🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.5 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.99 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 665

Radius: 10.6

Gravity: 5.92 G

Time & Orbit

Eccentricity (e): 0.047

Orbit Range: 0.94 AU - 1.04 AU

Year: 646 Days

Day: 6.8 Hours

Environment

Temp: -166 °C

Axial Tilt: 36.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 87,476,704 km

• M1: 131,796 km (0.106 R)
• M2: 506,090 km (0.118 R)
• M3: 926,609 km (0.113 R)
• M4: 1,354,459 km (0.094 R)
• M5: 1,778,719 km (0.086 R)
• M6: 2,156,603 km (0.075 R)
• M7: 2,923,591 km (0.058 R)
• M8: 3,614,584 km (0.091 R)
• M9: 4,809,871 km (0.087 R)
• M10: 6,057,068 km (0.085 R)
• M11: 6,470,407 km (0.114 R)
• M12: 6,818,671 km (0.109 R)
• M13: 7,419,755 km (0.106 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.61 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 921.6

Radius: 10.8

Gravity: 7.9 G

Time & Orbit

Eccentricity (e): 0.223

Orbit Range: 1.25 AU - 1.97 AU

Year: 1340 Days

Day: 8.5 Hours

Environment

Temp: -181 °C

Axial Tilt: 10.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 87,476,704 km

• M1: 138,079 km (0.116 R)
• M2: 501,153 km (0.119 R)
• M3: 881,431 km (0.119 R)
• M4: 1,225,356 km (0.07 R)
• M5: 1,880,744 km (0.113 R)
• M6: 3,420,705 km (0.093 R)
• M7: 5,561,151 km (0.036 R)
• M8: 7,700,850 km (0.11 R)
• M9: 9,454,436 km (0.077 R)
• M10: 10,612,623 km (0.046 R)
• M11: 10,995,593 km (0.087 R)
• M12: 12,086,910 km (0.117 R)
• M13: 13,329,170 km (0.06 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 771.7

Radius: 12

Gravity: 5.36 G

Time & Orbit

Eccentricity (e): 0.109

Orbit Range: 1.56 AU - 1.94 AU

Year: 1519 Days

Day: 8.7 Hours

Environment

Temp: -193 °C

Axial Tilt: 2.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 87,476,704 km

• M1: 149,448 km (0.109 R)
• M2: 536,159 km (0.115 R)
• M3: 1,103,284 km (0.104 R)
• M4: 1,598,453 km (0.067 R)
• M5: 2,056,821 km (0.12 R)
• M6: 2,861,807 km (0.104 R)
• M7: 4,096,887 km (0.112 R)
• M8: 5,305,638 km (0.109 R)
• M9: 7,049,052 km (0.034 R)
• M10: 8,008,572 km (0.111 R)
• M11: 8,505,237 km (0.103 R)
• M12: 9,463,711 km (0.05 R)
• M13: 10,321,954 km (0.115 R)
• M14: 10,770,149 km (0.1 R)
• M15: 11,412,223 km (0.082 R)
• M16: 12,117,577 km (0.113 R)
• M17: 13,049,721 km (0.068 R)

Planet 4 - Gas Giant

Semi-Major Axis: 5.66 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 31.4

Radius: 13.3

Gravity: 0.18 G

Time & Orbit

Eccentricity (e): 0.002

Orbit Range: 5.65 AU - 5.67 AU

Year: 8834 Days

Day: 9.9 Hours

Environment

Temp: -223 °C

Axial Tilt: 21.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 87,476,704 km

• M1: 165,455 km (0.113 R)
• M2: 1,099,544 km (0.098 R)
• M3: 2,337,467 km (0.116 R)
• M4: 3,907,945 km (0.114 R)
• M5: 8,196,916 km (0.117 R)

Planet 5 - Ice Giant

Semi-Major Axis: 6.72 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 169.8

Radius: 7.3

Gravity: 3.19 G

Time & Orbit

Eccentricity (e): 0.162

Orbit Range: 5.63 AU - 7.81 AU

Year: 11428 Days

Day: 16.2 Hours

Environment

Temp: -217 °C

Axial Tilt: 22.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 87,476,704 km

• M1: 90,806 km (0.051 R)
• M2: 361,279 km (0.097 R)
• M3: 826,827 km (0.105 R)
• M4: 1,078,002 km (0.089 R)
• M5: 1,380,788 km (0.078 R)
• M6: 2,255,038 km (0.035 R)
• M7: 2,646,087 km (0.117 R)
• M8: 3,608,301 km (0.071 R)
• M9: 4,496,014 km (0.062 R)
• M10: 5,374,752 km (0.034 R)
• M11: 7,215,704 km (0.096 R)
• M12: 7,800,033 km (0.059 R)
• M13: 9,441,271 km (0.111 R)
• M14: 10,274,980 km (0.082 R)
• M15: 11,689,727 km (0.036 R)
• M16: 20,677,118 km (0.088 R)
• M17: 21,555,108 km (0.093 R)
• M18: 25,482,202 km (0.103 R)
• M19: 25,815,506 km (0.108 R)
• M20: 28,320,074 km (0.102 R)
• M21: 29,402,265 km (0.08 R)
• M22: 30,982,168 km (0.053 R)

Planet 6 - Ice Giant

Semi-Major Axis: 6.84 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 239.4

Radius: 4.2

Gravity: 13.57 G

Time & Orbit

Eccentricity (e): 0.162

Orbit Range: 5.73 AU - 7.95 AU

Year: 11735 Days

Day: 21.4 Hours

Environment

Temp: -225 °C

Axial Tilt: 6.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 87,476,704 km

• M1: 112,348 km (0.063 R)
• M2: 246,388 km (0.075 R)
• M3: 496,815 km (0.057 R)
• M4: 1,539,661 km (0.038 R)
• M5: 1,802,355 km (0.103 R)
• M6: 1,983,369 km (0.073 R)
• M7: 3,013,948 km (0.114 R)
• M8: 3,291,452 km (0.068 R)
• M9: 3,656,022 km (0.083 R)
• M10: 4,305,277 km (0.06 R)
• M11: 6,024,905 km (0.114 R)
• M12: 8,317,941 km (0.114 R)
• M13: 11,899,314 km (0.102 R)
• M14: 12,321,778 km (0.118 R)
• M15: 12,918,823 km (0.05 R)
• M16: 13,879,242 km (0.112 R)
• M17: 14,465,815 km (0.091 R)
• M18: 15,068,844 km (0.064 R)
• M19: 18,971,703 km (0.076 R)
• M20: 19,913,870 km (0.106 R)
• M21: 24,162,450 km (0.041 R)
• M22: 24,668,838 km (0.07 R)
• M23: 25,096,240 km (0.075 R)
• M24: 25,355,044 km (0.064 R)
• M25: 25,702,859 km (0.09 R)
• M26: 30,616,251 km (0.061 R)
• M27: 37,004,230 km (0.096 R)
• M28: 37,564,175 km (0.113 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.3 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 772.9

Radius: 6.1

Gravity: 20.77 G

Time & Orbit

Eccentricity (e): 0.052

Orbit Range: 6.92 AU - 7.68 AU

Year: 12939 Days

Day: 15.4 Hours

Environment

Temp: -230 °C

Axial Tilt: 39.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 87,476,704 km

• M1: 78,389 km (0.062 R)
• M2: 322,832 km (0.101 R)
• M3: 542,143 km (0.072 R)
• M4: 2,443,083 km (0.025 R)
• M5: 3,049,104 km (0.097 R)
• M6: 3,246,723 km (0.054 R)
• M7: 3,920,212 km (0.109 R)
• M8: 4,813,760 km (0.09 R)
• M9: 6,417,898 km (0.113 R)
• M10: 6,995,346 km (0.081 R)
• M11: 9,086,874 km (0.025 R)
• M12: 10,083,345 km (0.109 R)
• M13: 12,986,292 km (0.051 R)
• M14: 15,085,150 km (0.071 R)
• M15: 15,299,673 km (0.116 R)
• M16: 17,400,177 km (0.063 R)
• M17: 18,194,691 km (0.106 R)
• M18: 18,519,169 km (0.111 R)
• M19: 18,930,264 km (0.09 R)
• M20: 20,988,432 km (0.119 R)
• M21: 21,435,281 km (0.093 R)
• M22: 24,544,971 km (0.096 R)
• M23: 26,777,420 km (0.12 R)
• M24: 28,483,584 km (0.105 R)
• M25: 31,176,645 km (0.115 R)
• M26: 35,527,250 km (0.117 R)
• M27: 42,785,739 km (0.057 R)
• M28: 43,359,596 km (0.059 R)
• M29: 44,669,625 km (0.041 R)
• M30: 46,457,170 km (0.074 R)
• M31: 50,492,722 km (0.11 R)
• M32: 52,759,429 km (0.08 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.9 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 140.9

Radius: 4.8

Gravity: 6.12 G

Time & Orbit

Eccentricity (e): 0.195

Orbit Range: 7.97 AU - 11.83 AU

Year: 20434 Days

Day: 24.6 Hours

Environment

Temp: -233 °C

Axial Tilt: 34.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 87,476,704 km

• M1: 70,610 km (0.093 R)
• M2: 3,652,432 km (0.09 R)
• M3: 7,548,110 km (0.111 R)
• M4: 10,852,129 km (0.044 R)
• M5: 12,556,048 km (0.076 R)
• M6: 17,907,314 km (0.041 R)
• M7: 18,349,675 km (0.078 R)
• M8: 20,833,598 km (0.099 R)
• M9: 23,357,464 km (0.107 R)
• M10: 32,463,785 km (0.088 R)
• M11: 42,495,220 km (0.042 R)

Planet 9 - Ice Giant

Semi-Major Axis: 9.93 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 988.1

Radius: 3.6

Gravity: 76.24 G

Time & Orbit

Eccentricity (e): 0.147

Orbit Range: 8.47 AU - 11.39 AU

Year: 20527 Days

Day: 16.9 Hours

Environment

Temp: -220 °C

Axial Tilt: 9.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 87,476,704 km

• M1: 48,171 km (0.101 R)
• M2: 211,531 km (0.101 R)
• M3: 437,574 km (0.036 R)
• M4: 1,193,941 km (0.11 R)
• M5: 1,882,988 km (0.096 R)
• M6: 2,266,557 km (0.063 R)
• M7: 3,273,351 km (0.054 R)
• M8: 5,073,163 km (0.079 R)
• M9: 9,356,000 km (0.083 R)
• M10: 12,056,840 km (0.089 R)
• M11: 15,072,584 km (0.089 R)
• M12: 22,220,669 km (0.113 R)
• M13: 27,294,281 km (0.105 R)
• M14: 28,891,986 km (0.097 R)
• M15: 30,033,867 km (0.067 R)
• M16: 37,225,934 km (0.113 R)
• M17: 38,729,094 km (0.074 R)
• M18: 50,218,060 km (0.102 R)
• M19: 52,423,283 km (0.108 R)
• M20: 52,609,831 km (0.091 R)
• M21: 57,222,831 km (0.12 R)
• M22: 68,349,173 km (0.095 R)
• M23: 69,243,020 km (0.11 R)
• M24: 71,282,637 km (0.12 R)
• M25: 73,128,825 km (0.074 R)
• M26: 77,883,494 km (0.119 R)
• M27: 81,832,279 km (0.066 R)

Kuiper Belt

Range: 30 - 56 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 175 - 11,736 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit