🌌 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 - Terrestrial

Semi-Major Axis: 0.67 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.76

Radius: 1.25

Gravity: 1.13 G

Time & Orbit

Eccentricity (e): 0.205

Orbit Range: 0.53 AU - 0.81 AU

Year: 354 Days

Day: 18.8 Hours

Environment

Temp: -134 °C

Axial Tilt: 15 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 30,919,250 km

• M1: 58,493 km (0.071 R)
• M2: 238,908 km (0.116 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.78 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 870.3

Radius: 9.2

Gravity: 10.28 G

Time & Orbit

Eccentricity (e): 0.151

Orbit Range: 0.66 AU - 0.9 AU

Year: 445 Days

Day: 13.1 Hours

Environment

Temp: -150 °C

Axial Tilt: 25.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 30,919,250 km

• M1: 114,442 km (0.096 R)
• M2: 441,314 km (0.059 R)
• M3: 737,667 km (0.109 R)
• M4: 1,025,194 km (0.083 R)
• M5: 1,389,764 km (0.103 R)
• M6: 1,777,223 km (0.108 R)
• M7: 2,101,102 km (0.033 R)
• M8: 2,625,742 km (0.113 R)
• M9: 3,129,587 km (0.102 R)
• M10: 3,749,072 km (0.046 R)
• M11: 4,244,092 km (0.09 R)
• M12: 4,643,518 km (0.113 R)
• M13: 5,181,921 km (0.075 R)
• M14: 6,252,144 km (0.102 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.43 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 526.7

Radius: 10.3

Gravity: 4.96 G

Time & Orbit

Eccentricity (e): 0.053

Orbit Range: 2.3 AU - 2.56 AU

Year: 2446 Days

Day: 9.9 Hours

Environment

Temp: -201 °C

Axial Tilt: 33.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 30,919,250 km

• M1: 128,355 km (0.088 R)
• M2: 561,291 km (0.106 R)
• M3: 1,277,267 km (0.056 R)
• M4: 1,600,099 km (0.081 R)
• M5: 2,258,778 km (0.067 R)
• M6: 2,608,837 km (0.028 R)
• M7: 3,997,255 km (0.116 R)
• M8: 5,440,725 km (0.062 R)
• M9: 6,177,644 km (0.095 R)
• M10: 6,841,410 km (0.081 R)
• M11: 7,319,375 km (0.083 R)
• M12: 8,628,506 km (0.107 R)
• M13: 9,734,483 km (0.096 R)
• M14: 14,331,476 km (0.1 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.59 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 901.1

Radius: 8.3

Gravity: 13.08 G

Time & Orbit

Eccentricity (e): 0.127

Orbit Range: 2.26 AU - 2.92 AU

Year: 2691 Days

Day: 8.8 Hours

Environment

Temp: -204 °C

Axial Tilt: 19.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 30,919,250 km

• M1: 236,813 km (0.114 R)
• M2: 612,902 km (0.082 R)
• M3: 1,466,658 km (0.07 R)
• M4: 1,984,715 km (0.111 R)
• M5: 2,379,953 km (0.112 R)
• M6: 5,372,060 km (0.077 R)
• M7: 6,540,120 km (0.081 R)
• M8: 7,261,331 km (0.073 R)
• M9: 8,372,544 km (0.115 R)
• M10: 8,719,910 km (0.068 R)
• M11: 9,480,915 km (0.06 R)
• M12: 9,820,203 km (0.105 R)
• M13: 10,563,405 km (0.09 R)
• M14: 10,887,284 km (0.095 R)
• M15: 16,254,108 km (0.091 R)
• M16: 16,631,842 km (0.119 R)
• M17: 17,348,715 km (0.082 R)
• M18: 19,081,657 km (0.043 R)
• M19: 21,762,451 km (0.1 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.41 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 952.3

Radius: 10.2

Gravity: 9.15 G

Time & Orbit

Eccentricity (e): 0.177

Orbit Range: 2.81 AU - 4.01 AU

Year: 4066 Days

Day: 9 Hours

Environment

Temp: -210 °C

Axial Tilt: 15.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 30,919,250 km

• M1: 126,859 km (0.103 R)
• M2: 506,239 km (0.03 R)
• M3: 989,291 km (0.11 R)
• M4: 2,171,263 km (0.12 R)
• M5: 2,808,550 km (0.045 R)
• M6: 3,359,819 km (0.107 R)
• M7: 3,802,927 km (0.119 R)
• M8: 4,454,426 km (0.117 R)
• M9: 4,937,627 km (0.091 R)
• M10: 5,455,685 km (0.117 R)
• M11: 5,979,427 km (0.076 R)
• M12: 7,195,658 km (0.083 R)
• M13: 8,379,426 km (0.061 R)
• M14: 9,037,806 km (0.111 R)
• M15: 9,522,952 km (0.076 R)
• M16: 12,361,272 km (0.099 R)
• M17: 15,206,923 km (0.099 R)
• M18: 16,363,464 km (0.088 R)
• M19: 17,890,409 km (0.066 R)
• M20: 19,710,866 km (0.111 R)
• M21: 21,296,154 km (0.083 R)
• M22: 23,113,918 km (0.107 R)
• M23: 24,330,149 km (0.059 R)
• M24: 25,428,945 km (0.119 R)
• M25: 25,829,269 km (0.101 R)
• M26: 26,396,843 km (0.098 R)
• M27: 27,641,049 km (0.108 R)
• M28: 27,979,290 km (0.087 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.55 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 573.5

Radius: 11.9

Gravity: 4.05 G

Time & Orbit

Eccentricity (e): 0.161

Orbit Range: 2.98 AU - 4.12 AU

Year: 4319 Days

Day: 7.5 Hours

Environment

Temp: -199 °C

Axial Tilt: 26.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 30,919,250 km

• M1: 150,346 km (0.115 R)
• M2: 549,024 km (0.079 R)
• M3: 1,238,970 km (0.106 R)
• M4: 1,612,515 km (0.113 R)
• M5: 2,424,832 km (0.062 R)
• M6: 3,003,925 km (0.096 R)
• M7: 4,630,952 km (0.095 R)
• M8: 6,205,469 km (0.071 R)
• M9: 7,695,165 km (0.046 R)
• M10: 8,689,243 km (0.116 R)
• M11: 9,294,665 km (0.08 R)
• M12: 10,296,672 km (0.118 R)
• M13: 11,018,332 km (0.114 R)
• M14: 11,818,830 km (0.118 R)
• M15: 13,485,949 km (0.109 R)
• M16: 13,938,931 km (0.108 R)
• M17: 15,964,486 km (0.115 R)
• M18: 17,458,969 km (0.08 R)
• M19: 19,233,649 km (0.111 R)
• M20: 21,668,803 km (0.065 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.61 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 937.4

Radius: 13.5

Gravity: 5.14 G

Time & Orbit

Eccentricity (e): 0.125

Orbit Range: 3.16 AU - 4.06 AU

Year: 4429 Days

Day: 11.1 Hours

Environment

Temp: -215 °C

Axial Tilt: 19.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 30,919,250 km

• M1: 167,998 km (0.063 R)
• M2: 720,912 km (0.087 R)
• M3: 1,334,413 km (0.12 R)
• M4: 2,397,755 km (0.067 R)
• M5: 2,877,665 km (0.095 R)
• M6: 3,442,845 km (0.086 R)
• M7: 4,516,809 km (0.107 R)
• M8: 5,626,376 km (0.066 R)
• M9: 6,777,083 km (0.062 R)
• M10: 8,419,518 km (0.073 R)
• M11: 10,446,719 km (0.103 R)
• M12: 11,550,452 km (0.098 R)
• M13: 12,328,361 km (0.077 R)
• M14: 12,985,993 km (0.105 R)
• M15: 14,152,258 km (0.063 R)
• M16: 14,593,272 km (0.1 R)
• M17: 16,269,516 km (0.087 R)
• M18: 17,751,134 km (0.045 R)
• M19: 19,591,337 km (0.102 R)
• M20: 24,191,771 km (0.111 R)
• M21: 30,096,399 km (0.042 R)

Kuiper Belt

Range: 30 - 59 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 300 - 11,531 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit