🌌 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 - Terrestrial

Semi-Major Axis: 0.51 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.28

Radius: 0.6

Gravity: 0.78 G

Time & Orbit

Eccentricity (e): 0.02

Orbit Range: 0.5 AU - 0.52 AU

Year: 232 Days

Day: 41 Hours

Environment

Temp: -113 °C

Axial Tilt: 31.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 21,474,140 km

• M1: 50,115 km (0.112 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.62 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.46

Radius: 1.43

Gravity: 1.2 G

Time & Orbit

Eccentricity (e): 0.036

Orbit Range: 0.6 AU - 0.64 AU

Year: 310 Days

Day: 34.5 Hours

Environment

Temp: -134 °C

Axial Tilt: 31.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 21,474,140 km

• M1: 287,228 km (0.034 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.06 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 575.3

Radius: 10.3

Gravity: 5.42 G

Time & Orbit

Eccentricity (e): 0.211

Orbit Range: 0.84 AU - 1.28 AU

Year: 694 Days

Day: 14.2 Hours

Environment

Temp: -158 °C

Axial Tilt: 29.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 21,474,140 km

• M1: 128,505 km (0.105 R)
• M2: 511,475 km (0.086 R)
• M3: 907,610 km (0.108 R)
• M4: 1,233,285 km (0.119 R)
• M5: 1,824,047 km (0.099 R)
• M6: 2,376,213 km (0.109 R)
• M7: 2,703,533 km (0.098 R)
• M8: 3,158,310 km (0.072 R)
• M9: 3,582,719 km (0.069 R)
• M10: 4,421,365 km (0.067 R)
• M11: 4,987,593 km (0.117 R)
• M12: 6,032,235 km (0.034 R)
• M13: 6,364,492 km (0.076 R)
• M14: 7,087,349 km (0.061 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.64 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 258.1

Radius: 10.9

Gravity: 2.17 G

Time & Orbit

Eccentricity (e): 0.007

Orbit Range: 1.63 AU - 1.65 AU

Year: 1335 Days

Day: 13.5 Hours

Environment

Temp: -181 °C

Axial Tilt: 16.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 21,474,140 km

• M1: 158,424 km (0.069 R)
• M2: 594,203 km (0.118 R)
• M3: 1,708,557 km (0.108 R)
• M4: 2,731,956 km (0.096 R)
• M5: 3,100,715 km (0.068 R)
• M6: 4,976,224 km (0.072 R)
• M7: 6,587,243 km (0.108 R)
• M8: 7,677,961 km (0.079 R)
• M9: 8,342,475 km (0.098 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.85 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 279.1

Radius: 10.8

Gravity: 2.39 G

Time & Orbit

Eccentricity (e): 0.07

Orbit Range: 1.72 AU - 1.98 AU

Year: 1600 Days

Day: 11.2 Hours

Environment

Temp: -177 °C

Axial Tilt: 31.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 21,474,140 km

• M1: 134,339 km (0.102 R)
• M2: 616,642 km (0.047 R)
• M3: 1,108,071 km (0.04 R)
• M4: 1,817,016 km (0.119 R)
• M5: 2,257,581 km (0.03 R)
• M6: 2,646,237 km (0.116 R)
• M7: 3,327,954 km (0.099 R)
• M8: 3,960,903 km (0.111 R)
• M9: 4,890,953 km (0.03 R)
• M10: 5,855,410 km (0.084 R)
• M11: 6,305,700 km (0.084 R)
• M12: 8,449,886 km (0.113 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.34 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 636.2

Radius: 13.1

Gravity: 3.71 G

Time & Orbit

Eccentricity (e): 0.12

Orbit Range: 2.94 AU - 3.74 AU

Year: 3881 Days

Day: 6 Hours

Environment

Temp: -206 °C

Axial Tilt: 17.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 21,474,140 km

• M1: 164,109 km (0.053 R)
• M2: 797,506 km (0.069 R)
• M3: 1,466,508 km (0.097 R)
• M4: 2,047,247 km (0.12 R)
• M5: 2,600,609 km (0.059 R)
• M6: 4,320,686 km (0.098 R)
• M7: 4,837,995 km (0.099 R)
• M8: 5,556,065 km (0.091 R)
• M9: 6,373,617 km (0.1 R)
• M10: 7,597,777 km (0.06 R)
• M11: 8,143,210 km (0.113 R)
• M12: 8,788,127 km (0.081 R)
• M13: 9,938,385 km (0.086 R)
• M14: 10,508,502 km (0.096 R)
• M15: 11,580,820 km (0.119 R)
• M16: 13,446,754 km (0.062 R)
• M17: 14,297,517 km (0.087 R)
• M18: 14,972,204 km (0.072 R)
• M19: 15,613,679 km (0.119 R)
• M20: 16,951,683 km (0.107 R)
• M21: 17,766,692 km (0.077 R)
• M22: 19,100,058 km (0.07 R)
• M23: 21,090,757 km (0.118 R)
• M24: 24,003,726 km (0.059 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.89 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 130.3

Radius: 14.6

Gravity: 0.61 G

Time & Orbit

Eccentricity (e): 0.051

Orbit Range: 4.64 AU - 5.14 AU

Year: 6875 Days

Day: 13 Hours

Environment

Temp: -221 °C

Axial Tilt: 49.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 21,474,140 km

• M1: 181,612 km (0.09 R)
• M2: 1,003,802 km (0.098 R)
• M3: 1,513,930 km (0.112 R)
• M4: 2,096,165 km (0.087 R)
• M5: 4,104,068 km (0.049 R)
• M6: 5,062,242 km (0.058 R)
• M7: 5,685,168 km (0.082 R)
• M8: 6,415,056 km (0.117 R)
• M9: 7,738,249 km (0.085 R)
• M10: 8,362,970 km (0.064 R)
• M11: 8,915,136 km (0.105 R)
• M12: 9,602,538 km (0.104 R)
• M13: 12,756,809 km (0.091 R)
• M14: 21,156,280 km (0.064 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: 278 - 15,303 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit