🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.34 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.67 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.28

Radius: 1.1

Gravity: 1.06 G

Time & Orbit

Eccentricity (e): 0.046

Orbit Range: 0.64 AU - 0.7 AU

Year: 354 Days

Day: 39 Hours

Environment

Temp: -136 °C

Axial Tilt: 17.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 25,745,836 km

• M1: 597,195 km (0.111 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.76 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 713.6

Radius: 10.6

Gravity: 6.35 G

Time & Orbit

Eccentricity (e): 0.122

Orbit Range: 0.67 AU - 0.85 AU

Year: 428 Days

Day: 13.4 Hours

Environment

Temp: -141 °C

Axial Tilt: 5.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 25,745,836 km

• M1: 131,796 km (0.025 R)
• M2: 517,908 km (0.052 R)
• M3: 898,186 km (0.118 R)
• M4: 1,431,652 km (0.083 R)
• M5: 2,133,864 km (0.104 R)
• M6: 2,613,176 km (0.056 R)
• M7: 3,174,916 km (0.108 R)
• M8: 5,908,667 km (0.102 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 553

Radius: 10.7

Gravity: 4.83 G

Time & Orbit

Eccentricity (e): 0.137

Orbit Range: 1.56 AU - 2.06 AU

Year: 1572 Days

Day: 9.8 Hours

Environment

Temp: -187 °C

Axial Tilt: 4.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 25,745,836 km

• M1: 173,085 km (0.091 R)
• M2: 535,261 km (0.066 R)
• M3: 1,251,835 km (0.047 R)
• M4: 1,647,073 km (0.093 R)
• M5: 5,139,136 km (0.082 R)
• M6: 6,123,190 km (0.072 R)
• M7: 6,896,312 km (0.067 R)
• M8: 7,952,623 km (0.119 R)
• M9: 8,289,667 km (0.081 R)
• M10: 11,482,833 km (0.101 R)
• M11: 12,695,324 km (0.112 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.5 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 714.8

Radius: 10.1

Gravity: 7.01 G

Time & Orbit

Eccentricity (e): 0.02

Orbit Range: 2.45 AU - 2.55 AU

Year: 2552 Days

Day: 12.1 Hours

Environment

Temp: -206 °C

Axial Tilt: 41.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 25,745,836 km

• M1: 125,662 km (0.107 R)
• M2: 1,714,541 km (0.101 R)
• M3: 2,302,162 km (0.096 R)
• M4: 3,520,636 km (0.119 R)
• M5: 5,764,455 km (0.03 R)
• M6: 8,457,216 km (0.118 R)
• M7: 8,827,322 km (0.12 R)
• M8: 10,531,690 km (0.057 R)
• M9: 10,881,450 km (0.064 R)
• M10: 11,199,046 km (0.093 R)
• M11: 12,359,327 km (0.118 R)
• M12: 13,735,478 km (0.107 R)
• M13: 17,483,503 km (0.091 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.59 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 566.9

Radius: 14.4

Gravity: 2.73 G

Time & Orbit

Eccentricity (e): 0.239

Orbit Range: 1.97 AU - 3.21 AU

Year: 2691 Days

Day: 12.9 Hours

Environment

Temp: -203 °C

Axial Tilt: 36.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 25,745,836 km

• M1: 179,218 km (0.076 R)
• M2: 810,970 km (0.108 R)
• M3: 1,440,927 km (0.099 R)
• M4: 2,182,932 km (0.06 R)
• M5: 2,898,459 km (0.094 R)
• M6: 4,092,848 km (0.115 R)
• M7: 5,569,529 km (0.074 R)
• M8: 6,309,440 km (0.106 R)
• M9: 7,769,365 km (0.095 R)
• M10: 13,014,416 km (0.038 R)
• M11: 15,172,366 km (0.111 R)
• M12: 16,515,156 km (0.054 R)
• M13: 17,400,327 km (0.091 R)
• M14: 17,935,588 km (0.08 R)

Planet 6 - Ice Giant

Semi-Major Axis: 6.55 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 988

Radius: 5.9

Gravity: 28.38 G

Time & Orbit

Eccentricity (e): 0.206

Orbit Range: 5.2 AU - 7.9 AU

Year: 10824 Days

Day: 23 Hours

Environment

Temp: -222 °C

Axial Tilt: 37.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 25,745,836 km

• M1: 73,602 km (0.091 R)
• M2: 368,609 km (0.054 R)
• M3: 794,664 km (0.098 R)
• M4: 1,233,434 km (0.109 R)
• M5: 1,628,373 km (0.071 R)
• M6: 1,838,558 km (0.079 R)
• M7: 2,103,944 km (0.11 R)
• M8: 2,645,938 km (0.108 R)
• M9: 3,177,459 km (0.086 R)
• M10: 3,668,140 km (0.101 R)
• M11: 4,003,089 km (0.12 R)
• M12: 5,917,942 km (0.115 R)
• M13: 7,329,697 km (0.104 R)
• M14: 9,151,799 km (0.096 R)
• M15: 10,302,805 km (0.08 R)
• M16: 11,606,102 km (0.06 R)
• M17: 11,963,342 km (0.093 R)
• M18: 15,804,417 km (0.108 R)
• M19: 16,096,132 km (0.119 R)
• M20: 16,765,733 km (0.088 R)
• M21: 17,765,495 km (0.088 R)
• M22: 19,049,793 km (0.096 R)
• M23: 23,272,342 km (0.054 R)
• M24: 23,936,108 km (0.062 R)
• M25: 24,321,023 km (0.118 R)
• M26: 25,700,615 km (0.116 R)
• M27: 27,549,944 km (0.084 R)
• M28: 27,972,707 km (0.068 R)
• M29: 33,030,611 km (0.031 R)
• M30: 33,507,679 km (0.071 R)
• M31: 37,104,610 km (0.082 R)
• M32: 49,114,028 km (0.088 R)
• M33: 52,758,980 km (0.073 R)
• M34: 54,398,423 km (0.105 R)
• M35: 56,071,676 km (0.088 R)
• M36: 56,750,401 km (0.05 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.8 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 219.7

Radius: 4.4

Gravity: 11.35 G

Time & Orbit

Eccentricity (e): 0.007

Orbit Range: 6.75 AU - 6.85 AU

Year: 11449 Days

Day: 17 Hours

Environment

Temp: -230 °C

Axial Tilt: 49.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 25,745,836 km

• M1: 55,052 km (0.036 R)
• M2: 635,342 km (0.089 R)
• M3: 929,152 km (0.1 R)
• M4: 1,331,571 km (0.072 R)
• M5: 1,699,731 km (0.105 R)
• M6: 2,945,283 km (0.086 R)
• M7: 3,214,260 km (0.034 R)
• M8: 21,841,140 km (0.076 R)
• M9: 26,454,439 km (0.04 R)
• M10: 26,895,453 km (0.034 R)
• M11: 29,455,821 km (0.097 R)
• M12: 31,875,267 km (0.062 R)
• M13: 32,878,919 km (0.065 R)
• M14: 35,161,035 km (0.105 R)
• M15: 35,586,940 km (0.058 R)

Planet 8 - Ice Giant

Semi-Major Axis: 6.95 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 294.6

Radius: 6.1

Gravity: 7.92 G

Time & Orbit

Eccentricity (e): 0.067

Orbit Range: 6.48 AU - 7.42 AU

Year: 11830 Days

Day: 21.5 Hours

Environment

Temp: -232 °C

Axial Tilt: 31.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 25,745,836 km

• M1: 75,996 km (0.117 R)
• M2: 434,133 km (0.076 R)
• M3: 934,388 km (0.049 R)
• M4: 2,024,059 km (0.11 R)
• M5: 2,292,438 km (0.081 R)
• M6: 2,739,436 km (0.084 R)
• M7: 3,068,701 km (0.089 R)
• M8: 3,378,070 km (0.104 R)
• M9: 3,855,885 km (0.096 R)
• M10: 4,684,358 km (0.117 R)
• M11: 5,309,228 km (0.112 R)
• M12: 5,561,301 km (0.101 R)
• M13: 6,507,507 km (0.052 R)
• M14: 7,056,532 km (0.092 R)
• M15: 7,284,519 km (0.095 R)
• M16: 8,627,908 km (0.119 R)
• M17: 8,844,825 km (0.083 R)
• M18: 9,703,067 km (0.114 R)
• M19: 15,597,224 km (0.059 R)
• M20: 16,644,708 km (0.091 R)
• M21: 17,185,803 km (0.062 R)
• M22: 18,019,064 km (0.093 R)
• M23: 19,541,820 km (0.086 R)
• M24: 19,916,563 km (0.072 R)
• M25: 22,758,324 km (0.064 R)
• M26: 23,256,784 km (0.055 R)
• M27: 24,621,715 km (0.07 R)
• M28: 26,584,439 km (0.106 R)
• M29: 32,463,187 km (0.112 R)
• M30: 36,602,261 km (0.036 R)

Planet 9 - Ice Giant

Semi-Major Axis: 8.25 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 563.4

Radius: 4.9

Gravity: 23.47 G

Time & Orbit

Eccentricity (e): 0.074

Orbit Range: 7.64 AU - 8.86 AU

Year: 15300 Days

Day: 16.3 Hours

Environment

Temp: -234 °C

Axial Tilt: 22.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 25,745,836 km

• M1: 214,075 km (0.116 R)
• M2: 476,020 km (0.099 R)
• M3: 628,461 km (0.068 R)
• M4: 1,368,671 km (0.115 R)
• M5: 2,163,036 km (0.109 R)
• M6: 3,127,493 km (0.091 R)
• M7: 4,018,199 km (0.082 R)
• M8: 4,506,037 km (0.09 R)
• M9: 4,863,576 km (0.115 R)
• M10: 5,100,839 km (0.115 R)
• M11: 5,746,503 km (0.052 R)
• M12: 9,810,628 km (0.081 R)
• M13: 11,151,025 km (0.104 R)
• M14: 15,170,122 km (0.105 R)
• M15: 22,855,862 km (0.103 R)
• M16: 23,810,895 km (0.08 R)
• M17: 24,200,148 km (0.097 R)
• M18: 28,877,176 km (0.106 R)
• M19: 29,767,284 km (0.094 R)
• M20: 34,369,213 km (0.088 R)
• M21: 36,644,447 km (0.072 R)
• M22: 39,695,346 km (0.103 R)
• M23: 41,072,993 km (0.063 R)
• M24: 43,777,722 km (0.119 R)
• M25: 46,447,596 km (0.115 R)
• M26: 46,750,681 km (0.097 R)
• M27: 47,822,251 km (0.096 R)
• M28: 52,108,828 km (0.086 R)
• M29: 58,388,947 km (0.049 R)
• M30: 58,741,997 km (0.096 R)

Planet 10 - Ice Giant

Semi-Major Axis: 8.72 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 38.4

Radius: 3.2

Gravity: 3.75 G

Time & Orbit

Eccentricity (e): 0.213

Orbit Range: 6.86 AU - 10.58 AU

Year: 16626 Days

Day: 22.8 Hours

Environment

Temp: -238 °C

Axial Tilt: 8.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 25,745,836 km

• M1: 105,915 km (0.089 R)
• M2: 2,900,553 km (0.085 R)
• M3: 3,888,497 km (0.098 R)
• M4: 4,578,443 km (0.087 R)
• M5: 8,374,788 km (0.055 R)
• M6: 11,684,192 km (0.066 R)
• M7: 14,844,746 km (0.071 R)
• M8: 15,938,157 km (0.088 R)

Kuiper Belt

Range: 30 - 58 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 345 - 13,109 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit