🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.27 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.54 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 679.6

Radius: 9.1

Gravity: 8.21 G

Time & Orbit

Eccentricity (e): 0.063

Orbit Range: 0.51 AU - 0.57 AU

Year: 279 Days

Day: 11.7 Hours

Environment

Temp: -136 °C

Axial Tilt: 26.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 63,840,363 km

• M1: 113,395 km (0.077 R)
• M2: 465,848 km (0.091 R)
• M3: 769,083 km (0.1 R)
• M4: 1,109,567 km (0.092 R)
• M5: 1,484,011 km (0.072 R)
• M6: 1,942,229 km (0.119 R)
• M7: 2,241,275 km (0.074 R)
• M8: 2,828,447 km (0.047 R)
• M9: 3,352,039 km (0.113 R)
• M10: 3,809,211 km (0.059 R)
• M11: 4,307,671 km (0.08 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.55 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 691.8

Radius: 11.8

Gravity: 4.97 G

Time & Orbit

Eccentricity (e): 0.032

Orbit Range: 0.53 AU - 0.57 AU

Year: 287 Days

Day: 14.7 Hours

Environment

Temp: -135 °C

Axial Tilt: 17.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 63,840,363 km

• M1: 146,756 km (0.118 R)
• M2: 515,514 km (0.115 R)
• M3: 924,515 km (0.091 R)
• M4: 1,469,350 km (0.029 R)
• M5: 1,842,148 km (0.082 R)
• M6: 2,214,946 km (0.088 R)
• M7: 2,938,252 km (0.061 R)
• M8: 3,641,063 km (0.106 R)
• M9: 4,038,993 km (0.09 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 740.5

Radius: 14.4

Gravity: 3.57 G

Time & Orbit

Eccentricity (e): 0.117

Orbit Range: 0.7 AU - 0.88 AU

Year: 494 Days

Day: 10.8 Hours

Environment

Temp: -158 °C

Axial Tilt: 31.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 63,840,363 km

• M1: 179,069 km (0.095 R)
• M2: 646,113 km (0.049 R)
• M3: 1,105,678 km (0.108 R)
• M4: 1,812,528 km (0.099 R)
• M5: 2,294,682 km (0.049 R)
• M6: 3,130,784 km (0.093 R)
• M7: 3,795,298 km (0.051 R)
• M8: 4,523,092 km (0.116 R)
• M9: 5,876,952 km (0.089 R)
• M10: 6,333,824 km (0.12 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.94 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 146.2

Radius: 12.9

Gravity: 0.88 G

Time & Orbit

Eccentricity (e): 0.027

Orbit Range: 0.91 AU - 0.97 AU

Year: 641 Days

Day: 12.5 Hours

Environment

Temp: -166 °C

Axial Tilt: 14.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 63,840,363 km

• M1: 160,369 km (0.112 R)
• M2: 594,053 km (0.093 R)
• M3: 1,235,828 km (0.087 R)
• M4: 1,665,473 km (0.057 R)
• M5: 2,236,488 km (0.086 R)
• M6: 2,946,180 km (0.068 R)
• M7: 3,539,785 km (0.106 R)
• M8: 4,224,793 km (0.054 R)

Planet 5 - Gas Giant

Semi-Major Axis: 0.96 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 82.3

Radius: 12.8

Gravity: 0.5 G

Time & Orbit

Eccentricity (e): 0.039

Orbit Range: 0.92 AU - 1 AU

Year: 661 Days

Day: 14.8 Hours

Environment

Temp: -169 °C

Axial Tilt: 21.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 63,840,363 km

• M1: 166,951 km (0.05 R)
• M2: 587,471 km (0.097 R)
• M3: 1,047,185 km (0.104 R)
• M4: 1,453,044 km (0.116 R)
• M5: 1,918,892 km (0.092 R)
• M6: 2,660,449 km (0.075 R)
• M7: 3,200,048 km (0.101 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.76 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 413.5

Radius: 15

Gravity: 1.84 G

Time & Orbit

Eccentricity (e): 0.176

Orbit Range: 1.45 AU - 2.07 AU

Year: 1641 Days

Day: 11.4 Hours

Environment

Temp: -206 °C

Axial Tilt: 24.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 63,840,363 km

• M1: 186,698 km (0.114 R)
• M2: 660,624 km (0.089 R)
• M3: 1,276,070 km (0.111 R)
• M4: 1,877,453 km (0.091 R)
• M5: 2,967,872 km (0.102 R)
• M6: 3,782,732 km (0.101 R)
• M7: 4,323,079 km (0.063 R)
• M8: 5,948,460 km (0.088 R)
• M9: 7,072,987 km (0.12 R)
• M10: 8,758,806 km (0.105 R)
• M11: 10,023,057 km (0.113 R)
• M12: 11,440,348 km (0.091 R)
• M13: 12,071,950 km (0.03 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.96 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 921.7

Radius: 13.4

Gravity: 5.13 G

Time & Orbit

Eccentricity (e): 0.215

Orbit Range: 3.11 AU - 4.81 AU

Year: 5539 Days

Day: 10.4 Hours

Environment

Temp: -223 °C

Axial Tilt: 21.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 63,840,363 km

• M1: 166,951 km (0.077 R)
• M2: 769,681 km (0.113 R)
• M3: 1,204,562 km (0.112 R)
• M4: 1,702,873 km (0.082 R)
• M5: 2,389,527 km (0.117 R)
• M6: 2,912,970 km (0.1 R)
• M7: 3,647,046 km (0.117 R)
• M8: 5,248,641 km (0.084 R)
• M9: 5,854,363 km (0.086 R)
• M10: 6,438,842 km (0.098 R)
• M11: 7,649,837 km (0.106 R)
• M12: 10,803,509 km (0.109 R)
• M13: 12,351,698 km (0.112 R)
• M14: 13,043,289 km (0.112 R)
• M15: 14,797,025 km (0.109 R)
• M16: 15,577,327 km (0.117 R)
• M17: 16,767,079 km (0.093 R)
• M18: 18,560,907 km (0.103 R)
• M19: 21,222,552 km (0.042 R)
• M20: 24,375,926 km (0.072 R)
• M21: 26,150,905 km (0.075 R)
• M22: 27,025,603 km (0.045 R)
• M23: 30,241,808 km (0.09 R)
• M24: 30,721,269 km (0.112 R)
• M25: 31,892,471 km (0.092 R)
• M26: 34,950,850 km (0.099 R)
• M27: 35,585,294 km (0.111 R)

Planet 8 - Ice Giant

Semi-Major Axis: 6.97 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 967.3

Radius: 7.2

Gravity: 18.66 G

Time & Orbit

Eccentricity (e): 0.129

Orbit Range: 6.07 AU - 7.87 AU

Year: 12935 Days

Day: 23.9 Hours

Environment

Temp: -222 °C

Axial Tilt: 39.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 63,840,363 km

• M1: 89,609 km (0.081 R)
• M2: 402,717 km (0.06 R)
• M3: 1,027,139 km (0.104 R)
• M4: 1,400,984 km (0.066 R)
• M5: 2,257,881 km (0.065 R)
• M6: 3,138,863 km (0.081 R)
• M7: 3,842,122 km (0.095 R)
• M8: 4,387,556 km (0.108 R)
• M9: 5,229,194 km (0.107 R)
• M10: 5,669,610 km (0.09 R)
• M11: 6,458,140 km (0.051 R)
• M12: 7,139,858 km (0.087 R)
• M13: 7,498,294 km (0.081 R)
• M14: 8,496,561 km (0.106 R)
• M15: 9,851,768 km (0.1 R)
• M16: 11,833,790 km (0.102 R)
• M17: 13,116,143 km (0.119 R)
• M18: 15,283,218 km (0.119 R)
• M19: 15,579,122 km (0.069 R)
• M20: 17,355,747 km (0.117 R)
• M21: 17,597,048 km (0.107 R)
• M22: 29,764,591 km (0.11 R)
• M23: 31,046,196 km (0.086 R)
• M24: 33,221,947 km (0.118 R)
• M25: 37,337,684 km (0.108 R)
• M26: 51,037,857 km (0.101 R)

Kuiper Belt

Range: 30 - 48 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 355 - 15,086 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit