🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.31 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.61 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.18

Radius: 1.59

Gravity: 1.26 G

Time & Orbit

Eccentricity (e): 0.001

Orbit Range: 0.61 AU - 0.61 AU

Year: 308 Days

Day: 12.3 Hours

Environment

Temp: -129 °C

Axial Tilt: 9.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 61,408,072 km

• M1: 41,588 km (0.117 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 288.3

Radius: 10.3

Gravity: 2.72 G

Time & Orbit

Eccentricity (e): 0.098

Orbit Range: 0.66 AU - 0.8 AU

Year: 403 Days

Day: 10.1 Hours

Environment

Temp: -147 °C

Axial Tilt: 11.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 61,408,072 km

• M1: 128,056 km (0.045 R)
• M2: 575,054 km (0.1 R)
• M3: 998,865 km (0.083 R)
• M4: 1,472,492 km (0.068 R)
• M5: 2,062,655 km (0.073 R)
• M6: 3,409,186 km (0.1 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.76 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 905.6

Radius: 13.6

Gravity: 4.9 G

Time & Orbit

Eccentricity (e): 0.041

Orbit Range: 0.73 AU - 0.79 AU

Year: 428 Days

Day: 6.8 Hours

Environment

Temp: -142 °C

Axial Tilt: 38.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 61,408,072 km

• M1: 169,345 km (0.117 R)
• M2: 695,630 km (0.073 R)
• M3: 1,189,004 km (0.111 R)
• M4: 1,633,758 km (0.084 R)
• M5: 2,498,135 km (0.067 R)
• M6: 3,142,602 km (0.085 R)
• M7: 4,057,992 km (0.102 R)
• M8: 5,678,137 km (0.113 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.96 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 130.3

Radius: 12.3

Gravity: 0.86 G

Time & Orbit

Eccentricity (e): 0.033

Orbit Range: 0.93 AU - 0.99 AU

Year: 607 Days

Day: 13.1 Hours

Environment

Temp: -157 °C

Axial Tilt: 25.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 61,408,072 km

• M1: 153,039 km (0.106 R)
• M2: 560,543 km (0.098 R)
• M3: 1,026,690 km (0.093 R)
• M4: 1,537,417 km (0.111 R)
• M5: 1,955,543 km (0.108 R)
• M6: 3,729,475 km (0.047 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.14 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 988.6

Radius: 12

Gravity: 6.87 G

Time & Orbit

Eccentricity (e): 0.042

Orbit Range: 1.09 AU - 1.19 AU

Year: 786 Days

Day: 10.8 Hours

Environment

Temp: -175 °C

Axial Tilt: 38.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 61,408,072 km

• M1: 149,448 km (0.088 R)
• M2: 572,511 km (0.094 R)
• M3: 1,000,361 km (0.084 R)
• M4: 1,432,549 km (0.068 R)
• M5: 2,349,435 km (0.114 R)
• M6: 2,976,399 km (0.085 R)
• M7: 3,818,336 km (0.11 R)
• M8: 4,429,593 km (0.116 R)
• M9: 5,180,275 km (0.099 R)
• M10: 6,463,077 km (0.1 R)
• M11: 7,285,715 km (0.106 R)
• M12: 7,722,541 km (0.106 R)
• M13: 8,176,720 km (0.108 R)
• M14: 8,568,966 km (0.099 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.56 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 952.7

Radius: 9.7

Gravity: 10.13 G

Time & Orbit

Eccentricity (e): 0.153

Orbit Range: 2.17 AU - 2.95 AU

Year: 2645 Days

Day: 11.8 Hours

Environment

Temp: -199 °C

Axial Tilt: 11.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 61,408,072 km

• M1: 120,725 km (0.102 R)
• M2: 683,513 km (0.037 R)
• M3: 1,391,410 km (0.115 R)
• M4: 1,900,491 km (0.108 R)
• M5: 2,699,942 km (0.094 R)
• M6: 3,150,232 km (0.097 R)
• M7: 3,477,851 km (0.111 R)
• M8: 3,888,946 km (0.111 R)
• M9: 4,420,467 km (0.096 R)
• M10: 5,295,316 km (0.093 R)
• M11: 5,655,099 km (0.091 R)
• M12: 6,863,401 km (0.109 R)
• M13: 7,260,433 km (0.057 R)
• M14: 7,737,651 km (0.081 R)
• M15: 9,222,709 km (0.051 R)
• M16: 9,593,711 km (0.109 R)
• M17: 11,728,922 km (0.1 R)
• M18: 13,442,715 km (0.079 R)
• M19: 13,775,720 km (0.097 R)
• M20: 14,508,002 km (0.025 R)
• M21: 15,317,476 km (0.117 R)
• M22: 15,785,867 km (0.093 R)
• M23: 18,156,694 km (0.071 R)
• M24: 18,917,848 km (0.068 R)
• M25: 19,276,284 km (0.081 R)
• M26: 21,522,795 km (0.066 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.34 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 868.2

Radius: 11.8

Gravity: 6.24 G

Time & Orbit

Eccentricity (e): 0.106

Orbit Range: 2.99 AU - 3.69 AU

Year: 3941 Days

Day: 7.4 Hours

Environment

Temp: -207 °C

Axial Tilt: 7.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 61,408,072 km

• M1: 146,756 km (0.118 R)
• M2: 539,899 km (0.111 R)
• M3: 957,127 km (0.075 R)
• M4: 1,451,698 km (0.066 R)
• M5: 1,843,345 km (0.087 R)
• M6: 3,593,191 km (0.059 R)
• M7: 4,069,511 km (0.117 R)
• M8: 6,048,691 km (0.077 R)
• M9: 6,567,347 km (0.113 R)
• M10: 7,834,889 km (0.106 R)
• M11: 8,414,880 km (0.075 R)
• M12: 10,116,556 km (0.112 R)
• M13: 11,295,986 km (0.104 R)
• M14: 11,895,574 km (0.104 R)
• M15: 12,516,255 km (0.106 R)
• M16: 13,058,398 km (0.115 R)
• M17: 13,667,411 km (0.067 R)
• M18: 14,562,754 km (0.115 R)
• M19: 18,161,481 km (0.093 R)
• M20: 19,767,115 km (0.091 R)
• M21: 21,887,216 km (0.102 R)
• M22: 23,480,882 km (0.092 R)
• M23: 24,079,124 km (0.066 R)
• M24: 24,918,368 km (0.082 R)
• M25: 25,698,072 km (0.103 R)
• M26: 26,816,914 km (0.058 R)

Asteroid Belt

Center: 5.26 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 8 - Ice Giant

Semi-Major Axis: 7.17 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 937.3

Radius: 7.3

Gravity: 17.59 G

Time & Orbit

Eccentricity (e): 0.042

Orbit Range: 6.87 AU - 7.47 AU

Year: 12396 Days

Day: 16.1 Hours

Environment

Temp: -232 °C

Axial Tilt: 35.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 61,408,072 km

• M1: 143,315 km (0.104 R)
• M2: 683,363 km (0.109 R)
• M3: 1,297,762 km (0.09 R)
• M4: 1,540,260 km (0.094 R)
• M5: 2,314,429 km (0.048 R)
• M6: 3,196,757 km (0.114 R)
• M7: 3,869,798 km (0.1 R)
• M8: 5,103,232 km (0.109 R)
• M9: 8,913,041 km (0.111 R)
• M10: 12,942,011 km (0.077 R)
• M11: 13,335,304 km (0.112 R)
• M12: 13,804,293 km (0.098 R)
• M13: 14,633,813 km (0.066 R)
• M14: 17,321,638 km (0.089 R)
• M15: 17,719,269 km (0.073 R)
• M16: 19,286,008 km (0.091 R)
• M17: 19,541,521 km (0.045 R)
• M18: 20,234,010 km (0.11 R)
• M19: 20,586,462 km (0.087 R)
• M20: 21,212,828 km (0.105 R)
• M21: 22,977,335 km (0.1 R)
• M22: 30,784,100 km (0.09 R)
• M23: 32,556,835 km (0.051 R)
• M24: 35,024,601 km (0.057 R)
• M25: 39,228,152 km (0.089 R)
• M26: 39,501,617 km (0.107 R)
• M27: 41,876,782 km (0.052 R)
• M28: 42,881,930 km (0.062 R)
• M29: 43,172,001 km (0.079 R)
• M30: 49,411,728 km (0.115 R)
• M31: 51,509,090 km (0.051 R)
• M32: 57,449,472 km (0.096 R)
• M33: 57,978,899 km (0.084 R)

Kuiper Belt

Range: 30 - 55 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 539 - 12,593 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit