🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.26 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.51 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.32

Radius: 1.8

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.209

Orbit Range: 0.4 AU - 0.62 AU

Year: 239 Days

Day: 32.2 Hours

Environment

Temp: -115 °C

Axial Tilt: 26.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 55,340,725 km

• M1: 375,790 km (0.098 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.57 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.19

Radius: 1.77

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.155

Orbit Range: 0.48 AU - 0.66 AU

Year: 282 Days

Day: 41.6 Hours

Environment

Temp: -124 °C

Axial Tilt: 23 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Gas Giant

Semi-Major Axis: 0.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 608.1

Radius: 10.4

Gravity: 5.62 G

Time & Orbit

Eccentricity (e): 0.165

Orbit Range: 0.58 AU - 0.8 AU

Year: 376 Days

Day: 11.7 Hours

Environment

Temp: -143 °C

Axial Tilt: 22.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 55,340,725 km

• M1: 129,402 km (0.056 R)
• M2: 626,366 km (0.09 R)
• M3: 1,354,160 km (0.112 R)
• M4: 2,074,324 km (0.088 R)
• M5: 2,475,845 km (0.111 R)
• M6: 4,316,347 km (0.089 R)
• M7: 4,645,313 km (0.086 R)
• M8: 5,065,234 km (0.063 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.82 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 824.2

Radius: 11.4

Gravity: 6.34 G

Time & Orbit

Eccentricity (e): 0.087

Orbit Range: 0.75 AU - 0.89 AU

Year: 487 Days

Day: 13.8 Hours

Environment

Temp: -156 °C

Axial Tilt: 38 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 55,340,725 km

• M1: 141,819 km (0.102 R)
• M2: 789,877 km (0.053 R)
• M3: 1,178,532 km (0.109 R)
• M4: 1,846,636 km (0.108 R)
• M5: 2,207,765 km (0.12 R)
• M6: 2,700,092 km (0.117 R)
• M7: 3,337,977 km (0.102 R)
• M8: 4,556,452 km (0.083 R)
• M9: 5,175,638 km (0.103 R)
• M10: 6,660,995 km (0.1 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.21 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 463.9

Radius: 10.4

Gravity: 4.29 G

Time & Orbit

Eccentricity (e): 0.215

Orbit Range: 0.95 AU - 1.47 AU

Year: 873 Days

Day: 10.6 Hours

Environment

Temp: -175 °C

Axial Tilt: 18.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 55,340,725 km

• M1: 129,402 km (0.078 R)
• M2: 487,988 km (0.075 R)
• M3: 857,645 km (0.091 R)
• M4: 1,236,726 km (0.119 R)
• M5: 1,812,827 km (0.082 R)
• M6: 2,188,018 km (0.099 R)
• M7: 2,538,526 km (0.082 R)
• M8: 2,914,615 km (0.065 R)
• M9: 3,852,444 km (0.112 R)
• M10: 4,367,809 km (0.069 R)
• M11: 5,686,963 km (0.049 R)
• M12: 6,397,254 km (0.098 R)
• M13: 7,143,598 km (0.064 R)
• M14: 7,480,642 km (0.096 R)

Planet 6 - Ice Giant

Semi-Major Axis: 6.57 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 587.1

Radius: 4.3

Gravity: 31.75 G

Time & Orbit

Eccentricity (e): 0.035

Orbit Range: 6.34 AU - 6.8 AU

Year: 11047 Days

Day: 19.6 Hours

Environment

Temp: -231 °C

Axial Tilt: 7.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 55,340,725 km

• M1: 63,429 km (0.086 R)
• M2: 214,224 km (0.083 R)
• M3: 371,302 km (0.081 R)
• M4: 599,738 km (0.112 R)
• M5: 812,915 km (0.052 R)
• M6: 1,010,085 km (0.115 R)
• M7: 1,313,918 km (0.118 R)
• M8: 2,321,161 km (0.119 R)
• M9: 2,575,776 km (0.109 R)
• M10: 3,164,145 km (0.047 R)
• M11: 4,453,080 km (0.099 R)
• M12: 5,003,600 km (0.116 R)
• M13: 5,196,880 km (0.113 R)
• M14: 9,438,878 km (0.109 R)
• M15: 9,784,000 km (0.108 R)
• M16: 10,188,662 km (0.119 R)
• M17: 12,914,485 km (0.114 R)
• M18: 13,278,457 km (0.117 R)
• M19: 15,336,026 km (0.089 R)
• M20: 15,950,873 km (0.103 R)
• M21: 18,422,379 km (0.071 R)
• M22: 19,116,962 km (0.087 R)
• M23: 20,970,929 km (0.111 R)
• M24: 21,389,204 km (0.083 R)
• M25: 23,029,844 km (0.044 R)
• M26: 23,385,588 km (0.101 R)
• M27: 24,107,996 km (0.107 R)
• M28: 25,692,537 km (0.096 R)
• M29: 31,075,966 km (0.033 R)
• M30: 31,510,398 km (0.081 R)
• M31: 35,485,513 km (0.07 R)
• M32: 36,318,623 km (0.056 R)
• M33: 37,531,413 km (0.045 R)
• M34: 40,551,794 km (0.098 R)
• M35: 44,002,269 km (0.119 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.97 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 166.2

Radius: 3

Gravity: 18.47 G

Time & Orbit

Eccentricity (e): 0.148

Orbit Range: 6.79 AU - 9.15 AU

Year: 14760 Days

Day: 18.6 Hours

Environment

Temp: -236 °C

Axial Tilt: 11.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 55,340,725 km

• M1: 41,887 km (0.091 R)
• M2: 484,248 km (0.094 R)
• M3: 807,978 km (0.084 R)
• M4: 1,305,989 km (0.09 R)
• M5: 1,828,834 km (0.101 R)
• M6: 2,844,903 km (0.057 R)
• M7: 3,073,039 km (0.104 R)
• M8: 5,083,336 km (0.09 R)
• M9: 5,264,648 km (0.112 R)
• M10: 5,481,565 km (0.066 R)
• M11: 5,576,261 km (0.115 R)
• M12: 6,910,075 km (0.078 R)
• M13: 10,139,744 km (0.076 R)
• M14: 10,917,802 km (0.101 R)
• M15: 11,839,774 km (0.113 R)
• M16: 17,851,963 km (0.094 R)
• M17: 18,270,687 km (0.09 R)
• M18: 19,713,259 km (0.092 R)
• M19: 21,778,757 km (0.051 R)
• M20: 22,660,038 km (0.101 R)
• M21: 22,822,801 km (0.025 R)
• M22: 25,358,634 km (0.051 R)
• M23: 26,784,751 km (0.062 R)
• M24: 27,058,066 km (0.108 R)
• M25: 27,610,082 km (0.119 R)
• M26: 28,641,709 km (0.074 R)
• M27: 30,285,939 km (0.072 R)

Planet 8 - Ice Giant

Semi-Major Axis: 8.04 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 610.4

Radius: 6.9

Gravity: 12.82 G

Time & Orbit

Eccentricity (e): 0.002

Orbit Range: 8.02 AU - 8.06 AU

Year: 14955 Days

Day: 17.9 Hours

Environment

Temp: -229 °C

Axial Tilt: 16.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 55,340,725 km

• M1: 92,900 km (0.109 R)
• M2: 314,455 km (0.08 R)
• M3: 620,083 km (0.118 R)
• M4: 982,559 km (0.074 R)
• M5: 3,339,174 km (0.104 R)
• M6: 4,146,853 km (0.114 R)
• M7: 6,142,189 km (0.066 R)
• M8: 8,170,437 km (0.066 R)
• M9: 10,949,966 km (0.076 R)
• M10: 14,511,143 km (0.081 R)
• M11: 15,508,961 km (0.11 R)
• M12: 16,781,141 km (0.082 R)
• M13: 18,202,471 km (0.05 R)
• M14: 18,693,451 km (0.082 R)
• M15: 19,277,481 km (0.088 R)
• M16: 20,570,006 km (0.104 R)
• M17: 23,326,347 km (0.041 R)
• M18: 25,193,927 km (0.097 R)
• M19: 26,527,742 km (0.101 R)
• M20: 29,335,394 km (0.097 R)
• M21: 31,625,439 km (0.069 R)
• M22: 32,335,131 km (0.095 R)
• M23: 34,527,637 km (0.078 R)
• M24: 35,279,965 km (0.106 R)
• M25: 36,043,213 km (0.106 R)
• M26: 37,339,629 km (0.12 R)
• M27: 38,265,490 km (0.044 R)
• M28: 38,666,861 km (0.097 R)
• M29: 39,342,146 km (0.104 R)
• M30: 53,712,068 km (0.091 R)
• M31: 54,383,763 km (0.088 R)
• M32: 56,259,870 km (0.081 R)
• M33: 58,355,287 km (0.088 R)

Planet 9 - Ice Giant

Semi-Major Axis: 8.14 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 720.8

Radius: 3.9

Gravity: 47.39 G

Time & Orbit

Eccentricity (e): 0.058

Orbit Range: 7.67 AU - 8.61 AU

Year: 15235 Days

Day: 18.4 Hours

Environment

Temp: -217 °C

Axial Tilt: 6.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 55,340,725 km

• M1: 49,816 km (0.11 R)
• M2: 382,522 km (0.113 R)
• M3: 512,223 km (0.081 R)
• M4: 1,842,896 km (0.11 R)
• M5: 2,202,081 km (0.069 R)
• M6: 2,324,601 km (0.03 R)
• M7: 3,133,776 km (0.089 R)
• M8: 3,587,955 km (0.08 R)
• M9: 5,176,984 km (0.096 R)
• M10: 5,468,550 km (0.117 R)
• M11: 6,617,911 km (0.081 R)
• M12: 7,683,795 km (0.112 R)
• M13: 8,705,998 km (0.116 R)
• M14: 10,318,663 km (0.085 R)
• M15: 11,255,295 km (0.089 R)
• M16: 12,120,120 km (0.076 R)
• M17: 12,311,157 km (0.115 R)
• M18: 16,100,620 km (0.106 R)
• M19: 16,408,792 km (0.074 R)
• M20: 19,886,195 km (0.03 R)
• M21: 21,054,554 km (0.1 R)
• M22: 22,843,445 km (0.104 R)
• M23: 23,625,992 km (0.025 R)
• M24: 23,923,991 km (0.097 R)
• M25: 24,124,003 km (0.083 R)
• M26: 27,260,622 km (0.092 R)
• M27: 34,074,655 km (0.112 R)
• M28: 35,613,269 km (0.1 R)
• M29: 35,743,569 km (0.044 R)
• M30: 44,456,448 km (0.109 R)
• M31: 47,385,275 km (0.073 R)
• M32: 48,495,890 km (0.092 R)
• M33: 62,446,041 km (0.107 R)

Planet 10 - Ice Giant

Semi-Major Axis: 9.02 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 333.8

Radius: 4.1

Gravity: 19.86 G

Time & Orbit

Eccentricity (e): 0.02

Orbit Range: 8.84 AU - 9.2 AU

Year: 17771 Days

Day: 22.6 Hours

Environment

Temp: -223 °C

Axial Tilt: 35.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 55,340,725 km

• M1: 51,312 km (0.101 R)
• M2: 615,894 km (0.094 R)
• M3: 1,573,919 km (0.109 R)
• M4: 2,321,460 km (0.099 R)
• M5: 6,089,531 km (0.06 R)
• M6: 8,189,586 km (0.105 R)
• M7: 13,549,528 km (0.107 R)
• M8: 15,025,610 km (0.105 R)
• M9: 16,237,353 km (0.059 R)
• M10: 18,135,301 km (0.101 R)
• M11: 24,707,136 km (0.065 R)
• M12: 26,491,240 km (0.042 R)
• M13: 32,009,008 km (0.058 R)
• M14: 35,587,688 km (0.097 R)
• M15: 37,601,126 km (0.099 R)
• M16: 39,160,085 km (0.108 R)
• M17: 43,526,996 km (0.116 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: 248 - 10,265 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit