🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.55 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 1.1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 602.9

Radius: 14.4

Gravity: 2.91 G

Time & Orbit

Eccentricity (e): 0.087

Orbit Range: 1 AU - 1.2 AU

Year: 757 Days

Day: 6.7 Hours

Environment

Temp: -154 °C

Axial Tilt: 8.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 74,165,761 km

• M1: 179,069 km (0.102 R)
• M2: 709,244 km (0.106 R)
• M3: 1,196,185 km (0.092 R)
• M4: 1,881,193 km (0.099 R)
• M5: 2,448,768 km (0.106 R)
• M6: 2,924,938 km (0.065 R)
• M7: 3,476,804 km (0.115 R)
• M8: 4,483,598 km (0.107 R)
• M9: 5,620,841 km (0.081 R)
• M10: 6,098,956 km (0.074 R)
• M11: 7,181,745 km (0.073 R)
• M12: 8,098,930 km (0.106 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.22 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 351.2

Radius: 10.1

Gravity: 3.44 G

Time & Orbit

Eccentricity (e): 0.113

Orbit Range: 1.08 AU - 1.36 AU

Year: 884 Days

Day: 12.3 Hours

Environment

Temp: -163 °C

Axial Tilt: 19.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 74,165,761 km

• M1: 126,261 km (0.089 R)
• M2: 457,769 km (0.113 R)
• M3: 912,996 km (0.064 R)
• M4: 2,191,310 km (0.111 R)
• M5: 2,805,409 km (0.092 R)
• M6: 3,184,340 km (0.082 R)
• M7: 4,284,184 km (0.095 R)
• M8: 4,887,961 km (0.065 R)
• M9: 5,403,924 km (0.111 R)
• M10: 5,899,093 km (0.071 R)
• M11: 7,434,715 km (0.092 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.53 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 991.3

Radius: 9.1

Gravity: 11.97 G

Time & Orbit

Eccentricity (e): 0.007

Orbit Range: 1.52 AU - 1.54 AU

Year: 1241 Days

Day: 14.3 Hours

Environment

Temp: -176 °C

Axial Tilt: 29.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 74,165,761 km

• M1: 113,545 km (0.062 R)
• M2: 572,511 km (0.109 R)
• M3: 931,546 km (0.065 R)
• M4: 1,357,002 km (0.103 R)
• M5: 2,005,359 km (0.091 R)
• M6: 2,723,728 km (0.115 R)
• M7: 3,180,002 km (0.106 R)
• M8: 3,587,806 km (0.113 R)
• M9: 4,119,327 km (0.068 R)
• M10: 4,566,026 km (0.093 R)
• M11: 4,942,414 km (0.046 R)
• M12: 5,534,972 km (0.077 R)
• M13: 5,986,458 km (0.078 R)
• M14: 6,317,069 km (0.087 R)
• M15: 7,144,944 km (0.104 R)
• M16: 8,015,005 km (0.116 R)
• M17: 9,673,148 km (0.104 R)
• M18: 10,030,388 km (0.104 R)
• M19: 10,329,284 km (0.101 R)
• M20: 10,840,460 km (0.112 R)
• M21: 11,584,560 km (0.084 R)
• M22: 13,372,703 km (0.076 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.15 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 42.2

Radius: 12.5

Gravity: 0.27 G

Time & Orbit

Eccentricity (e): 0.199

Orbit Range: 1.72 AU - 2.58 AU

Year: 2068 Days

Day: 9.1 Hours

Environment

Temp: -196 °C

Axial Tilt: 49.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 74,165,761 km

• M1: 155,432 km (0.078 R)
• M2: 764,445 km (0.05 R)
• M3: 1,333,964 km (0.059 R)
• M4: 2,224,371 km (0.053 R)
• M5: 3,235,204 km (0.073 R)
• M6: 3,668,140 km (0.111 R)
• M7: 5,305,488 km (0.106 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.64 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 686.6

Radius: 14.7

Gravity: 3.18 G

Time & Orbit

Eccentricity (e): 0.027

Orbit Range: 3.54 AU - 3.74 AU

Year: 4556 Days

Day: 7.4 Hours

Environment

Temp: -199 °C

Axial Tilt: 24.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 74,165,761 km

• M1: 183,108 km (0.039 R)
• M2: 763,248 km (0.12 R)
• M3: 1,477,578 km (0.077 R)
• M4: 2,258,629 km (0.091 R)
• M5: 3,093,983 km (0.078 R)
• M6: 4,336,543 km (0.043 R)
• M7: 5,138,537 km (0.051 R)
• M8: 5,717,182 km (0.104 R)
• M9: 6,778,878 km (0.09 R)
• M10: 8,632,096 km (0.084 R)
• M11: 11,025,662 km (0.032 R)
• M12: 11,851,143 km (0.092 R)
• M13: 16,201,749 km (0.032 R)
• M14: 19,942,443 km (0.067 R)
• M15: 21,099,134 km (0.09 R)
• M16: 22,372,212 km (0.095 R)
• M17: 23,996,994 km (0.115 R)
• M18: 26,257,418 km (0.067 R)

Planet 6 - Ice Giant

Semi-Major Axis: 6.12 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 346.1

Radius: 7.8

Gravity: 5.69 G

Time & Orbit

Eccentricity (e): 0.19

Orbit Range: 4.96 AU - 7.28 AU

Year: 9932 Days

Day: 22.2 Hours

Environment

Temp: -222 °C

Axial Tilt: 35.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 74,165,761 km

• M1: 98,435 km (0.101 R)
• M2: 473,776 km (0.097 R)
• M3: 1,110,315 km (0.073 R)
• M4: 1,509,443 km (0.1 R)
• M5: 1,895,255 km (0.07 R)
• M6: 2,615,120 km (0.114 R)
• M7: 3,326,009 km (0.09 R)
• M8: 3,597,530 km (0.096 R)
• M9: 4,341,779 km (0.109 R)
• M10: 5,396,294 km (0.105 R)
• M11: 5,999,922 km (0.093 R)
• M12: 6,472,801 km (0.115 R)
• M13: 9,044,089 km (0.098 R)
• M14: 10,651,967 km (0.061 R)
• M15: 12,712,827 km (0.108 R)
• M16: 12,987,938 km (0.107 R)
• M17: 13,607,123 km (0.083 R)
• M18: 14,304,698 km (0.085 R)
• M19: 14,843,400 km (0.113 R)
• M20: 15,457,798 km (0.097 R)
• M21: 15,834,486 km (0.084 R)
• M22: 17,001,349 km (0.086 R)
• M23: 17,268,232 km (0.029 R)
• M24: 17,605,874 km (0.072 R)
• M25: 17,947,705 km (0.108 R)
• M26: 18,644,981 km (0.115 R)
• M27: 20,391,835 km (0.066 R)
• M28: 22,165,767 km (0.12 R)
• M29: 28,380,960 km (0.051 R)
• M30: 30,293,569 km (0.028 R)
• M31: 34,267,337 km (0.072 R)

Planet 7 - Ice Giant

Semi-Major Axis: 11 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 443

Radius: 3.9

Gravity: 29.13 G

Time & Orbit

Eccentricity (e): 0.183

Orbit Range: 8.99 AU - 13.01 AU

Year: 23933 Days

Day: 16.7 Hours

Environment

Temp: -222 °C

Axial Tilt: 140.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (37)

Outer Limit: 74,165,761 km

• M1: 50,863 km (0.048 R)
• M2: 176,525 km (0.12 R)
• M3: 329,863 km (0.078 R)
• M4: 473,627 km (0.089 R)
• M5: 677,678 km (0.077 R)
• M6: 1,125,126 km (0.07 R)
• M7: 2,256,534 km (0.111 R)
• M8: 2,454,452 km (0.08 R)
• M9: 2,640,103 km (0.11 R)
• M10: 4,245,288 km (0.119 R)
• M11: 4,547,326 km (0.1 R)
• M12: 4,792,069 km (0.053 R)
• M13: 4,935,683 km (0.095 R)
• M14: 5,156,788 km (0.118 R)
• M15: 6,107,333 km (0.064 R)
• M16: 7,842,220 km (0.073 R)
• M17: 8,348,160 km (0.103 R)
• M18: 11,208,172 km (0.09 R)
• M19: 13,064,681 km (0.063 R)
• M20: 15,898,215 km (0.032 R)
• M21: 16,138,020 km (0.096 R)
• M22: 16,299,137 km (0.114 R)
• M23: 17,712,687 km (0.04 R)
• M24: 23,250,651 km (0.057 R)
• M25: 24,715,663 km (0.112 R)
• M26: 27,597,516 km (0.074 R)
• M27: 27,828,046 km (0.091 R)
• M28: 28,176,310 km (0.063 R)
• M29: 29,961,013 km (0.111 R)
• M30: 34,415,589 km (0.106 R)
• M31: 36,452,663 km (0.047 R)
• M32: 38,139,080 km (0.089 R)
• M33: 38,712,488 km (0.082 R)
• M34: 43,198,330 km (0.101 R)
• M35: 45,726,534 km (0.115 R)
• M36: 51,249,239 km (0.11 R)
• M37: 72,839,652 km (0.1 R)

Kuiper Belt

Range: 30 - 47 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 371 - 17,069 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit