🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.35 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 332

Radius: 10.7

Gravity: 2.9 G

Time & Orbit

Eccentricity (e): 0.034

Orbit Range: 0.67 AU - 0.71 AU

Year: 382 Days

Day: 7.4 Hours

Environment

Temp: -149 °C

Axial Tilt: 41.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 65,280,237 km

• M1: 133,142 km (0.101 R)
• M2: 546,481 km (0.094 R)
• M3: 1,317,658 km (0.116 R)
• M4: 2,082,253 km (0.107 R)
• M5: 2,665,984 km (0.066 R)
• M6: 3,303,869 km (0.092 R)
• M7: 4,076,692 km (0.06 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.06 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 107.8

Radius: 9.8

Gravity: 1.12 G

Time & Orbit

Eccentricity (e): 0.116

Orbit Range: 0.94 AU - 1.18 AU

Year: 728 Days

Day: 10.3 Hours

Environment

Temp: -188 °C

Axial Tilt: 20 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 65,280,237 km

• M1: 121,922 km (0.116 R)
• M2: 586,274 km (0.105 R)
• M3: 1,014,124 km (0.117 R)
• M4: 1,327,232 km (0.12 R)
• M5: 1,746,406 km (0.094 R)
• M6: 2,506,662 km (0.109 R)
• M7: 3,042,073 km (0.116 R)
• M8: 3,550,705 km (0.111 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.19 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 816.3

Radius: 10.7

Gravity: 7.13 G

Time & Orbit

Eccentricity (e): 0.045

Orbit Range: 1.14 AU - 1.24 AU

Year: 866 Days

Day: 11.6 Hours

Environment

Temp: -181 °C

Axial Tilt: 2.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 65,280,237 km

• M1: 133,142 km (0.117 R)
• M2: 1,033,123 km (0.073 R)
• M3: 1,396,646 km (0.116 R)
• M4: 1,893,311 km (0.11 R)
• M5: 2,316,523 km (0.101 R)
• M6: 2,992,406 km (0.063 R)
• M7: 3,527,368 km (0.11 R)
• M8: 4,028,820 km (0.072 R)
• M9: 4,440,065 km (0.107 R)
• M10: 5,366,674 km (0.097 R)
• M11: 5,763,408 km (0.102 R)
• M12: 6,439,291 km (0.078 R)
• M13: 7,190,721 km (0.114 R)
• M14: 8,786,631 km (0.059 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.52 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 28.3

Radius: 11

Gravity: 0.23 G

Time & Orbit

Eccentricity (e): 0.193

Orbit Range: 1.23 AU - 1.81 AU

Year: 1250 Days

Day: 11.1 Hours

Environment

Temp: -186 °C

Axial Tilt: 45 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 65,280,237 km

• M1: 233,522 km (0.085 R)
• M2: 806,781 km (0.103 R)
• M3: 1,740,122 km (0.102 R)
• M4: 2,111,424 km (0.102 R)
• M5: 2,587,744 km (0.117 R)
• M6: 3,327,206 km (0.058 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.11 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 742.9

Radius: 13.7

Gravity: 3.96 G

Time & Orbit

Eccentricity (e): 0.152

Orbit Range: 1.79 AU - 2.43 AU

Year: 2044 Days

Day: 13.4 Hours

Environment

Temp: -197 °C

Axial Tilt: 22 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 65,280,237 km

• M1: 173,384 km (0.09 R)
• M2: 613,650 km (0.11 R)
• M3: 1,041,201 km (0.107 R)
• M4: 1,795,623 km (0.113 R)
• M5: 2,508,158 km (0.062 R)
• M6: 3,386,447 km (0.093 R)
• M7: 4,563,633 km (0.076 R)
• M8: 6,098,208 km (0.101 R)
• M9: 6,942,688 km (0.108 R)
• M10: 7,684,992 km (0.039 R)
• M11: 11,081,612 km (0.104 R)
• M12: 12,217,509 km (0.095 R)
• M13: 13,087,570 km (0.106 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.83 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 881.5

Radius: 14.7

Gravity: 4.08 G

Time & Orbit

Eccentricity (e): 0.241

Orbit Range: 2.15 AU - 3.51 AU

Year: 3175 Days

Day: 5 Hours

Environment

Temp: -214 °C

Axial Tilt: 25.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 65,280,237 km

• M1: 185,352 km (0.111 R)
• M2: 667,356 km (0.076 R)
• M3: 1,189,004 km (0.112 R)
• M4: 1,747,154 km (0.116 R)
• M5: 2,845,950 km (0.07 R)
• M6: 3,339,623 km (0.078 R)
• M7: 4,572,309 km (0.083 R)
• M8: 5,204,211 km (0.097 R)
• M9: 6,061,855 km (0.114 R)
• M10: 7,425,290 km (0.12 R)
• M11: 7,922,703 km (0.075 R)
• M12: 11,698,404 km (0.088 R)
• M13: 13,508,688 km (0.098 R)
• M14: 14,711,754 km (0.085 R)
• M15: 15,233,701 km (0.072 R)
• M16: 16,649,046 km (0.102 R)
• M17: 21,957,227 km (0.115 R)
• M18: 23,195,898 km (0.083 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.46 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 651.8

Radius: 11.9

Gravity: 4.6 G

Time & Orbit

Eccentricity (e): 0.23

Orbit Range: 2.66 AU - 4.26 AU

Year: 4292 Days

Day: 11.1 Hours

Environment

Temp: -216 °C

Axial Tilt: 32.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 65,280,237 km

• M1: 149,897 km (0.08 R)
• M2: 526,136 km (0.112 R)
• M3: 1,282,054 km (0.093 R)
• M4: 1,706,164 km (0.108 R)
• M5: 2,268,951 km (0.098 R)
• M6: 2,899,955 km (0.052 R)
• M7: 3,542,926 km (0.051 R)
• M8: 4,858,041 km (0.086 R)
• M9: 5,245,949 km (0.082 R)
• M10: 5,710,899 km (0.115 R)
• M11: 6,383,640 km (0.12 R)
• M12: 7,576,085 km (0.073 R)
• M13: 8,064,073 km (0.086 R)
• M14: 8,684,904 km (0.084 R)
• M15: 9,220,016 km (0.101 R)
• M16: 9,899,041 km (0.103 R)
• M17: 11,223,131 km (0.117 R)
• M18: 12,422,009 km (0.082 R)
• M19: 13,201,115 km (0.116 R)
• M20: 13,960,772 km (0.093 R)
• M21: 16,763,339 km (0.066 R)
• M22: 20,718,408 km (0.074 R)
• M23: 24,420,057 km (0.119 R)
• M24: 25,720,063 km (0.109 R)

Planet 8 - Ice Giant

Semi-Major Axis: 5.77 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 185

Radius: 3.5

Gravity: 15.1 G

Time & Orbit

Eccentricity (e): 0.119

Orbit Range: 5.08 AU - 6.46 AU

Year: 9243 Days

Day: 16.9 Hours

Environment

Temp: -220 °C

Axial Tilt: 33.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 65,280,237 km

• M1: 43,533 km (0.109 R)
• M2: 217,665 km (0.086 R)
• M3: 454,478 km (0.117 R)
• M4: 654,042 km (0.104 R)
• M5: 868,266 km (0.096 R)
• M6: 1,470,996 km (0.06 R)
• M7: 2,126,534 km (0.058 R)
• M8: 2,826,951 km (0.096 R)
• M9: 3,229,369 km (0.117 R)
• M10: 7,666,741 km (0.077 R)
• M11: 9,686,911 km (0.117 R)
• M12: 13,134,095 km (0.091 R)
• M13: 13,707,802 km (0.075 R)
• M14: 14,081,348 km (0.064 R)
• M15: 14,626,782 km (0.097 R)
• M16: 15,299,823 km (0.061 R)
• M17: 16,526,675 km (0.108 R)

Planet 9 - Ice Giant

Semi-Major Axis: 6.83 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 673.8

Radius: 5.3

Gravity: 23.99 G

Time & Orbit

Eccentricity (e): 0.238

Orbit Range: 5.2 AU - 8.46 AU

Year: 11903 Days

Day: 20.4 Hours

Environment

Temp: -227 °C

Axial Tilt: 14.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 65,280,237 km

• M1: 67,618 km (0.079 R)
• M2: 246,388 km (0.065 R)
• M3: 426,952 km (0.072 R)
• M4: 777,759 km (0.117 R)
• M5: 1,072,318 km (0.103 R)
• M6: 1,970,204 km (0.068 R)
• M7: 2,205,073 km (0.111 R)
• M8: 2,774,592 km (0.109 R)
• M9: 4,971,436 km (0.095 R)
• M10: 5,582,544 km (0.056 R)
• M11: 6,242,420 km (0.105 R)
• M12: 7,937,364 km (0.08 R)
• M13: 8,962,857 km (0.032 R)
• M14: 11,732,512 km (0.069 R)
• M15: 13,887,918 km (0.071 R)
• M16: 17,253,870 km (0.037 R)
• M17: 18,251,090 km (0.111 R)
• M18: 20,698,212 km (0.063 R)
• M19: 22,088,574 km (0.095 R)
• M20: 26,431,251 km (0.027 R)
• M21: 27,754,444 km (0.063 R)
• M22: 28,065,907 km (0.086 R)
• M23: 37,891,495 km (0.068 R)
• M24: 39,571,479 km (0.09 R)
• M25: 40,098,213 km (0.097 R)
• M26: 40,629,585 km (0.055 R)
• M27: 45,914,279 km (0.059 R)
• M28: 46,641,923 km (0.062 R)
• M29: 48,871,231 km (0.067 R)
• M30: 53,061,318 km (0.108 R)

Planet 10 - Ice Giant

Semi-Major Axis: 7.47 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 933.5

Radius: 3.6

Gravity: 72.03 G

Time & Orbit

Eccentricity (e): 0.241

Orbit Range: 5.67 AU - 9.27 AU

Year: 13615 Days

Day: 16.9 Hours

Environment

Temp: -225 °C

Axial Tilt: 32.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 65,280,237 km

• M1: 44,879 km (0.114 R)
• M2: 536,009 km (0.093 R)
• M3: 648,956 km (0.097 R)
• M4: 1,113,756 km (0.037 R)
• M5: 2,410,470 km (0.105 R)
• M6: 2,563,808 km (0.083 R)
• M7: 6,029,093 km (0.1 R)
• M8: 6,861,007 km (0.034 R)
• M9: 7,349,893 km (0.076 R)
• M10: 7,487,074 km (0.068 R)
• M11: 8,800,544 km (0.114 R)
• M12: 11,810,752 km (0.073 R)
• M13: 13,442,715 km (0.091 R)
• M14: 14,634,561 km (0.083 R)
• M15: 15,517,039 km (0.104 R)
• M16: 16,669,392 km (0.067 R)
• M17: 18,460,826 km (0.093 R)
• M18: 20,647,498 km (0.117 R)
• M19: 24,090,643 km (0.041 R)
• M20: 25,526,932 km (0.079 R)
• M21: 26,802,553 km (0.087 R)
• M22: 28,908,293 km (0.067 R)
• M23: 29,136,130 km (0.074 R)
• M24: 34,585,382 km (0.107 R)
• M25: 35,620,151 km (0.073 R)
• M26: 37,210,974 km (0.103 R)
• M27: 38,434,535 km (0.088 R)
• M28: 40,961,842 km (0.112 R)
• M29: 44,652,571 km (0.076 R)
• M30: 45,570,204 km (0.113 R)
• M31: 48,078,512 km (0.042 R)
• M32: 50,019,095 km (0.111 R)
• M33: 61,256,139 km (0.051 R)
• M34: 61,820,572 km (0.113 R)
• M35: 62,009,514 km (0.115 R)
• M36: 64,694,946 km (0.112 R)

Kuiper Belt

Range: 30 - 60 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 200 - 14,286 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit