🌌 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: 0.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 72.3

Radius: 14.1

Gravity: 0.36 G

Time & Orbit

Eccentricity (e): 0.229

Orbit Range: 0.54 AU - 0.86 AU

Year: 384 Days

Day: 11.3 Hours

Environment

Temp: -147 °C

Axial Tilt: 13.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 14,576,738 km

• M1: 175,329 km (0.063 R)
• M2: 729,140 km (0.105 R)
• M3: 1,277,117 km (0.084 R)
• M4: 1,916,050 km (0.114 R)
• M5: 2,507,859 km (0.038 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.96 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 945.1

Radius: 8

Gravity: 14.77 G

Time & Orbit

Eccentricity (e): 0.171

Orbit Range: 0.8 AU - 1.12 AU

Year: 617 Days

Day: 9.5 Hours

Environment

Temp: -150 °C

Axial Tilt: 37.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 14,576,738 km

• M1: 108,758 km (0.091 R)
• M2: 382,073 km (0.103 R)
• M3: 650,452 km (0.055 R)
• M4: 932,593 km (0.118 R)
• M5: 1,353,113 km (0.101 R)
• M6: 1,816,268 km (0.09 R)
• M7: 2,158,099 km (0.068 R)
• M8: 2,553,486 km (0.12 R)
• M9: 2,851,335 km (0.08 R)
• M10: 3,134,225 km (0.106 R)
• M11: 3,614,584 km (0.117 R)
• M12: 4,773,070 km (0.087 R)
• M13: 5,191,345 km (0.118 R)
• M14: 6,262,765 km (0.116 R)
• M15: 8,063,774 km (0.115 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.27 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 391.1

Radius: 8.2

Gravity: 5.82 G

Time & Orbit

Eccentricity (e): 0.127

Orbit Range: 1.11 AU - 1.43 AU

Year: 939 Days

Day: 12.6 Hours

Environment

Temp: -178 °C

Axial Tilt: 1.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 14,576,738 km

• M1: 102,175 km (0.11 R)
• M2: 375,341 km (0.039 R)
• M3: 816,804 km (0.041 R)
• M4: 1,249,292 km (0.103 R)
• M5: 1,709,455 km (0.065 R)
• M6: 2,101,551 km (0.113 R)
• M7: 2,585,799 km (0.119 R)
• M8: 5,334,211 km (0.092 R)
• M9: 6,296,275 km (0.114 R)
• M10: 7,301,722 km (0.078 R)
• M11: 7,667,489 km (0.044 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.28 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 520.1

Radius: 12.1

Gravity: 3.55 G

Time & Orbit

Eccentricity (e): 0.173

Orbit Range: 1.06 AU - 1.5 AU

Year: 950 Days

Day: 7.1 Hours

Environment

Temp: -166 °C

Axial Tilt: 11.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 14,576,738 km

• M1: 168,746 km (0.084 R)
• M2: 902,823 km (0.058 R)
• M3: 1,722,919 km (0.113 R)
• M4: 2,143,139 km (0.062 R)
• M5: 2,620,805 km (0.11 R)
• M6: 3,104,754 km (0.112 R)
• M7: 4,366,911 km (0.04 R)
• M8: 6,743,274 km (0.087 R)
• M9: 7,237,096 km (0.062 R)
• M10: 7,682,748 km (0.056 R)
• M11: 9,104,377 km (0.088 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.31 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 203.3

Radius: 10.3

Gravity: 1.92 G

Time & Orbit

Eccentricity (e): 0.216

Orbit Range: 1.03 AU - 1.59 AU

Year: 984 Days

Day: 9.5 Hours

Environment

Temp: -163 °C

Axial Tilt: 7.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 14,576,738 km

• M1: 129,402 km (0.065 R)
• M2: 472,280 km (0.091 R)
• M3: 844,480 km (0.104 R)
• M4: 2,220,780 km (0.065 R)
• M5: 3,144,398 km (0.08 R)
• M6: 4,379,926 km (0.086 R)
• M7: 5,487,699 km (0.071 R)
• M8: 5,841,348 km (0.081 R)
• M9: 6,477,588 km (0.088 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.54 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 148.8

Radius: 11.2

Gravity: 1.19 G

Time & Orbit

Eccentricity (e): 0.042

Orbit Range: 1.48 AU - 1.6 AU

Year: 1254 Days

Day: 6.1 Hours

Environment

Temp: -177 °C

Axial Tilt: 12.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 14,576,738 km

• M1: 168,298 km (0.091 R)
• M2: 549,623 km (0.09 R)
• M3: 1,003,054 km (0.113 R)
• M4: 1,859,202 km (0.08 R)
• M5: 3,222,039 km (0.081 R)
• M6: 3,929,038 km (0.062 R)
• M7: 4,532,516 km (0.103 R)
• M8: 5,029,032 km (0.114 R)
• M9: 6,500,177 km (0.095 R)
• M10: 6,903,942 km (0.118 R)

Planet 7 - Gas Giant

Semi-Major Axis: 1.56 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 600.3

Radius: 9.9

Gravity: 6.12 G

Time & Orbit

Eccentricity (e): 0.108

Orbit Range: 1.39 AU - 1.73 AU

Year: 1278 Days

Day: 8.3 Hours

Environment

Temp: -184 °C

Axial Tilt: 9.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 14,576,738 km

• M1: 125,064 km (0.12 R)
• M2: 575,802 km (0.093 R)
• M3: 994,676 km (0.106 R)
• M4: 1,511,387 km (0.099 R)
• M5: 2,300,965 km (0.027 R)
• M6: 2,623,049 km (0.072 R)
• M7: 3,271,107 km (0.113 R)
• M8: 3,906,300 km (0.099 R)
• M9: 4,297,348 km (0.092 R)
• M10: 5,020,505 km (0.054 R)
• M11: 6,311,534 km (0.114 R)
• M12: 7,120,859 km (0.084 R)
• M13: 7,864,510 km (0.11 R)
• M14: 8,744,145 km (0.111 R)
• M15: 9,780,110 km (0.051 R)

Planet 8 - Gas Giant

Semi-Major Axis: 1.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 767.6

Radius: 12.5

Gravity: 4.91 G

Time & Orbit

Eccentricity (e): 0.205

Orbit Range: 1.43 AU - 2.17 AU

Year: 1584 Days

Day: 9.7 Hours

Environment

Temp: -178 °C

Axial Tilt: 12 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 14,576,738 km

• M1: 155,582 km (0.044 R)
• M2: 659,727 km (0.05 R)
• M3: 1,078,451 km (0.108 R)
• M4: 1,522,906 km (0.059 R)
• M5: 2,278,226 km (0.098 R)
• M6: 2,688,124 km (0.084 R)
• M7: 3,396,769 km (0.062 R)
• M8: 3,865,459 km (0.081 R)
• M9: 5,123,129 km (0.103 R)
• M10: 6,022,960 km (0.116 R)
• M11: 6,561,363 km (0.083 R)
• M12: 7,025,415 km (0.094 R)
• M13: 7,762,933 km (0.085 R)
• M14: 10,528,997 km (0.086 R)
• M15: 11,203,085 km (0.107 R)
• M16: 11,792,800 km (0.103 R)
• M17: 12,716,118 km (0.112 R)
• M18: 13,195,579 km (0.058 R)

Kuiper Belt

Range: 30 - 47 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 279 - 12,314 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit