🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.41 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 865.3

Radius: 8.1

Gravity: 13.19 G

Time & Orbit

Eccentricity (e): 0.177

Orbit Range: 0.67 AU - 0.95 AU

Year: 471 Days

Day: 7.9 Hours

Environment

Temp: -149 °C

Axial Tilt: 15.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 25,898,040 km

• M1: 100,679 km (0.076 R)
• M2: 443,258 km (0.091 R)
• M3: 723,455 km (0.116 R)
• M4: 1,047,185 km (0.102 R)
• M5: 2,129,077 km (0.098 R)
• M6: 2,392,968 km (0.052 R)
• M7: 2,753,648 km (0.12 R)
• M8: 3,344,260 km (0.096 R)
• M9: 4,377,682 km (0.076 R)
• M10: 4,650,848 km (0.066 R)
• M11: 5,115,200 km (0.088 R)
• M12: 5,367,272 km (0.084 R)
• M13: 6,576,921 km (0.057 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.91 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 548.9

Radius: 12.3

Gravity: 3.63 G

Time & Orbit

Eccentricity (e): 0.087

Orbit Range: 0.83 AU - 0.99 AU

Year: 561 Days

Day: 10.4 Hours

Environment

Temp: -162 °C

Axial Tilt: 39.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 25,898,040 km

• M1: 153,039 km (0.086 R)
• M2: 554,410 km (0.08 R)
• M3: 958,474 km (0.06 R)
• M4: 1,395,299 km (0.11 R)
• M5: 1,845,739 km (0.072 R)
• M6: 2,337,018 km (0.108 R)
• M7: 2,959,195 km (0.106 R)
• M8: 3,413,225 km (0.087 R)
• M9: 4,259,949 km (0.086 R)
• M10: 4,748,685 km (0.074 R)
• M11: 5,821,900 km (0.075 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.12 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 417.1

Radius: 12

Gravity: 2.9 G

Time & Orbit

Eccentricity (e): 0.037

Orbit Range: 1.08 AU - 1.16 AU

Year: 765 Days

Day: 12.8 Hours

Environment

Temp: -159 °C

Axial Tilt: 37.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 25,898,040 km

• M1: 149,299 km (0.118 R)
• M2: 571,464 km (0.06 R)
• M3: 1,019,360 km (0.048 R)
• M4: 1,415,944 km (0.071 R)
• M5: 1,818,063 km (0.103 R)
• M6: 2,202,380 km (0.1 R)
• M7: 3,919,614 km (0.085 R)
• M8: 4,355,991 km (0.096 R)
• M9: 5,555,467 km (0.118 R)
• M10: 6,397,852 km (0.094 R)
• M11: 6,880,904 km (0.048 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.13 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 386.9

Radius: 11.1

Gravity: 3.14 G

Time & Orbit

Eccentricity (e): 0.24

Orbit Range: 0.86 AU - 1.4 AU

Year: 776 Days

Day: 9.2 Hours

Environment

Temp: -169 °C

Axial Tilt: 7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 25,898,040 km

• M1: 138,079 km (0.115 R)
• M2: 625,170 km (0.115 R)
• M3: 1,059,153 km (0.049 R)
• M4: 1,538,614 km (0.032 R)
• M5: 2,034,681 km (0.076 R)
• M6: 2,625,143 km (0.087 R)
• M7: 3,013,799 km (0.097 R)
• M8: 3,428,035 km (0.048 R)
• M9: 3,936,070 km (0.114 R)
• M10: 4,680,768 km (0.082 R)
• M11: 5,290,529 km (0.115 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.66 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 634.4

Radius: 11.4

Gravity: 4.88 G

Time & Orbit

Eccentricity (e): 0.157

Orbit Range: 1.4 AU - 1.92 AU

Year: 1381 Days

Day: 14 Hours

Environment

Temp: -181 °C

Axial Tilt: 8.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 25,898,040 km

• M1: 141,819 km (0.099 R)
• M2: 553,811 km (0.091 R)
• M3: 1,036,564 km (0.066 R)
• M4: 1,406,818 km (0.09 R)
• M5: 1,877,004 km (0.087 R)
• M6: 2,391,322 km (0.07 R)
• M7: 2,780,875 km (0.116 R)
• M8: 3,515,251 km (0.057 R)
• M9: 3,937,266 km (0.119 R)
• M10: 4,429,443 km (0.074 R)
• M11: 4,942,564 km (0.113 R)
• M12: 6,603,549 km (0.107 R)
• M13: 7,774,302 km (0.044 R)
• M14: 8,666,953 km (0.102 R)
• M15: 9,048,726 km (0.093 R)
• M16: 9,626,773 km (0.084 R)
• M17: 11,060,219 km (0.083 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.02 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 567.1

Radius: 10.5

Gravity: 5.14 G

Time & Orbit

Eccentricity (e): 0.225

Orbit Range: 2.34 AU - 3.7 AU

Year: 3389 Days

Day: 7.8 Hours

Environment

Temp: -202 °C

Axial Tilt: 34.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 25,898,040 km

• M1: 130,599 km (0.071 R)
• M2: 486,941 km (0.079 R)
• M3: 877,092 km (0.036 R)
• M4: 1,223,112 km (0.088 R)
• M5: 1,995,636 km (0.091 R)
• M6: 2,475,845 km (0.114 R)
• M7: 2,816,330 km (0.077 R)
• M8: 4,073,550 km (0.062 R)
• M9: 4,851,160 km (0.091 R)
• M10: 5,965,664 km (0.027 R)
• M11: 6,525,609 km (0.047 R)
• M12: 6,938,050 km (0.063 R)
• M13: 8,555,353 km (0.084 R)
• M14: 10,174,750 km (0.067 R)
• M15: 11,559,278 km (0.108 R)
• M16: 13,111,655 km (0.072 R)
• M17: 14,302,604 km (0.06 R)
• M18: 15,152,619 km (0.12 R)
• M19: 15,564,162 km (0.103 R)
• M20: 16,789,070 km (0.09 R)
• M21: 18,307,787 km (0.1 R)
• M22: 20,100,269 km (0.027 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.5 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 654.9

Radius: 9.9

Gravity: 6.68 G

Time & Orbit

Eccentricity (e): 0.13

Orbit Range: 3.05 AU - 3.96 AU

Year: 4228 Days

Day: 9.2 Hours

Environment

Temp: -205 °C

Axial Tilt: 26.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 25,898,040 km

• M1: 128,505 km (0.08 R)
• M2: 527,033 km (0.085 R)
• M3: 966,552 km (0.107 R)
• M4: 1,657,694 km (0.097 R)
• M5: 2,768,009 km (0.098 R)
• M6: 3,655,873 km (0.067 R)
• M7: 4,200,259 km (0.071 R)
• M8: 4,673,886 km (0.116 R)
• M9: 11,745,677 km (0.107 R)
• M10: 16,097,628 km (0.09 R)
• M11: 18,537,570 km (0.052 R)
• M12: 22,680,234 km (0.104 R)

Planet 8 - Gas Giant

Semi-Major Axis: 4.49 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 286.3

Radius: 8.8

Gravity: 3.7 G

Time & Orbit

Eccentricity (e): 0.233

Orbit Range: 3.44 AU - 5.54 AU

Year: 6143 Days

Day: 10.6 Hours

Environment

Temp: -204 °C

Axial Tilt: 29.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 25,898,040 km

• M1: 109,506 km (0.12 R)
• M2: 387,758 km (0.091 R)
• M3: 1,070,373 km (0.039 R)
• M4: 3,819,832 km (0.032 R)
• M5: 5,541,704 km (0.077 R)
• M6: 8,146,801 km (0.093 R)
• M7: 12,679,916 km (0.094 R)
• M8: 17,091,258 km (0.084 R)
• M9: 18,351,021 km (0.109 R)
• M10: 19,224,374 km (0.097 R)
• M11: 21,189,042 km (0.113 R)
• M12: 23,500,778 km (0.112 R)

Kuiper Belt

Range: 30 - 58 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 208 - 13,656 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit