🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.28 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.55 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 178.3

Radius: 15

Gravity: 0.79 G

Time & Orbit

Eccentricity (e): 0.074

Orbit Range: 0.51 AU - 0.59 AU

Year: 282 Days

Day: 12.3 Hours

Environment

Temp: -138 °C

Axial Tilt: 9.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 70,682,434 km

• M1: 186,549 km (0.112 R)
• M2: 710,889 km (0.108 R)
• M3: 1,577,061 km (0.043 R)
• M4: 2,045,452 km (0.103 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.74 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 277.1

Radius: 14.4

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.014

Orbit Range: 0.73 AU - 0.75 AU

Year: 439 Days

Day: 11.7 Hours

Environment

Temp: -168 °C

Axial Tilt: 37.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 70,682,434 km

• M1: 183,257 km (0.1 R)
• M2: 656,286 km (0.078 R)
• M3: 1,178,682 km (0.087 R)
• M4: 1,733,690 km (0.09 R)
• M5: 2,283,013 km (0.062 R)
• M6: 2,761,726 km (0.082 R)
• M7: 3,381,061 km (0.087 R)
• M8: 3,833,146 km (0.104 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.12 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 326.1

Radius: 8.4

Gravity: 4.62 G

Time & Orbit

Eccentricity (e): 0.219

Orbit Range: 0.87 AU - 1.37 AU

Year: 818 Days

Day: 9.2 Hours

Environment

Temp: -174 °C

Axial Tilt: 15.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 70,682,434 km

• M1: 104,419 km (0.064 R)
• M2: 417,976 km (0.115 R)
• M3: 759,060 km (0.113 R)
• M4: 1,087,277 km (0.064 R)
• M5: 2,048,294 km (0.052 R)
• M6: 2,477,790 km (0.097 R)
• M7: 3,095,180 km (0.116 R)
• M8: 3,530,659 km (0.097 R)
• M9: 4,208,637 km (0.089 R)
• M10: 4,937,627 km (0.064 R)
• M11: 5,306,685 km (0.088 R)
• M12: 5,876,354 km (0.103 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.21 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 102.5

Radius: 12.5

Gravity: 0.66 G

Time & Orbit

Eccentricity (e): 0.026

Orbit Range: 2.15 AU - 2.27 AU

Year: 2268 Days

Day: 11.7 Hours

Environment

Temp: -203 °C

Axial Tilt: 23 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 70,682,434 km

• M1: 155,432 km (0.11 R)
• M2: 561,441 km (0.096 R)
• M3: 1,419,385 km (0.095 R)
• M4: 1,888,224 km (0.045 R)
• M5: 2,527,456 km (0.086 R)
• M6: 2,992,705 km (0.075 R)
• M7: 4,589,513 km (0.093 R)
• M8: 8,339,184 km (0.063 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.88 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 191.1

Radius: 9

Gravity: 2.36 G

Time & Orbit

Eccentricity (e): 0.046

Orbit Range: 2.75 AU - 3.01 AU

Year: 3374 Days

Day: 9.2 Hours

Environment

Temp: -219 °C

Axial Tilt: 43.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 70,682,434 km

• M1: 111,899 km (0.108 R)
• M2: 490,831 km (0.117 R)
• M3: 1,127,669 km (0.115 R)
• M4: 1,466,658 km (0.063 R)
• M5: 2,052,333 km (0.097 R)
• M6: 2,843,856 km (0.099 R)
• M7: 3,222,039 km (0.044 R)
• M8: 3,582,420 km (0.046 R)
• M9: 6,647,681 km (0.111 R)
• M10: 7,017,038 km (0.096 R)
• M11: 7,455,958 km (0.11 R)
• M12: 8,208,136 km (0.113 R)
• M13: 9,795,669 km (0.106 R)
• M14: 14,466,563 km (0.028 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.94 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 927.9

Radius: 13.4

Gravity: 5.17 G

Time & Orbit

Eccentricity (e): 0.125

Orbit Range: 2.57 AU - 3.31 AU

Year: 3480 Days

Day: 13.8 Hours

Environment

Temp: -218 °C

Axial Tilt: 39.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 70,682,434 km

• M1: 166,652 km (0.117 R)
• M2: 635,492 km (0.049 R)
• M3: 1,137,991 km (0.085 R)
• M4: 1,835,117 km (0.068 R)
• M5: 2,590,138 km (0.094 R)
• M6: 3,504,330 km (0.11 R)
• M7: 3,960,753 km (0.117 R)
• M8: 5,741,865 km (0.113 R)
• M9: 7,326,406 km (0.118 R)
• M10: 7,937,813 km (0.029 R)
• M11: 9,032,570 km (0.117 R)
• M12: 9,656,393 km (0.094 R)
• M13: 10,946,824 km (0.119 R)
• M14: 11,431,372 km (0.057 R)
• M15: 14,280,014 km (0.079 R)
• M16: 14,806,000 km (0.114 R)
• M17: 15,563,863 km (0.089 R)
• M18: 16,404,603 km (0.093 R)
• M19: 17,098,737 km (0.106 R)
• M20: 18,545,947 km (0.101 R)
• M21: 20,269,913 km (0.077 R)
• M22: 22,308,184 km (0.081 R)
• M23: 23,304,805 km (0.072 R)
• M24: 25,082,028 km (0.026 R)

Planet 7 - Ice Giant

Semi-Major Axis: 5.84 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 629.8

Radius: 7.5

Gravity: 11.2 G

Time & Orbit

Eccentricity (e): 0.035

Orbit Range: 5.64 AU - 6.04 AU

Year: 9742 Days

Day: 22.3 Hours

Environment

Temp: -221 °C

Axial Tilt: 26.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 70,682,434 km

• M1: 93,499 km (0.056 R)
• M2: 406,757 km (0.044 R)
• M3: 833,559 km (0.105 R)
• M4: 1,185,114 km (0.093 R)
• M5: 1,691,503 km (0.111 R)
• M6: 2,086,890 km (0.117 R)
• M7: 2,562,013 km (0.066 R)
• M8: 2,910,277 km (0.106 R)
• M9: 4,067,117 km (0.066 R)
• M10: 4,600,733 km (0.115 R)
• M11: 4,869,261 km (0.119 R)
• M12: 6,409,820 km (0.075 R)
• M13: 6,707,520 km (0.104 R)
• M14: 7,014,495 km (0.031 R)
• M15: 9,576,807 km (0.038 R)
• M16: 11,252,752 km (0.114 R)
• M17: 12,188,487 km (0.107 R)
• M18: 12,530,766 km (0.074 R)
• M19: 13,657,089 km (0.043 R)
• M20: 13,902,579 km (0.078 R)
• M21: 14,465,815 km (0.114 R)
• M22: 15,044,011 km (0.106 R)
• M23: 16,522,337 km (0.035 R)
• M24: 23,672,517 km (0.047 R)
• M25: 24,205,683 km (0.084 R)
• M26: 25,295,953 km (0.068 R)
• M27: 26,896,201 km (0.109 R)
• M28: 29,677,076 km (0.117 R)
• M29: 34,311,917 km (0.092 R)
• M30: 42,199,315 km (0.104 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.94 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 469.4

Radius: 3.1

Gravity: 48.84 G

Time & Orbit

Eccentricity (e): 0.207

Orbit Range: 7.88 AU - 12 AU

Year: 21632 Days

Day: 18.8 Hours

Environment

Temp: -227 °C

Axial Tilt: 25.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 70,682,434 km

• M1: 38,596 km (0.047 R)
• M2: 151,692 km (0.096 R)
• M3: 317,147 km (0.034 R)
• M4: 629,508 km (0.109 R)
• M5: 1,027,438 km (0.114 R)
• M6: 1,309,131 km (0.107 R)
• M7: 1,556,267 km (0.093 R)
• M8: 2,143,139 km (0.117 R)
• M9: 3,119,564 km (0.092 R)
• M10: 4,069,960 km (0.1 R)
• M11: 4,229,132 km (0.073 R)
• M12: 6,736,991 km (0.09 R)
• M13: 10,319,411 km (0.088 R)
• M14: 17,368,462 km (0.091 R)
• M15: 18,557,466 km (0.087 R)
• M16: 23,651,723 km (0.041 R)
• M17: 24,687,239 km (0.066 R)
• M18: 26,626,626 km (0.04 R)
• M19: 38,563,339 km (0.083 R)
• M20: 42,661,573 km (0.059 R)
• M21: 43,576,065 km (0.112 R)
• M22: 48,016,429 km (0.063 R)
• M23: 48,344,646 km (0.111 R)
• M24: 52,400,993 km (0.09 R)
• M25: 55,227,644 km (0.068 R)
• M26: 58,340,477 km (0.103 R)
• M27: 58,901,618 km (0.054 R)
• M28: 59,277,857 km (0.085 R)

Kuiper Belt

Range: 30 - 59 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 357 - 10,455 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit