🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.4 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 396.1

Radius: 13.1

Gravity: 2.31 G

Time & Orbit

Eccentricity (e): 0.187

Orbit Range: 0.64 AU - 0.94 AU

Year: 485 Days

Day: 12.5 Hours

Environment

Temp: -172 °C

Axial Tilt: 21 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 48,640,603 km

• M1: 163,361 km (0.056 R)
• M2: 586,424 km (0.112 R)
• M3: 1,225,057 km (0.111 R)
• M4: 1,773,782 km (0.109 R)
• M5: 2,264,912 km (0.114 R)
• M6: 2,680,644 km (0.027 R)
• M7: 3,105,053 km (0.033 R)
• M8: 4,117,681 km (0.106 R)
• M9: 4,532,965 km (0.083 R)
• M10: 5,170,850 km (0.063 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.95 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 981.3

Radius: 12.2

Gravity: 6.59 G

Time & Orbit

Eccentricity (e): 0.125

Orbit Range: 0.83 AU - 1.07 AU

Year: 639 Days

Day: 12.6 Hours

Environment

Temp: -168 °C

Axial Tilt: 57.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 48,640,603 km

• M1: 151,692 km (0.084 R)
• M2: 557,701 km (0.077 R)
• M3: 1,084,285 km (0.064 R)
• M4: 1,610,271 km (0.118 R)
• M5: 2,213,600 km (0.052 R)
• M6: 2,975,950 km (0.046 R)
• M7: 3,562,673 km (0.036 R)
• M8: 4,178,867 km (0.041 R)
• M9: 4,796,557 km (0.108 R)
• M10: 5,739,771 km (0.115 R)
• M11: 6,462,628 km (0.088 R)
• M12: 7,313,242 km (0.057 R)
• M13: 7,872,738 km (0.069 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.06 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 595.9

Radius: 8.2

Gravity: 8.86 G

Time & Orbit

Eccentricity (e): 0.18

Orbit Range: 0.87 AU - 1.25 AU

Year: 753 Days

Day: 13.1 Hours

Environment

Temp: -179 °C

Axial Tilt: 37.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 48,640,603 km

• M1: 102,026 km (0.105 R)
• M2: 394,190 km (0.081 R)
• M3: 699,071 km (0.036 R)
• M4: 1,103,434 km (0.031 R)
• M5: 2,060,262 km (0.103 R)
• M6: 2,450,862 km (0.114 R)
• M7: 3,367,897 km (0.1 R)
• M8: 3,970,926 km (0.066 R)
• M9: 4,353,597 km (0.097 R)
• M10: 4,611,205 km (0.11 R)
• M11: 5,841,348 km (0.118 R)
• M12: 6,605,644 km (0.089 R)
• M13: 6,990,260 km (0.048 R)
• M14: 7,299,628 km (0.118 R)
• M15: 7,710,873 km (0.104 R)

Planet 4 - Ice Giant

Semi-Major Axis: 6.14 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 354.3

Radius: 5.1

Gravity: 13.62 G

Time & Orbit

Eccentricity (e): 0.09

Orbit Range: 5.59 AU - 6.69 AU

Year: 10502 Days

Day: 24.1 Hours

Environment

Temp: -226 °C

Axial Tilt: 25.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 48,640,603 km

• M1: 63,729 km (0.058 R)
• M2: 248,332 km (0.079 R)
• M3: 810,372 km (0.118 R)
• M4: 1,092,812 km (0.09 R)
• M5: 1,257,221 km (0.095 R)
• M6: 1,609,673 km (0.119 R)
• M7: 2,603,601 km (0.086 R)
• M8: 3,307,908 km (0.103 R)
• M9: 3,632,087 km (0.073 R)
• M10: 4,236,911 km (0.076 R)
• M11: 4,480,307 km (0.101 R)
• M12: 4,647,557 km (0.098 R)
• M13: 5,359,344 km (0.066 R)
• M14: 6,243,916 km (0.118 R)
• M15: 6,885,242 km (0.096 R)
• M16: 9,340,592 km (0.111 R)
• M17: 10,516,581 km (0.087 R)
• M18: 12,433,229 km (0.12 R)
• M19: 13,387,364 km (0.067 R)
• M20: 13,676,985 km (0.082 R)
• M21: 14,754,389 km (0.093 R)
• M22: 15,503,276 km (0.109 R)
• M23: 19,409,875 km (0.085 R)
• M24: 20,537,244 km (0.077 R)
• M25: 21,156,131 km (0.114 R)
• M26: 21,470,137 km (0.071 R)
• M27: 23,004,413 km (0.058 R)
• M28: 29,384,612 km (0.061 R)
• M29: 30,969,153 km (0.103 R)
• M30: 32,505,673 km (0.108 R)
• M31: 39,515,230 km (0.069 R)

Planet 5 - Ice Giant

Semi-Major Axis: 7.6 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 356.9

Radius: 7

Gravity: 7.28 G

Time & Orbit

Eccentricity (e): 0.139

Orbit Range: 6.54 AU - 8.66 AU

Year: 14462 Days

Day: 15.6 Hours

Environment

Temp: -225 °C

Axial Tilt: 125.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 48,640,603 km

• M1: 120,576 km (0.085 R)
• M2: 424,708 km (0.079 R)
• M3: 701,913 km (0.071 R)
• M4: 1,251,087 km (0.088 R)
• M5: 1,685,370 km (0.089 R)
• M6: 5,231,886 km (0.108 R)
• M7: 8,459,161 km (0.035 R)
• M8: 11,821,972 km (0.082 R)
• M9: 12,223,941 km (0.103 R)
• M10: 18,009,639 km (0.032 R)
• M11: 21,531,472 km (0.114 R)
• M12: 25,202,753 km (0.114 R)
• M13: 31,955,003 km (0.082 R)
• M14: 35,033,278 km (0.095 R)
• M15: 38,804,940 km (0.037 R)
• M16: 41,245,479 km (0.088 R)
• M17: 42,973,185 km (0.066 R)
• M18: 48,737,191 km (0.057 R)

Planet 6 - Ice Giant

Semi-Major Axis: 8.83 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 805.7

Radius: 3.2

Gravity: 78.68 G

Time & Orbit

Eccentricity (e): 0.152

Orbit Range: 7.49 AU - 10.17 AU

Year: 18111 Days

Day: 15.1 Hours

Environment

Temp: -230 °C

Axial Tilt: 33.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (38)

Outer Limit: 48,640,603 km

• M1: 39,793 km (0.088 R)
• M2: 139,874 km (0.112 R)
• M3: 492,775 km (0.078 R)
• M4: 1,158,336 km (0.103 R)
• M5: 1,551,928 km (0.076 R)
• M6: 1,724,863 km (0.105 R)
• M7: 2,171,712 km (0.111 R)
• M8: 2,278,226 km (0.11 R)
• M9: 2,915,513 km (0.115 R)
• M10: 3,487,426 km (0.099 R)
• M11: 4,130,397 km (0.1 R)
• M12: 5,767,297 km (0.091 R)
• M13: 8,559,093 km (0.113 R)
• M14: 8,988,588 km (0.104 R)
• M15: 10,007,050 km (0.077 R)
• M16: 10,243,415 km (0.098 R)
• M17: 10,544,107 km (0.075 R)
• M18: 11,610,440 km (0.086 R)
• M19: 12,541,089 km (0.038 R)
• M20: 13,881,934 km (0.113 R)
• M21: 14,324,445 km (0.116 R)
• M22: 15,005,714 km (0.11 R)
• M23: 16,108,100 km (0.119 R)
• M24: 16,351,197 km (0.063 R)
• M25: 17,263,295 km (0.083 R)
• M26: 18,828,089 km (0.11 R)
• M27: 20,296,242 km (0.11 R)
• M28: 22,437,137 km (0.11 R)
• M29: 23,354,621 km (0.082 R)
• M30: 25,482,501 km (0.099 R)
• M31: 26,368,719 km (0.067 R)
• M32: 27,620,404 km (0.082 R)
• M33: 31,486,163 km (0.11 R)
• M34: 32,894,029 km (0.109 R)
• M35: 36,110,233 km (0.114 R)
• M36: 37,651,839 km (0.05 R)
• M37: 42,693,587 km (0.095 R)
• M38: 51,419,780 km (0.114 R)

Planet 7 - Ice Giant

Semi-Major Axis: 9.41 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 180.3

Radius: 6.2

Gravity: 4.69 G

Time & Orbit

Eccentricity (e): 0.224

Orbit Range: 7.3 AU - 11.52 AU

Year: 19925 Days

Day: 19.1 Hours

Environment

Temp: -227 °C

Axial Tilt: 27.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 48,640,603 km

• M1: 80,184 km (0.079 R)
• M2: 723,605 km (0.114 R)
• M3: 1,143,227 km (0.118 R)
• M4: 1,414,747 km (0.087 R)
• M5: 1,886,579 km (0.115 R)
• M6: 2,658,653 km (0.104 R)
• M7: 3,623,859 km (0.076 R)
• M8: 3,911,386 km (0.083 R)
• M9: 5,481,416 km (0.054 R)
• M10: 6,557,024 km (0.086 R)
• M11: 9,406,116 km (0.115 R)
• M12: 9,700,225 km (0.113 R)
• M13: 10,778,078 km (0.072 R)
• M14: 14,358,703 km (0.09 R)
• M15: 16,100,172 km (0.091 R)
• M16: 17,312,064 km (0.118 R)
• M17: 18,278,915 km (0.058 R)
• M18: 21,733,728 km (0.054 R)
• M19: 24,848,506 km (0.113 R)
• M20: 28,963,793 km (0.069 R)
• M21: 36,073,283 km (0.114 R)
• M22: 39,518,671 km (0.105 R)
• M23: 42,242,400 km (0.084 R)
• M24: 43,312,024 km (0.067 R)

Kuiper Belt

Range: 30 - 51 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 353 - 15,261 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit