🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.29 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.58 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.06

Radius: 1.34

Gravity: 1.15 G

Time & Orbit

Eccentricity (e): 0.167

Orbit Range: 0.48 AU - 0.68 AU

Year: 290 Days

Day: 12.5 Hours

Environment

Temp: -132 °C

Axial Tilt: 23.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Terrestrial

Semi-Major Axis: 0.67 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.9

Radius: 1.29

Gravity: 1.14 G

Time & Orbit

Eccentricity (e): 0.161

Orbit Range: 0.56 AU - 0.78 AU

Year: 360 Days

Day: 44.9 Hours

Environment

Temp: -139 °C

Axial Tilt: 33.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 82,652,571 km

• M1: 323,431 km (0.097 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.78 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 747.6

Radius: 11.6

Gravity: 5.56 G

Time & Orbit

Eccentricity (e): 0.183

Orbit Range: 0.64 AU - 0.92 AU

Year: 452 Days

Day: 14.8 Hours

Environment

Temp: -137 °C

Axial Tilt: 39.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 82,652,571 km

• M1: 144,362 km (0.109 R)
• M2: 512,672 km (0.045 R)
• M3: 922,720 km (0.118 R)
• M4: 1,432,699 km (0.095 R)
• M5: 1,801,009 km (0.098 R)
• M6: 2,693,958 km (0.105 R)
• M7: 3,125,997 km (0.035 R)
• M8: 3,516,896 km (0.059 R)
• M9: 4,158,372 km (0.094 R)
• M10: 5,727,055 km (0.059 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 809.1

Radius: 11.5

Gravity: 6.12 G

Time & Orbit

Eccentricity (e): 0.169

Orbit Range: 1.5 AU - 2.1 AU

Year: 1584 Days

Day: 9.9 Hours

Environment

Temp: -191 °C

Axial Tilt: 16.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 82,652,571 km

• M1: 147,055 km (0.111 R)
• M2: 576,550 km (0.086 R)
• M3: 1,262,905 km (0.078 R)
• M4: 2,208,813 km (0.031 R)
• M5: 2,574,131 km (0.032 R)
• M6: 3,477,851 km (0.11 R)
• M7: 3,887,151 km (0.104 R)
• M8: 5,053,865 km (0.061 R)
• M9: 5,445,961 km (0.095 R)
• M10: 6,291,638 km (0.075 R)
• M11: 6,720,535 km (0.098 R)
• M12: 7,304,415 km (0.072 R)
• M13: 8,243,591 km (0.111 R)
• M14: 8,788,875 km (0.115 R)
• M15: 11,324,260 km (0.105 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.96 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 994.9

Radius: 12.2

Gravity: 6.68 G

Time & Orbit

Eccentricity (e): 0.228

Orbit Range: 1.51 AU - 2.41 AU

Year: 1800 Days

Day: 13.7 Hours

Environment

Temp: -194 °C

Axial Tilt: 30 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 82,652,571 km

• M1: 151,842 km (0.076 R)
• M2: 536,458 km (0.109 R)
• M3: 978,968 km (0.092 R)
• M4: 1,921,435 km (0.056 R)
• M5: 2,793,291 km (0.083 R)
• M6: 3,295,192 km (0.102 R)
• M7: 3,856,932 km (0.12 R)
• M8: 5,173,693 km (0.092 R)
• M9: 5,811,578 km (0.117 R)
• M10: 8,229,828 km (0.112 R)
• M11: 9,924,772 km (0.114 R)
• M12: 11,841,719 km (0.048 R)
• M13: 12,491,123 km (0.106 R)
• M14: 13,684,465 km (0.11 R)
• M15: 14,952,307 km (0.108 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.21 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 802.1

Radius: 13

Gravity: 4.75 G

Time & Orbit

Eccentricity (e): 0.067

Orbit Range: 2.99 AU - 3.43 AU

Year: 3773 Days

Day: 6.3 Hours

Environment

Temp: -203 °C

Axial Tilt: 38.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 82,652,571 km

• M1: 163,510 km (0.101 R)
• M2: 581,188 km (0.066 R)
• M3: 988,992 km (0.039 R)
• M4: 1,447,060 km (0.025 R)
• M5: 1,864,887 km (0.107 R)
• M6: 2,663,889 km (0.084 R)
• M7: 3,341,568 km (0.057 R)
• M8: 4,020,742 km (0.06 R)
• M9: 5,171,898 km (0.05 R)
• M10: 5,712,095 km (0.098 R)
• M11: 6,811,341 km (0.08 R)
• M12: 8,368,954 km (0.108 R)
• M13: 9,154,193 km (0.1 R)
• M14: 9,744,805 km (0.12 R)
• M15: 11,177,953 km (0.103 R)
• M16: 11,715,907 km (0.117 R)
• M17: 12,177,416 km (0.083 R)
• M18: 13,534,568 km (0.102 R)
• M19: 15,152,320 km (0.038 R)
• M20: 15,756,246 km (0.114 R)
• M21: 17,604,977 km (0.109 R)
• M22: 19,083,602 km (0.076 R)
• M23: 20,844,219 km (0.091 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.68 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 687

Radius: 3.5

Gravity: 56.08 G

Time & Orbit

Eccentricity (e): 0.196

Orbit Range: 5.37 AU - 7.99 AU

Year: 11326 Days

Day: 16.3 Hours

Environment

Temp: -224 °C

Axial Tilt: 167.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 82,652,571 km

• M1: 47,123 km (0.073 R)
• M2: 719,566 km (0.118 R)
• M3: 969,693 km (0.105 R)
• M4: 1,380,788 km (0.097 R)
• M5: 1,915,451 km (0.113 R)
• M6: 3,452,719 km (0.093 R)
• M7: 3,712,870 km (0.049 R)
• M8: 4,213,873 km (0.1 R)
• M9: 7,624,106 km (0.076 R)
• M10: 8,291,312 km (0.035 R)
• M11: 14,614,066 km (0.094 R)
• M12: 15,921,253 km (0.12 R)
• M13: 17,304,285 km (0.092 R)
• M14: 18,140,537 km (0.082 R)
• M15: 23,180,938 km (0.104 R)
• M16: 24,478,101 km (0.11 R)
• M17: 25,530,672 km (0.098 R)
• M18: 25,725,149 km (0.082 R)
• M19: 29,934,833 km (0.067 R)
• M20: 35,661,589 km (0.1 R)
• M21: 35,904,686 km (0.089 R)
• M22: 43,445,615 km (0.095 R)
• M23: 51,664,672 km (0.09 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.21 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 589.3

Radius: 7.2

Gravity: 11.37 G

Time & Orbit

Eccentricity (e): 0.092

Orbit Range: 6.55 AU - 7.87 AU

Year: 12700 Days

Day: 19.5 Hours

Environment

Temp: -219 °C

Axial Tilt: 47.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 82,652,571 km

• M1: 90,507 km (0.078 R)
• M2: 320,738 km (0.099 R)
• M3: 713,881 km (0.075 R)
• M4: 1,082,789 km (0.072 R)
• M5: 2,437,249 km (0.07 R)
• M6: 2,727,917 km (0.092 R)
• M7: 3,795,148 km (0.047 R)
• M8: 4,824,681 km (0.079 R)
• M9: 5,284,694 km (0.105 R)
• M10: 6,922,641 km (0.06 R)
• M11: 8,400,968 km (0.09 R)
• M12: 8,969,589 km (0.096 R)
• M13: 9,665,219 km (0.05 R)
• M14: 10,289,491 km (0.113 R)
• M15: 10,995,743 km (0.068 R)
• M16: 11,389,335 km (0.099 R)
• M17: 13,627,020 km (0.099 R)
• M18: 15,088,142 km (0.096 R)
• M19: 20,597,981 km (0.084 R)
• M20: 24,172,772 km (0.107 R)
• M21: 25,320,936 km (0.104 R)
• M22: 32,521,979 km (0.056 R)
• M23: 33,566,770 km (0.099 R)
• M24: 34,633,852 km (0.086 R)
• M25: 35,115,407 km (0.105 R)
• M26: 35,845,894 km (0.08 R)
• M27: 36,214,952 km (0.09 R)
• M28: 37,085,911 km (0.09 R)
• M29: 39,389,568 km (0.112 R)
• M30: 40,576,328 km (0.113 R)
• M31: 43,159,883 km (0.085 R)
• M32: 43,997,931 km (0.108 R)
• M33: 48,651,920 km (0.073 R)
• M34: 49,559,680 km (0.068 R)
• M35: 49,864,710 km (0.079 R)

Planet 9 - Ice Giant

Semi-Major Axis: 8.07 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 667.1

Radius: 5.9

Gravity: 19.16 G

Time & Orbit

Eccentricity (e): 0.138

Orbit Range: 6.96 AU - 9.18 AU

Year: 15039 Days

Day: 17 Hours

Environment

Temp: -219 °C

Axial Tilt: 14.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 82,652,571 km

• M1: 137,480 km (0.069 R)
• M2: 338,241 km (0.08 R)
• M3: 2,001,919 km (0.116 R)
• M4: 2,744,223 km (0.089 R)
• M5: 3,740,096 km (0.061 R)
• M6: 4,060,086 km (0.04 R)
• M7: 4,461,607 km (0.109 R)
• M8: 6,458,589 km (0.03 R)
• M9: 6,665,333 km (0.054 R)
• M10: 8,832,258 km (0.067 R)
• M11: 9,035,861 km (0.101 R)
• M12: 10,212,747 km (0.114 R)
• M13: 13,936,238 km (0.091 R)
• M14: 15,798,283 km (0.054 R)
• M15: 17,418,428 km (0.11 R)
• M16: 20,271,259 km (0.093 R)
• M17: 23,910,078 km (0.096 R)
• M18: 26,882,139 km (0.086 R)
• M19: 35,434,500 km (0.109 R)
• M20: 38,463,857 km (0.091 R)
• M21: 48,896,812 km (0.102 R)
• M22: 49,695,365 km (0.118 R)
• M23: 52,309,439 km (0.091 R)

Planet 10 - Ice Giant

Semi-Major Axis: 10.93 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 625

Radius: 4

Gravity: 39.06 G

Time & Orbit

Eccentricity (e): 0.061

Orbit Range: 10.26 AU - 11.6 AU

Year: 23705 Days

Day: 16.1 Hours

Environment

Temp: -242 °C

Axial Tilt: 26.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (38)

Outer Limit: 82,652,571 km

• M1: 52,958 km (0.054 R)
• M2: 214,972 km (0.091 R)
• M3: 598,541 km (0.069 R)
• M4: 1,220,419 km (0.107 R)
• M5: 1,451,847 km (0.05 R)
• M6: 1,748,949 km (0.109 R)
• M7: 2,002,517 km (0.07 R)
• M8: 2,510,551 km (0.104 R)
• M9: 5,025,441 km (0.093 R)
• M10: 5,257,468 km (0.109 R)
• M11: 6,617,312 km (0.083 R)
• M12: 7,427,385 km (0.096 R)
• M13: 8,791,119 km (0.097 R)
• M14: 9,887,372 km (0.091 R)
• M15: 10,878,757 km (0.089 R)
• M16: 11,136,514 km (0.081 R)
• M17: 11,266,964 km (0.071 R)
• M18: 15,027,405 km (0.036 R)
• M19: 17,891,905 km (0.11 R)
• M20: 22,944,573 km (0.064 R)
• M21: 24,123,105 km (0.081 R)
• M22: 24,561,427 km (0.049 R)
• M23: 26,483,760 km (0.089 R)
• M24: 27,899,554 km (0.114 R)
• M25: 28,748,372 km (0.032 R)
• M26: 29,739,309 km (0.053 R)
• M27: 33,386,804 km (0.095 R)
• M28: 38,649,059 km (0.099 R)
• M29: 41,711,178 km (0.104 R)
• M30: 43,948,264 km (0.081 R)
• M31: 44,766,265 km (0.054 R)
• M32: 45,427,937 km (0.087 R)
• M33: 50,420,915 km (0.09 R)
• M34: 57,500,485 km (0.081 R)
• M35: 64,162,078 km (0.067 R)
• M36: 67,786,236 km (0.079 R)
• M37: 70,871,393 km (0.115 R)
• M38: 81,174,647 km (0.119 R)

Kuiper Belt

Range: 30 - 50 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 523 - 14,878 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit