🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.28 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.56 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 499.3

Radius: 10.9

Gravity: 4.2 G

Time & Orbit

Eccentricity (e): 0.043

Orbit Range: 0.54 AU - 0.58 AU

Year: 279 Days

Day: 10.6 Hours

Environment

Temp: -142 °C

Axial Tilt: 11.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 14,944,045 km

• M1: 135,536 km (0.114 R)
• M2: 485,146 km (0.083 R)
• M3: 899,831 km (0.104 R)
• M4: 1,423,573 km (0.101 R)
• M5: 2,679,597 km (0.087 R)
• M6: 3,113,580 km (0.107 R)
• M7: 3,562,224 km (0.038 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.67 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 431.5

Radius: 14

Gravity: 2.2 G

Time & Orbit

Eccentricity (e): 0.089

Orbit Range: 0.61 AU - 0.73 AU

Year: 366 Days

Day: 11.9 Hours

Environment

Temp: -160 °C

Axial Tilt: 10.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 14,944,045 km

• M1: 174,132 km (0.041 R)
• M2: 708,496 km (0.088 R)
• M3: 1,408,614 km (0.1 R)
• M4: 1,902,586 km (0.091 R)
• M5: 2,419,596 km (0.115 R)
• M6: 3,050,450 km (0.105 R)
• M7: 3,608,151 km (0.112 R)
• M8: 4,334,150 km (0.116 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.68 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 357.5

Radius: 8.3

Gravity: 5.19 G

Time & Orbit

Eccentricity (e): 0.142

Orbit Range: 0.58 AU - 0.78 AU

Year: 374 Days

Day: 8.7 Hours

Environment

Temp: -155 °C

Axial Tilt: 15.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 14,944,045 km

• M1: 103,223 km (0.11 R)
• M2: 366,814 km (0.062 R)
• M3: 712,684 km (0.085 R)
• M4: 1,126,622 km (0.068 R)
• M5: 1,416,093 km (0.083 R)
• M6: 1,741,768 km (0.05 R)
• M7: 2,011,343 km (0.091 R)
• M8: 2,564,257 km (0.033 R)
• M9: 3,601,868 km (0.107 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 323

Radius: 13.8

Gravity: 1.7 G

Time & Orbit

Eccentricity (e): 0.131

Orbit Range: 1.48 AU - 1.92 AU

Year: 1478 Days

Day: 12.5 Hours

Environment

Temp: -193 °C

Axial Tilt: 13 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 14,944,045 km

• M1: 171,738 km (0.105 R)
• M2: 619,036 km (0.066 R)
• M3: 1,081,742 km (0.066 R)
• M4: 1,673,103 km (0.09 R)
• M5: 2,500,080 km (0.075 R)
• M6: 3,215,606 km (0.083 R)
• M7: 3,843,169 km (0.104 R)
• M8: 5,077,202 km (0.116 R)
• M9: 5,542,900 km (0.059 R)
• M10: 6,538,325 km (0.075 R)
• M11: 7,067,303 km (0.078 R)
• M12: 8,476,215 km (0.118 R)
• M13: 10,185,521 km (0.113 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.86 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 742.1

Radius: 9.4

Gravity: 8.4 G

Time & Orbit

Eccentricity (e): 0.192

Orbit Range: 1.5 AU - 2.22 AU

Year: 1692 Days

Day: 5.1 Hours

Environment

Temp: -194 °C

Axial Tilt: 6.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 14,944,045 km

• M1: 116,986 km (0.117 R)
• M2: 424,260 km (0.119 R)
• M3: 831,615 km (0.083 R)
• M4: 1,329,775 km (0.101 R)
• M5: 1,821,354 km (0.116 R)
• M6: 2,783,119 km (0.093 R)
• M7: 3,626,252 km (0.108 R)
• M8: 4,107,359 km (0.115 R)
• M9: 5,024,992 km (0.119 R)
• M10: 5,693,545 km (0.105 R)
• M11: 6,858,464 km (0.082 R)
• M12: 7,152,723 km (0.117 R)
• M13: 7,539,284 km (0.08 R)
• M14: 7,881,863 km (0.037 R)
• M15: 8,877,736 km (0.05 R)
• M16: 9,553,918 km (0.082 R)
• M17: 11,081,462 km (0.118 R)
• M18: 11,675,366 km (0.081 R)
• M19: 12,173,377 km (0.115 R)
• M20: 13,418,331 km (0.099 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.05 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 486.5

Radius: 12

Gravity: 3.38 G

Time & Orbit

Eccentricity (e): 0.083

Orbit Range: 2.8 AU - 3.3 AU

Year: 3552 Days

Day: 5.3 Hours

Environment

Temp: -220 °C

Axial Tilt: 25.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 14,944,045 km

• M1: 149,299 km (0.041 R)
• M2: 573,109 km (0.059 R)
• M3: 950,096 km (0.083 R)
• M4: 1,574,667 km (0.102 R)
• M5: 2,077,316 km (0.107 R)
• M6: 2,519,677 km (0.116 R)
• M7: 2,974,754 km (0.099 R)
• M8: 3,910,040 km (0.103 R)
• M9: 4,326,670 km (0.058 R)
• M10: 4,889,457 km (0.072 R)
• M11: 5,349,470 km (0.056 R)
• M12: 5,864,835 km (0.058 R)
• M13: 8,992,328 km (0.072 R)
• M14: 10,218,432 km (0.066 R)
• M15: 11,014,143 km (0.084 R)
• M16: 11,936,564 km (0.112 R)
• M17: 13,000,803 km (0.115 R)
• M18: 14,418,692 km (0.11 R)
• M19: 14,813,780 km (0.066 R)
• M20: 15,266,762 km (0.076 R)
• M21: 16,466,537 km (0.113 R)
• M22: 17,840,892 km (0.094 R)
• M23: 18,876,858 km (0.102 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.11 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 122.2

Radius: 12.4

Gravity: 0.79 G

Time & Orbit

Eccentricity (e): 0.155

Orbit Range: 2.63 AU - 3.59 AU

Year: 3657 Days

Day: 5.9 Hours

Environment

Temp: -215 °C

Axial Tilt: 15.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 14,944,045 km

• M1: 155,432 km (0.107 R)
• M2: 769,831 km (0.083 R)
• M3: 1,216,530 km (0.117 R)
• M4: 1,953,748 km (0.073 R)
• M5: 2,486,915 km (0.088 R)
• M6: 3,582,570 km (0.119 R)
• M7: 4,006,381 km (0.111 R)
• M8: 4,617,488 km (0.076 R)
• M9: 5,354,257 km (0.109 R)
• M10: 5,933,949 km (0.104 R)
• M11: 8,563,880 km (0.098 R)
• M12: 9,016,563 km (0.071 R)
• M13: 11,560,475 km (0.106 R)

Planet 8 - Gas Giant

Semi-Major Axis: 3.34 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 843.5

Radius: 13.5

Gravity: 4.63 G

Time & Orbit

Eccentricity (e): 0.221

Orbit Range: 2.6 AU - 4.08 AU

Year: 4071 Days

Day: 10.1 Hours

Environment

Temp: -215 °C

Axial Tilt: 39.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 14,944,045 km

• M1: 168,148 km (0.11 R)
• M2: 590,612 km (0.064 R)
• M3: 1,113,158 km (0.118 R)
• M4: 1,781,112 km (0.115 R)
• M5: 2,445,028 km (0.094 R)
• M6: 2,916,111 km (0.08 R)
• M7: 3,977,059 km (0.049 R)
• M8: 4,834,854 km (0.085 R)
• M9: 6,136,355 km (0.085 R)
• M10: 6,566,150 km (0.073 R)
• M11: 7,082,113 km (0.027 R)
• M12: 8,232,221 km (0.088 R)
• M13: 10,207,512 km (0.061 R)
• M14: 12,144,206 km (0.105 R)
• M15: 13,479,217 km (0.069 R)
• M16: 14,315,319 km (0.078 R)
• M17: 16,852,948 km (0.117 R)
• M18: 17,455,229 km (0.086 R)
• M19: 20,959,410 km (0.105 R)
• M20: 21,656,237 km (0.093 R)
• M21: 25,453,330 km (0.094 R)
• M22: 26,407,465 km (0.081 R)

Planet 9 - Gas Giant

Semi-Major Axis: 3.85 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 81.8

Radius: 11.1

Gravity: 0.66 G

Time & Orbit

Eccentricity (e): 0.148

Orbit Range: 3.28 AU - 4.42 AU

Year: 5038 Days

Day: 14.3 Hours

Environment

Temp: -213 °C

Axial Tilt: 11.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 14,944,045 km

• M1: 138,079 km (0.095 R)
• M2: 484,398 km (0.059 R)
• M3: 1,009,636 km (0.082 R)
• M4: 1,382,135 km (0.104 R)
• M5: 1,785,750 km (0.076 R)
• M6: 3,548,611 km (0.099 R)
• M7: 4,571,262 km (0.097 R)
• M8: 5,023,197 km (0.073 R)
• M9: 6,089,232 km (0.106 R)
• M10: 12,008,969 km (0.071 R)
• M11: 13,903,327 km (0.104 R)

Kuiper Belt

Range: 30 - 55 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 336 - 10,669 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit