 0.096

Orbit Range: 0.75 AU - 0.91 AU

Year: 522 Days

Day: 10.3 Hours

Environment

Temp: -161 °C

Axial Tilt: 15.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 31,116,286 km

• M1: 166,652 km (0.115 R)
• M2: 597,045 km (0.096 R)
• M3: 1,169,407 km (0.114 R)
• M4: 1,649,317 km (0.041 R)
• M5: 2,168,571 km (0.115 R)
• M6: 2,698,297 km (0.086 R)
• M7: 3,951,777 km (0.112 R)
• M8: 4,467,292 km (0.034 R)
• M9: 5,077,801 km (0.031 R)
• M10: 7,357,522 km (0.114 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.39 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 889.2

Radius: 12.8

Gravity: 5.43 G

Time & Orbit

Eccentricity (e): 0.15

Orbit Range: 1.18 AU - 1.6 AU

Year: 1131 Days

Day: 6.7 Hours

Environment

Temp: -190 °C

Axial Tilt: 34.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 31,116,286 km

• M1: 159,172 km (0.113 R)
• M2: 604,974 km (0.106 R)
• M3: 1,502,411 km (0.06 R)
• M4: 1,905,877 km (0.106 R)
• M5: 2,382,795 km (0.085 R)
• M6: 2,819,022 km (0.117 R)
• M7: 3,279,185 km (0.067 R)
• M8: 3,773,457 km (0.088 R)
• M9: 4,854,900 km (0.117 R)
• M10: 5,821,601 km (0.068 R)
• M11: 6,339,359 km (0.112 R)
• M12: 8,413,235 km (0.092 R)
• M13: 9,255,321 km (0.112 R)
• M14: 10,184,922 km (0.113 R)
• M15: 11,175,859 km (0.091 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.63 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 880.3

Radius: 14.4

Gravity: 4.25 G

Time & Orbit

Eccentricity (e): 0.15

Orbit Range: 1.39 AU - 1.87 AU

Year: 1436 Days

Day: 13.8 Hours

Environment

Temp: -201 °C

Axial Tilt: 38 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 31,116,286 km

• M1: 179,218 km (0.095 R)
• M2: 738,714 km (0.116 R)
• M3: 1,381,387 km (0.091 R)
• M4: 2,463,877 km (0.071 R)
• M5: 3,289,208 km (0.052 R)
• M6: 4,367,510 km (0.098 R)
• M7: 5,295,166 km (0.109 R)
• M8: 6,229,405 km (0.113 R)
• M9: 6,851,433 km (0.101 R)
• M10: 7,514,600 km (0.091 R)
• M11: 8,162,359 km (0.076 R)
• M12: 9,377,692 km (0.057 R)
• M13: 10,641,046 km (0.06 R)
• M14: 11,977,404 km (0.078 R)
• M15: 12,433,977 km (0.12 R)
• M16: 13,422,968 km (0.077 R)
• M17: 14,082,994 km (0.039 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.98 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 867

Radius: 14.9

Gravity: 3.91 G

Time & Orbit

Eccentricity (e): 0.25

Orbit Range: 1.49 AU - 2.48 AU

Year: 1923 Days

Day: 11.7 Hours

Environment

Temp: -201 °C

Axial Tilt: 121.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 31,116,286 km

• M1: 185,352 km (0.119 R)
• M2: 862,881 km (0.116 R)
• M3: 1,406,818 km (0.112 R)
• M4: 3,202,591 km (0.079 R)
• M5: 3,767,024 km (0.108 R)
• M6: 4,377,682 km (0.106 R)
• M7: 5,487,998 km (0.113 R)
• M8: 6,431,960 km (0.086 R)
• M9: 7,110,387 km (0.115 R)
• M10: 8,048,216 km (0.104 R)
• M11: 8,804,583 km (0.105 R)
• M12: 9,301,098 km (0.068 R)
• M13: 10,754,741 km (0.119 R)
• M14: 12,978,812 km (0.095 R)
• M15: 14,837,566 km (0.036 R)
• M16: 15,542,620 km (0.102 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.25 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 650.8

Radius: 11.6

Gravity: 4.84 G

Time & Orbit

Eccentricity (e): 0.016

Orbit Range: 2.21 AU - 2.29 AU

Year: 2330 Days

Day: 10.5 Hours

Environment

Temp: -201 °C

Axial Tilt: 38.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 31,116,286 km

• M1: 144,212 km (0.049 R)
• M2: 584,778 km (0.119 R)
• M3: 997,668 km (0.082 R)
• M4: 1,541,456 km (0.117 R)
• M5: 1,993,242 km (0.071 R)
• M6: 2,869,287 km (0.116 R)
• M7: 3,668,888 km (0.102 R)
• M8: 4,341,480 km (0.062 R)
• M9: 5,301,599 km (0.1 R)
• M10: 6,162,235 km (0.114 R)
• M11: 7,974,015 km (0.099 R)
• M12: 10,080,952 km (0.089 R)
• M13: 10,745,765 km (0.057 R)
• M14: 11,400,106 km (0.112 R)
• M15: 11,837,530 km (0.113 R)
• M16: 12,286,174 km (0.076 R)
• M17: 13,834,512 km (0.107 R)
• M18: 14,889,476 km (0.064 R)
• M19: 15,751,908 km (0.028 R)
• M20: 16,902,016 km (0.091 R)

Planet 6 - Ice Giant

Semi-Major Axis: 6.1 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 367.7

Radius: 6.1

Gravity: 9.88 G

Time & Orbit

Eccentricity (e): 0.006

Orbit Range: 6.06 AU - 6.14 AU

Year: 10399 Days

Day: 23 Hours

Environment

Temp: -229 °C

Axial Tilt: 37.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 31,116,286 km

• M1: 88,412 km (0.091 R)
• M2: 729,888 km (0.03 R)
• M3: 1,039,256 km (0.112 R)
• M4: 2,766,513 km (0.106 R)
• M5: 3,053,891 km (0.113 R)
• M6: 3,688,485 km (0.11 R)
• M7: 7,312,344 km (0.096 R)
• M8: 9,541,502 km (0.077 R)
• M9: 20,280,684 km (0.08 R)
• M10: 30,850,222 km (0.069 R)
• M11: 31,254,586 km (0.082 R)
• M12: 34,077,946 km (0.069 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.87 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 121.3

Radius: 7.8

Gravity: 1.99 G

Time & Orbit

Eccentricity (e): 0.124

Orbit Range: 6.02 AU - 7.72 AU

Year: 12429 Days

Day: 16.6 Hours

Environment

Temp: -239 °C

Axial Tilt: 46.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 31,116,286 km

• M1: 97,687 km (0.114 R)
• M2: 341,382 km (0.079 R)
• M3: 700,866 km (0.096 R)
• M4: 1,075,758 km (0.075 R)
• M5: 1,556,267 km (0.087 R)
• M6: 1,853,368 km (0.032 R)
• M7: 2,282,116 km (0.077 R)
• M8: 2,942,590 km (0.07 R)
• M9: 3,701,949 km (0.108 R)
• M10: 4,163,458 km (0.107 R)
• M11: 4,534,461 km (0.038 R)
• M12: 5,090,816 km (0.119 R)
• M13: 5,342,738 km (0.076 R)
• M14: 6,307,046 km (0.082 R)
• M15: 6,663,987 km (0.116 R)
• M16: 7,779,688 km (0.104 R)
• M17: 15,159,650 km (0.114 R)
• M18: 19,012,543 km (0.073 R)
• M19: 20,382,710 km (0.094 R)
• M20: 20,664,552 km (0.068 R)

Kuiper Belt

Range: 30 - 54 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 434 - 20,156 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit