🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.31 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.62 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.34

Radius: 1.12

Gravity: 1.07 G

Time & Orbit

Eccentricity (e): 0.223

Orbit Range: 0.48 AU - 0.76 AU

Year: 320 Days

Day: 38.8 Hours

Environment

Temp: -121 °C

Axial Tilt: 18.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 35,928,221 km

• M1: 46,525 km (0.075 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.92 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 656.4

Radius: 9.7

Gravity: 6.98 G

Time & Orbit

Eccentricity (e): 0.221

Orbit Range: 0.72 AU - 1.12 AU

Year: 579 Days

Day: 9.7 Hours

Environment

Temp: -156 °C

Axial Tilt: 29.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 35,928,221 km

• M1: 121,473 km (0.086 R)
• M2: 434,283 km (0.119 R)
• M3: 828,623 km (0.078 R)
• M4: 1,302,549 km (0.112 R)
• M5: 1,698,385 km (0.097 R)
• M6: 2,173,956 km (0.053 R)
• M7: 2,494,694 km (0.114 R)
• M8: 2,802,567 km (0.079 R)
• M9: 3,136,020 km (0.107 R)
• M10: 4,037,946 km (0.104 R)
• M11: 4,572,758 km (0.111 R)
• M12: 5,004,348 km (0.108 R)
• M13: 5,358,745 km (0.094 R)
• M14: 5,747,849 km (0.034 R)
• M15: 6,405,930 km (0.034 R)
• M16: 6,804,010 km (0.115 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.28 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 111.3

Radius: 10.7

Gravity: 0.97 G

Time & Orbit

Eccentricity (e): 0.079

Orbit Range: 1.18 AU - 1.38 AU

Year: 950 Days

Day: 8.4 Hours

Environment

Temp: -174 °C

Axial Tilt: 26.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 35,928,221 km

• M1: 133,142 km (0.119 R)
• M2: 588,668 km (0.119 R)
• M3: 1,007,392 km (0.106 R)
• M4: 1,344,885 km (0.117 R)
• M5: 1,681,330 km (0.09 R)
• M6: 2,157,650 km (0.107 R)
• M7: 3,476,954 km (0.117 R)
• M8: 4,176,174 km (0.096 R)
• M9: 4,659,226 km (0.097 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 839.3

Radius: 14.1

Gravity: 4.22 G

Time & Orbit

Eccentricity (e): 0.207

Orbit Range: 1.42 AU - 2.16 AU

Year: 1571 Days

Day: 14.3 Hours

Environment

Temp: -179 °C

Axial Tilt: 27.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 35,928,221 km

• M1: 175,329 km (0.053 R)
• M2: 619,335 km (0.066 R)
• M3: 1,112,859 km (0.048 R)
• M4: 1,583,942 km (0.029 R)
• M5: 2,110,078 km (0.026 R)
• M6: 2,781,024 km (0.113 R)
• M7: 3,459,750 km (0.114 R)
• M8: 4,856,994 km (0.119 R)
• M9: 5,592,567 km (0.076 R)
• M10: 6,083,397 km (0.1 R)
• M11: 6,965,726 km (0.091 R)
• M12: 8,047,617 km (0.055 R)
• M13: 8,492,522 km (0.108 R)
• M14: 9,893,805 km (0.105 R)
• M15: 10,649,872 km (0.038 R)
• M16: 11,742,685 km (0.086 R)
• M17: 13,896,445 km (0.08 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.99 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 938.2

Radius: 13.8

Gravity: 4.93 G

Time & Orbit

Eccentricity (e): 0.196

Orbit Range: 1.6 AU - 2.38 AU

Year: 1842 Days

Day: 6.3 Hours

Environment

Temp: -190 °C

Axial Tilt: 2.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 35,928,221 km

• M1: 171,738 km (0.111 R)
• M2: 773,571 km (0.079 R)
• M3: 1,614,909 km (0.118 R)
• M4: 2,166,327 km (0.065 R)
• M5: 2,640,103 km (0.12 R)
• M6: 4,813,311 km (0.09 R)
• M7: 5,727,055 km (0.095 R)
• M8: 7,838,779 km (0.092 R)
• M9: 8,582,280 km (0.102 R)
• M10: 9,103,629 km (0.12 R)
• M11: 11,327,551 km (0.049 R)
• M12: 13,196,926 km (0.085 R)
• M13: 14,385,630 km (0.079 R)
• M14: 15,982,737 km (0.088 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.51 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 976.4

Radius: 13.2

Gravity: 5.6 G

Time & Orbit

Eccentricity (e): 0.199

Orbit Range: 4.41 AU - 6.61 AU

Year: 8485 Days

Day: 9.3 Hours

Environment

Temp: -229 °C

Axial Tilt: 38.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 35,928,221 km

• M1: 164,109 km (0.118 R)
• M2: 797,506 km (0.027 R)
• M3: 1,757,925 km (0.112 R)
• M4: 2,565,454 km (0.103 R)
• M5: 3,889,096 km (0.097 R)
• M6: 4,672,989 km (0.052 R)
• M7: 6,259,624 km (0.078 R)
• M8: 8,180,610 km (0.041 R)
• M9: 8,808,472 km (0.109 R)
• M10: 10,211,700 km (0.097 R)
• M11: 10,834,027 km (0.072 R)
• M12: 11,758,991 km (0.117 R)
• M13: 12,794,956 km (0.085 R)
• M14: 16,130,690 km (0.117 R)
• M15: 17,998,868 km (0.102 R)
• M16: 22,419,335 km (0.117 R)
• M17: 24,833,845 km (0.092 R)
• M18: 26,440,227 km (0.091 R)
• M19: 27,615,019 km (0.093 R)
• M20: 29,546,178 km (0.115 R)
• M21: 38,920,429 km (0.115 R)
• M22: 40,568,549 km (0.092 R)
• M23: 42,262,745 km (0.116 R)
• M24: 45,652,483 km (0.082 R)
• M25: 46,071,058 km (0.066 R)
• M26: 46,774,467 km (0.105 R)
• M27: 47,199,923 km (0.115 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.05 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 302.7

Radius: 4.4

Gravity: 15.64 G

Time & Orbit

Eccentricity (e): 0.208

Orbit Range: 4.79 AU - 7.31 AU

Year: 9762 Days

Day: 17.9 Hours

Environment

Temp: -230 °C

Axial Tilt: 16.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 35,928,221 km

• M1: 54,753 km (0.052 R)
• M2: 270,922 km (0.083 R)
• M3: 520,301 km (0.103 R)
• M4: 1,286,242 km (0.081 R)
• M5: 1,502,411 km (0.057 R)
• M6: 1,686,866 km (0.033 R)
• M7: 1,916,349 km (0.108 R)
• M8: 2,248,905 km (0.082 R)
• M9: 2,437,847 km (0.088 R)
• M10: 3,389,439 km (0.102 R)
• M11: 4,198,165 km (0.091 R)
• M12: 5,672,153 km (0.076 R)
• M13: 6,220,579 km (0.08 R)
• M14: 6,559,418 km (0.097 R)
• M15: 7,422,448 km (0.048 R)
• M16: 7,649,388 km (0.116 R)
• M17: 9,283,445 km (0.113 R)
• M18: 9,502,906 km (0.071 R)
• M19: 10,135,555 km (0.091 R)
• M20: 11,235,249 km (0.083 R)
• M21: 13,112,403 km (0.095 R)
• M22: 13,277,709 km (0.074 R)
• M23: 14,415,400 km (0.09 R)
• M24: 15,989,619 km (0.109 R)
• M25: 17,078,542 km (0.097 R)
• M26: 17,341,834 km (0.074 R)
• M27: 18,284,600 km (0.088 R)
• M28: 22,007,941 km (0.077 R)
• M29: 22,163,373 km (0.119 R)
• M30: 22,398,092 km (0.093 R)
• M31: 33,100,174 km (0.108 R)
• M32: 34,862,737 km (0.062 R)
• M33: 35,392,762 km (0.093 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: 550 - 14,155 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit