🌌 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 - Terrestrial

Semi-Major Axis: 0.6 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.75

Radius: 1.86

Gravity: 1.37 G

Time & Orbit

Eccentricity (e): 0.084

Orbit Range: 0.55 AU - 0.65 AU

Year: 305 Days

Day: 32.5 Hours

Environment

Temp: -130 °C

Axial Tilt: 1.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.78 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 321

Radius: 10.4

Gravity: 2.97 G

Time & Orbit

Eccentricity (e): 0.131

Orbit Range: 0.68 AU - 0.88 AU

Year: 452 Days

Day: 10.2 Hours

Environment

Temp: -136 °C

Axial Tilt: 30 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 29,882,277 km

• M1: 129,552 km (0.097 R)
• M2: 387,458 km (0.08 R)
• M3: 585,227 km (0.06 R)
• M4: 789,278 km (0.12 R)
• M5: 1,093,112 km (0.057 R)
• M6: 1,343,090 km (0.096 R)
• M7: 1,554,771 km (0.117 R)
• M8: 1,895,405 km (0.116 R)
• M9: 2,124,589 km (0.053 R)
• M10: 2,550,793 km (0.046 R)
• M11: 3,279,036 km (0.069 R)
• M12: 3,719,601 km (0.057 R)
• M13: 4,111,398 km (0.102 R)
• M14: 4,336,992 km (0.117 R)
• M15: 4,541,642 km (0.113 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.87 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 64.2

Radius: 9.3

Gravity: 0.74 G

Time & Orbit

Eccentricity (e): 0.022

Orbit Range: 0.85 AU - 0.89 AU

Year: 532 Days

Day: 14.6 Hours

Environment

Temp: -142 °C

Axial Tilt: 32.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 29,882,277 km

• M1: 116,387 km (0.071 R)
• M2: 290,818 km (0.105 R)
• M3: 530,474 km (0.118 R)
• M4: 721,511 km (0.079 R)
• M5: 933,042 km (0.102 R)
• M6: 1,233,584 km (0.116 R)
• M7: 2,114,566 km (0.101 R)
• M8: 2,313,980 km (0.116 R)
• M9: 2,544,510 km (0.089 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.96 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 703.8

Radius: 13.4

Gravity: 3.92 G

Time & Orbit

Eccentricity (e): 0.094

Orbit Range: 0.87 AU - 1.05 AU

Year: 617 Days

Day: 6.1 Hours

Environment

Temp: -160 °C

Axial Tilt: 21.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 29,882,277 km

• M1: 166,652 km (0.085 R)
• M2: 613,650 km (0.109 R)
• M3: 1,030,580 km (0.111 R)
• M4: 1,354,310 km (0.105 R)
• M5: 1,688,960 km (0.09 R)
• M6: 2,027,949 km (0.085 R)
• M7: 2,941,992 km (0.104 R)
• M8: 3,277,689 km (0.1 R)
• M9: 4,637,235 km (0.09 R)
• M10: 4,941,068 km (0.114 R)
• M11: 5,591,220 km (0.066 R)
• M12: 6,651,271 km (0.056 R)
• M13: 7,202,389 km (0.114 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.2 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 323.5

Radius: 11.7

Gravity: 2.36 G

Time & Orbit

Eccentricity (e): 0.011

Orbit Range: 3.16 AU - 3.24 AU

Year: 3755 Days

Day: 11.5 Hours

Environment

Temp: -214 °C

Axial Tilt: 35 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 29,882,277 km

• M1: 146,157 km (0.089 R)
• M2: 396,135 km (0.083 R)
• M3: 620,831 km (0.112 R)
• M4: 2,022,713 km (0.099 R)
• M5: 3,277,390 km (0.092 R)
• M6: 4,015,805 km (0.031 R)
• M7: 4,607,016 km (0.119 R)
• M8: 5,082,737 km (0.068 R)
• M9: 5,420,080 km (0.076 R)
• M10: 5,685,617 km (0.084 R)
• M11: 6,610,132 km (0.077 R)
• M12: 7,629,940 km (0.088 R)
• M13: 8,724,548 km (0.062 R)
• M14: 9,114,699 km (0.109 R)
• M15: 10,619,654 km (0.088 R)
• M16: 12,241,295 km (0.068 R)
• M17: 13,080,090 km (0.105 R)
• M18: 14,308,288 km (0.097 R)
• M19: 15,454,358 km (0.103 R)
• M20: 16,859,680 km (0.06 R)
• M21: 18,514,532 km (0.109 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.48 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 808.4

Radius: 8.4

Gravity: 11.46 G

Time & Orbit

Eccentricity (e): 0.158

Orbit Range: 2.93 AU - 4.03 AU

Year: 4259 Days

Day: 9.7 Hours

Environment

Temp: -215 °C

Axial Tilt: 33 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 29,882,277 km

• M1: 130,150 km (0.086 R)
• M2: 390,151 km (0.098 R)
• M3: 790,774 km (0.079 R)
• M4: 1,092,812 km (0.106 R)
• M5: 2,523,566 km (0.092 R)
• M6: 3,048,206 km (0.118 R)
• M7: 3,931,282 km (0.075 R)
• M8: 4,229,730 km (0.085 R)
• M9: 4,584,427 km (0.087 R)
• M10: 6,361,500 km (0.037 R)
• M11: 9,095,401 km (0.06 R)
• M12: 10,492,047 km (0.095 R)
• M13: 10,909,574 km (0.117 R)
• M14: 12,398,223 km (0.11 R)
• M15: 13,314,210 km (0.058 R)
• M16: 13,943,270 km (0.12 R)
• M17: 15,663,795 km (0.072 R)
• M18: 17,888,614 km (0.05 R)
• M19: 18,251,090 km (0.078 R)
• M20: 19,927,484 km (0.091 R)
• M21: 23,090,431 km (0.093 R)
• M22: 24,812,901 km (0.115 R)
• M23: 25,562,387 km (0.088 R)
• M24: 27,095,017 km (0.105 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.27 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 263.5

Radius: 14.1

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.061

Orbit Range: 4.95 AU - 5.59 AU

Year: 7936 Days

Day: 7.9 Hours

Environment

Temp: -209 °C

Axial Tilt: 54.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 29,882,277 km

• M1: 654,491 km (0.099 R)
• M2: 984,055 km (0.035 R)
• M3: 1,574,218 km (0.066 R)
• M4: 2,324,901 km (0.112 R)
• M5: 3,104,305 km (0.069 R)
• M6: 3,835,241 km (0.1 R)
• M7: 4,286,278 km (0.119 R)
• M8: 5,515,973 km (0.111 R)
• M9: 6,271,442 km (0.102 R)
• M10: 7,220,940 km (0.105 R)
• M11: 13,470,989 km (0.077 R)
• M12: 14,073,868 km (0.102 R)
• M13: 14,442,029 km (0.08 R)
• M14: 18,668,468 km (0.099 R)
• M15: 20,887,752 km (0.083 R)
• M16: 27,268,849 km (0.115 R)
• M17: 28,880,767 km (0.101 R)

Kuiper Belt

Range: 30 - 46 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 404 - 14,938 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit