🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.3 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.6 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 888.2

Radius: 14.2

Gravity: 4.4 G

Time & Orbit

Eccentricity (e): 0.016

Orbit Range: 0.59 AU - 0.61 AU

Year: 310 Days

Day: 13.4 Hours

Environment

Temp: -145 °C

Axial Tilt: 29.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 45,628,074 km

• M1: 177,273 km (0.116 R)
• M2: 624,422 km (0.113 R)
• M3: 1,143,377 km (0.107 R)
• M4: 1,756,578 km (0.109 R)
• M5: 2,277,777 km (0.118 R)
• M6: 3,171,026 km (0.088 R)
• M7: 4,182,756 km (0.064 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.62 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 848.9

Radius: 12.1

Gravity: 5.8 G

Time & Orbit

Eccentricity (e): 0.142

Orbit Range: 0.53 AU - 0.71 AU

Year: 326 Days

Day: 10.9 Hours

Environment

Temp: -143 °C

Axial Tilt: 4.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 45,628,074 km

• M1: 150,495 km (0.112 R)
• M2: 544,686 km (0.116 R)
• M3: 922,570 km (0.102 R)
• M4: 1,525,001 km (0.076 R)
• M5: 2,037,822 km (0.08 R)
• M6: 2,850,139 km (0.092 R)
• M7: 3,696,713 km (0.087 R)
• M8: 4,549,720 km (0.042 R)
• M9: 4,993,577 km (0.12 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.74 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 955.9

Radius: 10.9

Gravity: 8.05 G

Time & Orbit

Eccentricity (e): 0.042

Orbit Range: 0.71 AU - 0.77 AU

Year: 424 Days

Day: 5.9 Hours

Environment

Temp: -167 °C

Axial Tilt: 34.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 45,628,074 km

• M1: 136,583 km (0.12 R)
• M2: 709,393 km (0.116 R)
• M3: 1,174,493 km (0.093 R)
• M4: 1,521,111 km (0.078 R)
• M5: 2,055,176 km (0.114 R)
• M6: 2,732,405 km (0.095 R)
• M7: 3,199,450 km (0.108 R)
• M8: 3,578,082 km (0.108 R)
• M9: 3,959,257 km (0.118 R)
• M10: 5,573,418 km (0.07 R)
• M11: 6,253,789 km (0.117 R)

Planet 4 - Gas Giant

Semi-Major Axis: 5.27 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 886.7

Radius: 9.3

Gravity: 10.25 G

Time & Orbit

Eccentricity (e): 0.026

Orbit Range: 5.13 AU - 5.41 AU

Year: 8068 Days

Day: 14.1 Hours

Environment

Temp: -233 °C

Axial Tilt: 32.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 45,628,074 km

• M1: 115,789 km (0.094 R)
• M2: 482,304 km (0.054 R)
• M3: 1,183,170 km (0.101 R)
• M4: 1,500,317 km (0.118 R)
• M5: 2,692,612 km (0.12 R)
• M6: 3,296,688 km (0.119 R)
• M7: 3,832,548 km (0.074 R)
• M8: 5,140,781 km (0.084 R)
• M9: 5,794,075 km (0.12 R)
• M10: 7,108,292 km (0.119 R)
• M11: 8,346,813 km (0.084 R)
• M12: 9,436,933 km (0.06 R)
• M13: 9,967,257 km (0.069 R)
• M14: 10,929,770 km (0.076 R)
• M15: 11,460,543 km (0.067 R)
• M16: 12,574,000 km (0.106 R)
• M17: 15,209,316 km (0.088 R)
• M18: 15,737,247 km (0.113 R)
• M19: 16,690,634 km (0.049 R)
• M20: 19,242,176 km (0.082 R)
• M21: 23,148,924 km (0.096 R)
• M22: 23,847,696 km (0.101 R)
• M23: 25,471,431 km (0.107 R)
• M24: 26,879,745 km (0.102 R)
• M25: 27,847,045 km (0.073 R)
• M26: 29,442,656 km (0.069 R)
• M27: 29,748,584 km (0.084 R)
• M28: 30,159,679 km (0.091 R)
• M29: 39,322,399 km (0.115 R)
• M30: 40,947,032 km (0.074 R)

Planet 5 - Ice Giant

Semi-Major Axis: 6.11 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 341.1

Radius: 6.5

Gravity: 8.07 G

Time & Orbit

Eccentricity (e): 0.166

Orbit Range: 5.1 AU - 7.12 AU

Year: 10071 Days

Day: 20.1 Hours

Environment

Temp: -222 °C

Axial Tilt: 35.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 45,628,074 km

• M1: 81,082 km (0.098 R)
• M2: 346,319 km (0.036 R)
• M3: 634,145 km (0.059 R)
• M4: 1,009,935 km (0.055 R)
• M5: 1,449,753 km (0.092 R)
• M6: 1,742,217 km (0.098 R)
• M7: 1,979,180 km (0.104 R)
• M8: 2,204,175 km (0.1 R)
• M9: 2,573,981 km (0.108 R)
• M10: 3,067,355 km (0.103 R)
• M11: 3,303,570 km (0.036 R)
• M12: 5,104,130 km (0.075 R)
• M13: 6,179,589 km (0.092 R)
• M14: 6,522,766 km (0.057 R)
• M15: 7,209,720 km (0.113 R)
• M16: 8,812,362 km (0.109 R)
• M17: 10,207,661 km (0.102 R)
• M18: 11,744,031 km (0.059 R)
• M19: 11,952,870 km (0.118 R)
• M20: 12,979,261 km (0.06 R)
• M21: 14,180,532 km (0.073 R)
• M22: 15,516,740 km (0.116 R)
• M23: 16,409,540 km (0.042 R)
• M24: 19,220,634 km (0.068 R)
• M25: 20,324,666 km (0.112 R)
• M26: 21,782,946 km (0.113 R)
• M27: 25,425,205 km (0.11 R)
• M28: 28,975,761 km (0.073 R)
• M29: 29,646,259 km (0.106 R)
• M30: 32,227,271 km (0.101 R)
• M31: 35,604,742 km (0.062 R)

Planet 6 - Ice Giant

Semi-Major Axis: 9.78 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 271.7

Radius: 4.6

Gravity: 12.84 G

Time & Orbit

Eccentricity (e): 0.067

Orbit Range: 9.12 AU - 10.44 AU

Year: 20396 Days

Day: 15.6 Hours

Environment

Temp: -230 °C

Axial Tilt: 24.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 45,628,074 km

• M1: 57,296 km (0.078 R)
• M2: 229,633 km (0.066 R)
• M3: 573,708 km (0.058 R)
• M4: 1,246,898 km (0.085 R)
• M5: 2,380,701 km (0.092 R)
• M6: 2,831,289 km (0.104 R)
• M7: 3,211,268 km (0.116 R)
• M8: 3,928,440 km (0.09 R)
• M9: 4,189,788 km (0.112 R)
• M10: 4,462,504 km (0.049 R)
• M11: 4,746,890 km (0.118 R)
• M12: 5,282,450 km (0.091 R)
• M13: 5,820,105 km (0.101 R)
• M14: 6,159,692 km (0.084 R)
• M15: 6,795,932 km (0.089 R)
• M16: 11,501,832 km (0.1 R)
• M17: 12,096,783 km (0.078 R)
• M18: 12,587,314 km (0.077 R)
• M19: 12,963,703 km (0.091 R)
• M20: 13,412,496 km (0.095 R)
• M21: 19,968,473 km (0.049 R)
• M22: 21,530,724 km (0.07 R)
• M23: 23,359,857 km (0.067 R)
• M24: 32,293,842 km (0.03 R)
• M25: 34,318,051 km (0.08 R)
• M26: 35,547,296 km (0.12 R)
• M27: 36,678,556 km (0.078 R)
• M28: 38,485,698 km (0.118 R)
• M29: 39,277,968 km (0.094 R)
• M30: 39,678,142 km (0.104 R)
• M31: 42,416,083 km (0.118 R)
• M32: 46,904,318 km (0.092 R)
• M33: 49,340,071 km (0.029 R)
• M34: 49,650,337 km (0.102 R)
• M35: 54,462,002 km (0.059 R)

Planet 7 - Ice Giant

Semi-Major Axis: 10.53 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 113.8

Radius: 5

Gravity: 4.55 G

Time & Orbit

Eccentricity (e): 0.019

Orbit Range: 10.33 AU - 10.73 AU

Year: 22786 Days

Day: 25 Hours

Environment

Temp: -227 °C

Axial Tilt: 23.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 45,628,074 km

• M1: 179,368 km (0.109 R)
• M2: 466,297 km (0.113 R)
• M3: 715,975 km (0.102 R)
• M4: 1,760,019 km (0.094 R)
• M5: 4,614,047 km (0.09 R)
• M6: 4,853,553 km (0.045 R)
• M7: 6,358,807 km (0.111 R)
• M8: 6,580,661 km (0.041 R)
• M9: 8,589,760 km (0.109 R)
• M10: 9,563,941 km (0.092 R)
• M11: 11,510,210 km (0.094 R)
• M12: 16,998,806 km (0.095 R)
• M13: 20,381,962 km (0.052 R)
• M14: 35,543,856 km (0.11 R)
• M15: 36,713,412 km (0.117 R)

Kuiper Belt

Range: 30 - 50 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 363 - 17,997 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit