🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.41 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.82 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 370.6

Radius: 8.7

Gravity: 4.9 G

Time & Orbit

Eccentricity (e): 0.235

Orbit Range: 0.63 AU - 1.01 AU

Year: 487 Days

Day: 10.9 Hours

Environment

Temp: -151 °C

Axial Tilt: 16.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 37,940,059 km

• M1: 108,309 km (0.083 R)
• M2: 388,057 km (0.112 R)
• M3: 668,852 km (0.113 R)
• M4: 980,315 km (0.089 R)
• M5: 1,377,647 km (0.105 R)
• M6: 1,656,198 km (0.058 R)
• M7: 1,949,410 km (0.082 R)
• M8: 2,446,224 km (0.116 R)
• M9: 2,859,563 km (0.048 R)
• M10: 3,851,846 km (0.1 R)
• M11: 4,621,527 km (0.089 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.84 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 698.3

Radius: 10.1

Gravity: 6.85 G

Time & Orbit

Eccentricity (e): 0.147

Orbit Range: 0.72 AU - 0.96 AU

Year: 505 Days

Day: 14.4 Hours

Environment

Temp: -142 °C

Axial Tilt: 36.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 37,940,059 km

• M1: 126,111 km (0.093 R)
• M2: 518,057 km (0.09 R)
• M3: 845,078 km (0.05 R)
• M4: 1,224,907 km (0.063 R)
• M5: 1,543,252 km (0.115 R)
• M6: 2,176,649 km (0.09 R)
• M7: 2,671,968 km (0.119 R)
• M8: 3,020,231 km (0.114 R)
• M9: 3,362,063 km (0.093 R)
• M10: 4,124,413 km (0.113 R)
• M11: 4,965,901 km (0.107 R)
• M12: 5,774,777 km (0.045 R)
• M13: 6,494,792 km (0.109 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.38 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 121.5

Radius: 8.5

Gravity: 1.68 G

Time & Orbit

Eccentricity (e): 0.199

Orbit Range: 1.11 AU - 1.65 AU

Year: 1063 Days

Day: 10.4 Hours

Environment

Temp: -182 °C

Axial Tilt: 38.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 37,940,059 km

• M1: 105,915 km (0.095 R)
• M2: 581,188 km (0.084 R)
• M3: 1,030,580 km (0.115 R)
• M4: 3,045,214 km (0.05 R)
• M5: 3,514,204 km (0.083 R)
• M6: 4,264,736 km (0.087 R)
• M7: 4,640,825 km (0.086 R)
• M8: 5,118,192 km (0.085 R)
• M9: 5,509,839 km (0.067 R)
• M10: 5,851,371 km (0.103 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.61 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 548.3

Radius: 8.6

Gravity: 7.41 G

Time & Orbit

Eccentricity (e): 0.121

Orbit Range: 1.42 AU - 1.8 AU

Year: 1340 Days

Day: 11.8 Hours

Environment

Temp: -177 °C

Axial Tilt: 42.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 37,940,059 km

• M1: 106,962 km (0.12 R)
• M2: 377,136 km (0.095 R)
• M3: 824,135 km (0.074 R)
• M4: 1,187,508 km (0.106 R)
• M5: 2,664,188 km (0.084 R)
• M6: 3,381,809 km (0.078 R)
• M7: 3,674,273 km (0.108 R)
• M8: 4,654,887 km (0.066 R)
• M9: 4,978,767 km (0.074 R)
• M10: 5,378,941 km (0.107 R)
• M11: 5,735,882 km (0.103 R)
• M12: 6,591,282 km (0.028 R)
• M13: 7,400,906 km (0.05 R)
• M14: 8,609,806 km (0.058 R)
• M15: 9,128,612 km (0.109 R)
• M16: 9,546,289 km (0.091 R)
• M17: 10,133,461 km (0.102 R)
• M18: 10,419,940 km (0.113 R)
• M19: 10,711,806 km (0.077 R)
• M20: 11,379,910 km (0.094 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.13 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 684.6

Radius: 12.3

Gravity: 4.53 G

Time & Orbit

Eccentricity (e): 0.039

Orbit Range: 2.05 AU - 2.21 AU

Year: 2039 Days

Day: 13.5 Hours

Environment

Temp: -187 °C

Axial Tilt: 35.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 37,940,059 km

• M1: 154,385 km (0.078 R)
• M2: 901,477 km (0.095 R)
• M3: 1,354,459 km (0.093 R)
• M4: 1,806,993 km (0.07 R)
• M5: 2,221,678 km (0.081 R)
• M6: 2,995,847 km (0.097 R)
• M7: 4,526,383 km (0.091 R)
• M8: 5,604,235 km (0.081 R)
• M9: 6,065,745 km (0.118 R)
• M10: 6,658,302 km (0.104 R)
• M11: 7,431,573 km (0.088 R)
• M12: 7,989,723 km (0.083 R)
• M13: 8,387,653 km (0.117 R)
• M14: 9,323,238 km (0.097 R)
• M15: 9,903,229 km (0.111 R)
• M16: 10,435,050 km (0.115 R)
• M17: 11,098,217 km (0.076 R)
• M18: 12,145,402 km (0.094 R)
• M19: 13,642,877 km (0.094 R)
• M20: 15,213,505 km (0.096 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.86 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 146.7

Radius: 11.2

Gravity: 1.17 G

Time & Orbit

Eccentricity (e): 0.077

Orbit Range: 3.56 AU - 4.16 AU

Year: 4975 Days

Day: 8.2 Hours

Environment

Temp: -207 °C

Axial Tilt: 11.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 37,940,059 km

• M1: 139,276 km (0.091 R)
• M2: 661,372 km (0.082 R)
• M3: 1,833,322 km (0.107 R)
• M4: 2,190,113 km (0.098 R)
• M5: 2,608,239 km (0.039 R)
• M6: 3,827,312 km (0.06 R)
• M7: 5,322,543 km (0.11 R)
• M8: 7,438,006 km (0.118 R)
• M9: 8,650,347 km (0.052 R)
• M10: 9,494,229 km (0.056 R)
• M11: 10,578,215 km (0.113 R)
• M12: 12,067,312 km (0.085 R)
• M13: 13,034,014 km (0.036 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.59 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 914

Radius: 8.6

Gravity: 12.36 G

Time & Orbit

Eccentricity (e): 0.074

Orbit Range: 4.25 AU - 4.93 AU

Year: 6451 Days

Day: 10.3 Hours

Environment

Temp: -213 °C

Axial Tilt: 48.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 37,940,059 km

• M1: 107,710 km (0.104 R)
• M2: 481,256 km (0.059 R)
• M3: 821,741 km (0.109 R)
• M4: 1,570,927 km (0.077 R)
• M5: 1,879,697 km (0.09 R)
• M6: 2,162,437 km (0.091 R)
• M7: 3,038,782 km (0.11 R)
• M8: 3,546,068 km (0.096 R)
• M9: 7,193,563 km (0.056 R)
• M10: 8,013,360 km (0.056 R)
• M11: 11,351,636 km (0.108 R)
• M12: 11,871,339 km (0.06 R)
• M13: 12,680,514 km (0.088 R)
• M14: 13,583,636 km (0.04 R)
• M15: 15,835,683 km (0.09 R)
• M16: 16,157,916 km (0.113 R)
• M17: 18,254,979 km (0.092 R)
• M18: 20,375,080 km (0.108 R)
• M19: 20,833,448 km (0.035 R)
• M20: 21,612,554 km (0.106 R)
• M21: 22,572,823 km (0.1 R)
• M22: 23,478,039 km (0.078 R)
• M23: 26,158,833 km (0.089 R)
• M24: 27,341,554 km (0.059 R)
• M25: 28,845,461 km (0.041 R)
• M26: 37,313,898 km (0.101 R)
• M27: 37,885,212 km (0.102 R)
• M28: 38,462,211 km (0.066 R)

Planet 8 - Ice Giant

Semi-Major Axis: 6.2 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 331.2

Radius: 7.7

Gravity: 5.59 G

Time & Orbit

Eccentricity (e): 0.154

Orbit Range: 5.25 AU - 7.15 AU

Year: 10127 Days

Day: 19.1 Hours

Environment

Temp: -223 °C

Axial Tilt: 21.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 37,940,059 km

• M1: 108,159 km (0.11 R)
• M2: 385,065 km (0.085 R)
• M3: 645,515 km (0.119 R)
• M4: 1,201,570 km (0.08 R)
• M5: 2,059,663 km (0.113 R)
• M6: 2,323,405 km (0.096 R)
• M7: 2,628,435 km (0.073 R)
• M8: 2,879,609 km (0.09 R)
• M9: 3,613,686 km (0.041 R)
• M10: 4,281,042 km (0.113 R)
• M11: 4,658,029 km (0.105 R)
• M12: 5,027,835 km (0.093 R)
• M13: 5,729,898 km (0.062 R)
• M14: 6,706,323 km (0.114 R)
• M15: 7,672,276 km (0.06 R)
• M16: 10,779,275 km (0.057 R)
• M17: 13,132,000 km (0.045 R)
• M18: 14,697,093 km (0.07 R)
• M19: 18,402,483 km (0.101 R)
• M20: 21,191,735 km (0.115 R)
• M21: 21,578,595 km (0.09 R)
• M22: 27,409,322 km (0.11 R)
• M23: 27,776,285 km (0.11 R)
• M24: 28,239,740 km (0.074 R)
• M25: 33,998,210 km (0.089 R)
• M26: 34,528,535 km (0.048 R)
• M27: 37,713,474 km (0.071 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: 272 - 11,962 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit