🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.39 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.78 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 85.8

Radius: 8.1

Gravity: 1.31 G

Time & Orbit

Eccentricity (e): 0.138

Orbit Range: 0.67 AU - 0.89 AU

Year: 476 Days

Day: 12.7 Hours

Environment

Temp: -169 °C

Axial Tilt: 11.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 48,776,396 km

• M1: 100,679 km (0.12 R)
• M2: 372,947 km (0.09 R)
• M3: 653,294 km (0.076 R)
• M4: 926,011 km (0.066 R)
• M5: 1,186,760 km (0.085 R)
• M6: 1,459,477 km (0.089 R)
• M7: 1,762,413 km (0.111 R)
• M8: 2,031,988 km (0.091 R)
• M9: 2,721,484 km (0.105 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 724.6

Radius: 10.1

Gravity: 7.1 G

Time & Orbit

Eccentricity (e): 0.024

Orbit Range: 0.98 AU - 1.02 AU

Year: 690 Days

Day: 8.3 Hours

Environment

Temp: -185 °C

Axial Tilt: 6.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 48,776,396 km

• M1: 125,812 km (0.11 R)
• M2: 525,687 km (0.101 R)
• M3: 944,561 km (0.025 R)
• M4: 1,508,994 km (0.1 R)
• M5: 1,891,216 km (0.084 R)
• M6: 2,337,766 km (0.056 R)
• M7: 2,889,483 km (0.032 R)
• M8: 3,273,800 km (0.075 R)
• M9: 4,237,958 km (0.094 R)
• M10: 4,905,015 km (0.079 R)
• M11: 5,219,320 km (0.087 R)
• M12: 5,546,939 km (0.088 R)
• M13: 6,064,548 km (0.091 R)
• M14: 6,447,818 km (0.105 R)
• M15: 7,465,981 km (0.07 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.07 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 33.9

Radius: 12.8

Gravity: 0.21 G

Time & Orbit

Eccentricity (e): 0.156

Orbit Range: 0.9 AU - 1.24 AU

Year: 764 Days

Day: 5.8 Hours

Environment

Temp: -187 °C

Axial Tilt: 3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 48,776,396 km

• M1: 162,314 km (0.109 R)
• M2: 1,413,550 km (0.095 R)
• M3: 2,000,872 km (0.037 R)
• M4: 2,863,453 km (0.094 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.46 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 71.8

Radius: 10

Gravity: 0.72 G

Time & Orbit

Eccentricity (e): 0.235

Orbit Range: 1.12 AU - 1.8 AU

Year: 1218 Days

Day: 12.4 Hours

Environment

Temp: -191 °C

Axial Tilt: 90.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 48,776,396 km

• M1: 126,111 km (0.114 R)
• M2: 461,360 km (0.096 R)
• M3: 923,318 km (0.105 R)
• M4: 1,296,864 km (0.083 R)
• M5: 2,516,535 km (0.098 R)
• M6: 3,117,171 km (0.114 R)
• M7: 5,327,479 km (0.084 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 694.2

Radius: 10.8

Gravity: 5.95 G

Time & Orbit

Eccentricity (e): 0.062

Orbit Range: 1.68 AU - 1.9 AU

Year: 1653 Days

Day: 5.8 Hours

Environment

Temp: -203 °C

Axial Tilt: 23.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 48,776,396 km

• M1: 134,788 km (0.077 R)
• M2: 477,516 km (0.082 R)
• M3: 1,597,556 km (0.091 R)
• M4: 1,995,636 km (0.116 R)
• M5: 2,767,112 km (0.085 R)
• M6: 3,883,112 km (0.118 R)
• M7: 5,104,728 km (0.07 R)
• M8: 5,700,576 km (0.046 R)
• M9: 7,854,935 km (0.076 R)
• M10: 8,803,087 km (0.073 R)
• M11: 9,209,245 km (0.036 R)
• M12: 9,759,466 km (0.104 R)
• M13: 11,916,069 km (0.088 R)
• M14: 13,492,082 km (0.098 R)

Planet 6 - Ice Giant

Semi-Major Axis: 5.81 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 198.7

Radius: 3.6

Gravity: 15.33 G

Time & Orbit

Eccentricity (e): 0.025

Orbit Range: 5.66 AU - 5.96 AU

Year: 9667 Days

Day: 16.4 Hours

Environment

Temp: -218 °C

Axial Tilt: 19.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 48,776,396 km

• M1: 44,730 km (0.089 R)
• M2: 231,578 km (0.097 R)
• M3: 754,272 km (0.118 R)
• M4: 881,131 km (0.056 R)
• M5: 1,613,862 km (0.092 R)
• M6: 2,012,391 km (0.061 R)
• M7: 2,524,763 km (0.081 R)
• M8: 3,240,290 km (0.08 R)
• M9: 3,406,643 km (0.09 R)
• M10: 3,689,083 km (0.055 R)
• M11: 4,761,551 km (0.118 R)
• M12: 5,368,918 km (0.081 R)
• M13: 6,246,160 km (0.104 R)
• M14: 8,203,050 km (0.034 R)
• M15: 9,195,332 km (0.115 R)
• M16: 13,060,642 km (0.113 R)
• M17: 14,463,571 km (0.065 R)
• M18: 16,263,981 km (0.038 R)
• M19: 16,445,743 km (0.055 R)
• M20: 16,813,454 km (0.094 R)
• M21: 17,949,201 km (0.032 R)
• M22: 20,372,388 km (0.058 R)
• M23: 20,725,289 km (0.082 R)
• M24: 21,443,209 km (0.083 R)
• M25: 21,955,582 km (0.113 R)
• M26: 22,103,534 km (0.11 R)
• M27: 22,626,229 km (0.093 R)
• M28: 23,233,896 km (0.059 R)
• M29: 24,481,392 km (0.049 R)
• M30: 25,527,381 km (0.114 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.44 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 926.5

Radius: 4

Gravity: 57.91 G

Time & Orbit

Eccentricity (e): 0.221

Orbit Range: 5.02 AU - 7.86 AU

Year: 11281 Days

Day: 17.5 Hours

Environment

Temp: -228 °C

Axial Tilt: 12.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (38)

Outer Limit: 48,776,396 km

• M1: 49,816 km (0.1 R)
• M2: 184,753 km (0.106 R)
• M3: 331,658 km (0.086 R)
• M4: 775,815 km (0.068 R)
• M5: 979,268 km (0.063 R)
• M6: 1,117,795 km (0.093 R)
• M7: 1,243,308 km (0.071 R)
• M8: 1,378,395 km (0.104 R)
• M9: 1,614,909 km (0.113 R)
• M10: 2,131,171 km (0.11 R)
• M11: 2,574,280 km (0.113 R)
• M12: 3,004,374 km (0.062 R)
• M13: 3,249,116 km (0.073 R)
• M14: 4,972,184 km (0.054 R)
• M15: 5,820,404 km (0.087 R)
• M16: 6,557,174 km (0.102 R)
• M17: 7,618,421 km (0.086 R)
• M18: 9,808,534 km (0.106 R)
• M19: 11,599,221 km (0.087 R)
• M20: 12,696,521 km (0.074 R)
• M21: 12,885,912 km (0.104 R)
• M22: 13,077,098 km (0.086 R)
• M23: 13,530,828 km (0.102 R)
• M24: 14,196,988 km (0.084 R)
• M25: 17,701,168 km (0.085 R)
• M26: 18,096,406 km (0.053 R)
• M27: 18,416,695 km (0.071 R)
• M28: 18,822,404 km (0.11 R)
• M29: 19,905,193 km (0.11 R)
• M30: 21,294,060 km (0.077 R)
• M31: 21,472,082 km (0.062 R)
• M32: 25,745,046 km (0.109 R)
• M33: 29,325,521 km (0.089 R)
• M34: 34,925,119 km (0.075 R)
• M35: 37,196,164 km (0.086 R)
• M36: 50,196,518 km (0.055 R)
• M37: 51,466,006 km (0.06 R)
• M38: 54,234,314 km (0.062 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.55 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 99.2

Radius: 7.3

Gravity: 1.86 G

Time & Orbit

Eccentricity (e): 0.031

Orbit Range: 7.32 AU - 7.78 AU

Year: 14320 Days

Day: 23.1 Hours

Environment

Temp: -233 °C

Axial Tilt: 32.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 48,776,396 km

• M1: 93,199 km (0.077 R)
• M2: 373,695 km (0.117 R)
• M3: 1,840,503 km (0.107 R)
• M4: 2,240,677 km (0.102 R)
• M5: 3,276,343 km (0.099 R)
• M6: 3,819,383 km (0.106 R)
• M7: 4,652,494 km (0.047 R)
• M8: 7,117,268 km (0.088 R)
• M9: 8,178,665 km (0.06 R)
• M10: 8,450,036 km (0.084 R)
• M11: 10,385,084 km (0.114 R)
• M12: 10,703,428 km (0.095 R)
• M13: 11,844,711 km (0.03 R)
• M14: 17,801,698 km (0.105 R)
• M15: 19,743,179 km (0.092 R)
• M16: 20,657,671 km (0.043 R)
• M17: 27,001,368 km (0.058 R)
• M18: 28,127,242 km (0.107 R)
• M19: 31,125,483 km (0.115 R)

Planet 9 - Ice Giant

Semi-Major Axis: 8.72 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 388.8

Radius: 5.8

Gravity: 11.56 G

Time & Orbit

Eccentricity (e): 0.181

Orbit Range: 7.14 AU - 10.3 AU

Year: 17774 Days

Day: 21.3 Hours

Environment

Temp: -228 °C

Axial Tilt: 39.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 48,776,396 km

• M1: 72,106 km (0.117 R)
• M2: 503,397 km (0.052 R)
• M3: 1,130,212 km (0.102 R)
• M4: 1,390,363 km (0.096 R)
• M5: 1,642,435 km (0.062 R)
• M6: 2,439,792 km (0.113 R)
• M7: 3,495,653 km (0.104 R)
• M8: 5,514,626 km (0.119 R)
• M9: 5,919,887 km (0.049 R)
• M10: 6,625,690 km (0.08 R)
• M11: 7,342,263 km (0.101 R)
• M12: 9,961,273 km (0.105 R)
• M13: 10,396,005 km (0.078 R)
• M14: 11,303,017 km (0.061 R)
• M15: 12,200,305 km (0.075 R)
• M16: 12,697,867 km (0.069 R)
• M17: 13,933,546 km (0.119 R)
• M18: 21,871,209 km (0.077 R)
• M19: 27,250,000 km (0.096 R)
• M20: 28,530,408 km (0.109 R)
• M21: 30,981,270 km (0.08 R)
• M22: 31,906,084 km (0.06 R)
• M23: 32,140,205 km (0.07 R)
• M24: 38,503,500 km (0.091 R)
• M25: 39,572,227 km (0.116 R)
• M26: 42,754,772 km (0.106 R)
• M27: 43,900,542 km (0.114 R)
• M28: 46,403,016 km (0.08 R)
• M29: 47,765,553 km (0.092 R)
• M30: 48,688,572 km (0.116 R)
• M31: 52,663,088 km (0.098 R)
• M32: 53,154,068 km (0.037 R)
• M33: 56,505,659 km (0.107 R)

Planet 10 - Ice Giant

Semi-Major Axis: 10.06 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 148.8

Radius: 5.8

Gravity: 4.42 G

Time & Orbit

Eccentricity (e): 0.077

Orbit Range: 9.29 AU - 10.83 AU

Year: 22025 Days

Day: 20.9 Hours

Environment

Temp: -227 °C

Axial Tilt: 10.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 48,776,396 km

• M1: 73,004 km (0.1 R)
• M2: 438,920 km (0.048 R)
• M3: 815,009 km (0.079 R)
• M4: 1,164,320 km (0.069 R)
• M5: 2,160,343 km (0.04 R)
• M6: 4,480,755 km (0.082 R)
• M7: 5,458,378 km (0.113 R)
• M8: 8,398,275 km (0.118 R)
• M9: 8,579,587 km (0.059 R)
• M10: 9,139,383 km (0.101 R)
• M11: 10,964,776 km (0.103 R)
• M12: 11,236,146 km (0.031 R)
• M13: 11,512,005 km (0.082 R)
• M14: 11,735,953 km (0.072 R)
• M15: 19,410,922 km (0.099 R)
• M16: 22,393,904 km (0.12 R)
• M17: 27,221,876 km (0.118 R)
• M18: 34,176,232 km (0.04 R)
• M19: 36,653,423 km (0.079 R)
• M20: 40,525,166 km (0.105 R)
• M21: 42,626,118 km (0.119 R)

Kuiper Belt

Range: 30 - 48 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 219 - 10,342 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit