🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.3 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.59 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 654.3

Radius: 11.4

Gravity: 5.03 G

Time & Orbit

Eccentricity (e): 0.236

Orbit Range: 0.45 AU - 0.73 AU

Year: 307 Days

Day: 6 Hours

Environment

Temp: -143 °C

Axial Tilt: 10.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 82,006,632 km

• M1: 141,819 km (0.056 R)
• M2: 564,732 km (0.072 R)
• M3: 1,211,892 km (0.059 R)
• M4: 2,089,583 km (0.106 R)
• M5: 2,663,141 km (0.116 R)
• M6: 3,883,262 km (0.045 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.63 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 266.7

Radius: 15

Gravity: 1.19 G

Time & Orbit

Eccentricity (e): 0.021

Orbit Range: 0.62 AU - 0.64 AU

Year: 339 Days

Day: 5.8 Hours

Environment

Temp: -158 °C

Axial Tilt: 23.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 82,006,632 km

• M1: 186,549 km (0.12 R)
• M2: 737,667 km (0.052 R)
• M3: 1,469,500 km (0.095 R)
• M4: 2,198,490 km (0.099 R)
• M5: 2,826,801 km (0.094 R)
• M6: 3,502,834 km (0.115 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.09 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 234.1

Radius: 10.1

Gravity: 2.29 G

Time & Orbit

Eccentricity (e): 0.233

Orbit Range: 0.84 AU - 1.34 AU

Year: 772 Days

Day: 7.3 Hours

Environment

Temp: -187 °C

Axial Tilt: 37.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 82,006,632 km

• M1: 125,812 km (0.076 R)
• M2: 452,085 km (0.091 R)
• M3: 864,825 km (0.087 R)
• M4: 1,233,285 km (0.097 R)
• M5: 1,550,432 km (0.097 R)
• M6: 2,916,560 km (0.111 R)
• M7: 3,322,718 km (0.116 R)
• M8: 4,911,148 km (0.06 R)
• M9: 5,589,276 km (0.105 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.58 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 779.3

Radius: 12.6

Gravity: 4.91 G

Time & Orbit

Eccentricity (e): 0.181

Orbit Range: 1.29 AU - 1.87 AU

Year: 1347 Days

Day: 8.5 Hours

Environment

Temp: -183 °C

Axial Tilt: 0.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 82,006,632 km

• M1: 156,779 km (0.057 R)
• M2: 598,541 km (0.052 R)
• M3: 1,000,660 km (0.036 R)
• M4: 1,404,874 km (0.09 R)
• M5: 1,900,491 km (0.111 R)
• M6: 2,330,136 km (0.078 R)
• M7: 3,105,652 km (0.11 R)
• M8: 3,594,538 km (0.108 R)
• M9: 4,081,778 km (0.117 R)
• M10: 4,632,148 km (0.071 R)
• M11: 5,190,149 km (0.074 R)
• M12: 5,748,149 km (0.113 R)
• M13: 6,758,981 km (0.094 R)
• M14: 7,912,381 km (0.041 R)
• M15: 9,131,753 km (0.082 R)
• M16: 9,947,211 km (0.104 R)
• M17: 10,372,817 km (0.113 R)
• M18: 11,016,836 km (0.079 R)
• M19: 11,472,661 km (0.112 R)
• M20: 12,459,857 km (0.102 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.87 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 278.1

Radius: 9.4

Gravity: 3.15 G

Time & Orbit

Eccentricity (e): 0.19

Orbit Range: 1.51 AU - 2.23 AU

Year: 1734 Days

Day: 6.2 Hours

Environment

Temp: -193 °C

Axial Tilt: 51.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 82,006,632 km

• M1: 116,986 km (0.081 R)
• M2: 498,759 km (0.099 R)
• M3: 1,287,439 km (0.113 R)
• M4: 1,733,690 km (0.115 R)
• M5: 2,107,684 km (0.099 R)
• M6: 2,632,623 km (0.05 R)
• M7: 3,862,916 km (0.093 R)
• M8: 4,261,595 km (0.08 R)
• M9: 6,452,455 km (0.109 R)
• M10: 6,991,157 km (0.07 R)
• M11: 8,238,953 km (0.089 R)
• M12: 8,538,448 km (0.096 R)
• M13: 10,053,874 km (0.104 R)
• M14: 10,843,003 km (0.035 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.68 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 554.6

Radius: 14

Gravity: 2.83 G

Time & Orbit

Eccentricity (e): 0.093

Orbit Range: 3.34 AU - 4.02 AU

Year: 4788 Days

Day: 13.3 Hours

Environment

Temp: -225 °C

Axial Tilt: 11.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 82,006,632 km

• M1: 180,265 km (0.082 R)
• M2: 809,624 km (0.08 R)
• M3: 1,399,937 km (0.113 R)
• M4: 2,129,974 km (0.081 R)
• M5: 2,683,038 km (0.083 R)
• M6: 3,631,638 km (0.062 R)
• M7: 4,793,565 km (0.11 R)
• M8: 5,312,220 km (0.047 R)
• M9: 8,906,608 km (0.113 R)
• M10: 10,272,437 km (0.049 R)
• M11: 13,316,454 km (0.065 R)
• M12: 15,374,173 km (0.106 R)
• M13: 16,450,081 km (0.104 R)
• M14: 17,095,596 km (0.089 R)

Planet 7 - Ice Giant

Semi-Major Axis: 5.66 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 524.2

Radius: 4.3

Gravity: 28.35 G

Time & Orbit

Eccentricity (e): 0.093

Orbit Range: 5.13 AU - 6.19 AU

Year: 9133 Days

Day: 19.8 Hours

Environment

Temp: -225 °C

Axial Tilt: 13.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 82,006,632 km

• M1: 55,202 km (0.09 R)
• M2: 368,609 km (0.117 R)
• M3: 595,250 km (0.09 R)
• M4: 1,166,415 km (0.056 R)
• M5: 1,897,499 km (0.094 R)
• M6: 2,124,439 km (0.119 R)
• M7: 2,369,181 km (0.116 R)
• M8: 2,691,415 km (0.114 R)
• M9: 3,493,260 km (0.073 R)
• M10: 3,710,177 km (0.083 R)
• M11: 5,052,668 km (0.114 R)
• M12: 6,086,240 km (0.049 R)
• M13: 6,507,807 km (0.12 R)
• M14: 6,986,071 km (0.067 R)
• M15: 8,095,489 km (0.056 R)
• M16: 8,823,582 km (0.079 R)
• M17: 9,782,055 km (0.053 R)
• M18: 11,216,848 km (0.107 R)
• M19: 11,583,064 km (0.069 R)
• M20: 15,437,902 km (0.089 R)
• M21: 15,760,584 km (0.073 R)
• M22: 17,372,651 km (0.093 R)
• M23: 18,290,284 km (0.094 R)
• M24: 19,017,629 km (0.102 R)
• M25: 20,530,064 km (0.045 R)
• M26: 22,366,378 km (0.115 R)
• M27: 23,451,261 km (0.056 R)
• M28: 24,570,702 km (0.087 R)
• M29: 26,730,148 km (0.071 R)
• M30: 28,915,174 km (0.055 R)
• M31: 30,201,417 km (0.098 R)
• M32: 31,216,438 km (0.073 R)
• M33: 31,422,135 km (0.119 R)
• M34: 34,179,074 km (0.077 R)
• M35: 38,021,795 km (0.105 R)
• M36: 39,204,516 km (0.111 R)

Planet 8 - Ice Giant

Semi-Major Axis: 10.7 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 608.7

Radius: 6.3

Gravity: 15.34 G

Time & Orbit

Eccentricity (e): 0.041

Orbit Range: 10.26 AU - 11.14 AU

Year: 23739 Days

Day: 24.6 Hours

Environment

Temp: -241 °C

Axial Tilt: 20.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 82,006,632 km

• M1: 88,562 km (0.065 R)
• M2: 338,540 km (0.11 R)
• M3: 614,099 km (0.05 R)
• M4: 837,150 km (0.112 R)
• M5: 1,358,498 km (0.087 R)
• M6: 2,380,102 km (0.077 R)
• M7: 3,900,764 km (0.082 R)
• M8: 4,194,724 km (0.058 R)
• M9: 5,089,320 km (0.119 R)
• M10: 6,412,064 km (0.107 R)
• M11: 6,729,511 km (0.08 R)
• M12: 7,057,280 km (0.088 R)
• M13: 7,694,417 km (0.081 R)
• M14: 8,970,188 km (0.107 R)
• M15: 12,001,489 km (0.076 R)
• M16: 12,344,816 km (0.066 R)
• M17: 16,146,397 km (0.094 R)
• M18: 19,228,712 km (0.079 R)
• M19: 23,739,686 km (0.116 R)
• M20: 26,642,932 km (0.09 R)
• M21: 40,013,690 km (0.092 R)
• M22: 43,457,284 km (0.09 R)
• M23: 60,203,120 km (0.066 R)
• M24: 74,852,043 km (0.117 R)
• M25: 77,898,902 km (0.11 R)

Kuiper Belt

Range: 30 - 60 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 319 - 11,254 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit