🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.26 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.52 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.8

Radius: 1.87

Gravity: 1.37 G

Time & Orbit

Eccentricity (e): 0.249

Orbit Range: 0.39 AU - 0.65 AU

Year: 246 Days

Day: 42.8 Hours

Environment

Temp: -117 °C

Axial Tilt: 9.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Terrestrial

Semi-Major Axis: 0.54 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.97

Radius: 1.74

Gravity: 1.31 G

Time & Orbit

Eccentricity (e): 0.197

Orbit Range: 0.43 AU - 0.65 AU

Year: 260 Days

Day: 15.1 Hours

Environment

Temp: -121 °C

Axial Tilt: 10.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Gas Giant

Semi-Major Axis: 0.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 272.4

Radius: 9.2

Gravity: 3.22 G

Time & Orbit

Eccentricity (e): 0.212

Orbit Range: 0.64 AU - 0.98 AU

Year: 478 Days

Day: 8.8 Hours

Environment

Temp: -145 °C

Axial Tilt: 9.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 71,770,609 km

• M1: 117,734 km (0.083 R)
• M2: 438,172 km (0.092 R)
• M3: 897,138 km (0.118 R)
• M4: 1,399,039 km (0.109 R)
• M5: 1,912,908 km (0.086 R)
• M6: 2,713,705 km (0.076 R)
• M7: 3,117,769 km (0.102 R)
• M8: 3,572,996 km (0.078 R)
• M9: 3,924,850 km (0.103 R)
• M10: 4,261,295 km (0.055 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.14 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 80.2

Radius: 8.4

Gravity: 1.14 G

Time & Orbit

Eccentricity (e): 0.192

Orbit Range: 0.92 AU - 1.36 AU

Year: 798 Days

Day: 10.4 Hours

Environment

Temp: -174 °C

Axial Tilt: 42.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 71,770,609 km

• M1: 110,553 km (0.067 R)
• M2: 380,128 km (0.102 R)
• M3: 657,483 km (0.084 R)
• M4: 1,063,042 km (0.107 R)
• M5: 1,369,419 km (0.095 R)
• M6: 1,894,807 km (0.107 R)
• M7: 2,277,179 km (0.1 R)
• M8: 3,229,220 km (0.05 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.24 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 718.9

Radius: 12.4

Gravity: 4.68 G

Time & Orbit

Eccentricity (e): 0.053

Orbit Range: 2.12 AU - 2.36 AU

Year: 2199 Days

Day: 6.7 Hours

Environment

Temp: -203 °C

Axial Tilt: 23.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 71,770,609 km

• M1: 154,235 km (0.065 R)
• M2: 1,074,562 km (0.081 R)
• M3: 1,572,573 km (0.111 R)
• M4: 2,063,703 km (0.078 R)
• M5: 2,627,986 km (0.086 R)
• M6: 4,206,842 km (0.053 R)
• M7: 5,053,117 km (0.074 R)
• M8: 6,214,744 km (0.085 R)
• M9: 6,970,363 km (0.093 R)
• M10: 7,665,993 km (0.115 R)
• M11: 8,312,106 km (0.03 R)
• M12: 8,961,062 km (0.04 R)
• M13: 9,961,722 km (0.115 R)
• M14: 10,396,902 km (0.118 R)
• M15: 11,073,683 km (0.073 R)
• M16: 13,281,598 km (0.092 R)
• M17: 13,765,098 km (0.051 R)
• M18: 14,260,267 km (0.092 R)
• M19: 16,814,801 km (0.048 R)
• M20: 17,225,297 km (0.086 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.39 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 402.1

Radius: 10.7

Gravity: 3.51 G

Time & Orbit

Eccentricity (e): 0.171

Orbit Range: 2.81 AU - 3.97 AU

Year: 4095 Days

Day: 5.3 Hours

Environment

Temp: -215 °C

Axial Tilt: 13 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 71,770,609 km

• M1: 158,574 km (0.097 R)
• M2: 653,144 km (0.097 R)
• M3: 1,220,419 km (0.114 R)
• M4: 1,786,199 km (0.103 R)
• M5: 2,446,224 km (0.091 R)
• M6: 4,491,975 km (0.036 R)
• M7: 5,052,668 km (0.113 R)
• M8: 6,690,017 km (0.073 R)
• M9: 8,974,825 km (0.103 R)
• M10: 12,217,359 km (0.1 R)
• M11: 12,665,405 km (0.059 R)
• M12: 13,264,245 km (0.084 R)
• M13: 16,546,123 km (0.107 R)
• M14: 17,883,827 km (0.078 R)
• M15: 19,839,071 km (0.06 R)
• M16: 21,155,233 km (0.04 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.35 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 947.3

Radius: 4.7

Gravity: 42.88 G

Time & Orbit

Eccentricity (e): 0.115

Orbit Range: 6.5 AU - 8.2 AU

Year: 13072 Days

Day: 17.7 Hours

Environment

Temp: -219 °C

Axial Tilt: 24.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (38)

Outer Limit: 71,770,609 km

• M1: 58,493 km (0.12 R)
• M2: 334,650 km (0.086 R)
• M3: 568,771 km (0.085 R)
• M4: 854,952 km (0.083 R)
• M5: 1,019,659 km (0.072 R)
• M6: 1,192,594 km (0.095 R)
• M7: 1,370,616 km (0.119 R)
• M8: 1,535,024 km (0.116 R)
• M9: 1,922,183 km (0.055 R)
• M10: 2,435,154 km (0.039 R)
• M11: 3,034,443 km (0.109 R)
• M12: 3,185,836 km (0.086 R)
• M13: 3,395,423 km (0.072 R)
• M14: 4,140,719 km (0.082 R)
• M15: 4,390,698 km (0.085 R)
• M16: 5,381,634 km (0.081 R)
• M17: 5,679,334 km (0.082 R)
• M18: 5,909,864 km (0.03 R)
• M19: 7,516,994 km (0.1 R)
• M20: 7,984,038 km (0.069 R)
• M21: 9,826,037 km (0.084 R)
• M22: 10,787,054 km (0.072 R)
• M23: 11,685,688 km (0.089 R)
• M24: 14,394,756 km (0.044 R)
• M25: 15,040,869 km (0.11 R)
• M26: 16,936,873 km (0.068 R)
• M27: 17,495,022 km (0.057 R)
• M28: 18,986,513 km (0.118 R)
• M29: 24,770,565 km (0.12 R)
• M30: 29,065,819 km (0.075 R)
• M31: 29,865,121 km (0.107 R)
• M32: 34,461,814 km (0.098 R)
• M33: 39,231,294 km (0.059 R)
• M34: 40,066,648 km (0.096 R)
• M35: 45,177,659 km (0.074 R)
• M36: 50,215,667 km (0.117 R)
• M37: 52,197,539 km (0.037 R)
• M38: 61,575,980 km (0.08 R)

Planet 8 - Ice Giant

Semi-Major Axis: 8.42 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 564.6

Radius: 4.9

Gravity: 23.52 G

Time & Orbit

Eccentricity (e): 0

Orbit Range: 8.42 AU - 8.42 AU

Year: 16028 Days

Day: 15.7 Hours

Environment

Temp: -218 °C

Axial Tilt: 39.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 71,770,609 km

• M1: 61,634 km (0.045 R)
• M2: 390,450 km (0.066 R)
• M3: 552,914 km (0.109 R)
• M4: 1,092,513 km (0.052 R)
• M5: 1,325,886 km (0.093 R)
• M6: 2,191,310 km (0.046 R)
• M7: 2,697,399 km (0.109 R)
• M8: 2,977,895 km (0.053 R)
• M9: 4,145,806 km (0.08 R)
• M10: 4,392,642 km (0.049 R)
• M11: 4,551,814 km (0.081 R)
• M12: 4,814,658 km (0.043 R)
• M13: 5,122,381 km (0.096 R)
• M14: 9,905,623 km (0.083 R)
• M15: 11,689,877 km (0.103 R)
• M16: 13,013,519 km (0.045 R)
• M17: 20,971,826 km (0.057 R)
• M18: 23,203,827 km (0.09 R)
• M19: 25,079,335 km (0.025 R)
• M20: 25,486,690 km (0.101 R)
• M21: 29,579,239 km (0.109 R)
• M22: 31,074,021 km (0.052 R)
• M23: 46,857,943 km (0.087 R)
• M24: 50,322,929 km (0.058 R)
• M25: 51,296,811 km (0.089 R)
• M26: 54,124,061 km (0.112 R)
• M27: 58,112,190 km (0.047 R)

Planet 9 - Ice Giant

Semi-Major Axis: 8.53 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 142.4

Radius: 5.1

Gravity: 5.47 G

Time & Orbit

Eccentricity (e): 0.118

Orbit Range: 7.52 AU - 9.54 AU

Year: 16343 Days

Day: 19.3 Hours

Environment

Temp: -230 °C

Axial Tilt: 55.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 71,770,609 km

• M1: 68,965 km (0.11 R)
• M2: 373,396 km (0.076 R)
• M3: 787,184 km (0.04 R)
• M4: 1,623,137 km (0.082 R)
• M5: 4,606,418 km (0.033 R)
• M6: 7,777,593 km (0.105 R)
• M7: 8,773,616 km (0.103 R)
• M8: 9,805,243 km (0.093 R)
• M9: 12,268,222 km (0.075 R)
• M10: 18,231,193 km (0.115 R)
• M11: 25,432,386 km (0.096 R)
• M12: 25,609,061 km (0.085 R)
• M13: 27,051,185 km (0.057 R)
• M14: 30,393,201 km (0.064 R)
• M15: 34,107,417 km (0.11 R)

Planet 10 - Ice Giant

Semi-Major Axis: 9.13 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 702.1

Radius: 4.6

Gravity: 33.18 G

Time & Orbit

Eccentricity (e): 0.193

Orbit Range: 7.37 AU - 10.89 AU

Year: 18097 Days

Day: 15.6 Hours

Environment

Temp: -237 °C

Axial Tilt: 34.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (41)

Outer Limit: 71,770,609 km

• M1: 58,343 km (0.062 R)
• M2: 222,153 km (0.081 R)
• M3: 863,180 km (0.095 R)
• M4: 1,246,300 km (0.097 R)
• M5: 1,437,636 km (0.049 R)
• M6: 1,614,610 km (0.118 R)
• M7: 2,341,655 km (0.109 R)
• M8: 2,496,340 km (0.097 R)
• M9: 3,027,711 km (0.104 R)
• M10: 3,320,175 km (0.042 R)
• M11: 3,748,923 km (0.114 R)
• M12: 4,750,929 km (0.115 R)
• M13: 4,927,754 km (0.058 R)
• M14: 5,879,047 km (0.079 R)
• M15: 6,249,750 km (0.045 R)
• M16: 6,679,545 km (0.119 R)
• M17: 7,408,087 km (0.103 R)
• M18: 7,988,078 km (0.097 R)
• M19: 8,442,705 km (0.097 R)
• M20: 9,514,275 km (0.11 R)
• M21: 10,316,269 km (0.048 R)
• M22: 11,162,395 km (0.113 R)
• M23: 11,988,474 km (0.065 R)
• M24: 12,786,579 km (0.071 R)
• M25: 12,991,528 km (0.088 R)
• M26: 16,095,833 km (0.047 R)
• M27: 25,185,699 km (0.113 R)
• M28: 28,532,054 km (0.078 R)
• M29: 29,710,287 km (0.095 R)
• M30: 32,037,282 km (0.107 R)
• M31: 33,568,117 km (0.094 R)
• M32: 34,880,389 km (0.039 R)
• M33: 40,913,970 km (0.081 R)
• M34: 42,259,155 km (0.119 R)
• M35: 44,722,882 km (0.118 R)
• M36: 53,920,458 km (0.039 R)
• M37: 58,675,726 km (0.095 R)
• M38: 63,504,595 km (0.065 R)
• M39: 63,902,077 km (0.1 R)
• M40: 65,913,719 km (0.04 R)
• M41: 67,553,312 km (0.119 R)

Kuiper Belt

Range: 30 - 46 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 360 - 13,041 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit