🌌 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: 724.1

Radius: 14.9

Gravity: 3.26 G

Time & Orbit

Eccentricity (e): 0.243

Orbit Range: 0.45 AU - 0.73 AU

Year: 307 Days

Day: 6.7 Hours

Environment

Temp: -142 °C

Axial Tilt: 42.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 51,300,866 km

• M1: 185,352 km (0.091 R)
• M2: 867,219 km (0.046 R)
• M3: 1,633,609 km (0.091 R)
• M4: 2,167,524 km (0.119 R)
• M5: 2,697,100 km (0.103 R)
• M6: 3,313,443 km (0.045 R)
• M7: 4,441,262 km (0.093 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.71 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 930.2

Radius: 13.1

Gravity: 5.42 G

Time & Orbit

Eccentricity (e): 0.196

Orbit Range: 0.57 AU - 0.85 AU

Year: 406 Days

Day: 13.7 Hours

Environment

Temp: -165 °C

Axial Tilt: 42.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 51,300,866 km

• M1: 163,211 km (0.068 R)
• M2: 628,311 km (0.092 R)
• M3: 1,066,633 km (0.11 R)
• M4: 1,704,069 km (0.097 R)
• M5: 2,385,039 km (0.115 R)
• M6: 2,982,682 km (0.07 R)
• M7: 3,992,019 km (0.09 R)
• M8: 4,554,358 km (0.112 R)
• M9: 5,413,648 km (0.039 R)
• M10: 5,821,302 km (0.061 R)
• M11: 6,249,451 km (0.04 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.98 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 300.7

Radius: 9.9

Gravity: 3.07 G

Time & Orbit

Eccentricity (e): 0.015

Orbit Range: 0.97 AU - 0.99 AU

Year: 658 Days

Day: 5.5 Hours

Environment

Temp: -165 °C

Axial Tilt: 19.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 51,300,866 km

• M1: 123,119 km (0.089 R)
• M2: 503,696 km (0.106 R)
• M3: 964,457 km (0.091 R)
• M4: 1,633,010 km (0.075 R)
• M5: 2,213,001 km (0.111 R)
• M6: 2,798,228 km (0.045 R)
• M7: 3,340,670 km (0.104 R)
• M8: 4,490,180 km (0.108 R)
• M9: 5,076,753 km (0.063 R)
• M10: 5,479,172 km (0.06 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.89 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 174.7

Radius: 14.8

Gravity: 0.8 G

Time & Orbit

Eccentricity (e): 0.196

Orbit Range: 1.52 AU - 2.26 AU

Year: 1762 Days

Day: 14.2 Hours

Environment

Temp: -206 °C

Axial Tilt: 9.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 51,300,866 km

• M1: 184,454 km (0.092 R)
• M2: 682,166 km (0.096 R)
• M3: 1,390,961 km (0.045 R)
• M4: 1,956,291 km (0.064 R)
• M5: 3,769,866 km (0.107 R)
• M6: 5,542,152 km (0.092 R)
• M7: 6,461,730 km (0.096 R)
• M8: 6,924,736 km (0.096 R)
• M9: 7,673,024 km (0.06 R)
• M10: 8,605,019 km (0.093 R)
• M11: 9,470,742 km (0.089 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.97 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 266.9

Radius: 14.8

Gravity: 1.22 G

Time & Orbit

Eccentricity (e): 0.112

Orbit Range: 1.75 AU - 2.19 AU

Year: 1875 Days

Day: 5.7 Hours

Environment

Temp: -209 °C

Axial Tilt: 19.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 51,300,866 km

• M1: 184,454 km (0.067 R)
• M2: 663,766 km (0.091 R)
• M3: 1,178,682 km (0.076 R)
• M4: 1,663,678 km (0.093 R)
• M5: 2,386,236 km (0.098 R)
• M6: 3,060,324 km (0.096 R)
• M7: 4,155,679 km (0.098 R)
• M8: 6,071,729 km (0.12 R)
• M9: 7,188,926 km (0.049 R)
• M10: 7,719,101 km (0.083 R)
• M11: 8,411,888 km (0.106 R)
• M12: 10,200,780 km (0.106 R)
• M13: 10,677,099 km (0.109 R)
• M14: 11,168,379 km (0.095 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.77 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 765.2

Radius: 9.2

Gravity: 9.04 G

Time & Orbit

Eccentricity (e): 0.065

Orbit Range: 2.59 AU - 2.95 AU

Year: 3127 Days

Day: 12.1 Hours

Environment

Temp: -219 °C

Axial Tilt: 10.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 51,300,866 km

• M1: 114,592 km (0.09 R)
• M2: 614,847 km (0.103 R)
• M3: 1,100,292 km (0.063 R)
• M4: 1,498,223 km (0.11 R)
• M5: 1,990,998 km (0.079 R)
• M6: 2,304,705 km (0.044 R)
• M7: 2,763,821 km (0.118 R)
• M8: 3,375,826 km (0.093 R)
• M9: 4,655,187 km (0.08 R)
• M10: 8,377,930 km (0.107 R)
• M11: 8,838,242 km (0.087 R)
• M12: 10,043,403 km (0.095 R)
• M13: 10,522,415 km (0.084 R)
• M14: 11,483,133 km (0.054 R)
• M15: 13,339,343 km (0.081 R)
• M16: 17,407,807 km (0.099 R)
• M17: 18,041,054 km (0.096 R)
• M18: 18,511,241 km (0.078 R)
• M19: 20,729,029 km (0.098 R)
• M20: 21,637,387 km (0.115 R)
• M21: 22,034,719 km (0.067 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.59 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 560.8

Radius: 5.6

Gravity: 17.88 G

Time & Orbit

Eccentricity (e): 0.116

Orbit Range: 5.83 AU - 7.35 AU

Year: 11474 Days

Day: 21.9 Hours

Environment

Temp: -231 °C

Axial Tilt: 11 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 51,300,866 km

• M1: 70,461 km (0.097 R)
• M2: 263,143 km (0.065 R)
• M3: 993,330 km (0.052 R)
• M4: 1,254,229 km (0.106 R)
• M5: 1,647,821 km (0.052 R)
• M6: 2,015,532 km (0.119 R)
• M7: 2,678,400 km (0.117 R)
• M8: 3,577,334 km (0.107 R)
• M9: 3,837,036 km (0.034 R)
• M10: 4,250,076 km (0.081 R)
• M11: 4,452,781 km (0.075 R)
• M12: 5,197,479 km (0.102 R)
• M13: 5,395,995 km (0.118 R)
• M14: 8,550,416 km (0.062 R)
• M15: 8,874,146 km (0.027 R)
• M16: 9,595,507 km (0.108 R)
• M17: 11,045,409 km (0.081 R)
• M18: 12,814,404 km (0.092 R)
• M19: 13,987,251 km (0.103 R)
• M20: 14,436,943 km (0.101 R)
• M21: 15,637,316 km (0.104 R)
• M22: 24,635,478 km (0.096 R)
• M23: 26,150,605 km (0.106 R)
• M24: 26,441,573 km (0.069 R)
• M25: 32,163,991 km (0.119 R)
• M26: 33,059,633 km (0.049 R)
• M27: 33,399,669 km (0.12 R)
• M28: 34,550,227 km (0.104 R)
• M29: 36,085,101 km (0.083 R)
• M30: 36,687,382 km (0.089 R)
• M31: 37,788,273 km (0.042 R)
• M32: 38,160,173 km (0.04 R)
• M33: 47,543,998 km (0.085 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.59 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 417.5

Radius: 6.6

Gravity: 9.58 G

Time & Orbit

Eccentricity (e): 0.082

Orbit Range: 6.97 AU - 8.21 AU

Year: 14183 Days

Day: 17 Hours

Environment

Temp: -227 °C

Axial Tilt: 39.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 51,300,866 km

• M1: 113,545 km (0.027 R)
• M2: 755,320 km (0.066 R)
• M3: 1,370,466 km (0.11 R)
• M4: 1,872,965 km (0.081 R)
• M5: 2,491,702 km (0.044 R)
• M6: 2,826,502 km (0.113 R)
• M7: 6,144,882 km (0.068 R)
• M8: 8,373,292 km (0.111 R)
• M9: 9,567,382 km (0.069 R)
• M10: 17,876,946 km (0.105 R)
• M11: 20,253,757 km (0.108 R)
• M12: 30,331,417 km (0.119 R)
• M13: 33,809,867 km (0.114 R)
• M14: 42,352,653 km (0.099 R)
• M15: 49,179,702 km (0.113 R)

Kuiper Belt

Range: 30 - 52 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 380 - 14,823 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit