🌌 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: 0.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 899.4

Radius: 13.7

Gravity: 4.79 G

Time & Orbit

Eccentricity (e): 0.124

Orbit Range: 0.7 AU - 0.9 AU

Year: 485 Days

Day: 7.3 Hours

Environment

Temp: -164 °C

Axial Tilt: 2.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 83,930,655 km

• M1: 170,392 km (0.097 R)
• M2: 599,887 km (0.078 R)
• M3: 1,273,227 km (0.1 R)
• M4: 2,050,089 km (0.108 R)
• M5: 2,507,260 km (0.044 R)
• M6: 2,942,441 km (0.109 R)
• M7: 3,671,730 km (0.057 R)
• M8: 4,151,042 km (0.108 R)
• M9: 4,861,033 km (0.045 R)
• M10: 5,475,581 km (0.109 R)
• M11: 6,048,691 km (0.092 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.01 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 915.5

Radius: 14.9

Gravity: 4.12 G

Time & Orbit

Eccentricity (e): 0.14

Orbit Range: 0.87 AU - 1.15 AU

Year: 688 Days

Day: 7.7 Hours

Environment

Temp: -183 °C

Axial Tilt: 35.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 83,930,655 km

• M1: 185,352 km (0.118 R)
• M2: 650,601 km (0.086 R)
• M3: 1,244,953 km (0.089 R)
• M4: 1,793,379 km (0.067 R)
• M5: 2,636,662 km (0.106 R)
• M6: 3,359,370 km (0.107 R)
• M7: 4,337,889 km (0.119 R)
• M8: 4,920,872 km (0.094 R)
• M9: 5,650,910 km (0.079 R)
• M10: 6,265,757 km (0.068 R)
• M11: 7,374,726 km (0.105 R)
• M12: 8,061,680 km (0.051 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.02 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 759.3

Radius: 12.8

Gravity: 4.63 G

Time & Orbit

Eccentricity (e): 0.231

Orbit Range: 0.78 AU - 1.26 AU

Year: 699 Days

Day: 10.7 Hours

Environment

Temp: -172 °C

Axial Tilt: 37.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 83,930,655 km

• M1: 159,172 km (0.068 R)
• M2: 619,335 km (0.117 R)
• M3: 1,021,903 km (0.077 R)
• M4: 1,704,369 km (0.034 R)
• M5: 2,333,577 km (0.065 R)
• M6: 2,883,200 km (0.066 R)
• M7: 3,600,522 km (0.039 R)
• M8: 4,047,071 km (0.074 R)
• M9: 5,577,158 km (0.05 R)
• M10: 6,886,140 km (0.109 R)
• M11: 7,350,043 km (0.069 R)
• M12: 8,243,142 km (0.074 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.42 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 638.6

Radius: 11.2

Gravity: 5.09 G

Time & Orbit

Eccentricity (e): 0.006

Orbit Range: 1.41 AU - 1.43 AU

Year: 1148 Days

Day: 11 Hours

Environment

Temp: -198 °C

Axial Tilt: 6.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 83,930,655 km

• M1: 139,425 km (0.112 R)
• M2: 538,852 km (0.107 R)
• M3: 897,438 km (0.089 R)
• M4: 1,280,259 km (0.085 R)
• M5: 1,792,631 km (0.062 R)
• M6: 2,226,016 km (0.112 R)
• M7: 2,617,664 km (0.056 R)
• M8: 2,974,903 km (0.092 R)
• M9: 3,679,808 km (0.07 R)
• M10: 4,672,540 km (0.063 R)
• M11: 5,920,785 km (0.115 R)
• M12: 6,519,176 km (0.109 R)
• M13: 6,868,786 km (0.084 R)
• M14: 7,863,014 km (0.103 R)
• M15: 8,340,530 km (0.093 R)
• M16: 9,324,884 km (0.058 R)
• M17: 9,860,444 km (0.088 R)
• M18: 10,479,331 km (0.084 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 518.7

Radius: 12.8

Gravity: 3.17 G

Time & Orbit

Eccentricity (e): 0.108

Orbit Range: 1.51 AU - 1.87 AU

Year: 1490 Days

Day: 9.8 Hours

Environment

Temp: -199 °C

Axial Tilt: 5.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 83,930,655 km

• M1: 159,172 km (0.056 R)
• M2: 738,864 km (0.118 R)
• M3: 1,338,901 km (0.106 R)
• M4: 2,265,061 km (0.117 R)
• M5: 2,937,504 km (0.112 R)
• M6: 3,457,207 km (0.114 R)
• M7: 4,003,987 km (0.101 R)
• M8: 5,171,000 km (0.036 R)
• M9: 6,552,985 km (0.103 R)
• M10: 7,164,990 km (0.113 R)
• M11: 8,475,467 km (0.113 R)
• M12: 10,098,305 km (0.054 R)
• M13: 11,324,260 km (0.095 R)
• M14: 11,884,204 km (0.118 R)

Asteroid Belt

Center: 2.82 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 6 - Gas Giant

Semi-Major Axis: 3.95 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 164.2

Radius: 9.4

Gravity: 1.86 G

Time & Orbit

Eccentricity (e): 0.213

Orbit Range: 3.11 AU - 4.79 AU

Year: 5325 Days

Day: 12.5 Hours

Environment

Temp: -214 °C

Axial Tilt: 29.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 83,930,655 km

• M1: 116,986 km (0.082 R)
• M2: 431,739 km (0.08 R)
• M3: 1,261,409 km (0.109 R)
• M4: 1,578,108 km (0.041 R)
• M5: 2,253,842 km (0.065 R)
• M6: 3,661,258 km (0.055 R)
• M7: 3,969,729 km (0.112 R)
• M8: 5,530,932 km (0.113 R)
• M9: 5,964,916 km (0.061 R)
• M10: 8,124,511 km (0.119 R)
• M11: 8,856,044 km (0.091 R)
• M12: 9,703,516 km (0.116 R)
• M13: 10,072,125 km (0.105 R)
• M14: 11,518,288 km (0.09 R)
• M15: 15,109,983 km (0.074 R)
• M16: 15,456,003 km (0.094 R)
• M17: 17,481,409 km (0.087 R)
• M18: 18,529,641 km (0.073 R)
• M19: 18,926,075 km (0.108 R)

Planet 7 - Ice Giant

Semi-Major Axis: 5.88 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 929

Radius: 6.1

Gravity: 24.97 G

Time & Orbit

Eccentricity (e): 0.17

Orbit Range: 4.88 AU - 6.88 AU

Year: 9671 Days

Day: 24 Hours

Environment

Temp: -228 °C

Axial Tilt: 4.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 83,930,655 km

• M1: 77,940 km (0.088 R)
• M2: 403,914 km (0.117 R)
• M3: 635,043 km (0.116 R)
• M4: 1,061,995 km (0.12 R)
• M5: 1,574,966 km (0.092 R)
• M6: 1,954,795 km (0.097 R)
• M7: 3,317,632 km (0.066 R)
• M8: 4,429,294 km (0.082 R)
• M9: 4,860,285 km (0.089 R)
• M10: 6,023,109 km (0.116 R)
• M11: 6,283,859 km (0.076 R)
• M12: 6,513,342 km (0.113 R)
• M13: 6,708,717 km (0.088 R)
• M14: 7,029,604 km (0.058 R)
• M15: 7,445,037 km (0.116 R)
• M16: 7,965,039 km (0.103 R)
• M17: 9,223,307 km (0.114 R)
• M18: 9,772,032 km (0.109 R)
• M19: 10,770,747 km (0.088 R)
• M20: 12,846,568 km (0.08 R)
• M21: 13,404,418 km (0.101 R)
• M22: 13,978,275 km (0.117 R)
• M23: 14,903,389 km (0.063 R)
• M24: 18,462,920 km (0.099 R)
• M25: 20,065,562 km (0.082 R)
• M26: 21,412,691 km (0.079 R)
• M27: 21,758,711 km (0.065 R)
• M28: 23,453,356 km (0.11 R)
• M29: 30,022,348 km (0.064 R)
• M30: 31,335,368 km (0.104 R)
• M31: 34,784,347 km (0.113 R)
• M32: 35,382,739 km (0.105 R)
• M33: 36,600,166 km (0.056 R)
• M34: 39,635,208 km (0.098 R)
• M35: 40,419,400 km (0.09 R)
• M36: 44,216,194 km (0.079 R)

Planet 8 - Ice Giant

Semi-Major Axis: 10.25 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 991.9

Radius: 7.7

Gravity: 16.73 G

Time & Orbit

Eccentricity (e): 0.228

Orbit Range: 7.91 AU - 12.59 AU

Year: 22258 Days

Day: 22.3 Hours

Environment

Temp: -228 °C

Axial Tilt: 11.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 83,930,655 km

• M1: 101,278 km (0.11 R)
• M2: 1,521,410 km (0.118 R)
• M3: 2,079,859 km (0.073 R)
• M4: 4,697,972 km (0.119 R)
• M5: 15,376,417 km (0.085 R)
• M6: 15,797,834 km (0.103 R)
• M7: 16,575,594 km (0.054 R)
• M8: 20,142,755 km (0.044 R)
• M9: 24,991,521 km (0.101 R)
• M10: 27,131,070 km (0.069 R)
• M11: 27,622,648 km (0.113 R)
• M12: 30,963,618 km (0.045 R)
• M13: 36,913,723 km (0.073 R)
• M14: 38,127,411 km (0.1 R)
• M15: 47,911,860 km (0.085 R)
• M16: 55,419,279 km (0.089 R)
• M17: 61,749,812 km (0.106 R)
• M18: 69,916,210 km (0.06 R)
• M19: 83,082,618 km (0.099 R)
• M20: 86,747,018 km (0.077 R)

Planet 9 - Ice Giant

Semi-Major Axis: 10.6 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 671.2

Radius: 4.2

Gravity: 38.05 G

Time & Orbit

Eccentricity (e): 0.234

Orbit Range: 8.12 AU - 13.08 AU

Year: 23407 Days

Day: 17.4 Hours

Environment

Temp: -230 °C

Axial Tilt: 15.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 83,930,655 km

• M1: 52,509 km (0.073 R)
• M2: 220,058 km (0.088 R)
• M3: 471,682 km (0.118 R)
• M4: 897,587 km (0.086 R)
• M5: 1,099,694 km (0.06 R)
• M6: 1,316,162 km (0.033 R)
• M7: 1,509,592 km (0.105 R)
• M8: 2,119,203 km (0.095 R)
• M9: 2,931,669 km (0.069 R)
• M10: 3,407,540 km (0.097 R)
• M11: 3,710,476 km (0.1 R)
• M12: 4,097,635 km (0.083 R)
• M13: 6,134,410 km (0.104 R)
• M14: 6,536,829 km (0.045 R)
• M15: 8,594,996 km (0.075 R)
• M16: 8,928,599 km (0.059 R)
• M17: 9,328,474 km (0.118 R)
• M18: 10,983,625 km (0.08 R)
• M19: 15,100,559 km (0.062 R)
• M20: 15,749,963 km (0.042 R)
• M21: 17,454,930 km (0.119 R)
• M22: 19,373,373 km (0.085 R)
• M23: 23,300,616 km (0.113 R)
• M24: 25,506,287 km (0.093 R)
• M25: 27,368,182 km (0.112 R)
• M26: 30,327,677 km (0.118 R)
• M27: 31,884,393 km (0.108 R)
• M28: 46,809,623 km (0.119 R)
• M29: 49,236,549 km (0.104 R)
• M30: 58,390,143 km (0.076 R)
• M31: 62,844,719 km (0.099 R)
• M32: 63,052,361 km (0.071 R)
• M33: 67,086,118 km (0.088 R)
• M34: 68,834,767 km (0.101 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: 394 - 19,406 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit