🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.36 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.72 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 406.1

Radius: 12.8

Gravity: 2.48 G

Time & Orbit

Eccentricity (e): 0.101

Orbit Range: 0.65 AU - 0.79 AU

Year: 407 Days

Day: 12.9 Hours

Environment

Temp: -153 °C

Axial Tilt: 36.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 71,777,475 km

• M1: 159,771 km (0.054 R)
• M2: 625,469 km (0.079 R)
• M3: 1,039,855 km (0.083 R)
• M4: 2,019,122 km (0.037 R)
• M5: 2,545,408 km (0.075 R)
• M6: 3,643,456 km (0.041 R)
• M7: 4,536,555 km (0.066 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.09 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 521.6

Radius: 12.7

Gravity: 3.23 G

Time & Orbit

Eccentricity (e): 0.236

Orbit Range: 0.83 AU - 1.35 AU

Year: 759 Days

Day: 5.7 Hours

Environment

Temp: -184 °C

Axial Tilt: 6.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 71,777,475 km

• M1: 157,975 km (0.044 R)
• M2: 653,593 km (0.08 R)
• M3: 1,183,768 km (0.109 R)
• M4: 1,720,824 km (0.106 R)
• M5: 2,182,633 km (0.08 R)
• M6: 2,672,416 km (0.115 R)
• M7: 3,298,483 km (0.109 R)
• M8: 3,792,156 km (0.112 R)
• M9: 5,272,876 km (0.07 R)
• M10: 6,543,261 km (0.098 R)
• M11: 7,087,798 km (0.054 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.51 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 258.8

Radius: 8.3

Gravity: 3.76 G

Time & Orbit

Eccentricity (e): 0.224

Orbit Range: 1.17 AU - 1.85 AU

Year: 1237 Days

Day: 9.5 Hours

Environment

Temp: -183 °C

Axial Tilt: 21.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 71,777,475 km

• M1: 103,522 km (0.105 R)
• M2: 366,365 km (0.036 R)
• M3: 798,105 km (0.079 R)
• M4: 1,109,567 km (0.098 R)
• M5: 1,620,295 km (0.107 R)
• M6: 2,013,887 km (0.093 R)
• M7: 2,373,819 km (0.088 R)
• M8: 3,289,508 km (0.047 R)
• M9: 5,305,638 km (0.035 R)
• M10: 6,136,804 km (0.099 R)
• M11: 6,594,274 km (0.067 R)
• M12: 7,007,613 km (0.116 R)
• M13: 7,742,737 km (0.101 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.14 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 337.4

Radius: 14

Gravity: 1.72 G

Time & Orbit

Eccentricity (e): 0.017

Orbit Range: 2.1 AU - 2.18 AU

Year: 2088 Days

Day: 11.1 Hours

Environment

Temp: -201 °C

Axial Tilt: 12.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 71,777,475 km

• M1: 174,132 km (0.112 R)
• M2: 663,915 km (0.113 R)
• M3: 1,356,254 km (0.092 R)
• M4: 2,054,876 km (0.105 R)
• M5: 2,520,275 km (0.049 R)
• M6: 3,028,160 km (0.051 R)
• M7: 3,604,411 km (0.109 R)
• M8: 4,879,733 km (0.106 R)
• M9: 6,014,134 km (0.045 R)
• M10: 8,831,660 km (0.096 R)
• M11: 11,304,513 km (0.058 R)
• M12: 11,952,122 km (0.062 R)
• M13: 13,125,268 km (0.1 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.61 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 411.8

Radius: 12.8

Gravity: 2.51 G

Time & Orbit

Eccentricity (e): 0.245

Orbit Range: 1.97 AU - 3.25 AU

Year: 2812 Days

Day: 14.5 Hours

Environment

Temp: -207 °C

Axial Tilt: 15.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 71,777,475 km

• M1: 159,172 km (0.115 R)
• M2: 633,098 km (0.114 R)
• M3: 1,125,724 km (0.046 R)
• M4: 1,565,542 km (0.078 R)
• M5: 2,309,642 km (0.093 R)
• M6: 3,838,233 km (0.111 R)
• M7: 4,481,503 km (0.08 R)
• M8: 5,379,988 km (0.097 R)
• M9: 6,962,435 km (0.099 R)
• M10: 8,198,412 km (0.086 R)
• M11: 9,369,913 km (0.111 R)
• M12: 12,043,676 km (0.072 R)
• M13: 13,555,661 km (0.061 R)
• M14: 15,427,729 km (0.107 R)
• M15: 16,351,346 km (0.081 R)
• M16: 17,311,466 km (0.095 R)

Asteroid Belt

Center: 4.23 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 6 - Ice Giant

Semi-Major Axis: 5.84 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 63.2

Radius: 3.4

Gravity: 5.47 G

Time & Orbit

Eccentricity (e): 0.165

Orbit Range: 4.88 AU - 6.8 AU

Year: 9411 Days

Day: 18.7 Hours

Environment

Temp: -228 °C

Axial Tilt: 6.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 71,777,475 km

• M1: 42,635 km (0.065 R)
• M2: 215,870 km (0.086 R)
• M3: 1,331,421 km (0.063 R)
• M4: 1,896,303 km (0.118 R)
• M5: 4,392,941 km (0.084 R)
• M6: 4,707,845 km (0.041 R)
• M7: 5,159,032 km (0.065 R)
• M8: 9,667,613 km (0.074 R)
• M9: 10,670,517 km (0.088 R)
• M10: 12,345,863 km (0.052 R)
• M11: 14,285,101 km (0.117 R)
• M12: 17,896,094 km (0.1 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.83 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 732.8

Radius: 3.2

Gravity: 71.56 G

Time & Orbit

Eccentricity (e): 0.081

Orbit Range: 6.28 AU - 7.38 AU

Year: 11903 Days

Day: 15.2 Hours

Environment

Temp: -236 °C

Axial Tilt: 38.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 71,777,475 km

• M1: 39,793 km (0.083 R)
• M2: 441,463 km (0.097 R)
• M3: 641,775 km (0.088 R)
• M4: 753,824 km (0.108 R)
• M5: 1,694,794 km (0.071 R)
• M6: 5,291,127 km (0.059 R)
• M7: 5,571,773 km (0.065 R)
• M8: 5,679,633 km (0.116 R)
• M9: 5,788,690 km (0.094 R)
• M10: 6,124,686 km (0.081 R)
• M11: 7,776,097 km (0.12 R)
• M12: 13,928,908 km (0.11 R)
• M13: 16,886,159 km (0.12 R)
• M14: 21,708,745 km (0.097 R)
• M15: 26,149,857 km (0.113 R)
• M16: 27,685,480 km (0.094 R)
• M17: 36,146,137 km (0.113 R)
• M18: 40,552,243 km (0.032 R)
• M19: 40,686,881 km (0.101 R)
• M20: 45,447,833 km (0.104 R)
• M21: 53,264,621 km (0.091 R)
• M22: 53,912,978 km (0.096 R)

Planet 8 - Ice Giant

Semi-Major Axis: 8.83 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 751.3

Radius: 5.2

Gravity: 27.78 G

Time & Orbit

Eccentricity (e): 0.046

Orbit Range: 8.42 AU - 9.24 AU

Year: 17497 Days

Day: 19.6 Hours

Environment

Temp: -237 °C

Axial Tilt: 33.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (39)

Outer Limit: 71,777,475 km

• M1: 64,776 km (0.105 R)
• M2: 245,041 km (0.042 R)
• M3: 448,943 km (0.04 R)
• M4: 914,641 km (0.109 R)
• M5: 1,106,426 km (0.099 R)
• M6: 1,429,707 km (0.081 R)
• M7: 1,742,366 km (0.089 R)
• M8: 2,263,715 km (0.117 R)
• M9: 3,355,031 km (0.111 R)
• M10: 4,518,005 km (0.096 R)
• M11: 5,153,198 km (0.105 R)
• M12: 5,608,723 km (0.087 R)
• M13: 6,384,089 km (0.084 R)
• M14: 8,296,698 km (0.083 R)
• M15: 8,553,408 km (0.083 R)
• M16: 9,355,402 km (0.05 R)
• M17: 14,421,684 km (0.111 R)
• M18: 16,502,740 km (0.114 R)
• M19: 21,249,181 km (0.113 R)
• M20: 22,514,180 km (0.088 R)
• M21: 23,520,675 km (0.086 R)
• M22: 26,277,614 km (0.107 R)
• M23: 27,962,236 km (0.095 R)
• M24: 29,124,461 km (0.069 R)
• M25: 29,836,996 km (0.106 R)
• M26: 33,188,138 km (0.107 R)
• M27: 36,233,651 km (0.058 R)
• M28: 42,417,579 km (0.082 R)
• M29: 44,416,954 km (0.112 R)
• M30: 44,729,913 km (0.027 R)
• M31: 45,360,468 km (0.1 R)
• M32: 52,343,248 km (0.104 R)
• M33: 54,462,451 km (0.077 R)
• M34: 54,641,520 km (0.103 R)
• M35: 55,724,608 km (0.045 R)
• M36: 56,271,538 km (0.067 R)
• M37: 57,006,213 km (0.111 R)
• M38: 62,133,830 km (0.114 R)
• M39: 65,920,751 km (0.033 R)

Kuiper Belt

Range: 30 - 54 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 199 - 13,296 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit