🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.27 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.54 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.1

Radius: 1.35

Gravity: 1.15 G

Time & Orbit

Eccentricity (e): 0.027

Orbit Range: 0.53 AU - 0.55 AU

Year: 256 Days

Day: 15.9 Hours

Environment

Temp: -123 °C

Axial Tilt: 36.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Terrestrial

Semi-Major Axis: 0.57 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.03

Radius: 1.01

Gravity: 1.01 G

Time & Orbit

Eccentricity (e): 0.044

Orbit Range: 0.54 AU - 0.6 AU

Year: 278 Days

Day: 16.6 Hours

Environment

Temp: -131 °C

Axial Tilt: 25.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Gas Giant

Semi-Major Axis: 0.96 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 775.8

Radius: 12.1

Gravity: 5.3 G

Time & Orbit

Eccentricity (e): 0.211

Orbit Range: 0.76 AU - 1.16 AU

Year: 607 Days

Day: 8.9 Hours

Environment

Temp: -152 °C

Axial Tilt: 10 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 36,344,402 km

• M1: 151,094 km (0.107 R)
• M2: 543,339 km (0.048 R)
• M3: 1,046,437 km (0.099 R)
• M4: 1,642,585 km (0.114 R)
• M5: 2,326,546 km (0.086 R)
• M6: 2,928,827 km (0.108 R)
• M7: 3,356,527 km (0.065 R)
• M8: 4,263,091 km (0.109 R)
• M9: 5,723,764 km (0.077 R)
• M10: 7,606,753 km (0.051 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.67 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 298.1

Radius: 13.1

Gravity: 1.74 G

Time & Orbit

Eccentricity (e): 0.144

Orbit Range: 1.43 AU - 1.91 AU

Year: 1393 Days

Day: 10.1 Hours

Environment

Temp: -182 °C

Axial Tilt: 31.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 36,344,402 km

• M1: 162,912 km (0.08 R)
• M2: 622,178 km (0.072 R)
• M3: 1,073,215 km (0.041 R)
• M4: 1,691,503 km (0.057 R)
• M5: 2,164,831 km (0.118 R)
• M6: 2,986,123 km (0.111 R)
• M7: 3,427,586 km (0.081 R)
• M8: 4,753,772 km (0.106 R)
• M9: 7,589,698 km (0.075 R)
• M10: 8,035,201 km (0.115 R)
• M11: 8,843,628 km (0.081 R)
• M12: 9,281,650 km (0.102 R)
• M13: 9,705,461 km (0.114 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.42 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 747.4

Radius: 9.8

Gravity: 7.78 G

Time & Orbit

Eccentricity (e): 0.114

Orbit Range: 2.14 AU - 2.7 AU

Year: 2431 Days

Day: 7.1 Hours

Environment

Temp: -203 °C

Axial Tilt: 117.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 36,344,402 km

• M1: 122,820 km (0.067 R)
• M2: 536,608 km (0.096 R)
• M3: 859,290 km (0.11 R)
• M4: 1,281,156 km (0.046 R)
• M5: 1,640,341 km (0.098 R)
• M6: 2,327,743 km (0.073 R)
• M7: 2,917,158 km (0.052 R)
• M8: 3,621,615 km (0.066 R)
• M9: 4,226,439 km (0.077 R)
• M10: 5,587,480 km (0.092 R)
• M11: 6,180,038 km (0.095 R)
• M12: 7,220,491 km (0.12 R)
• M13: 7,923,750 km (0.112 R)
• M14: 8,373,741 km (0.088 R)
• M15: 8,806,677 km (0.118 R)
• M16: 10,308,939 km (0.119 R)
• M17: 12,828,466 km (0.086 R)
• M18: 13,905,421 km (0.059 R)
• M19: 15,384,495 km (0.08 R)
• M20: 16,547,619 km (0.066 R)
• M21: 18,821,507 km (0.087 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.06 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 673.9

Radius: 9.2

Gravity: 7.96 G

Time & Orbit

Eccentricity (e): 0.09

Orbit Range: 3.69 AU - 4.43 AU

Year: 5282 Days

Day: 7.6 Hours

Environment

Temp: -220 °C

Axial Tilt: 3.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 36,344,402 km

• M1: 132,843 km (0.111 R)
• M2: 427,252 km (0.062 R)
• M3: 781,200 km (0.083 R)
• M4: 1,312,871 km (0.114 R)
• M5: 1,686,566 km (0.082 R)
• M6: 2,564,855 km (0.112 R)
• M7: 2,942,590 km (0.077 R)
• M8: 3,611,592 km (0.09 R)
• M9: 3,901,662 km (0.109 R)
• M10: 4,279,995 km (0.118 R)
• M11: 4,787,581 km (0.114 R)
• M12: 5,391,657 km (0.054 R)
• M13: 6,138,749 km (0.103 R)
• M14: 7,090,041 km (0.104 R)
• M15: 9,365,724 km (0.1 R)
• M16: 14,009,392 km (0.09 R)
• M17: 14,729,855 km (0.111 R)
• M18: 15,358,615 km (0.113 R)
• M19: 17,226,943 km (0.1 R)
• M20: 18,313,472 km (0.031 R)
• M21: 20,411,433 km (0.111 R)
• M22: 21,846,974 km (0.103 R)
• M23: 23,043,009 km (0.047 R)
• M24: 23,348,787 km (0.085 R)
• M25: 25,646,909 km (0.107 R)
• M26: 26,473,138 km (0.105 R)
• M27: 29,775,212 km (0.093 R)
• M28: 31,150,914 km (0.101 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.21 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 959.9

Radius: 13.8

Gravity: 5.04 G

Time & Orbit

Eccentricity (e): 0.249

Orbit Range: 3.16 AU - 5.26 AU

Year: 5577 Days

Day: 9 Hours

Environment

Temp: -213 °C

Axial Tilt: 24.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 36,344,402 km

• M1: 172,636 km (0.057 R)
• M2: 617,540 km (0.051 R)
• M3: 1,090,868 km (0.096 R)
• M4: 2,235,890 km (0.096 R)
• M5: 2,719,839 km (0.115 R)
• M6: 3,646,747 km (0.111 R)
• M7: 4,122,169 km (0.076 R)
• M8: 9,565,437 km (0.112 R)
• M9: 12,262,537 km (0.078 R)
• M10: 12,792,862 km (0.089 R)
• M11: 21,155,233 km (0.097 R)
• M12: 21,688,101 km (0.12 R)
• M13: 23,340,409 km (0.093 R)
• M14: 23,909,480 km (0.062 R)
• M15: 24,571,151 km (0.06 R)
• M16: 27,700,888 km (0.069 R)
• M17: 29,455,522 km (0.102 R)
• M18: 31,283,308 km (0.101 R)
• M19: 32,174,912 km (0.09 R)
• M20: 33,083,569 km (0.105 R)
• M21: 33,801,938 km (0.077 R)
• M22: 34,951,897 km (0.068 R)

Kuiper Belt

Range: 30 - 57 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 263 - 12,099 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit