🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.26 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.51 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 821.4

Radius: 12.1

Gravity: 5.61 G

Time & Orbit

Eccentricity (e): 0.007

Orbit Range: 0.51 AU - 0.51 AU

Year: 243 Days

Day: 11 Hours

Environment

Temp: -149 °C

Axial Tilt: 35.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 21,284,893 km

• M1: 158,574 km (0.067 R)
• M2: 709,991 km (0.088 R)
• M3: 1,151,604 km (0.112 R)
• M4: 1,720,675 km (0.082 R)
• M5: 2,135,958 km (0.096 R)
• M6: 2,753,050 km (0.041 R)
• M7: 3,486,079 km (0.109 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.38 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 862.4

Radius: 13.4

Gravity: 4.8 G

Time & Orbit

Eccentricity (e): 0.128

Orbit Range: 1.2 AU - 1.56 AU

Year: 1081 Days

Day: 7.9 Hours

Environment

Temp: -192 °C

Axial Tilt: 29.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 21,284,893 km

• M1: 166,652 km (0.091 R)
• M2: 676,033 km (0.112 R)
• M3: 2,156,753 km (0.078 R)
• M4: 2,680,195 km (0.092 R)
• M5: 3,405,596 km (0.104 R)
• M6: 4,172,285 km (0.105 R)
• M7: 4,954,382 km (0.07 R)
• M8: 6,691,962 km (0.081 R)
• M9: 7,557,236 km (0.103 R)
• M10: 8,949,842 km (0.111 R)
• M11: 10,539,469 km (0.103 R)
• M12: 11,031,197 km (0.116 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.56 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 664.6

Radius: 13.6

Gravity: 3.59 G

Time & Orbit

Eccentricity (e): 0.024

Orbit Range: 1.52 AU - 1.6 AU

Year: 1299 Days

Day: 14.2 Hours

Environment

Temp: -188 °C

Axial Tilt: 44.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 21,284,893 km

• M1: 169,195 km (0.097 R)
• M2: 624,422 km (0.099 R)
• M3: 1,110,315 km (0.118 R)
• M4: 1,538,614 km (0.073 R)
• M5: 1,996,982 km (0.097 R)
• M6: 2,463,129 km (0.102 R)
• M7: 3,420,256 km (0.047 R)
• M8: 4,181,560 km (0.103 R)
• M9: 5,053,117 km (0.103 R)
• M10: 5,931,556 km (0.114 R)
• M11: 6,739,384 km (0.119 R)
• M12: 10,299,365 km (0.117 R)
• M13: 10,789,447 km (0.09 R)
• M14: 11,295,088 km (0.096 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.92 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 882.6

Radius: 8.5

Gravity: 12.22 G

Time & Orbit

Eccentricity (e): 0.06

Orbit Range: 1.8 AU - 2.04 AU

Year: 1774 Days

Day: 12.3 Hours

Environment

Temp: -198 °C

Axial Tilt: 38.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 21,284,893 km

• M1: 105,915 km (0.096 R)
• M2: 547,528 km (0.111 R)
• M3: 948,002 km (0.11 R)
• M4: 1,698,385 km (0.076 R)
• M5: 2,213,001 km (0.113 R)
• M6: 3,167,885 km (0.118 R)
• M7: 3,693,272 km (0.087 R)
• M8: 4,062,181 km (0.037 R)
• M9: 5,527,791 km (0.111 R)
• M10: 6,418,796 km (0.092 R)
• M11: 7,316,832 km (0.074 R)
• M12: 8,673,236 km (0.115 R)
• M13: 9,160,476 km (0.063 R)
• M14: 10,549,492 km (0.045 R)
• M15: 11,447,379 km (0.109 R)
• M16: 11,875,677 km (0.112 R)
• M17: 12,354,839 km (0.084 R)
• M18: 13,652,750 km (0.066 R)
• M19: 14,134,456 km (0.083 R)
• M20: 14,537,023 km (0.085 R)
• M21: 15,271,399 km (0.102 R)
• M22: 15,553,092 km (0.102 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.57 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 363.2

Radius: 12.7

Gravity: 2.25 G

Time & Orbit

Eccentricity (e): 0.154

Orbit Range: 2.17 AU - 2.97 AU

Year: 2747 Days

Day: 14.2 Hours

Environment

Temp: -206 °C

Axial Tilt: 17.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 21,284,893 km

• M1: 158,125 km (0.109 R)
• M2: 570,566 km (0.048 R)
• M3: 1,151,156 km (0.107 R)
• M4: 1,657,395 km (0.055 R)
• M5: 3,342,615 km (0.059 R)
• M6: 4,374,840 km (0.055 R)
• M7: 5,632,659 km (0.107 R)
• M8: 6,118,254 km (0.114 R)
• M9: 6,631,823 km (0.113 R)
• M10: 7,257,890 km (0.099 R)
• M11: 7,804,671 km (0.09 R)
• M12: 8,255,558 km (0.108 R)
• M13: 8,980,659 km (0.098 R)
• M14: 10,486,212 km (0.107 R)
• M15: 11,337,275 km (0.09 R)
• M16: 11,956,011 km (0.047 R)
• M17: 13,177,029 km (0.115 R)
• M18: 15,023,815 km (0.074 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 597.8

Radius: 14.3

Gravity: 2.92 G

Time & Orbit

Eccentricity (e): 0.087

Orbit Range: 4.38 AU - 5.22 AU

Year: 7013 Days

Day: 10.1 Hours

Environment

Temp: -221 °C

Axial Tilt: 22.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 21,284,893 km

• M1: 177,872 km (0.109 R)
• M2: 675,135 km (0.089 R)
• M3: 1,239,269 km (0.113 R)
• M4: 3,098,621 km (0.087 R)
• M5: 4,009,373 km (0.065 R)
• M6: 4,978,468 km (0.043 R)
• M7: 7,343,909 km (0.072 R)
• M8: 9,217,024 km (0.083 R)
• M9: 9,742,561 km (0.116 R)
• M10: 10,854,074 km (0.045 R)
• M11: 14,002,211 km (0.076 R)
• M12: 15,600,365 km (0.082 R)
• M13: 16,348,504 km (0.065 R)
• M14: 19,870,337 km (0.066 R)
• M15: 20,527,521 km (0.073 R)
• M16: 23,869,687 km (0.06 R)
• M17: 26,406,119 km (0.089 R)
• M18: 27,469,311 km (0.102 R)
• M19: 28,560,777 km (0.12 R)
• M20: 30,636,746 km (0.115 R)
• M21: 33,833,503 km (0.095 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.27 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 426.3

Radius: 6.5

Gravity: 10.09 G

Time & Orbit

Eccentricity (e): 0.225

Orbit Range: 5.63 AU - 8.91 AU

Year: 13072 Days

Day: 22.9 Hours

Environment

Temp: -223 °C

Axial Tilt: 144 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 21,284,893 km

• M1: 145,858 km (0.117 R)
• M2: 539,600 km (0.073 R)
• M3: 781,649 km (0.065 R)
• M4: 1,223,411 km (0.062 R)
• M5: 3,183,443 km (0.1 R)
• M6: 4,472,677 km (0.096 R)
• M7: 5,516,421 km (0.056 R)
• M8: 7,189,225 km (0.07 R)
• M9: 8,890,452 km (0.108 R)
• M10: 10,897,158 km (0.102 R)
• M11: 11,948,532 km (0.078 R)
• M12: 16,056,788 km (0.1 R)
• M13: 16,477,906 km (0.117 R)
• M14: 22,033,971 km (0.073 R)
• M15: 23,170,765 km (0.082 R)
• M16: 23,618,213 km (0.076 R)
• M17: 25,751,179 km (0.113 R)
• M18: 27,507,458 km (0.119 R)
• M19: 30,289,380 km (0.098 R)
• M20: 31,474,644 km (0.05 R)
• M21: 35,333,222 km (0.08 R)
• M22: 37,375,682 km (0.066 R)
• M23: 37,991,127 km (0.08 R)
• M24: 46,334,500 km (0.115 R)
• M25: 47,474,136 km (0.052 R)
• M26: 47,906,325 km (0.099 R)

Planet 8 - Ice Giant

Semi-Major Axis: 8.13 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 25.1

Radius: 7.6

Gravity: 0.43 G

Time & Orbit

Eccentricity (e): 0.21

Orbit Range: 6.42 AU - 9.84 AU

Year: 15458 Days

Day: 23.8 Hours

Environment

Temp: -235 °C

Axial Tilt: 2.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 21,284,893 km

• M1: 94,845 km (0.088 R)
• M2: 394,789 km (0.091 R)
• M3: 644,019 km (0.061 R)
• M4: 3,125,848 km (0.105 R)
• M5: 4,763,795 km (0.108 R)
• M6: 5,940,831 km (0.091 R)
• M7: 7,177,556 km (0.067 R)
• M8: 10,189,111 km (0.118 R)
• M9: 10,463,025 km (0.102 R)
• M10: 14,882,445 km (0.038 R)
• M11: 17,360,085 km (0.03 R)
• M12: 21,094,796 km (0.061 R)

Kuiper Belt

Range: 30 - 56 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 492 - 19,807 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit