🌌 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: 0.77 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 624.5

Radius: 9.3

Gravity: 7.22 G

Time & Orbit

Eccentricity (e): 0.183

Orbit Range: 0.63 AU - 0.91 AU

Year: 475 Days

Day: 12.7 Hours

Environment

Temp: -153 °C

Axial Tilt: 38.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 53,313,082 km

• M1: 115,789 km (0.066 R)
• M2: 418,575 km (0.077 R)
• M3: 716,873 km (0.049 R)
• M4: 1,149,061 km (0.068 R)
• M5: 1,486,404 km (0.083 R)
• M6: 2,029,295 km (0.046 R)
• M7: 2,461,035 km (0.092 R)
• M8: 2,942,441 km (0.07 R)
• M9: 3,449,129 km (0.09 R)
• M10: 4,218,660 km (0.066 R)
• M11: 4,772,172 km (0.032 R)
• M12: 5,114,153 km (0.114 R)
• M13: 5,726,606 km (0.096 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.03 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 297

Radius: 10.2

Gravity: 2.85 G

Time & Orbit

Eccentricity (e): 0.114

Orbit Range: 0.91 AU - 1.15 AU

Year: 735 Days

Day: 14.1 Hours

Environment

Temp: -181 °C

Axial Tilt: 20.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 53,313,082 km

• M1: 126,859 km (0.065 R)
• M2: 447,896 km (0.119 R)
• M3: 791,074 km (0.081 R)
• M4: 1,181,674 km (0.115 R)
• M5: 1,635,105 km (0.079 R)
• M6: 2,096,764 km (0.098 R)
• M7: 2,455,051 km (0.117 R)
• M8: 3,823,871 km (0.045 R)
• M9: 4,674,036 km (0.107 R)
• M10: 5,374,154 km (0.118 R)
• M11: 5,890,566 km (0.088 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.17 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 283.9

Radius: 8.2

Gravity: 4.22 G

Time & Orbit

Eccentricity (e): 0.11

Orbit Range: 1.04 AU - 1.3 AU

Year: 890 Days

Day: 10.5 Hours

Environment

Temp: -188 °C

Axial Tilt: 135.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 53,313,082 km

• M1: 102,175 km (0.093 R)
• M2: 358,885 km (0.098 R)
• M3: 767,587 km (0.072 R)
• M4: 1,049,728 km (0.105 R)
• M5: 1,341,295 km (0.117 R)
• M6: 1,750,744 km (0.097 R)
• M7: 2,667,928 km (0.068 R)
• M8: 3,458,852 km (0.12 R)
• M9: 3,750,269 km (0.099 R)
• M10: 4,174,080 km (0.108 R)
• M11: 4,551,366 km (0.088 R)
• M12: 5,168,307 km (0.113 R)
• M13: 5,639,690 km (0.098 R)
• M14: 6,790,098 km (0.099 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.78 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 41.9

Radius: 8.9

Gravity: 0.53 G

Time & Orbit

Eccentricity (e): 0.181

Orbit Range: 2.28 AU - 3.28 AU

Year: 3258 Days

Day: 8.8 Hours

Environment

Temp: -215 °C

Axial Tilt: 36.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 53,313,082 km

• M1: 134,937 km (0.077 R)
• M2: 606,919 km (0.074 R)
• M3: 2,105,440 km (0.025 R)
• M4: 2,912,222 km (0.052 R)
• M5: 4,700,664 km (0.11 R)
• M6: 5,016,017 km (0.048 R)
• M7: 7,587,604 km (0.084 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.92 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 173.8

Radius: 8.7

Gravity: 2.3 G

Time & Orbit

Eccentricity (e): 0.072

Orbit Range: 2.71 AU - 3.13 AU

Year: 3507 Days

Day: 10.8 Hours

Environment

Temp: -211 °C

Axial Tilt: 93.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 53,313,082 km

• M1: 108,159 km (0.104 R)
• M2: 396,584 km (0.086 R)
• M3: 745,147 km (0.032 R)
• M4: 1,367,175 km (0.097 R)
• M5: 1,775,577 km (0.105 R)
• M6: 2,214,946 km (0.087 R)
• M7: 3,593,490 km (0.043 R)
• M8: 5,747,550 km (0.119 R)
• M9: 6,057,667 km (0.068 R)
• M10: 6,790,098 km (0.076 R)
• M11: 8,279,345 km (0.082 R)
• M12: 8,800,095 km (0.086 R)
• M13: 10,043,103 km (0.078 R)
• M14: 10,388,824 km (0.107 R)
• M15: 10,958,642 km (0.103 R)
• M16: 12,474,069 km (0.062 R)
• M17: 13,406,213 km (0.026 R)
• M18: 14,167,517 km (0.108 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.19 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 465.3

Radius: 9.5

Gravity: 5.16 G

Time & Orbit

Eccentricity (e): 0.081

Orbit Range: 2.93 AU - 3.45 AU

Year: 4005 Days

Day: 10.5 Hours

Environment

Temp: -206 °C

Axial Tilt: 38.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 53,313,082 km

• M1: 118,182 km (0.065 R)
• M2: 425,157 km (0.116 R)
• M3: 783,594 km (0.066 R)
• M4: 1,309,580 km (0.118 R)
• M5: 1,992,793 km (0.056 R)
• M6: 2,543,613 km (0.083 R)
• M7: 2,880,507 km (0.106 R)
• M8: 4,011,617 km (0.088 R)
• M9: 4,724,750 km (0.099 R)
• M10: 5,161,575 km (0.117 R)
• M11: 5,894,754 km (0.095 R)
• M12: 6,229,555 km (0.116 R)
• M13: 7,216,452 km (0.027 R)
• M14: 8,478,011 km (0.037 R)
• M15: 11,389,933 km (0.111 R)
• M16: 12,266,726 km (0.116 R)
• M17: 13,425,212 km (0.048 R)
• M18: 15,064,057 km (0.084 R)
• M19: 15,958,502 km (0.103 R)
• M20: 17,280,948 km (0.042 R)
• M21: 17,622,629 km (0.108 R)
• M22: 18,260,814 km (0.104 R)
• M23: 19,706,827 km (0.089 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.99 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 633.9

Radius: 8.8

Gravity: 8.19 G

Time & Orbit

Eccentricity (e): 0.1

Orbit Range: 3.59 AU - 4.39 AU

Year: 5602 Days

Day: 10.7 Hours

Environment

Temp: -210 °C

Axial Tilt: 5.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 53,313,082 km

• M1: 120,277 km (0.065 R)
• M2: 557,701 km (0.085 R)
• M3: 834,008 km (0.101 R)
• M4: 1,235,978 km (0.079 R)
• M5: 1,737,878 km (0.055 R)
• M6: 3,478,300 km (0.09 R)
• M7: 3,876,978 km (0.118 R)
• M8: 4,506,337 km (0.09 R)
• M9: 5,605,582 km (0.102 R)
• M10: 6,475,194 km (0.041 R)
• M11: 6,976,646 km (0.109 R)
• M12: 8,209,333 km (0.079 R)
• M13: 8,958,369 km (0.112 R)
• M14: 9,287,036 km (0.063 R)
• M15: 10,546,799 km (0.12 R)
• M16: 11,146,986 km (0.08 R)
• M17: 11,818,681 km (0.07 R)
• M18: 15,470,514 km (0.037 R)
• M19: 16,921,165 km (0.086 R)
• M20: 17,424,113 km (0.1 R)
• M21: 22,712,547 km (0.073 R)
• M22: 23,634,968 km (0.095 R)
• M23: 25,227,587 km (0.071 R)
• M24: 29,159,916 km (0.071 R)
• M25: 29,701,311 km (0.03 R)

Planet 8 - Gas Giant

Semi-Major Axis: 4.29 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 282.5

Radius: 14.7

Gravity: 1.31 G

Time & Orbit

Eccentricity (e): 0.209

Orbit Range: 3.39 AU - 5.19 AU

Year: 6246 Days

Day: 13.4 Hours

Environment

Temp: -221 °C

Axial Tilt: 48.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 53,313,082 km

• M1: 182,809 km (0.103 R)
• M2: 775,815 km (0.106 R)
• M3: 1,462,469 km (0.112 R)
• M4: 3,380,014 km (0.108 R)
• M5: 4,777,857 km (0.111 R)
• M6: 5,635,801 km (0.063 R)
• M7: 6,779,925 km (0.077 R)
• M8: 8,003,636 km (0.059 R)
• M9: 8,723,949 km (0.05 R)
• M10: 10,129,721 km (0.094 R)
• M11: 11,191,566 km (0.07 R)
• M12: 12,232,767 km (0.107 R)
• M13: 14,403,881 km (0.074 R)
• M14: 16,193,222 km (0.083 R)
• M15: 18,370,918 km (0.08 R)
• M16: 20,079,026 km (0.087 R)
• M17: 21,275,061 km (0.066 R)
• M18: 24,847,010 km (0.102 R)
• M19: 25,683,561 km (0.109 R)

Planet 9 - Ice Giant

Semi-Major Axis: 5.88 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 85.4

Radius: 4.5

Gravity: 4.22 G

Time & Orbit

Eccentricity (e): 0.205

Orbit Range: 4.67 AU - 7.09 AU

Year: 10022 Days

Day: 19.2 Hours

Environment

Temp: -235 °C

Axial Tilt: 7.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 53,313,082 km

• M1: 55,950 km (0.084 R)
• M2: 268,229 km (0.107 R)
• M3: 506,239 km (0.083 R)
• M4: 1,753,586 km (0.102 R)
• M5: 2,178,594 km (0.12 R)
• M6: 2,508,457 km (0.117 R)
• M7: 2,836,376 km (0.113 R)
• M8: 3,323,915 km (0.079 R)
• M9: 3,699,107 km (0.082 R)
• M10: 6,038,368 km (0.067 R)
• M11: 7,746,028 km (0.048 R)
• M12: 7,915,672 km (0.115 R)
• M13: 8,583,028 km (0.103 R)
• M14: 9,287,036 km (0.119 R)
• M15: 10,068,984 km (0.098 R)
• M16: 12,305,771 km (0.11 R)
• M17: 12,676,924 km (0.112 R)
• M18: 13,934,892 km (0.112 R)
• M19: 15,648,386 km (0.113 R)
• M20: 20,118,819 km (0.101 R)
• M21: 21,223,600 km (0.094 R)
• M22: 22,505,354 km (0.12 R)
• M23: 23,837,972 km (0.062 R)
• M24: 23,981,287 km (0.092 R)

Planet 10 - Ice Giant

Semi-Major Axis: 6.5 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 694.6

Radius: 6

Gravity: 19.29 G

Time & Orbit

Eccentricity (e): 0.194

Orbit Range: 5.24 AU - 7.76 AU

Year: 11649 Days

Day: 16.9 Hours

Environment

Temp: -233 °C

Axial Tilt: 11.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 53,313,082 km

• M1: 74,649 km (0.066 R)
• M2: 422,764 km (0.083 R)
• M3: 848,070 km (0.118 R)
• M4: 1,413,700 km (0.063 R)
• M5: 1,660,686 km (0.098 R)
• M6: 1,987,857 km (0.095 R)
• M7: 2,706,225 km (0.08 R)
• M8: 3,065,709 km (0.101 R)
• M9: 8,272,912 km (0.073 R)
• M10: 8,645,411 km (0.045 R)
• M11: 9,575,161 km (0.039 R)
• M12: 9,882,136 km (0.058 R)
• M13: 11,008,608 km (0.068 R)
• M14: 14,360,348 km (0.101 R)
• M15: 15,103,850 km (0.03 R)
• M16: 16,086,708 km (0.101 R)
• M17: 18,808,940 km (0.07 R)
• M18: 19,129,229 km (0.083 R)
• M19: 20,195,264 km (0.084 R)
• M20: 20,870,549 km (0.112 R)
• M21: 22,444,917 km (0.065 R)
• M22: 24,379,666 km (0.072 R)
• M23: 27,230,552 km (0.066 R)
• M24: 29,968,792 km (0.07 R)
• M25: 30,296,112 km (0.114 R)
• M26: 30,515,722 km (0.06 R)
• M27: 36,727,474 km (0.073 R)
• M28: 39,798,120 km (0.111 R)
• M29: 40,591,737 km (0.074 R)
• M30: 46,008,825 km (0.11 R)

Kuiper Belt

Range: 30 - 54 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 175 - 15,031 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit