🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.62 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 1.23 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 471.5

Radius: 12.8

Gravity: 2.88 G

Time & Orbit

Eccentricity (e): 0.227

Orbit Range: 0.95 AU - 1.51 AU

Year: 881 Days

Day: 8.4 Hours

Environment

Temp: -174 °C

Axial Tilt: 38.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 43,216,753 km

• M1: 159,322 km (0.056 R)
• M2: 835,654 km (0.054 R)
• M3: 1,308,233 km (0.057 R)
• M4: 1,899,145 km (0.089 R)
• M5: 2,323,853 km (0.104 R)
• M6: 3,026,814 km (0.114 R)
• M7: 3,911,386 km (0.111 R)
• M8: 4,320,087 km (0.027 R)
• M9: 5,100,539 km (0.118 R)
• M10: 5,703,120 km (0.086 R)
• M11: 7,568,007 km (0.113 R)
• M12: 8,279,943 km (0.112 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.47 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 770.2

Radius: 10.5

Gravity: 6.99 G

Time & Orbit

Eccentricity (e): 0.214

Orbit Range: 1.16 AU - 1.78 AU

Year: 1151 Days

Day: 10.7 Hours

Environment

Temp: -187 °C

Axial Tilt: 16.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 43,216,753 km

• M1: 130,898 km (0.108 R)
• M2: 495,019 km (0.094 R)
• M3: 1,229,096 km (0.097 R)
• M4: 1,723,517 km (0.113 R)
• M5: 2,156,753 km (0.061 R)
• M6: 3,060,473 km (0.12 R)
• M7: 7,267,016 km (0.108 R)
• M8: 9,122,927 km (0.084 R)
• M9: 10,287,696 km (0.109 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.74 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 929.6

Radius: 8.3

Gravity: 13.49 G

Time & Orbit

Eccentricity (e): 0.013

Orbit Range: 2.7 AU - 2.78 AU

Year: 2928 Days

Day: 12.4 Hours

Environment

Temp: -200 °C

Axial Tilt: 42 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 43,216,753 km

• M1: 103,372 km (0.07 R)
• M2: 368,609 km (0.112 R)
• M3: 695,331 km (0.093 R)
• M4: 971,339 km (0.119 R)
• M5: 1,273,826 km (0.067 R)
• M6: 1,616,854 km (0.055 R)
• M7: 2,980,887 km (0.1 R)
• M8: 3,267,217 km (0.096 R)
• M9: 3,916,622 km (0.095 R)
• M10: 4,239,005 km (0.107 R)
• M11: 4,720,112 km (0.074 R)
• M12: 4,986,396 km (0.091 R)
• M13: 6,893,470 km (0.048 R)
• M14: 8,584,075 km (0.084 R)
• M15: 8,945,354 km (0.094 R)
• M16: 10,698,791 km (0.075 R)
• M17: 11,202,487 km (0.09 R)
• M18: 12,393,884 km (0.092 R)
• M19: 15,078,568 km (0.11 R)
• M20: 16,253,210 km (0.118 R)
• M21: 18,305,394 km (0.099 R)
• M22: 18,663,382 km (0.091 R)
• M23: 19,331,934 km (0.036 R)
• M24: 20,588,407 km (0.052 R)
• M25: 20,975,716 km (0.049 R)
• M26: 22,032,326 km (0.066 R)
• M27: 22,437,586 km (0.11 R)

Planet 4 - Gas Giant

Semi-Major Axis: 4.3 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 455.1

Radius: 12.5

Gravity: 2.91 G

Time & Orbit

Eccentricity (e): 0.012

Orbit Range: 4.25 AU - 4.35 AU

Year: 5757 Days

Day: 11.9 Hours

Environment

Temp: -216 °C

Axial Tilt: 15.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 43,216,753 km

• M1: 155,582 km (0.116 R)
• M2: 632,799 km (0.068 R)
• M3: 1,180,776 km (0.034 R)
• M4: 1,613,712 km (0.054 R)
• M5: 2,476,593 km (0.115 R)
• M6: 3,240,888 km (0.082 R)
• M7: 4,588,915 km (0.114 R)
• M8: 5,978,679 km (0.041 R)
• M9: 6,405,332 km (0.097 R)
• M10: 7,218,097 km (0.064 R)
• M11: 7,880,965 km (0.096 R)
• M12: 10,590,931 km (0.119 R)
• M13: 12,743,794 km (0.051 R)
• M14: 16,204,292 km (0.096 R)
• M15: 16,976,965 km (0.078 R)
• M16: 21,143,565 km (0.063 R)
• M17: 21,566,179 km (0.063 R)
• M18: 22,066,284 km (0.105 R)
• M19: 22,867,830 km (0.101 R)
• M20: 25,152,638 km (0.091 R)
• M21: 26,431,550 km (0.076 R)
• M22: 27,502,222 km (0.088 R)

Planet 5 - Ice Giant

Semi-Major Axis: 6.19 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 22.7

Radius: 4

Gravity: 1.42 G

Time & Orbit

Eccentricity (e): 0.089

Orbit Range: 5.64 AU - 6.74 AU

Year: 9944 Days

Day: 17.5 Hours

Environment

Temp: -211 °C

Axial Tilt: 17.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 43,216,753 km

• M1: 51,611 km (0.071 R)
• M2: 285,732 km (0.114 R)
• M3: 422,614 km (0.068 R)
• M4: 589,266 km (0.111 R)
• M5: 1,050,327 km (0.035 R)
• M6: 1,240,017 km (0.1 R)
• M7: 2,125,935 km (0.093 R)
• M8: 2,430,517 km (0.111 R)
• M9: 3,658,266 km (0.097 R)
• M10: 5,544,845 km (0.082 R)
• M11: 7,417,212 km (0.108 R)
• M12: 10,397,650 km (0.091 R)
• M13: 11,608,795 km (0.11 R)
• M14: 13,116,442 km (0.103 R)
• M15: 14,220,175 km (0.079 R)

Planet 6 - Ice Giant

Semi-Major Axis: 7.08 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 934.7

Radius: 3.4

Gravity: 80.86 G

Time & Orbit

Eccentricity (e): 0.109

Orbit Range: 6.31 AU - 7.85 AU

Year: 12164 Days

Day: 18.8 Hours

Environment

Temp: -225 °C

Axial Tilt: 43.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (38)

Outer Limit: 43,216,753 km

• M1: 47,123 km (0.071 R)
• M2: 339,737 km (0.108 R)
• M3: 1,011,132 km (0.036 R)
• M4: 1,488,499 km (0.066 R)
• M5: 1,743,114 km (0.12 R)
• M6: 1,970,802 km (0.092 R)
• M7: 2,198,191 km (0.083 R)
• M8: 2,750,656 km (0.082 R)
• M9: 3,260,336 km (0.106 R)
• M10: 3,390,486 km (0.075 R)
• M11: 3,745,033 km (0.049 R)
• M12: 4,559,594 km (0.075 R)
• M13: 5,858,402 km (0.112 R)
• M14: 6,327,541 km (0.068 R)
• M15: 6,612,675 km (0.093 R)
• M16: 7,655,073 km (0.104 R)
• M17: 15,763,876 km (0.111 R)
• M18: 16,667,746 km (0.115 R)
• M19: 16,821,682 km (0.098 R)
• M20: 17,210,637 km (0.073 R)
• M21: 17,526,139 km (0.109 R)
• M22: 18,087,579 km (0.11 R)
• M23: 21,075,198 km (0.073 R)
• M24: 25,074,697 km (0.119 R)
• M25: 25,889,856 km (0.042 R)
• M26: 26,933,301 km (0.098 R)
• M27: 29,215,417 km (0.081 R)
• M28: 30,345,928 km (0.108 R)
• M29: 31,623,045 km (0.045 R)
• M30: 34,035,760 km (0.105 R)
• M31: 43,589,229 km (0.075 R)
• M32: 49,685,642 km (0.113 R)
• M33: 50,969,491 km (0.088 R)
• M34: 52,770,649 km (0.058 R)
• M35: 53,102,607 km (0.054 R)
• M36: 53,436,060 km (0.104 R)
• M37: 53,770,711 km (0.102 R)
• M38: 57,897,518 km (0.116 R)

Planet 7 - Ice Giant

Semi-Major Axis: 8.89 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 171.4

Radius: 7.3

Gravity: 3.22 G

Time & Orbit

Eccentricity (e): 0.075

Orbit Range: 8.22 AU - 9.56 AU

Year: 17115 Days

Day: 18.1 Hours

Environment

Temp: -233 °C

Axial Tilt: 8.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 43,216,753 km

• M1: 92,601 km (0.096 R)
• M2: 484,548 km (0.084 R)
• M3: 1,068,278 km (0.061 R)
• M4: 1,741,319 km (0.086 R)
• M5: 2,187,869 km (0.096 R)
• M6: 3,217,850 km (0.094 R)
• M7: 5,449,252 km (0.07 R)
• M8: 7,383,852 km (0.079 R)
• M9: 7,993,613 km (0.087 R)
• M10: 15,656,913 km (0.103 R)
• M11: 18,798,768 km (0.075 R)
• M12: 22,587,932 km (0.115 R)
• M13: 29,479,906 km (0.12 R)
• M14: 30,288,782 km (0.093 R)
• M15: 37,652,737 km (0.099 R)
• M16: 38,724,755 km (0.09 R)
• M17: 40,556,432 km (0.103 R)
• M18: 43,087,478 km (0.097 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: 421 - 15,317 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit