🌌 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: 921

Radius: 14.9

Gravity: 4.15 G

Time & Orbit

Eccentricity (e): 0.094

Orbit Range: 0.54 AU - 0.66 AU

Year: 321 Days

Day: 11.5 Hours

Environment

Temp: -149 °C

Axial Tilt: 37.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 44,045,163 km

• M1: 185,352 km (0.1 R)
• M2: 670,946 km (0.1 R)
• M3: 1,170,603 km (0.096 R)
• M4: 1,729,052 km (0.085 R)
• M5: 2,215,844 km (0.105 R)
• M6: 3,296,239 km (0.096 R)
• M7: 4,006,979 km (0.081 R)
• M8: 4,847,569 km (0.056 R)
• M9: 5,325,834 km (0.087 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.23 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 998.1

Radius: 11.4

Gravity: 7.68 G

Time & Orbit

Eccentricity (e): 0.043

Orbit Range: 1.18 AU - 1.28 AU

Year: 942 Days

Day: 7.5 Hours

Environment

Temp: -191 °C

Axial Tilt: 29.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 44,045,163 km

• M1: 141,819 km (0.071 R)
• M2: 566,826 km (0.075 R)
• M3: 964,607 km (0.079 R)
• M4: 1,464,414 km (0.036 R)
• M5: 1,832,873 km (0.116 R)
• M6: 2,286,155 km (0.119 R)
• M7: 2,662,543 km (0.043 R)
• M8: 3,163,546 km (0.118 R)
• M9: 5,291,127 km (0.102 R)
• M10: 6,065,446 km (0.104 R)
• M11: 6,677,002 km (0.041 R)
• M12: 7,379,214 km (0.083 R)
• M13: 9,277,611 km (0.084 R)
• M14: 10,152,459 km (0.049 R)
• M15: 10,722,577 km (0.031 R)
• M16: 11,081,313 km (0.088 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.78 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 239.2

Radius: 9.8

Gravity: 2.49 G

Time & Orbit

Eccentricity (e): 0.246

Orbit Range: 1.34 AU - 2.22 AU

Year: 1639 Days

Day: 14.7 Hours

Environment

Temp: -202 °C

Axial Tilt: 16.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 44,045,163 km

• M1: 121,922 km (0.105 R)
• M2: 561,291 km (0.085 R)
• M3: 904,918 km (0.087 R)
• M4: 1,340,696 km (0.119 R)
• M5: 1,774,530 km (0.12 R)
• M6: 2,080,757 km (0.095 R)
• M7: 3,881,018 km (0.045 R)
• M8: 4,202,204 km (0.098 R)
• M9: 4,593,552 km (0.093 R)
• M10: 5,390,759 km (0.074 R)
• M11: 6,169,715 km (0.111 R)
• M12: 7,163,195 km (0.084 R)
• M13: 8,903,616 km (0.049 R)
• M14: 9,436,484 km (0.09 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.95 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 21.6

Radius: 8.4

Gravity: 0.31 G

Time & Orbit

Eccentricity (e): 0.05

Orbit Range: 2.8 AU - 3.1 AU

Year: 3497 Days

Day: 11.6 Hours

Environment

Temp: -209 °C

Axial Tilt: 29.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 44,045,163 km

• M1: 105,018 km (0.094 R)
• M2: 511,176 km (0.068 R)
• M3: 1,265,149 km (0.09 R)
• M4: 1,828,684 km (0.116 R)
• M5: 2,333,876 km (0.081 R)
• M6: 2,679,896 km (0.081 R)
• M7: 3,595,136 km (0.081 R)
• M8: 6,163,582 km (0.11 R)
• M9: 7,017,337 km (0.117 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.19 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 204.4

Radius: 13.5

Gravity: 1.12 G

Time & Orbit

Eccentricity (e): 0.228

Orbit Range: 3.23 AU - 5.15 AU

Year: 5920 Days

Day: 13.6 Hours

Environment

Temp: -225 °C

Axial Tilt: 39.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 44,045,163 km

• M1: 167,998 km (0.097 R)
• M2: 1,987,557 km (0.101 R)
• M3: 2,421,690 km (0.094 R)
• M4: 3,265,422 km (0.118 R)
• M5: 6,380,648 km (0.096 R)
• M6: 8,224,442 km (0.093 R)
• M7: 10,481,126 km (0.111 R)
• M8: 11,052,440 km (0.115 R)
• M9: 11,730,867 km (0.119 R)
• M10: 13,836,756 km (0.093 R)
• M11: 14,475,090 km (0.067 R)
• M12: 19,084,350 km (0.11 R)
• M13: 22,315,215 km (0.106 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.31 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 261.5

Radius: 12.2

Gravity: 1.76 G

Time & Orbit

Eccentricity (e): 0.243

Orbit Range: 3.26 AU - 5.36 AU

Year: 6176 Days

Day: 5.8 Hours

Environment

Temp: -218 °C

Axial Tilt: 47.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 44,045,163 km

• M1: 216,169 km (0.115 R)
• M2: 898,485 km (0.112 R)
• M3: 1,452,595 km (0.081 R)
• M4: 1,943,276 km (0.073 R)
• M5: 2,855,075 km (0.039 R)
• M6: 4,483,448 km (0.088 R)
• M7: 5,757,723 km (0.092 R)
• M8: 7,490,066 km (0.117 R)
• M9: 8,458,114 km (0.112 R)
• M10: 13,179,124 km (0.078 R)
• M11: 15,061,813 km (0.119 R)
• M12: 15,545,612 km (0.071 R)
• M13: 17,117,587 km (0.093 R)
• M14: 18,061,998 km (0.103 R)
• M15: 23,599,812 km (0.08 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.09 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 681.8

Radius: 14.8

Gravity: 3.11 G

Time & Orbit

Eccentricity (e): 0.189

Orbit Range: 4.13 AU - 6.05 AU

Year: 7927 Days

Day: 12.9 Hours

Environment

Temp: -224 °C

Axial Tilt: 23.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 44,045,163 km

• M1: 184,005 km (0.034 R)
• M2: 926,310 km (0.106 R)
• M3: 2,267,754 km (0.044 R)
• M4: 2,795,685 km (0.095 R)
• M5: 3,294,444 km (0.061 R)
• M6: 4,313,355 km (0.106 R)
• M7: 4,926,258 km (0.109 R)
• M8: 5,565,190 km (0.051 R)
• M9: 6,156,551 km (0.045 R)
• M10: 8,607,413 km (0.108 R)
• M11: 9,675,990 km (0.096 R)
• M12: 11,809,406 km (0.051 R)
• M13: 13,589,321 km (0.041 R)
• M14: 15,037,279 km (0.103 R)
• M15: 15,863,508 km (0.072 R)
• M16: 21,870,162 km (0.103 R)
• M17: 25,244,192 km (0.051 R)
• M18: 26,411,654 km (0.103 R)
• M19: 27,055,074 km (0.108 R)
• M20: 36,739,891 km (0.103 R)
• M21: 38,826,183 km (0.117 R)
• M22: 39,898,351 km (0.059 R)

Planet 8 - Ice Giant

Semi-Major Axis: 8.43 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 186.2

Radius: 7.8

Gravity: 3.06 G

Time & Orbit

Eccentricity (e): 0.191

Orbit Range: 6.82 AU - 10.04 AU

Year: 16895 Days

Day: 20.2 Hours

Environment

Temp: -242 °C

Axial Tilt: 1.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 44,045,163 km

• M1: 97,388 km (0.112 R)
• M2: 379,829 km (0.099 R)
• M3: 783,743 km (0.115 R)
• M4: 1,093,112 km (0.093 R)
• M5: 1,393,654 km (0.109 R)
• M6: 1,734,438 km (0.083 R)
• M7: 2,181,885 km (0.079 R)
• M8: 4,807,028 km (0.11 R)
• M9: 8,627,608 km (0.09 R)
• M10: 9,354,504 km (0.109 R)
• M11: 12,277,946 km (0.063 R)
• M12: 15,431,170 km (0.061 R)
• M13: 18,342,494 km (0.114 R)
• M14: 19,618,564 km (0.09 R)
• M15: 20,317,485 km (0.08 R)
• M16: 22,012,878 km (0.105 R)
• M17: 23,713,357 km (0.092 R)
• M18: 34,096,197 km (0.039 R)
• M19: 37,185,244 km (0.102 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: 296 - 13,069 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit