🌌 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: 0.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 301.3

Radius: 11.6

Gravity: 2.24 G

Time & Orbit

Eccentricity (e): 0.054

Orbit Range: 0.65 AU - 0.73 AU

Year: 396 Days

Day: 5.4 Hours

Environment

Temp: -157 °C

Axial Tilt: 9.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 20,736,844 km

• M1: 144,212 km (0.109 R)
• M2: 715,826 km (0.06 R)
• M3: 1,081,293 km (0.072 R)
• M4: 1,464,114 km (0.062 R)
• M5: 2,414,958 km (0.115 R)
• M6: 2,968,471 km (0.052 R)
• M7: 3,338,127 km (0.095 R)
• M8: 3,761,190 km (0.043 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.77 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 715.8

Radius: 12.5

Gravity: 4.58 G

Time & Orbit

Eccentricity (e): 0.129

Orbit Range: 0.67 AU - 0.87 AU

Year: 466 Days

Day: 5.7 Hours

Environment

Temp: -167 °C

Axial Tilt: 33.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 20,736,844 km

• M1: 155,432 km (0.101 R)
• M2: 566,826 km (0.11 R)
• M3: 990,188 km (0.084 R)
• M4: 1,443,769 km (0.097 R)
• M5: 2,336,868 km (0.077 R)
• M6: 2,790,299 km (0.05 R)
• M7: 3,314,490 km (0.11 R)
• M8: 3,824,769 km (0.097 R)
• M9: 5,425,616 km (0.069 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.47 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 756.8

Radius: 11.1

Gravity: 6.14 G

Time & Orbit

Eccentricity (e): 0.126

Orbit Range: 1.28 AU - 1.66 AU

Year: 1230 Days

Day: 15 Hours

Environment

Temp: -191 °C

Axial Tilt: 29.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 20,736,844 km

• M1: 143,315 km (0.098 R)
• M2: 499,058 km (0.106 R)
• M3: 902,075 km (0.111 R)
• M4: 1,272,031 km (0.104 R)
• M5: 2,067,592 km (0.091 R)
• M6: 3,405,147 km (0.081 R)
• M7: 4,277,153 km (0.084 R)
• M8: 5,189,700 km (0.051 R)
• M9: 5,563,694 km (0.117 R)
• M10: 6,113,167 km (0.116 R)
• M11: 10,860,207 km (0.075 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.63 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 980.7

Radius: 10.1

Gravity: 9.61 G

Time & Orbit

Eccentricity (e): 0.111

Orbit Range: 1.45 AU - 1.81 AU

Year: 1436 Days

Day: 5.7 Hours

Environment

Temp: -188 °C

Axial Tilt: 36.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 20,736,844 km

• M1: 125,662 km (0.117 R)
• M2: 584,778 km (0.066 R)
• M3: 1,160,580 km (0.07 R)
• M4: 1,602,792 km (0.089 R)
• M5: 2,203,427 km (0.07 R)
• M6: 3,593,341 km (0.081 R)
• M7: 4,031,363 km (0.112 R)
• M8: 4,684,358 km (0.102 R)
• M9: 5,121,932 km (0.067 R)
• M10: 6,298,968 km (0.104 R)
• M11: 6,806,853 km (0.1 R)
• M12: 7,507,719 km (0.096 R)
• M13: 8,049,712 km (0.026 R)
• M14: 8,465,744 km (0.116 R)
• M15: 8,958,519 km (0.117 R)
• M16: 9,405,517 km (0.048 R)
• M17: 11,233,603 km (0.06 R)
• M18: 11,678,358 km (0.111 R)
• M19: 12,019,591 km (0.047 R)
• M20: 12,484,989 km (0.055 R)
• M21: 14,080,900 km (0.093 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.45 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 125.9

Radius: 9.2

Gravity: 1.49 G

Time & Orbit

Eccentricity (e): 0.156

Orbit Range: 2.07 AU - 2.83 AU

Year: 2647 Days

Day: 13.4 Hours

Environment

Temp: -215 °C

Axial Tilt: 29.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 20,736,844 km

• M1: 114,592 km (0.102 R)
• M2: 436,227 km (0.084 R)
• M3: 842,236 km (0.085 R)
• M4: 1,161,927 km (0.071 R)
• M5: 1,479,673 km (0.107 R)
• M6: 2,445,177 km (0.1 R)
• M7: 2,921,796 km (0.096 R)
• M8: 3,489,221 km (0.103 R)
• M9: 3,961,651 km (0.077 R)
• M10: 4,299,892 km (0.116 R)
• M11: 4,824,831 km (0.1 R)
• M12: 5,191,495 km (0.113 R)
• M13: 6,919,949 km (0.082 R)
• M14: 7,362,010 km (0.115 R)
• M15: 8,302,831 km (0.074 R)
• M16: 10,677,698 km (0.106 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 387.7

Radius: 14.7

Gravity: 1.79 G

Time & Orbit

Eccentricity (e): 0.053

Orbit Range: 2.6 AU - 2.9 AU

Year: 3148 Days

Day: 13.6 Hours

Environment

Temp: -208 °C

Axial Tilt: 28.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 20,736,844 km

• M1: 182,809 km (0.033 R)
• M2: 678,127 km (0.063 R)
• M3: 1,211,294 km (0.095 R)
• M4: 1,783,506 km (0.106 R)
• M5: 3,155,767 km (0.112 R)
• M6: 3,800,833 km (0.067 R)
• M7: 4,305,876 km (0.09 R)
• M8: 5,034,417 km (0.074 R)
• M9: 5,919,588 km (0.068 R)
• M10: 8,443,304 km (0.088 R)
• M11: 9,344,332 km (0.111 R)
• M12: 9,871,963 km (0.057 R)
• M13: 10,682,186 km (0.092 R)
• M14: 11,142,498 km (0.104 R)
• M15: 12,226,933 km (0.085 R)
• M16: 12,988,237 km (0.083 R)
• M17: 18,130,364 km (0.072 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 530.3

Radius: 11

Gravity: 4.38 G

Time & Orbit

Eccentricity (e): 0.016

Orbit Range: 2.76 AU - 2.84 AU

Year: 3234 Days

Day: 5.9 Hours

Environment

Temp: -201 °C

Axial Tilt: 35 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 20,736,844 km

• M1: 137,181 km (0.118 R)
• M2: 486,492 km (0.12 R)
• M3: 877,092 km (0.106 R)
• M4: 1,231,789 km (0.114 R)
• M5: 1,867,729 km (0.11 R)
• M6: 2,575,178 km (0.105 R)
• M7: 3,273,650 km (0.109 R)
• M8: 3,715,862 km (0.108 R)
• M9: 5,022,599 km (0.062 R)
• M10: 5,511,634 km (0.107 R)
• M11: 6,388,128 km (0.084 R)
• M12: 7,324,461 km (0.077 R)
• M13: 8,249,724 km (0.099 R)
• M14: 8,689,093 km (0.058 R)
• M15: 9,073,111 km (0.1 R)
• M16: 10,882,946 km (0.114 R)
• M17: 12,346,462 km (0.098 R)
• M18: 13,377,191 km (0.074 R)
• M19: 15,609,341 km (0.076 R)
• M20: 18,362,391 km (0.111 R)
• M21: 20,613,539 km (0.078 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: 260 - 11,625 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit