🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.27 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.53 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.79

Radius: 1.87

Gravity: 1.37 G

Time & Orbit

Eccentricity (e): 0.231

Orbit Range: 0.41 AU - 0.65 AU

Year: 245 Days

Day: 14.4 Hours

Environment

Temp: -115 °C

Axial Tilt: 26 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Terrestrial

Semi-Major Axis: 0.54 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.19

Radius: 1.59

Gravity: 1.26 G

Time & Orbit

Eccentricity (e): 0.228

Orbit Range: 0.42 AU - 0.66 AU

Year: 252 Days

Day: 14 Hours

Environment

Temp: -126 °C

Axial Tilt: 19.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 26,053,631 km

• M1: 48,619 km (0.101 R)
• M2: 315,203 km (0.04 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.2 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 707.5

Radius: 13.8

Gravity: 3.72 G

Time & Orbit

Eccentricity (e): 0.022

Orbit Range: 1.17 AU - 1.23 AU

Year: 836 Days

Day: 10.5 Hours

Environment

Temp: -167 °C

Axial Tilt: 15 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 26,053,631 km

• M1: 171,738 km (0.11 R)
• M2: 647,160 km (0.101 R)
• M3: 1,517,371 km (0.112 R)
• M4: 2,019,721 km (0.109 R)
• M5: 2,488,261 km (0.109 R)
• M6: 3,004,823 km (0.117 R)
• M7: 4,370,502 km (0.119 R)
• M8: 6,075,618 km (0.107 R)
• M9: 7,483,783 km (0.101 R)
• M10: 8,239,552 km (0.03 R)
• M11: 9,045,734 km (0.061 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.51 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 924.4

Radius: 12.6

Gravity: 5.82 G

Time & Orbit

Eccentricity (e): 0.021

Orbit Range: 1.48 AU - 1.54 AU

Year: 1180 Days

Day: 13.1 Hours

Environment

Temp: -172 °C

Axial Tilt: 41.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 26,053,631 km

• M1: 156,629 km (0.046 R)
• M2: 592,707 km (0.083 R)
• M3: 1,342,192 km (0.112 R)
• M4: 1,739,225 km (0.07 R)
• M5: 2,308,146 km (0.106 R)
• M6: 3,409,635 km (0.119 R)
• M7: 4,566,475 km (0.05 R)
• M8: 5,339,597 km (0.056 R)
• M9: 6,503,917 km (0.109 R)
• M10: 7,070,295 km (0.108 R)
• M11: 9,765,899 km (0.064 R)
• M12: 11,571,694 km (0.119 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.66 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 548.1

Radius: 13.7

Gravity: 2.92 G

Time & Orbit

Eccentricity (e): 0.054

Orbit Range: 1.57 AU - 1.75 AU

Year: 1360 Days

Day: 14.6 Hours

Environment

Temp: -178 °C

Axial Tilt: 22.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 26,053,631 km

• M1: 170,392 km (0.097 R)
• M2: 811,718 km (0.085 R)
• M3: 1,382,135 km (0.095 R)
• M4: 2,027,051 km (0.103 R)
• M5: 2,528,054 km (0.12 R)
• M6: 3,399,612 km (0.078 R)
• M7: 4,737,765 km (0.045 R)
• M8: 5,382,831 km (0.078 R)
• M9: 6,425,378 km (0.033 R)
• M10: 7,217,349 km (0.042 R)
• M11: 7,833,543 km (0.111 R)
• M12: 8,428,942 km (0.081 R)
• M13: 9,319,349 km (0.092 R)
• M14: 10,176,395 km (0.042 R)
• M15: 10,754,890 km (0.097 R)
• M16: 11,287,309 km (0.047 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.19 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 750.3

Radius: 10

Gravity: 7.5 G

Time & Orbit

Eccentricity (e): 0.105

Orbit Range: 1.96 AU - 2.42 AU

Year: 2061 Days

Day: 12.2 Hours

Environment

Temp: -202 °C

Axial Tilt: 6.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 26,053,631 km

• M1: 124,316 km (0.096 R)
• M2: 468,690 km (0.055 R)
• M3: 936,183 km (0.116 R)
• M4: 1,642,585 km (0.084 R)
• M5: 1,958,386 km (0.097 R)
• M6: 2,289,296 km (0.092 R)
• M7: 2,894,719 km (0.098 R)
• M8: 3,603,514 km (0.102 R)
• M9: 3,932,928 km (0.046 R)
• M10: 6,070,083 km (0.077 R)
• M11: 6,727,267 km (0.101 R)
• M12: 7,143,747 km (0.069 R)
• M13: 7,816,040 km (0.069 R)
• M14: 10,231,298 km (0.119 R)
• M15: 11,432,568 km (0.072 R)
• M16: 11,747,023 km (0.072 R)
• M17: 12,393,286 km (0.092 R)
• M18: 14,023,304 km (0.101 R)
• M19: 14,983,124 km (0.107 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.14 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 878.9

Radius: 13.9

Gravity: 4.55 G

Time & Orbit

Eccentricity (e): 0.003

Orbit Range: 3.13 AU - 3.15 AU

Year: 3538 Days

Day: 9.2 Hours

Environment

Temp: -199 °C

Axial Tilt: 47.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 26,053,631 km

• M1: 174,132 km (0.078 R)
• M2: 627,713 km (0.036 R)
• M3: 1,452,147 km (0.117 R)
• M4: 2,076,718 km (0.07 R)
• M5: 2,626,789 km (0.079 R)
• M6: 3,162,200 km (0.101 R)
• M7: 3,728,577 km (0.111 R)
• M8: 4,645,313 km (0.098 R)
• M9: 6,105,239 km (0.095 R)
• M10: 6,613,572 km (0.068 R)
• M11: 7,445,636 km (0.066 R)
• M12: 8,132,439 km (0.098 R)
• M13: 9,357,796 km (0.04 R)
• M14: 10,035,474 km (0.068 R)
• M15: 11,355,526 km (0.078 R)
• M16: 12,788,224 km (0.108 R)
• M17: 15,132,124 km (0.107 R)
• M18: 17,451,639 km (0.101 R)
• M19: 18,665,177 km (0.107 R)
• M20: 21,124,865 km (0.099 R)
• M21: 21,600,437 km (0.073 R)
• M22: 24,086,903 km (0.104 R)
• M23: 24,681,106 km (0.11 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: 322 - 10,956 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit