🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.51 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 1.01 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 734.2

Radius: 13.4

Gravity: 4.09 G

Time & Orbit

Eccentricity (e): 0.158

Orbit Range: 0.85 AU - 1.17 AU

Year: 713 Days

Day: 13.3 Hours

Environment

Temp: -173 °C

Axial Tilt: 0 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 76,985,421 km

• M1: 166,652 km (0.102 R)
• M2: 720,164 km (0.068 R)
• M3: 1,573,171 km (0.077 R)
• M4: 2,044,255 km (0.074 R)
• M5: 2,756,191 km (0.1 R)
• M6: 4,107,210 km (0.102 R)
• M7: 6,176,746 km (0.051 R)
• M8: 7,169,628 km (0.094 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.13 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 187.1

Radius: 15

Gravity: 0.83 G

Time & Orbit

Eccentricity (e): 0.086

Orbit Range: 1.03 AU - 1.23 AU

Year: 844 Days

Day: 11.2 Hours

Environment

Temp: -180 °C

Axial Tilt: 34.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 76,985,421 km

• M1: 186,549 km (0.041 R)
• M2: 929,003 km (0.1 R)
• M3: 1,489,995 km (0.065 R)
• M4: 2,184,129 km (0.11 R)
• M5: 3,268,414 km (0.12 R)
• M6: 4,614,496 km (0.074 R)
• M7: 5,430,253 km (0.109 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.61 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 237.5

Radius: 11.6

Gravity: 1.77 G

Time & Orbit

Eccentricity (e): 0.116

Orbit Range: 1.42 AU - 1.8 AU

Year: 1436 Days

Day: 14.7 Hours

Environment

Temp: -191 °C

Axial Tilt: 4.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 76,985,421 km

• M1: 152,889 km (0.067 R)
• M2: 623,674 km (0.102 R)
• M3: 1,233,434 km (0.081 R)
• M4: 1,706,613 km (0.102 R)
• M5: 2,438,894 km (0.093 R)
• M6: 2,878,113 km (0.068 R)
• M7: 3,288,909 km (0.073 R)
• M8: 3,842,571 km (0.064 R)
• M9: 4,229,730 km (0.027 R)
• M10: 4,763,346 km (0.082 R)
• M11: 5,379,240 km (0.119 R)
• M12: 5,966,262 km (0.103 R)
• M13: 6,617,312 km (0.079 R)
• M14: 7,016,589 km (0.065 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.63 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 833.9

Radius: 12.8

Gravity: 5.09 G

Time & Orbit

Eccentricity (e): 0.036

Orbit Range: 1.57 AU - 1.69 AU

Year: 1463 Days

Day: 12.5 Hours

Environment

Temp: -184 °C

Axial Tilt: 26.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 76,985,421 km

• M1: 159,172 km (0.072 R)
• M2: 777,161 km (0.1 R)
• M3: 1,185,264 km (0.085 R)
• M4: 1,664,875 km (0.064 R)
• M5: 2,227,363 km (0.115 R)
• M6: 3,239,691 km (0.036 R)
• M7: 4,422,861 km (0.119 R)
• M8: 5,187,755 km (0.071 R)
• M9: 5,829,530 km (0.071 R)
• M10: 6,724,574 km (0.092 R)
• M11: 7,298,880 km (0.087 R)
• M12: 8,192,727 km (0.066 R)
• M13: 9,766,497 km (0.034 R)
• M14: 10,993,050 km (0.09 R)
• M15: 11,606,850 km (0.115 R)
• M16: 12,667,499 km (0.115 R)
• M17: 13,141,425 km (0.077 R)
• M18: 13,586,329 km (0.089 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.78 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 822.2

Radius: 13.1

Gravity: 4.79 G

Time & Orbit

Eccentricity (e): 0.223

Orbit Range: 2.16 AU - 3.4 AU

Year: 3258 Days

Day: 5.4 Hours

Environment

Temp: -205 °C

Axial Tilt: 20.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 76,985,421 km

• M1: 162,912 km (0.09 R)
• M2: 613,800 km (0.063 R)
• M3: 1,289,982 km (0.109 R)
• M4: 2,231,701 km (0.085 R)
• M5: 2,779,379 km (0.11 R)
• M6: 3,378,369 km (0.076 R)
• M7: 4,789,077 km (0.102 R)
• M8: 6,210,556 km (0.084 R)
• M9: 7,144,794 km (0.114 R)
• M10: 7,896,972 km (0.108 R)
• M11: 8,773,766 km (0.079 R)
• M12: 9,330,270 km (0.067 R)
• M13: 11,185,582 km (0.102 R)
• M14: 14,210,900 km (0.116 R)
• M15: 15,614,727 km (0.067 R)
• M16: 16,157,468 km (0.07 R)
• M17: 18,455,441 km (0.059 R)
• M18: 19,309,046 km (0.105 R)
• M19: 20,188,681 km (0.108 R)
• M20: 20,963,748 km (0.027 R)
• M21: 23,976,649 km (0.1 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.02 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 217

Radius: 11.3

Gravity: 1.7 G

Time & Orbit

Eccentricity (e): 0.234

Orbit Range: 2.31 AU - 3.73 AU

Year: 3689 Days

Day: 7.3 Hours

Environment

Temp: -204 °C

Axial Tilt: 31.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 76,985,421 km

• M1: 140,472 km (0.116 R)
• M2: 555,457 km (0.077 R)
• M3: 1,289,234 km (0.094 R)
• M4: 1,773,483 km (0.066 R)
• M5: 2,174,255 km (0.074 R)
• M6: 2,735,846 km (0.115 R)
• M7: 3,210,969 km (0.109 R)
• M8: 3,616,080 km (0.118 R)
• M9: 6,439,590 km (0.091 R)
• M10: 7,032,147 km (0.099 R)
• M11: 8,049,861 km (0.03 R)
• M12: 8,420,565 km (0.104 R)
• M13: 9,263,100 km (0.119 R)
• M14: 9,636,048 km (0.072 R)
• M15: 10,557,870 km (0.109 R)
• M16: 11,002,624 km (0.09 R)
• M17: 13,589,919 km (0.076 R)
• M18: 15,827,305 km (0.102 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.94 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 926.9

Radius: 9.7

Gravity: 9.85 G

Time & Orbit

Eccentricity (e): 0.045

Orbit Range: 4.72 AU - 5.16 AU

Year: 7718 Days

Day: 13.5 Hours

Environment

Temp: -234 °C

Axial Tilt: 9.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 76,985,421 km

• M1: 121,174 km (0.092 R)
• M2: 550,520 km (0.098 R)
• M3: 1,915,900 km (0.098 R)
• M4: 2,659,401 km (0.116 R)
• M5: 4,311,261 km (0.041 R)
• M6: 5,850,025 km (0.103 R)
• M7: 7,086,900 km (0.091 R)
• M8: 10,021,113 km (0.077 R)
• M9: 10,877,860 km (0.057 R)
• M10: 11,728,174 km (0.03 R)
• M11: 12,852,551 km (0.094 R)
• M12: 15,445,382 km (0.053 R)
• M13: 21,070,262 km (0.078 R)
• M14: 22,983,768 km (0.092 R)
• M15: 25,010,221 km (0.117 R)
• M16: 26,394,450 km (0.076 R)
• M17: 28,714,264 km (0.085 R)
• M18: 31,377,256 km (0.118 R)
• M19: 33,095,537 km (0.12 R)
• M20: 35,216,236 km (0.098 R)
• M21: 38,263,096 km (0.07 R)
• M22: 41,736,011 km (0.098 R)

Planet 8 - Ice Giant

Semi-Major Axis: 5.57 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 90

Radius: 6.1

Gravity: 2.42 G

Time & Orbit

Eccentricity (e): 0.22

Orbit Range: 4.34 AU - 6.8 AU

Year: 9240 Days

Day: 21.5 Hours

Environment

Temp: -233 °C

Axial Tilt: 23.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 76,985,421 km

• M1: 78,688 km (0.116 R)
• M2: 363,523 km (0.058 R)
• M3: 570,865 km (0.112 R)
• M4: 1,572,722 km (0.115 R)
• M5: 2,232,000 km (0.116 R)
• M6: 2,545,258 km (0.063 R)
• M7: 2,870,484 km (0.068 R)
• M8: 3,114,478 km (0.077 R)
• M9: 3,724,389 km (0.067 R)
• M10: 6,433,008 km (0.115 R)
• M11: 6,790,995 km (0.11 R)
• M12: 7,037,084 km (0.096 R)
• M13: 9,992,390 km (0.093 R)
• M14: 13,781,704 km (0.107 R)
• M15: 14,027,643 km (0.116 R)
• M16: 14,528,197 km (0.072 R)
• M17: 15,671,424 km (0.103 R)
• M18: 22,163,373 km (0.071 R)
• M19: 23,117,658 km (0.069 R)

Planet 9 - Ice Giant

Semi-Major Axis: 6.7 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 92.5

Radius: 3

Gravity: 10.28 G

Time & Orbit

Eccentricity (e): 0.015

Orbit Range: 6.6 AU - 6.8 AU

Year: 12190 Days

Day: 24.8 Hours

Environment

Temp: -235 °C

Axial Tilt: 20 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 76,985,421 km

• M1: 37,250 km (0.102 R)
• M2: 200,760 km (0.067 R)
• M3: 296,802 km (0.069 R)
• M4: 391,797 km (0.107 R)
• M5: 491,130 km (0.089 R)
• M6: 824,733 km (0.12 R)
• M7: 990,488 km (0.117 R)
• M8: 1,238,970 km (0.085 R)
• M9: 1,538,913 km (0.081 R)
• M10: 1,804,150 km (0.03 R)
• M11: 2,203,876 km (0.037 R)
• M12: 2,360,056 km (0.109 R)
• M13: 3,214,858 km (0.109 R)
• M14: 3,415,918 km (0.094 R)
• M15: 5,970,601 km (0.112 R)
• M16: 6,121,096 km (0.094 R)
• M17: 6,620,005 km (0.036 R)
• M18: 9,124,423 km (0.099 R)
• M19: 9,774,126 km (0.082 R)
• M20: 12,831,907 km (0.088 R)
• M21: 16,236,306 km (0.062 R)
• M22: 17,309,222 km (0.101 R)
• M23: 18,747,904 km (0.088 R)
• M24: 19,994,803 km (0.041 R)
• M25: 21,576,950 km (0.07 R)
• M26: 24,370,391 km (0.052 R)
• M27: 26,984,015 km (0.103 R)

Planet 10 - Ice Giant

Semi-Major Axis: 8.96 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 798.5

Radius: 3.7

Gravity: 58.33 G

Time & Orbit

Eccentricity (e): 0.13

Orbit Range: 7.8 AU - 10.12 AU

Year: 18853 Days

Day: 20.8 Hours

Environment

Temp: -232 °C

Axial Tilt: 47.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 76,985,421 km

• M1: 46,076 km (0.107 R)
• M2: 199,863 km (0.031 R)
• M3: 343,776 km (0.05 R)
• M4: 502,200 km (0.099 R)
• M5: 1,083,238 km (0.107 R)
• M6: 1,262,606 km (0.114 R)
• M7: 1,981,274 km (0.105 R)
• M8: 2,382,795 km (0.098 R)
• M9: 3,205,434 km (0.111 R)
• M10: 3,726,184 km (0.109 R)
• M11: 5,466,007 km (0.111 R)
• M12: 5,787,044 km (0.119 R)
• M13: 6,871,778 km (0.116 R)
• M14: 10,073,023 km (0.062 R)
• M15: 13,128,111 km (0.116 R)
• M16: 17,168,450 km (0.086 R)
• M17: 25,763,446 km (0.117 R)
• M18: 31,732,102 km (0.076 R)
• M19: 32,245,821 km (0.101 R)
• M20: 41,850,154 km (0.092 R)
• M21: 42,004,090 km (0.105 R)
• M22: 42,312,860 km (0.076 R)
• M23: 45,811,356 km (0.098 R)
• M24: 46,138,676 km (0.067 R)
• M25: 46,632,499 km (0.106 R)
• M26: 47,630,765 km (0.101 R)
• M27: 59,373,600 km (0.05 R)
• M28: 67,904,568 km (0.068 R)
• M29: 73,799,023 km (0.171 R)

Kuiper Belt

Range: 30 - 57 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 206 - 17,143 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit