🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.26 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.52 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 46.8

Radius: 9.3

Gravity: 0.54 G

Time & Orbit

Eccentricity (e): 0.214

Orbit Range: 0.41 AU - 0.63 AU

Year: 250 Days

Day: 6.8 Hours

Environment

Temp: -134 °C

Axial Tilt: 28.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (3)

Outer Limit: 22,139,798 km

• M1: 115,789 km (0.106 R)
• M2: 455,974 km (0.097 R)
• M3: 792,420 km (0.116 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.62 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 662.8

Radius: 12.5

Gravity: 4.24 G

Time & Orbit

Eccentricity (e): 0.013

Orbit Range: 0.61 AU - 0.63 AU

Year: 326 Days

Day: 14.7 Hours

Environment

Temp: -156 °C

Axial Tilt: 2.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 22,139,798 km

• M1: 155,432 km (0.091 R)
• M2: 616,792 km (0.101 R)
• M3: 1,150,856 km (0.109 R)
• M4: 1,982,770 km (0.064 R)
• M5: 2,488,411 km (0.069 R)
• M6: 3,332,592 km (0.1 R)
• M7: 3,751,017 km (0.092 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 88.9

Radius: 8.3

Gravity: 1.29 G

Time & Orbit

Eccentricity (e): 0.22

Orbit Range: 0.62 AU - 0.98 AU

Year: 477 Days

Day: 14.1 Hours

Environment

Temp: -162 °C

Axial Tilt: 26.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 22,139,798 km

• M1: 105,466 km (0.095 R)
• M2: 434,283 km (0.099 R)
• M3: 702,960 km (0.12 R)
• M4: 1,109,268 km (0.106 R)
• M5: 1,396,197 km (0.079 R)
• M6: 1,661,434 km (0.093 R)
• M7: 2,208,513 km (0.078 R)
• M8: 2,516,685 km (0.105 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.99 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 351.6

Radius: 11.4

Gravity: 2.71 G

Time & Orbit

Eccentricity (e): 0.229

Orbit Range: 0.76 AU - 1.22 AU

Year: 657 Days

Day: 5.6 Hours

Environment

Temp: -177 °C

Axial Tilt: 31.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 22,139,798 km

• M1: 141,819 km (0.057 R)
• M2: 506,838 km (0.117 R)
• M3: 873,502 km (0.079 R)
• M4: 1,376,899 km (0.079 R)
• M5: 1,742,516 km (0.084 R)
• M6: 2,656,559 km (0.118 R)
• M7: 3,315,238 km (0.071 R)
• M8: 3,786,920 km (0.059 R)
• M9: 5,327,629 km (0.053 R)
• M10: 5,836,262 km (0.069 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.27 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 729.1

Radius: 13.5

Gravity: 4 G

Time & Orbit

Eccentricity (e): 0.063

Orbit Range: 1.19 AU - 1.35 AU

Year: 954 Days

Day: 14.8 Hours

Environment

Temp: -176 °C

Axial Tilt: 23.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 22,139,798 km

• M1: 167,849 km (0.12 R)
• M2: 830,717 km (0.036 R)
• M3: 1,379,891 km (0.077 R)
• M4: 1,849,628 km (0.047 R)
• M5: 2,372,024 km (0.116 R)
• M6: 3,097,723 km (0.119 R)
• M7: 3,781,236 km (0.106 R)
• M8: 4,307,970 km (0.116 R)
• M9: 4,811,217 km (0.102 R)
• M10: 6,764,965 km (0.072 R)
• M11: 7,350,940 km (0.086 R)
• M12: 7,970,575 km (0.063 R)
• M13: 8,896,436 km (0.056 R)
• M14: 9,399,833 km (0.11 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 185.7

Radius: 14.1

Gravity: 0.93 G

Time & Orbit

Eccentricity (e): 0.027

Orbit Range: 1.76 AU - 1.86 AU

Year: 1624 Days

Day: 9.3 Hours

Environment

Temp: -197 °C

Axial Tilt: 19.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 22,139,798 km

• M1: 175,329 km (0.026 R)
• M2: 637,885 km (0.108 R)
• M3: 1,127,818 km (0.119 R)
• M4: 1,732,343 km (0.046 R)
• M5: 3,444,940 km (0.096 R)
• M6: 4,246,635 km (0.098 R)
• M7: 5,115,200 km (0.114 R)
• M8: 5,660,035 km (0.034 R)
• M9: 6,867,290 km (0.071 R)
• M10: 7,391,182 km (0.116 R)
• M11: 8,114,637 km (0.115 R)
• M12: 8,964,652 km (0.069 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 124.5

Radius: 13.2

Gravity: 0.71 G

Time & Orbit

Eccentricity (e): 0.173

Orbit Range: 2.22 AU - 3.16 AU

Year: 2942 Days

Day: 9.2 Hours

Environment

Temp: -214 °C

Axial Tilt: 39.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 22,139,798 km

• M1: 170,691 km (0.107 R)
• M2: 654,790 km (0.065 R)
• M3: 1,280,109 km (0.103 R)
• M4: 2,211,356 km (0.112 R)
• M5: 2,735,846 km (0.053 R)
• M6: 3,357,724 km (0.068 R)
• M7: 3,938,613 km (0.042 R)
• M8: 4,494,369 km (0.075 R)
• M9: 4,964,555 km (0.11 R)
• M10: 6,343,997 km (0.087 R)
• M11: 8,543,684 km (0.09 R)
• M12: 9,509,637 km (0.032 R)
• M13: 10,710,759 km (0.036 R)
• M14: 11,416,711 km (0.112 R)
• M15: 11,904,251 km (0.074 R)

Planet 8 - Gas Giant

Semi-Major Axis: 3.05 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 159.2

Radius: 9.4

Gravity: 1.8 G

Time & Orbit

Eccentricity (e): 0.027

Orbit Range: 2.97 AU - 3.13 AU

Year: 3552 Days

Day: 13.3 Hours

Environment

Temp: -215 °C

Axial Tilt: 22.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 22,139,798 km

• M1: 117,734 km (0.082 R)
• M2: 504,893 km (0.096 R)
• M3: 1,462,020 km (0.105 R)
• M4: 1,831,527 km (0.053 R)
• M5: 3,544,572 km (0.113 R)
• M6: 4,237,659 km (0.07 R)
• M7: 4,997,317 km (0.035 R)
• M8: 5,987,206 km (0.108 R)
• M9: 6,863,850 km (0.102 R)
• M10: 7,346,901 km (0.05 R)
• M11: 7,795,096 km (0.116 R)
• M12: 11,167,331 km (0.111 R)
• M13: 12,219,154 km (0.096 R)
• M14: 13,541,898 km (0.084 R)

Planet 9 - Gas Giant

Semi-Major Axis: 5.13 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 324.1

Radius: 8.7

Gravity: 4.28 G

Time & Orbit

Eccentricity (e): 0.053

Orbit Range: 4.86 AU - 5.4 AU

Year: 7748 Days

Day: 8.7 Hours

Environment

Temp: -225 °C

Axial Tilt: 46.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 22,139,798 km

• M1: 119,379 km (0.063 R)
• M2: 407,355 km (0.116 R)
• M3: 835,055 km (0.053 R)
• M4: 1,156,541 km (0.06 R)
• M5: 1,501,215 km (0.034 R)
• M6: 1,956,591 km (0.092 R)
• M7: 2,782,969 km (0.11 R)
• M8: 5,360,989 km (0.067 R)
• M9: 6,266,655 km (0.113 R)
• M10: 6,557,174 km (0.094 R)
• M11: 9,013,272 km (0.047 R)
• M12: 9,510,086 km (0.091 R)
• M13: 16,795,802 km (0.072 R)
• M14: 17,169,348 km (0.103 R)
• M15: 17,612,307 km (0.031 R)
• M16: 18,786,052 km (0.079 R)
• M17: 23,075,771 km (0.118 R)
• M18: 25,284,135 km (0.111 R)
• M19: 25,857,543 km (0.114 R)
• M20: 30,854,112 km (0.116 R)

Planet 10 - Ice Giant

Semi-Major Axis: 6.19 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 64

Radius: 6.9

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.137

Orbit Range: 5.34 AU - 7.04 AU

Year: 10270 Days

Day: 21.5 Hours

Environment

Temp: -221 °C

Axial Tilt: 61 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 22,139,798 km

• M1: 86,168 km (0.113 R)
• M2: 1,977,235 km (0.092 R)
• M3: 2,204,624 km (0.105 R)
• M4: 3,350,544 km (0.07 R)
• M5: 3,958,808 km (0.119 R)
• M6: 4,455,922 km (0.066 R)
• M7: 5,418,584 km (0.109 R)
• M8: 10,232,794 km (0.103 R)
• M9: 11,462,338 km (0.051 R)
• M10: 12,559,788 km (0.106 R)
• M11: 17,035,906 km (0.06 R)
• M12: 18,054,967 km (0.097 R)
• M13: 19,597,770 km (0.064 R)
• M14: 22,073,764 km (0.086 R)

Kuiper Belt

Range: 30 - 47 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 356 - 15,206 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit