🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.27 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.54 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.31

Radius: 1.11

Gravity: 1.06 G

Time & Orbit

Eccentricity (e): 0.191

Orbit Range: 0.44 AU - 0.64 AU

Year: 150 Days

Day: 43.1 Hours

Environment

Temp: 180 °C

Axial Tilt: 20.4 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 72,041,404 km

• M1: 98,884 km (0.035 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.56 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.21

Radius: 1.78

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.156

Orbit Range: 0.47 AU - 0.65 AU

Year: 159 Days

Day: 47.8 Hours

Environment

Temp: 142 °C

Axial Tilt: 44.3 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 1.48 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.45

Radius: 1.16

Gravity: 1.08 G

Time & Orbit

Eccentricity (e): 0.22

Orbit Range: 1.15 AU - 1.81 AU

Year: 682 Days

Day: 29.8 Hours

Environment

Temp: -55 °C

Axial Tilt: 3.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 72,041,404 km

• M1: 30,518 km (0.094 R)

Planet 4 - Terrestrial

Semi-Major Axis: 2.34 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.26

Radius: 1.6

Gravity: 1.27 G

Time & Orbit

Eccentricity (e): 0.108

Orbit Range: 2.09 AU - 2.59 AU

Year: 1356 Days

Day: 19.3 Hours

Environment

Temp: -98 °C

Axial Tilt: 20 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 2.79 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.26

Radius: 0.58

Gravity: 0.77 G

Time & Orbit

Eccentricity (e): 0.23

Orbit Range: 2.15 AU - 3.43 AU

Year: 1765 Days

Day: 12.2 Hours

Environment

Temp: -99 °C

Axial Tilt: 49.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Gas Giant

Semi-Major Axis: 6.26 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 103.9

Radius: 12.8

Gravity: 0.63 G

Time & Orbit

Eccentricity (e): 0.17

Orbit Range: 5.2 AU - 7.32 AU

Year: 5932 Days

Day: 5.1 Hours

Environment

Temp: -167 °C

Axial Tilt: 14.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 72,041,404 km

• M1: 159,172 km (0.029 R)
• M2: 560,394 km (0.059 R)
• M3: 1,050,626 km (0.083 R)
• M4: 1,494,034 km (0.115 R)
• M5: 1,981,125 km (0.079 R)
• M6: 5,587,630 km (0.052 R)
• M7: 6,321,258 km (0.101 R)
• M8: 7,004,322 km (0.05 R)
• M9: 8,453,626 km (0.112 R)
• M10: 11,736,701 km (0.118 R)
• M11: 12,685,002 km (0.099 R)
• M12: 15,447,775 km (0.059 R)
• M13: 16,586,514 km (0.12 R)

Planet 7 - Gas Giant

Semi-Major Axis: 9.26 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 954.9

Radius: 12.1

Gravity: 6.52 G

Time & Orbit

Eccentricity (e): 0.067

Orbit Range: 8.64 AU - 9.88 AU

Year: 10672 Days

Day: 14.8 Hours

Environment

Temp: -171 °C

Axial Tilt: 10.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 72,041,404 km

• M1: 150,495 km (0.053 R)
• M2: 603,328 km (0.092 R)
• M3: 1,188,256 km (0.112 R)
• M4: 3,407,989 km (0.06 R)
• M5: 3,938,164 km (0.108 R)
• M6: 5,031,874 km (0.079 R)
• M7: 6,014,882 km (0.081 R)
• M8: 6,792,342 km (0.092 R)
• M9: 10,424,279 km (0.119 R)
• M10: 11,144,742 km (0.119 R)
• M11: 11,838,876 km (0.12 R)
• M12: 12,257,002 km (0.112 R)
• M13: 13,700,771 km (0.065 R)
• M14: 14,770,097 km (0.097 R)
• M15: 15,255,093 km (0.098 R)
• M16: 19,692,166 km (0.091 R)
• M17: 22,024,547 km (0.107 R)
• M18: 23,396,957 km (0.113 R)
• M19: 26,717,881 km (0.064 R)
• M20: 27,961,338 km (0.108 R)
• M21: 37,256,003 km (0.111 R)
• M22: 40,132,471 km (0.053 R)
• M23: 40,806,410 km (0.108 R)
• M24: 42,038,198 km (0.111 R)
• M25: 44,576,276 km (0.065 R)
• M26: 55,087,471 km (0.091 R)

Planet 8 - Gas Giant

Semi-Major Axis: 9.4 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 521

Radius: 14.8

Gravity: 2.38 G

Time & Orbit

Eccentricity (e): 0.245

Orbit Range: 7.1 AU - 11.7 AU

Year: 10915 Days

Day: 14.5 Hours

Environment

Temp: -184 °C

Axial Tilt: 12 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 72,041,404 km

• M1: 184,155 km (0.099 R)
• M2: 649,704 km (0.094 R)
• M3: 1,936,544 km (0.099 R)
• M4: 2,505,316 km (0.109 R)
• M5: 3,882,962 km (0.064 R)
• M6: 5,042,196 km (0.069 R)
• M7: 8,167,894 km (0.058 R)
• M8: 10,722,427 km (0.045 R)
• M9: 12,639,225 km (0.082 R)
• M10: 14,775,183 km (0.108 R)
• M11: 17,213,778 km (0.108 R)
• M12: 19,519,530 km (0.078 R)
• M13: 21,358,537 km (0.049 R)
• M14: 21,856,698 km (0.059 R)
• M15: 24,106,051 km (0.08 R)
• M16: 28,757,947 km (0.086 R)
• M17: 29,263,887 km (0.11 R)
• M18: 31,561,411 km (0.112 R)
• M19: 33,195,319 km (0.119 R)
• M20: 36,631,432 km (0.071 R)

Planet 9 - Ice Giant

Semi-Major Axis: 12 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 938.2

Radius: 3

Gravity: 104.24 G

Time & Orbit

Eccentricity (e): 0.204

Orbit Range: 9.55 AU - 14.45 AU

Year: 15744 Days

Day: 24.6 Hours

Environment

Temp: -187 °C

Axial Tilt: 11.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (39)

Outer Limit: 72,041,404 km

• M1: 37,699 km (0.096 R)
• M2: 184,753 km (0.115 R)
• M3: 515,813 km (0.088 R)
• M4: 902,075 km (0.117 R)
• M5: 995,873 km (0.107 R)
• M6: 1,438,832 km (0.079 R)
• M7: 1,704,069 km (0.106 R)
• M8: 1,923,679 km (0.106 R)
• M9: 3,510,015 km (0.092 R)
• M10: 4,146,404 km (0.064 R)
• M11: 4,374,541 km (0.078 R)
• M12: 4,750,032 km (0.112 R)
• M13: 4,891,701 km (0.105 R)
• M14: 5,525,846 km (0.05 R)
• M15: 6,005,158 km (0.095 R)
• M16: 6,425,229 km (0.11 R)
• M17: 7,608,847 km (0.115 R)
• M18: 8,983,951 km (0.083 R)
• M19: 10,161,735 km (0.071 R)
• M20: 12,480,202 km (0.068 R)
• M21: 12,682,309 km (0.119 R)
• M22: 13,442,266 km (0.105 R)
• M23: 14,013,581 km (0.107 R)
• M24: 17,785,691 km (0.12 R)
• M25: 18,300,158 km (0.089 R)
• M26: 20,457,210 km (0.108 R)
• M27: 20,550,559 km (0.083 R)
• M28: 26,246,348 km (0.104 R)
• M29: 29,690,839 km (0.089 R)
• M30: 33,814,205 km (0.109 R)
• M31: 35,673,108 km (0.103 R)
• M32: 43,635,455 km (0.065 R)
• M33: 49,778,243 km (0.114 R)
• M34: 55,377,841 km (0.101 R)
• M35: 56,289,041 km (0.062 R)
• M36: 57,395,617 km (0.063 R)
• M37: 61,577,027 km (0.083 R)
• M38: 62,751,669 km (0.044 R)
• M39: 68,431,302 km (0.075 R)

Kuiper Belt

Range: 30 - 47 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 505 - 12,045 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit