🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.34 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.68 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 408.2

Radius: 10.1

Gravity: 4 G

Time & Orbit

Eccentricity (e): 0.157

Orbit Range: 0.57 AU - 0.79 AU

Year: 357 Days

Day: 14.5 Hours

Environment

Temp: -143 °C

Axial Tilt: 48.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 40,060,964 km

• M1: 125,662 km (0.061 R)
• M2: 517,459 km (0.073 R)
• M3: 866,920 km (0.1 R)
• M4: 1,396,347 km (0.06 R)
• M5: 1,763,011 km (0.114 R)
• M6: 2,265,959 km (0.118 R)
• M7: 2,605,247 km (0.077 R)
• M8: 3,067,205 km (0.103 R)
• M9: 3,517,196 km (0.053 R)
• M10: 4,206,094 km (0.031 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 153.1

Radius: 12.8

Gravity: 0.93 G

Time & Orbit

Eccentricity (e): 0.028

Orbit Range: 0.68 AU - 0.72 AU

Year: 372 Days

Day: 12.9 Hours

Environment

Temp: -130 °C

Axial Tilt: 44.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 40,060,964 km

• M1: 159,172 km (0.115 R)
• M2: 698,024 km (0.103 R)
• M3: 1,217,128 km (0.082 R)
• M4: 1,645,577 km (0.087 R)
• M5: 2,385,488 km (0.117 R)
• M6: 2,983,131 km (0.114 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.77 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 496.7

Radius: 8.4

Gravity: 7.04 G

Time & Orbit

Eccentricity (e): 0.222

Orbit Range: 0.6 AU - 0.94 AU

Year: 430 Days

Day: 8.2 Hours

Environment

Temp: -152 °C

Axial Tilt: 6.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 40,060,964 km

• M1: 126,410 km (0.053 R)
• M2: 393,143 km (0.102 R)
• M3: 706,252 km (0.102 R)
• M4: 1,184,217 km (0.063 R)
• M5: 1,613,413 km (0.085 R)
• M6: 2,143,588 km (0.112 R)
• M7: 2,745,570 km (0.029 R)
• M8: 3,669,187 km (0.088 R)
• M9: 4,350,306 km (0.1 R)
• M10: 4,642,620 km (0.099 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.05 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 362.5

Radius: 8.7

Gravity: 4.79 G

Time & Orbit

Eccentricity (e): 0.104

Orbit Range: 0.94 AU - 1.16 AU

Year: 684 Days

Day: 10.5 Hours

Environment

Temp: -171 °C

Axial Tilt: 38.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 40,060,964 km

• M1: 108,159 km (0.092 R)
• M2: 677,678 km (0.048 R)
• M3: 1,186,610 km (0.083 R)
• M4: 1,492,538 km (0.06 R)
• M5: 3,701,949 km (0.079 R)
• M6: 5,138,836 km (0.107 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.68 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 184.2

Radius: 12.6

Gravity: 1.16 G

Time & Orbit

Eccentricity (e): 0.215

Orbit Range: 1.32 AU - 2.04 AU

Year: 1385 Days

Day: 9.3 Hours

Environment

Temp: -192 °C

Axial Tilt: 1.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 40,060,964 km

• M1: 156,629 km (0.051 R)
• M2: 745,745 km (0.078 R)
• M3: 1,379,741 km (0.1 R)
• M4: 2,102,149 km (0.115 R)
• M5: 2,556,328 km (0.118 R)
• M6: 3,779,291 km (0.059 R)
• M7: 4,192,331 km (0.032 R)
• M8: 4,767,983 km (0.088 R)
• M9: 5,960,877 km (0.118 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.9 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 543.1

Radius: 10.4

Gravity: 5.02 G

Time & Orbit

Eccentricity (e): 0.203

Orbit Range: 1.51 AU - 2.29 AU

Year: 1665 Days

Day: 12.1 Hours

Environment

Temp: -194 °C

Axial Tilt: 34.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 40,060,964 km

• M1: 129,402 km (0.097 R)
• M2: 484,847 km (0.104 R)
• M3: 830,567 km (0.046 R)
• M4: 1,545,645 km (0.118 R)
• M5: 1,893,460 km (0.078 R)
• M6: 2,305,902 km (0.106 R)
• M7: 2,724,028 km (0.107 R)
• M8: 3,345,008 km (0.092 R)
• M9: 3,714,366 km (0.117 R)
• M10: 4,040,190 km (0.084 R)
• M11: 5,281,403 km (0.081 R)
• M12: 6,247,955 km (0.098 R)
• M13: 7,354,979 km (0.072 R)
• M14: 7,983,290 km (0.12 R)
• M15: 9,191,892 km (0.104 R)
• M16: 9,921,181 km (0.096 R)
• M17: 10,450,907 km (0.076 R)
• M18: 10,860,656 km (0.061 R)
• M19: 12,455,220 km (0.086 R)
• M20: 13,308,526 km (0.082 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.48 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 391

Radius: 8.7

Gravity: 5.17 G

Time & Orbit

Eccentricity (e): 0.244

Orbit Range: 1.87 AU - 3.09 AU

Year: 2483 Days

Day: 5.6 Hours

Environment

Temp: -197 °C

Axial Tilt: 34.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 40,060,964 km

• M1: 108,159 km (0.078 R)
• M2: 388,805 km (0.108 R)
• M3: 726,746 km (0.1 R)
• M4: 998,416 km (0.078 R)
• M5: 1,811,929 km (0.041 R)
• M6: 2,226,615 km (0.047 R)
• M7: 3,183,592 km (0.098 R)
• M8: 5,122,381 km (0.076 R)
• M9: 5,505,052 km (0.096 R)
• M10: 6,795,483 km (0.118 R)
• M11: 10,030,836 km (0.116 R)
• M12: 11,031,945 km (0.073 R)
• M13: 12,575,646 km (0.096 R)
• M14: 13,441,369 km (0.088 R)
• M15: 15,153,666 km (0.095 R)

Planet 8 - Gas Giant

Semi-Major Axis: 2.51 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 745.2

Radius: 12.9

Gravity: 4.48 G

Time & Orbit

Eccentricity (e): 0.184

Orbit Range: 2.05 AU - 2.97 AU

Year: 2528 Days

Day: 14.7 Hours

Environment

Temp: -194 °C

Axial Tilt: 59.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 40,060,964 km

• M1: 160,668 km (0.111 R)
• M2: 627,413 km (0.078 R)
• M3: 1,072,617 km (0.101 R)
• M4: 1,517,820 km (0.074 R)
• M5: 2,242,622 km (0.115 R)
• M6: 2,957,400 km (0.072 R)
• M7: 3,520,935 km (0.089 R)
• M8: 4,511,423 km (0.09 R)
• M9: 5,072,415 km (0.092 R)
• M10: 7,610,941 km (0.064 R)
• M11: 8,541,290 km (0.09 R)
• M12: 9,474,183 km (0.056 R)
• M13: 10,744,418 km (0.104 R)
• M14: 11,624,802 km (0.106 R)
• M15: 12,466,439 km (0.035 R)
• M16: 13,438,676 km (0.104 R)
• M17: 14,556,322 km (0.098 R)
• M18: 16,295,995 km (0.11 R)
• M19: 17,350,211 km (0.12 R)
• M20: 17,784,494 km (0.025 R)

Planet 9 - Ice Giant

Semi-Major Axis: 6.96 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 293.4

Radius: 7

Gravity: 5.99 G

Time & Orbit

Eccentricity (e): 0.16

Orbit Range: 5.85 AU - 8.07 AU

Year: 11675 Days

Day: 16.9 Hours

Environment

Temp: -233 °C

Axial Tilt: 13.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 40,060,964 km

• M1: 87,066 km (0.038 R)
• M2: 411,693 km (0.075 R)
• M3: 839,394 km (0.065 R)
• M4: 1,221,167 km (0.096 R)
• M5: 1,472,043 km (0.06 R)
• M6: 1,742,815 km (0.101 R)
• M7: 1,983,369 km (0.107 R)
• M8: 3,309,853 km (0.071 R)
• M9: 5,113,854 km (0.101 R)
• M10: 5,805,594 km (0.091 R)
• M11: 9,027,184 km (0.077 R)
• M12: 9,339,993 km (0.092 R)
• M13: 10,763,716 km (0.075 R)
• M14: 11,423,443 km (0.088 R)
• M15: 12,545,577 km (0.027 R)
• M16: 12,879,180 km (0.036 R)
• M17: 13,104,923 km (0.107 R)
• M18: 15,320,168 km (0.1 R)
• M19: 16,417,170 km (0.05 R)
• M20: 17,018,553 km (0.106 R)
• M21: 17,773,573 km (0.074 R)
• M22: 18,123,932 km (0.074 R)
• M23: 20,784,829 km (0.062 R)
• M24: 21,726,697 km (0.118 R)
• M25: 22,861,098 km (0.097 R)
• M26: 23,359,109 km (0.042 R)
• M27: 24,463,141 km (0.092 R)
• M28: 24,984,191 km (0.087 R)
• M29: 25,601,432 km (0.037 R)
• M30: 28,457,853 km (0.068 R)
• M31: 29,034,254 km (0.076 R)
• M32: 31,112,916 km (0.074 R)
• M33: 33,821,386 km (0.106 R)
• M34: 35,013,232 km (0.113 R)
• M35: 36,008,955 km (0.098 R)
• M36: 37,595,142 km (0.096 R)

Kuiper Belt

Range: 30 - 45 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 459 - 19,481 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit