🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.35 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 986

Radius: 10.2

Gravity: 9.48 G

Time & Orbit

Eccentricity (e): 0.041

Orbit Range: 0.66 AU - 0.72 AU

Year: 370 Days

Day: 15 Hours

Environment

Temp: -146 °C

Axial Tilt: 31.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 35,210,736 km

• M1: 126,859 km (0.097 R)
• M2: 526,435 km (0.104 R)
• M3: 921,074 km (0.114 R)
• M4: 1,423,274 km (0.074 R)
• M5: 1,780,065 km (0.098 R)
• M6: 2,119,054 km (0.096 R)
• M7: 2,530,298 km (0.12 R)
• M8: 3,038,632 km (0.119 R)
• M9: 3,539,785 km (0.076 R)
• M10: 4,218,810 km (0.11 R)
• M11: 4,753,173 km (0.096 R)
• M12: 5,413,797 km (0.062 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.39 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 405.1

Radius: 14

Gravity: 2.07 G

Time & Orbit

Eccentricity (e): 0.041

Orbit Range: 1.33 AU - 1.45 AU

Year: 1058 Days

Day: 7.4 Hours

Environment

Temp: -165 °C

Axial Tilt: 24.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 35,210,736 km

• M1: 174,132 km (0.1 R)
• M2: 1,132,157 km (0.086 R)
• M3: 1,732,493 km (0.037 R)
• M4: 3,150,082 km (0.116 R)
• M5: 3,664,549 km (0.105 R)
• M6: 4,542,539 km (0.107 R)
• M7: 5,112,507 km (0.119 R)
• M8: 6,502,122 km (0.108 R)
• M9: 8,279,943 km (0.111 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.85 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 544.3

Radius: 10

Gravity: 5.44 G

Time & Orbit

Eccentricity (e): 0.066

Orbit Range: 1.73 AU - 1.97 AU

Year: 1625 Days

Day: 7.6 Hours

Environment

Temp: -195 °C

Axial Tilt: 45.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 35,210,736 km

• M1: 124,465 km (0.041 R)
• M2: 529,726 km (0.071 R)
• M3: 1,202,168 km (0.065 R)
• M4: 1,609,075 km (0.107 R)
• M5: 2,732,555 km (0.045 R)
• M6: 3,170,278 km (0.116 R)
• M7: 4,080,432 km (0.066 R)
• M8: 4,712,782 km (0.084 R)
• M9: 6,125,883 km (0.085 R)
• M10: 6,580,511 km (0.051 R)
• M11: 7,109,190 km (0.091 R)
• M12: 7,503,979 km (0.03 R)
• M13: 7,941,104 km (0.075 R)
• M14: 8,987,242 km (0.082 R)
• M15: 9,702,170 km (0.047 R)
• M16: 10,827,894 km (0.058 R)
• M17: 11,673,421 km (0.098 R)
• M18: 12,261,191 km (0.077 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.99 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 518

Radius: 12.1

Gravity: 3.54 G

Time & Orbit

Eccentricity (e): 0.046

Orbit Range: 1.9 AU - 2.08 AU

Year: 1813 Days

Day: 6.8 Hours

Environment

Temp: -184 °C

Axial Tilt: 37.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 35,210,736 km

• M1: 150,944 km (0.098 R)
• M2: 574,755 km (0.11 R)
• M3: 1,035,965 km (0.099 R)
• M4: 1,559,707 km (0.118 R)
• M5: 2,198,640 km (0.056 R)
• M6: 2,808,401 km (0.064 R)
• M7: 3,643,157 km (0.116 R)
• M8: 4,020,742 km (0.078 R)
• M9: 5,987,505 km (0.114 R)
• M10: 6,566,000 km (0.097 R)
• M11: 7,779,239 km (0.12 R)
• M12: 8,176,720 km (0.108 R)
• M13: 8,768,081 km (0.112 R)
• M14: 9,806,140 km (0.072 R)
• M15: 10,304,301 km (0.096 R)
• M16: 11,208,022 km (0.094 R)
• M17: 12,545,427 km (0.098 R)
• M18: 13,133,047 km (0.066 R)
• M19: 13,575,558 km (0.105 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.93 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 868.7

Radius: 9.8

Gravity: 9.05 G

Time & Orbit

Eccentricity (e): 0.18

Orbit Range: 2.4 AU - 3.46 AU

Year: 3238 Days

Day: 6.4 Hours

Environment

Temp: -203 °C

Axial Tilt: 10.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 35,210,736 km

• M1: 121,922 km (0.062 R)
• M2: 488,736 km (0.097 R)
• M3: 988,842 km (0.052 R)
• M4: 1,622,239 km (0.113 R)
• M5: 2,003,863 km (0.071 R)
• M6: 3,389,289 km (0.115 R)
• M7: 3,705,390 km (0.034 R)
• M8: 4,238,856 km (0.048 R)
• M9: 5,756,975 km (0.04 R)
• M10: 6,745,966 km (0.044 R)
• M11: 7,057,429 km (0.072 R)
• M12: 7,776,546 km (0.103 R)
• M13: 8,761,648 km (0.096 R)
• M14: 9,907,119 km (0.108 R)
• M15: 10,392,265 km (0.043 R)
• M16: 11,898,267 km (0.066 R)
• M17: 15,714,658 km (0.04 R)
• M18: 21,325,625 km (0.092 R)
• M19: 22,825,045 km (0.072 R)

Asteroid Belt

Center: 3.38 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 6 - Gas Giant

Semi-Major Axis: 3.82 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 764.4

Radius: 8.2

Gravity: 11.37 G

Time & Orbit

Eccentricity (e): 0.112

Orbit Range: 3.39 AU - 4.25 AU

Year: 4821 Days

Day: 13.1 Hours

Environment

Temp: -219 °C

Axial Tilt: 31.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 35,210,736 km

• M1: 102,026 km (0.097 R)
• M2: 550,071 km (0.065 R)
• M3: 860,487 km (0.084 R)
• M4: 1,408,165 km (0.081 R)
• M5: 1,682,976 km (0.067 R)
• M6: 1,979,479 km (0.102 R)
• M7: 2,558,124 km (0.096 R)
• M8: 3,244,778 km (0.084 R)
• M9: 4,560,940 km (0.039 R)
• M10: 4,979,515 km (0.055 R)
• M11: 5,310,126 km (0.052 R)
• M12: 5,863,489 km (0.066 R)
• M13: 6,390,671 km (0.109 R)
• M14: 7,016,888 km (0.046 R)
• M15: 11,237,642 km (0.065 R)
• M16: 11,953,319 km (0.068 R)
• M17: 12,446,992 km (0.067 R)
• M18: 13,956,135 km (0.096 R)
• M19: 14,337,909 km (0.029 R)
• M20: 15,236,693 km (0.051 R)
• M21: 15,935,165 km (0.075 R)
• M22: 17,521,351 km (0.112 R)
• M23: 19,682,891 km (0.064 R)
• M24: 22,758,025 km (0.113 R)
• M25: 23,824,658 km (0.064 R)
• M26: 24,448,780 km (0.087 R)
• M27: 25,893,297 km (0.071 R)
• M28: 28,165,240 km (0.11 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.98 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 792.8

Radius: 13.4

Gravity: 4.42 G

Time & Orbit

Eccentricity (e): 0.234

Orbit Range: 3.05 AU - 4.91 AU

Year: 5127 Days

Day: 8.8 Hours

Environment

Temp: -206 °C

Axial Tilt: 16.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 35,210,736 km

• M1: 166,951 km (0.072 R)
• M2: 632,500 km (0.116 R)
• M3: 1,383,182 km (0.026 R)
• M4: 3,147,838 km (0.09 R)
• M5: 5,386,720 km (0.08 R)
• M6: 7,699,503 km (0.06 R)
• M7: 9,096,448 km (0.107 R)
• M8: 9,812,124 km (0.103 R)
• M9: 11,166,733 km (0.057 R)
• M10: 18,371,666 km (0.108 R)
• M11: 23,701,987 km (0.051 R)
• M12: 24,254,153 km (0.106 R)
• M13: 27,144,982 km (0.105 R)
• M14: 29,891,151 km (0.088 R)
• M15: 31,189,959 km (0.06 R)

Planet 8 - Ice Giant

Semi-Major Axis: 8.89 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 92.7

Radius: 7.9

Gravity: 1.49 G

Time & Orbit

Eccentricity (e): 0.149

Orbit Range: 7.57 AU - 10.21 AU

Year: 17115 Days

Day: 18.3 Hours

Environment

Temp: -222 °C

Axial Tilt: 27.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 35,210,736 km

• M1: 98,286 km (0.105 R)
• M2: 1,046,288 km (0.072 R)
• M3: 1,394,851 km (0.047 R)
• M4: 1,669,213 km (0.112 R)
• M5: 2,009,698 km (0.116 R)
• M6: 3,048,655 km (0.064 R)
• M7: 3,605,907 km (0.099 R)
• M8: 4,054,701 km (0.091 R)
• M9: 4,838,594 km (0.069 R)
• M10: 5,121,334 km (0.032 R)
• M11: 5,414,994 km (0.093 R)
• M12: 6,532,640 km (0.077 R)
• M13: 7,200,146 km (0.107 R)
• M14: 8,028,918 km (0.117 R)
• M15: 11,784,123 km (0.096 R)
• M16: 12,932,736 km (0.114 R)
• M17: 17,410,051 km (0.03 R)
• M18: 18,008,442 km (0.077 R)
• M19: 23,140,247 km (0.076 R)
• M20: 24,026,465 km (0.111 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: 433 - 12,437 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit