🌌 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 - Gas Giant

Semi-Major Axis: 0.51 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 680.2

Radius: 11.7

Gravity: 4.97 G

Time & Orbit

Eccentricity (e): 0.108

Orbit Range: 0.45 AU - 0.57 AU

Year: 251 Days

Day: 6.2 Hours

Environment

Temp: -135 °C

Axial Tilt: 26.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 63,585,787 km

• M1: 146,008 km (0.095 R)
• M2: 616,942 km (0.099 R)
• M3: 1,232,537 km (0.087 R)
• M4: 1,855,911 km (0.036 R)
• M5: 2,352,127 km (0.108 R)
• M6: 2,797,331 km (0.058 R)
• M7: 3,197,804 km (0.06 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 408.9

Radius: 11.6

Gravity: 3.04 G

Time & Orbit

Eccentricity (e): 0.119

Orbit Range: 0.64 AU - 0.82 AU

Year: 431 Days

Day: 14.7 Hours

Environment

Temp: -164 °C

Axial Tilt: 7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 63,585,787 km

• M1: 144,212 km (0.115 R)
• M2: 609,761 km (0.049 R)
• M3: 1,016,966 km (0.079 R)
• M4: 2,047,696 km (0.057 R)
• M5: 2,419,746 km (0.115 R)
• M6: 2,788,504 km (0.113 R)
• M7: 3,390,935 km (0.101 R)
• M8: 3,880,120 km (0.084 R)
• M9: 4,702,310 km (0.056 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.78 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 354.2

Radius: 13.9

Gravity: 1.83 G

Time & Orbit

Eccentricity (e): 0.185

Orbit Range: 0.64 AU - 0.92 AU

Year: 476 Days

Day: 13.8 Hours

Environment

Temp: -155 °C

Axial Tilt: 33 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 63,585,787 km

• M1: 173,085 km (0.12 R)
• M2: 653,743 km (0.042 R)
• M3: 1,205,310 km (0.099 R)
• M4: 1,733,540 km (0.097 R)
• M5: 2,416,604 km (0.09 R)
• M6: 3,032,498 km (0.089 R)
• M7: 3,553,249 km (0.091 R)
• M8: 4,057,693 km (0.089 R)
• M9: 4,790,872 km (0.116 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.84 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 171.1

Radius: 12.3

Gravity: 1.13 G

Time & Orbit

Eccentricity (e): 0.166

Orbit Range: 0.7 AU - 0.98 AU

Year: 531 Days

Day: 8.5 Hours

Environment

Temp: -176 °C

Axial Tilt: 34 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 63,585,787 km

• M1: 153,039 km (0.097 R)
• M2: 636,988 km (0.116 R)
• M3: 1,077,553 km (0.044 R)
• M4: 1,625,381 km (0.086 R)
• M5: 2,031,090 km (0.082 R)
• M6: 3,919,165 km (0.074 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.07 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 277.5

Radius: 11.5

Gravity: 2.1 G

Time & Orbit

Eccentricity (e): 0.007

Orbit Range: 1.06 AU - 1.08 AU

Year: 764 Days

Day: 11.5 Hours

Environment

Temp: -181 °C

Axial Tilt: 43.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 63,585,787 km

• M1: 145,858 km (0.095 R)
• M2: 579,542 km (0.042 R)
• M3: 1,275,023 km (0.094 R)
• M4: 1,689,259 km (0.089 R)
• M5: 2,591,634 km (0.11 R)
• M6: 2,970,864 km (0.079 R)
• M7: 4,470,284 km (0.114 R)
• M8: 5,648,965 km (0.097 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.52 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 140.4

Radius: 12.9

Gravity: 0.84 G

Time & Orbit

Eccentricity (e): 0.221

Orbit Range: 1.96 AU - 3.08 AU

Year: 2761 Days

Day: 12 Hours

Environment

Temp: -208 °C

Axial Tilt: 46.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 63,585,787 km

• M1: 160,369 km (0.091 R)
• M2: 1,107,024 km (0.071 R)
• M3: 1,851,872 km (0.09 R)
• M4: 2,951,117 km (0.102 R)
• M5: 3,452,569 km (0.094 R)
• M6: 5,010,182 km (0.098 R)
• M7: 9,099,739 km (0.104 R)
• M8: 10,653,912 km (0.102 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.96 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 755.5

Radius: 9.4

Gravity: 8.55 G

Time & Orbit

Eccentricity (e): 0.173

Orbit Range: 4.1 AU - 5.82 AU

Year: 7625 Days

Day: 11.9 Hours

Environment

Temp: -220 °C

Axial Tilt: 7.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 63,585,787 km

• M1: 126,709 km (0.101 R)
• M2: 432,039 km (0.048 R)
• M3: 901,477 km (0.087 R)
• M4: 1,531,733 km (0.12 R)
• M5: 2,104,692 km (0.099 R)
• M6: 2,774,592 km (0.119 R)
• M7: 3,148,736 km (0.105 R)
• M8: 3,556,540 km (0.103 R)
• M9: 4,423,459 km (0.104 R)
• M10: 5,085,729 km (0.113 R)
• M11: 6,606,990 km (0.077 R)
• M12: 7,049,351 km (0.072 R)
• M13: 7,871,092 km (0.1 R)
• M14: 10,228,006 km (0.11 R)
• M15: 17,435,781 km (0.089 R)
• M16: 23,684,185 km (0.046 R)
• M17: 25,968,994 km (0.12 R)
• M18: 27,352,026 km (0.09 R)
• M19: 28,013,847 km (0.089 R)
• M20: 28,396,967 km (0.077 R)
• M21: 28,880,617 km (0.062 R)
• M22: 29,369,802 km (0.053 R)
• M23: 32,211,862 km (0.105 R)
• M24: 37,270,814 km (0.102 R)
• M25: 39,028,738 km (0.11 R)

Planet 8 - Ice Giant

Semi-Major Axis: 5.67 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 262.7

Radius: 4.2

Gravity: 14.89 G

Time & Orbit

Eccentricity (e): 0.195

Orbit Range: 4.56 AU - 6.78 AU

Year: 9319 Days

Day: 16.4 Hours

Environment

Temp: -233 °C

Axial Tilt: 2.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 63,585,787 km

• M1: 53,406 km (0.112 R)
• M2: 239,357 km (0.08 R)
• M3: 493,823 km (0.062 R)
• M4: 1,705,416 km (0.069 R)
• M5: 1,872,517 km (0.111 R)
• M6: 2,004,911 km (0.103 R)
• M7: 2,159,445 km (0.036 R)
• M8: 2,440,540 km (0.116 R)
• M9: 3,115,675 km (0.08 R)
• M10: 4,478,661 km (0.088 R)
• M11: 5,541,554 km (0.118 R)
• M12: 6,558,371 km (0.118 R)
• M13: 7,182,044 km (0.111 R)
• M14: 12,076,737 km (0.096 R)
• M15: 14,787,899 km (0.035 R)
• M16: 20,138,865 km (0.067 R)
• M17: 21,374,245 km (0.114 R)
• M18: 23,835,279 km (0.07 R)
• M19: 26,053,217 km (0.08 R)
• M20: 28,584,712 km (0.08 R)
• M21: 31,084,493 km (0.069 R)

Planet 9 - Ice Giant

Semi-Major Axis: 7.04 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 961.9

Radius: 6.1

Gravity: 25.85 G

Time & Orbit

Eccentricity (e): 0.171

Orbit Range: 5.84 AU - 8.24 AU

Year: 12893 Days

Day: 21.4 Hours

Environment

Temp: -223 °C

Axial Tilt: 3.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 63,585,787 km

• M1: 79,137 km (0.082 R)
• M2: 321,635 km (0.108 R)
• M3: 1,129,015 km (0.102 R)
• M4: 2,004,761 km (0.106 R)
• M5: 2,442,185 km (0.102 R)
• M6: 2,845,800 km (0.116 R)
• M7: 3,318,978 km (0.111 R)
• M8: 3,901,512 km (0.106 R)
• M9: 4,985,798 km (0.088 R)
• M10: 5,672,452 km (0.115 R)
• M11: 6,925,484 km (0.065 R)
• M12: 8,500,450 km (0.108 R)
• M13: 10,187,914 km (0.105 R)
• M14: 10,413,508 km (0.078 R)
• M15: 12,531,664 km (0.118 R)
• M16: 12,725,543 km (0.078 R)
• M17: 13,119,434 km (0.101 R)
• M18: 14,776,829 km (0.071 R)
• M19: 17,759,960 km (0.099 R)
• M20: 18,668,767 km (0.092 R)
• M21: 21,304,382 km (0.086 R)
• M22: 22,615,159 km (0.117 R)
• M23: 30,214,581 km (0.078 R)
• M24: 35,093,267 km (0.048 R)
• M25: 41,323,121 km (0.089 R)
• M26: 41,897,277 km (0.066 R)
• M27: 42,622,528 km (0.102 R)
• M28: 48,410,021 km (0.08 R)
• M29: 49,048,055 km (0.044 R)
• M30: 53,672,425 km (0.087 R)
• M31: 54,355,938 km (0.087 R)
• M32: 61,326,750 km (0.076 R)
• M33: 61,886,395 km (0.095 R)
• M34: 63,395,389 km (0.031 R)

Kuiper Belt

Range: 30 - 45 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 193 - 11,198 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit