🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.29 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.58 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.52

Radius: 1.83

Gravity: 1.35 G

Time & Orbit

Eccentricity (e): 0.047

Orbit Range: 0.55 AU - 0.61 AU

Year: 290 Days

Day: 29.5 Hours

Environment

Temp: -130 °C

Axial Tilt: 36.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 33,359,727 km

• M1: 633,846 km (0.065 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.72 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 61.9

Radius: 9.8

Gravity: 0.64 G

Time & Orbit

Eccentricity (e): 0.208

Orbit Range: 0.57 AU - 0.87 AU

Year: 401 Days

Day: 12.2 Hours

Environment

Temp: -140 °C

Axial Tilt: 21.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 33,359,727 km

• M1: 121,922 km (0.056 R)
• M2: 493,075 km (0.081 R)
• M3: 987,196 km (0.042 R)
• M4: 1,330,972 km (0.086 R)
• M5: 2,100,205 km (0.085 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.87 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 172.6

Radius: 14.2

Gravity: 0.86 G

Time & Orbit

Eccentricity (e): 0.107

Orbit Range: 0.78 AU - 0.96 AU

Year: 532 Days

Day: 6.7 Hours

Environment

Temp: -142 °C

Axial Tilt: 7.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 33,359,727 km

• M1: 176,525 km (0.09 R)
• M2: 929,302 km (0.077 R)
• M3: 1,531,882 km (0.099 R)
• M4: 2,585,201 km (0.094 R)
• M5: 3,082,165 km (0.105 R)
• M6: 3,856,484 km (0.053 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 234.2

Radius: 9.1

Gravity: 2.83 G

Time & Orbit

Eccentricity (e): 0

Orbit Range: 1.75 AU - 1.75 AU

Year: 1519 Days

Day: 10.1 Hours

Environment

Temp: -184 °C

Axial Tilt: 46.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 33,359,727 km

• M1: 113,844 km (0.087 R)
• M2: 464,501 km (0.093 R)
• M3: 1,142,778 km (0.069 R)
• M4: 1,438,683 km (0.057 R)
• M5: 1,724,863 km (0.099 R)
• M6: 2,069,088 km (0.106 R)
• M7: 2,448,169 km (0.098 R)
• M8: 3,077,527 km (0.095 R)
• M9: 4,090,305 km (0.052 R)
• M10: 5,123,278 km (0.037 R)
• M11: 5,641,186 km (0.061 R)
• M12: 6,647,830 km (0.068 R)
• M13: 7,335,232 km (0.12 R)
• M14: 8,298,493 km (0.116 R)
• M15: 9,122,777 km (0.109 R)
• M16: 9,512,330 km (0.063 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.28 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 54.5

Radius: 14.6

Gravity: 0.26 G

Time & Orbit

Eccentricity (e): 0.002

Orbit Range: 2.28 AU - 2.28 AU

Year: 2258 Days

Day: 13.6 Hours

Environment

Temp: -197 °C

Axial Tilt: 0.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 33,359,727 km

• M1: 185,801 km (0.084 R)
• M2: 641,625 km (0.111 R)
• M3: 1,396,496 km (0.091 R)
• M4: 1,900,940 km (0.076 R)
• M5: 2,477,042 km (0.082 R)
• M6: 2,955,904 km (0.072 R)
• M7: 3,458,104 km (0.053 R)
• M8: 3,917,819 km (0.107 R)
• M9: 5,233,532 km (0.061 R)
• M10: 6,420,741 km (0.103 R)
• M11: 6,993,700 km (0.104 R)
• M12: 7,467,926 km (0.12 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.5 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 786

Radius: 13.6

Gravity: 4.25 G

Time & Orbit

Eccentricity (e): 0.055

Orbit Range: 2.36 AU - 2.64 AU

Year: 2593 Days

Day: 14.4 Hours

Environment

Temp: -189 °C

Axial Tilt: 39.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 33,359,727 km

• M1: 169,195 km (0.119 R)
• M2: 838,496 km (0.075 R)
• M3: 1,342,042 km (0.111 R)
• M4: 1,789,340 km (0.1 R)
• M5: 2,297,075 km (0.056 R)
• M6: 3,164,893 km (0.096 R)
• M7: 3,610,096 km (0.112 R)
• M8: 4,410,444 km (0.092 R)
• M9: 5,301,898 km (0.108 R)
• M10: 5,960,727 km (0.091 R)
• M11: 6,673,711 km (0.077 R)
• M12: 7,473,461 km (0.09 R)
• M13: 8,706,596 km (0.107 R)
• M14: 9,772,631 km (0.096 R)
• M15: 10,844,350 km (0.081 R)
• M16: 11,866,253 km (0.093 R)
• M17: 13,040,895 km (0.111 R)
• M18: 15,069,742 km (0.118 R)
• M19: 16,133,682 km (0.083 R)
• M20: 16,870,451 km (0.054 R)
• M21: 17,906,117 km (0.096 R)
• M22: 19,099,459 km (0.101 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.18 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 734.7

Radius: 14.2

Gravity: 3.64 G

Time & Orbit

Eccentricity (e): 0.219

Orbit Range: 3.26 AU - 5.1 AU

Year: 5606 Days

Day: 8.8 Hours

Environment

Temp: -206 °C

Axial Tilt: 29.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 33,359,727 km

• M1: 176,525 km (0.116 R)
• M2: 1,380,040 km (0.111 R)
• M3: 1,830,330 km (0.109 R)
• M4: 2,945,881 km (0.057 R)
• M5: 4,950,942 km (0.099 R)
• M6: 5,489,344 km (0.103 R)
• M7: 6,452,156 km (0.094 R)
• M8: 8,008,722 km (0.113 R)
• M9: 9,716,681 km (0.043 R)
• M10: 10,201,677 km (0.082 R)
• M11: 12,255,058 km (0.077 R)
• M12: 13,032,368 km (0.101 R)
• M13: 14,974,448 km (0.056 R)
• M14: 16,106,156 km (0.089 R)
• M15: 18,008,143 km (0.092 R)
• M16: 18,945,224 km (0.049 R)
• M17: 20,055,839 km (0.046 R)
• M18: 26,610,170 km (0.09 R)
• M19: 28,537,290 km (0.106 R)
• M20: 30,368,368 km (0.107 R)
• M21: 31,599,857 km (0.078 R)
• M22: 32,276,638 km (0.051 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: 472 - 15,041 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit