🌌 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: 501.5

Radius: 11

Gravity: 4.14 G

Time & Orbit

Eccentricity (e): 0.053

Orbit Range: 0.57 AU - 0.63 AU

Year: 327 Days

Day: 5 Hours

Environment

Temp: -142 °C

Axial Tilt: 8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 40,159,484 km

• M1: 137,032 km (0.116 R)
• M2: 564,134 km (0.102 R)
• M3: 1,103,135 km (0.11 R)
• M4: 1,464,264 km (0.114 R)
• M5: 1,941,631 km (0.103 R)
• M6: 2,310,838 km (0.071 R)
• M7: 3,522,731 km (0.106 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.64 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 432.7

Radius: 12.7

Gravity: 2.68 G

Time & Orbit

Eccentricity (e): 0.19

Orbit Range: 0.52 AU - 0.76 AU

Year: 360 Days

Day: 9.3 Hours

Environment

Temp: -160 °C

Axial Tilt: 18.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 40,159,484 km

• M1: 157,975 km (0.098 R)
• M2: 682,465 km (0.115 R)
• M3: 1,168,958 km (0.047 R)
• M4: 1,566,439 km (0.114 R)
• M5: 1,989,951 km (0.106 R)
• M6: 2,431,115 km (0.06 R)
• M7: 2,996,296 km (0.113 R)
• M8: 3,417,264 km (0.11 R)
• M9: 4,304,080 km (0.104 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 120.6

Radius: 12.1

Gravity: 0.82 G

Time & Orbit

Eccentricity (e): 0.212

Orbit Range: 0.63 AU - 0.97 AU

Year: 503 Days

Day: 13 Hours

Environment

Temp: -175 °C

Axial Tilt: 23.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 40,159,484 km

• M1: 150,495 km (0.071 R)
• M2: 679,025 km (0.118 R)
• M3: 1,728,155 km (0.092 R)
• M4: 2,135,809 km (0.102 R)
• M5: 2,795,535 km (0.048 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.86 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 409.5

Radius: 11.9

Gravity: 2.89 G

Time & Orbit

Eccentricity (e): 0.01

Orbit Range: 0.85 AU - 0.87 AU

Year: 561 Days

Day: 9.3 Hours

Environment

Temp: -158 °C

Axial Tilt: 31 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 40,159,484 km

• M1: 147,952 km (0.053 R)
• M2: 622,626 km (0.097 R)
• M3: 1,193,641 km (0.115 R)
• M4: 1,738,926 km (0.119 R)
• M5: 2,220,631 km (0.081 R)
• M6: 2,842,659 km (0.077 R)
• M7: 3,541,580 km (0.111 R)
• M8: 4,037,647 km (0.116 R)
• M9: 4,952,886 km (0.048 R)
• M10: 5,346,179 km (0.056 R)
• M11: 5,777,320 km (0.066 R)

Planet 5 - Gas Giant

Semi-Major Axis: 0.94 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 286.9

Radius: 10.8

Gravity: 2.46 G

Time & Orbit

Eccentricity (e): 0.049

Orbit Range: 0.89 AU - 0.99 AU

Year: 641 Days

Day: 9.6 Hours

Environment

Temp: -174 °C

Axial Tilt: 20.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 40,159,484 km

• M1: 134,339 km (0.087 R)
• M2: 487,839 km (0.108 R)
• M3: 1,211,444 km (0.086 R)
• M4: 1,805,796 km (0.115 R)
• M5: 2,509,504 km (0.06 R)
• M6: 3,016,043 km (0.111 R)
• M7: 3,493,559 km (0.051 R)
• M8: 3,878,026 km (0.116 R)
• M9: 4,688,547 km (0.077 R)
• M10: 5,204,809 km (0.088 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.22 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 651.1

Radius: 13.5

Gravity: 3.57 G

Time & Orbit

Eccentricity (e): 0.117

Orbit Range: 1.96 AU - 2.48 AU

Year: 2325 Days

Day: 7 Hours

Environment

Temp: -209 °C

Axial Tilt: 21.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 40,159,484 km

• M1: 167,849 km (0.086 R)
• M2: 673,639 km (0.115 R)
• M3: 1,571,376 km (0.062 R)
• M4: 2,120,101 km (0.111 R)
• M5: 2,693,210 km (0.119 R)
• M6: 3,830,304 km (0.107 R)
• M7: 4,519,052 km (0.071 R)
• M8: 5,242,807 km (0.12 R)
• M9: 5,693,845 km (0.033 R)
• M10: 6,512,594 km (0.073 R)
• M11: 7,119,961 km (0.092 R)
• M12: 7,644,750 km (0.111 R)
• M13: 8,416,526 km (0.103 R)
• M14: 9,138,186 km (0.08 R)
• M15: 9,794,322 km (0.098 R)
• M16: 11,317,528 km (0.12 R)
• M17: 12,780,744 km (0.076 R)
• M18: 15,302,516 km (0.088 R)
• M19: 15,883,255 km (0.106 R)
• M20: 17,399,878 km (0.116 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.99 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 656.2

Radius: 8.8

Gravity: 8.47 G

Time & Orbit

Eccentricity (e): 0.178

Orbit Range: 4.1 AU - 5.88 AU

Year: 7835 Days

Day: 12.5 Hours

Environment

Temp: -227 °C

Axial Tilt: 44.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 40,159,484 km

• M1: 113,096 km (0.059 R)
• M2: 392,844 km (0.046 R)
• M3: 805,285 km (0.072 R)
• M4: 1,385,276 km (0.046 R)
• M5: 2,577,721 km (0.105 R)
• M6: 2,992,705 km (0.103 R)
• M7: 3,271,556 km (0.118 R)
• M8: 3,982,445 km (0.074 R)
• M9: 5,328,975 km (0.071 R)
• M10: 6,173,755 km (0.081 R)
• M11: 6,993,252 km (0.088 R)
• M12: 9,066,529 km (0.032 R)
• M13: 12,758,155 km (0.105 R)
• M14: 13,438,526 km (0.081 R)
• M15: 13,905,571 km (0.108 R)
• M16: 19,115,317 km (0.049 R)
• M17: 22,353,662 km (0.086 R)
• M18: 24,017,190 km (0.114 R)
• M19: 26,939,884 km (0.043 R)
• M20: 31,397,751 km (0.092 R)
• M21: 33,056,941 km (0.095 R)
• M22: 36,662,100 km (0.105 R)
• M23: 38,617,793 km (0.079 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: 413 - 19,626 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit