🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.33 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.65 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 489

Radius: 12.2

Gravity: 3.29 G

Time & Orbit

Eccentricity (e): 0.178

Orbit Range: 0.53 AU - 0.77 AU

Year: 362 Days

Day: 11.5 Hours

Environment

Temp: -156 °C

Axial Tilt: 8.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 48,631,448 km

• M1: 151,692 km (0.055 R)
• M2: 551,268 km (0.109 R)
• M3: 1,092,364 km (0.083 R)
• M4: 1,521,410 km (0.056 R)
• M5: 2,102,897 km (0.036 R)
• M6: 2,624,246 km (0.114 R)
• M7: 3,116,722 km (0.102 R)
• M8: 4,038,843 km (0.061 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.55 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 310.7

Radius: 13.2

Gravity: 1.78 G

Time & Orbit

Eccentricity (e): 0.016

Orbit Range: 1.53 AU - 1.57 AU

Year: 1332 Days

Day: 10.1 Hours

Environment

Temp: -186 °C

Axial Tilt: 9.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 48,631,448 km

• M1: 164,258 km (0.118 R)
• M2: 604,675 km (0.048 R)
• M3: 1,065,286 km (0.068 R)
• M4: 1,553,873 km (0.087 R)
• M5: 2,349,584 km (0.114 R)
• M6: 2,953,212 km (0.093 R)
• M7: 6,274,733 km (0.074 R)
• M8: 9,436,634 km (0.11 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.09 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 274.2

Radius: 8.8

Gravity: 3.54 G

Time & Orbit

Eccentricity (e): 0.193

Orbit Range: 1.69 AU - 2.49 AU

Year: 2086 Days

Day: 15 Hours

Environment

Temp: -203 °C

Axial Tilt: 2.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 48,631,448 km

• M1: 109,506 km (0.102 R)
• M2: 425,606 km (0.115 R)
• M3: 779,854 km (0.028 R)
• M4: 1,165,517 km (0.081 R)
• M5: 1,891,366 km (0.114 R)
• M6: 2,306,949 km (0.09 R)
• M7: 2,625,592 km (0.113 R)
• M8: 3,044,167 km (0.092 R)
• M9: 3,444,641 km (0.108 R)
• M10: 3,896,576 km (0.046 R)
• M11: 4,297,049 km (0.035 R)
• M12: 4,724,899 km (0.071 R)
• M13: 5,201,219 km (0.047 R)
• M14: 5,579,253 km (0.109 R)
• M15: 6,343,548 km (0.098 R)
• M16: 6,899,005 km (0.113 R)
• M17: 7,408,087 km (0.051 R)
• M18: 7,698,606 km (0.116 R)
• M19: 8,134,683 km (0.118 R)
• M20: 8,732,177 km (0.105 R)
• M21: 9,026,736 km (0.112 R)
• M22: 9,604,782 km (0.102 R)
• M23: 10,337,362 km (0.072 R)
• M24: 11,841,868 km (0.109 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.83 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 658.8

Radius: 12

Gravity: 4.58 G

Time & Orbit

Eccentricity (e): 0.058

Orbit Range: 2.67 AU - 2.99 AU

Year: 3286 Days

Day: 8.6 Hours

Environment

Temp: -209 °C

Axial Tilt: 25.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 48,631,448 km

• M1: 149,299 km (0.068 R)
• M2: 630,106 km (0.081 R)
• M3: 1,052,421 km (0.082 R)
• M4: 1,560,306 km (0.109 R)
• M5: 2,029,894 km (0.085 R)
• M6: 2,414,210 km (0.109 R)
• M7: 3,913,779 km (0.076 R)
• M8: 4,607,166 km (0.112 R)
• M9: 5,179,677 km (0.059 R)
• M10: 5,799,161 km (0.096 R)
• M11: 6,583,952 km (0.108 R)
• M12: 7,566,062 km (0.053 R)
• M13: 8,092,497 km (0.098 R)
• M14: 8,713,777 km (0.114 R)
• M15: 9,329,671 km (0.114 R)
• M16: 9,935,543 km (0.107 R)
• M17: 11,437,655 km (0.099 R)
• M18: 16,249,022 km (0.077 R)
• M19: 17,071,211 km (0.062 R)
• M20: 18,858,158 km (0.08 R)
• M21: 19,278,378 km (0.106 R)
• M22: 20,766,578 km (0.12 R)
• M23: 22,330,175 km (0.094 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.56 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 616.3

Radius: 14.5

Gravity: 2.93 G

Time & Orbit

Eccentricity (e): 0.007

Orbit Range: 4.53 AU - 4.59 AU

Year: 6721 Days

Day: 14.2 Hours

Environment

Temp: -214 °C

Axial Tilt: 48.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 48,631,448 km

• M1: 186,249 km (0.109 R)
• M2: 674,836 km (0.059 R)
• M3: 1,192,445 km (0.095 R)
• M4: 2,118,755 km (0.062 R)
• M5: 3,210,071 km (0.078 R)
• M6: 3,966,288 km (0.094 R)
• M7: 4,893,945 km (0.085 R)
• M8: 6,551,788 km (0.111 R)
• M9: 7,810,804 km (0.04 R)
• M10: 9,311,271 km (0.114 R)
• M11: 13,310,770 km (0.116 R)
• M12: 16,057,835 km (0.096 R)
• M13: 18,884,637 km (0.113 R)
• M14: 22,571,327 km (0.112 R)
• M15: 23,362,550 km (0.1 R)
• M16: 25,676,380 km (0.106 R)

Planet 6 - Ice Giant

Semi-Major Axis: 9.15 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 462.8

Radius: 3.9

Gravity: 30.43 G

Time & Orbit

Eccentricity (e): 0.016

Orbit Range: 9 AU - 9.3 AU

Year: 19105 Days

Day: 21.9 Hours

Environment

Temp: -231 °C

Axial Tilt: 15.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 48,631,448 km

• M1: 103,971 km (0.085 R)
• M2: 528,380 km (0.1 R)
• M3: 728,242 km (0.114 R)
• M4: 1,484,310 km (0.095 R)
• M5: 1,884,484 km (0.066 R)
• M6: 3,092,786 km (0.069 R)
• M7: 4,640,227 km (0.049 R)
• M8: 5,560,702 km (0.087 R)
• M9: 6,724,125 km (0.046 R)
• M10: 9,305,586 km (0.066 R)
• M11: 10,013,184 km (0.085 R)
• M12: 11,596,229 km (0.078 R)
• M13: 12,805,279 km (0.101 R)
• M14: 19,423,788 km (0.085 R)
• M15: 21,122,023 km (0.105 R)
• M16: 24,000,585 km (0.107 R)
• M17: 27,676,952 km (0.109 R)
• M18: 32,074,382 km (0.119 R)
• M19: 33,679,417 km (0.037 R)
• M20: 34,438,028 km (0.099 R)
• M21: 40,069,640 km (0.051 R)
• M22: 43,102,587 km (0.11 R)
• M23: 45,360,169 km (0.085 R)
• M24: 63,217,816 km (0.064 R)

Planet 7 - Ice Giant

Semi-Major Axis: 9.15 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 196

Radius: 3.6

Gravity: 15.12 G

Time & Orbit

Eccentricity (e): 0.032

Orbit Range: 8.86 AU - 9.44 AU

Year: 19105 Days

Day: 16.8 Hours

Environment

Temp: -242 °C

Axial Tilt: 31.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 48,631,448 km

• M1: 45,478 km (0.102 R)
• M2: 202,256 km (0.105 R)
• M3: 342,579 km (0.038 R)
• M4: 716,424 km (0.071 R)
• M5: 1,563,447 km (0.102 R)
• M6: 2,200,136 km (0.081 R)
• M7: 2,407,329 km (0.12 R)
• M8: 2,606,892 km (0.084 R)
• M9: 2,949,172 km (0.081 R)
• M10: 4,099,430 km (0.116 R)
• M11: 5,656,595 km (0.088 R)
• M12: 7,115,623 km (0.044 R)
• M13: 7,610,792 km (0.117 R)
• M14: 10,434,900 km (0.118 R)
• M15: 10,644,786 km (0.06 R)
• M16: 16,425,996 km (0.03 R)
• M17: 17,730,040 km (0.083 R)
• M18: 18,560,159 km (0.069 R)
• M19: 19,258,183 km (0.088 R)
• M20: 22,226,204 km (0.051 R)
• M21: 26,638,444 km (0.109 R)
• M22: 32,482,634 km (0.056 R)
• M23: 39,251,938 km (0.103 R)
• M24: 40,143,093 km (0.086 R)
• M25: 43,300,356 km (0.09 R)

Kuiper Belt

Range: 30 - 57 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 163 - 15,103 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit