🌌 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: 0.59 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 817

Radius: 14.7

Gravity: 3.78 G

Time & Orbit

Eccentricity (e): 0.216

Orbit Range: 0.46 AU - 0.72 AU

Year: 302 Days

Day: 9.9 Hours

Environment

Temp: -156 °C

Axial Tilt: 41.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 40,975,084 km

• M1: 182,809 km (0.057 R)
• M2: 772,823 km (0.084 R)
• M3: 1,298,360 km (0.056 R)
• M4: 1,839,904 km (0.088 R)
• M5: 2,393,416 km (0.081 R)
• M6: 2,997,642 km (0.026 R)
• M7: 4,216,117 km (0.054 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.6 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 955.8

Radius: 9.1

Gravity: 11.54 G

Time & Orbit

Eccentricity (e): 0.013

Orbit Range: 0.59 AU - 0.61 AU

Year: 310 Days

Day: 7.2 Hours

Environment

Temp: -158 °C

Axial Tilt: 27.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 40,975,084 km

• M1: 113,096 km (0.119 R)
• M2: 496,366 km (0.114 R)
• M3: 1,045,988 km (0.066 R)
• M4: 1,579,754 km (0.089 R)
• M5: 2,781,024 km (0.056 R)
• M6: 4,206,243 km (0.084 R)
• M7: 5,253,877 km (0.106 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.72 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 315.1

Radius: 10.7

Gravity: 2.75 G

Time & Orbit

Eccentricity (e): 0.182

Orbit Range: 0.59 AU - 0.85 AU

Year: 407 Days

Day: 11.7 Hours

Environment

Temp: -161 °C

Axial Tilt: 34.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 40,975,084 km

• M1: 133,740 km (0.045 R)
• M2: 494,870 km (0.113 R)
• M3: 1,241,363 km (0.039 R)
• M4: 1,583,793 km (0.073 R)
• M5: 2,064,899 km (0.103 R)
• M6: 2,686,927 km (0.1 R)
• M7: 3,077,527 km (0.084 R)
• M8: 3,706,586 km (0.114 R)
• M9: 4,094,494 km (0.091 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.09 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 146.5

Radius: 11.6

Gravity: 1.09 G

Time & Orbit

Eccentricity (e): 0.123

Orbit Range: 0.96 AU - 1.22 AU

Year: 759 Days

Day: 13.4 Hours

Environment

Temp: -171 °C

Axial Tilt: 34 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 40,975,084 km

• M1: 149,897 km (0.057 R)
• M2: 558,150 km (0.109 R)
• M3: 1,206,806 km (0.114 R)
• M4: 1,894,059 km (0.078 R)
• M5: 2,505,016 km (0.108 R)
• M6: 3,994,862 km (0.11 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 272.6

Radius: 8.6

Gravity: 3.69 G

Time & Orbit

Eccentricity (e): 0.035

Orbit Range: 1.06 AU - 1.14 AU

Year: 769 Days

Day: 13.7 Hours

Environment

Temp: -187 °C

Axial Tilt: 15.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 40,975,084 km

• M1: 106,962 km (0.084 R)
• M2: 461,958 km (0.106 R)
• M3: 817,852 km (0.039 R)
• M4: 1,667,418 km (0.118 R)
• M5: 2,648,032 km (0.112 R)
• M6: 3,305,515 km (0.087 R)
• M7: 3,653,629 km (0.111 R)
• M8: 4,438,718 km (0.087 R)
• M9: 4,942,265 km (0.08 R)
• M10: 5,466,306 km (0.113 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.46 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 153.5

Radius: 14.7

Gravity: 0.71 G

Time & Orbit

Eccentricity (e): 0.215

Orbit Range: 1.15 AU - 1.77 AU

Year: 1176 Days

Day: 13 Hours

Environment

Temp: -198 °C

Axial Tilt: 20.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 40,975,084 km

• M1: 182,809 km (0.093 R)
• M2: 1,545,645 km (0.108 R)
• M3: 2,184,727 km (0.102 R)
• M4: 2,809,298 km (0.086 R)
• M5: 3,707,484 km (0.107 R)
• M6: 4,378,131 km (0.115 R)
• M7: 5,261,956 km (0.109 R)
• M8: 5,818,759 km (0.085 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.5 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 34.4

Radius: 13.2

Gravity: 0.2 G

Time & Orbit

Eccentricity (e): 0.009

Orbit Range: 4.46 AU - 4.54 AU

Year: 6366 Days

Day: 7.4 Hours

Environment

Temp: -227 °C

Axial Tilt: 2.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 40,975,084 km

• M1: 164,109 km (0.109 R)
• M2: 599,588 km (0.093 R)
• M3: 1,054,815 km (0.113 R)
• M4: 1,848,282 km (0.099 R)
• M5: 2,325,798 km (0.104 R)
• M6: 3,426,240 km (0.097 R)
• M7: 5,637,596 km (0.108 R)
• M8: 6,805,207 km (0.113 R)
• M9: 11,632,730 km (0.071 R)
• M10: 12,513,563 km (0.092 R)

Planet 8 - Gas Giant

Semi-Major Axis: 4.67 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 944.8

Radius: 8.1

Gravity: 14.4 G

Time & Orbit

Eccentricity (e): 0.235

Orbit Range: 3.57 AU - 5.77 AU

Year: 6730 Days

Day: 10.8 Hours

Environment

Temp: -221 °C

Axial Tilt: 23.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 40,975,084 km

• M1: 103,821 km (0.118 R)
• M2: 394,639 km (0.069 R)
• M3: 651,798 km (0.051 R)
• M4: 1,204,412 km (0.098 R)
• M5: 2,525,362 km (0.087 R)
• M6: 2,836,226 km (0.054 R)
• M7: 3,282,925 km (0.066 R)
• M8: 4,237,060 km (0.061 R)
• M9: 5,058,203 km (0.096 R)
• M10: 8,117,180 km (0.092 R)
• M11: 9,562,146 km (0.104 R)
• M12: 9,984,311 km (0.104 R)
• M13: 11,745,378 km (0.086 R)
• M14: 14,301,706 km (0.096 R)
• M15: 17,001,948 km (0.071 R)
• M16: 17,344,527 km (0.12 R)
• M17: 18,761,219 km (0.091 R)
• M18: 22,146,469 km (0.095 R)
• M19: 31,106,035 km (0.118 R)
• M20: 31,825,451 km (0.116 R)
• M21: 32,978,252 km (0.049 R)
• M22: 38,453,684 km (0.087 R)
• M23: 39,761,020 km (0.047 R)
• M24: 40,486,569 km (0.034 R)

Kuiper Belt

Range: 30 - 48 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 211 - 12,320 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit